Numerical Investigation of Heat Transfer Enhancement and Pressure Drop of a Double Tube Heat Exchanger with Rectangular Fins in the Annulus Side

Size: px
Start display at page:

Download "Numerical Investigation of Heat Transfer Enhancement and Pressure Drop of a Double Tube Heat Exchanger with Rectangular Fins in the Annulus Side"

Transcription

1 International Journal of Dynamics of Fluids. ISSN Volume 13, Number 2 (2017), pp Research India Publications Numerical Investigation of Heat Transfer Enhancement and Pressure Drop of a Double Tube Heat Exchanger with Rectangular Fins in the Annulus Side N Sreenivasalu Reddy * Rajarajeswari College of Engineering, Bengaluru, Karnataka, India. K Rajagopal Sri Krishnadevaraya University, Anantapuramu, Andhra Pradesh, India. P H Veena Smt.V.G.College for Women, Gulberga, Karnataka, India. Abstract In the present study the design and performance of double pipe heat exchanger with straight rectangular fins in the annulus side are analyzed numerically. Computational fluid dynamics (CFD) model using free open source code has been performed to study the fluid flow, heat transfer coefficient and pressure drop in the annulus side of double pipe heat exchanger for different configurations. A numerical investigation is carried out for different values of mass flow rate and varying the number of fins. The numerical results first validated with experimental results for a simple double pipe heat exchanger. Then the CFD model results have been validated with rectangular fins. The results of rectangular fins in the annulus side causes increased rate of heat transfer and pressured drop compared to plain double pipe heat exchanger. The numerical study is performed by varying mass flow rate of cold fluid in the annulus side and kept mass flow rate of hot fluid in the inner pipe is constant. The performance and increased pressure drop is a function of number of fins and mass flow rate.

2 296 N Sreenivasalu Reddy, K Rajagopal and P H Veena NOMENCLATURE A heat transfer surface area (m 2 ) Cp U Q T M LMTD K SIMPLE Specific heat, KJ/kg o C Overall heat transfer coefficient KW/m 2 o C Heat transfer rate, KW Temperature, o C Mass flow rate, kg/s Log mean temperature difference Thermal conductivity, KW/m o C Semi Implicit method for pressure linked equations INTRODUCTION Double pipe heat exchangers have an important role in various engineering process application. A double pipe heat exchanger consists inner pipe and outer pipe. Heat flows between two fluids, which are flowing in inner and outer pipes respectively. The fluids may flow in parallel or counter flow direction. Double pipe exchangers are used in applications involving low volume flow rate. Recently there are many studies have been done in improvements, enhance ment heat transfer rate, Yang et al. [1], Akpinar [2], Ma et al. [3], their results in low cost, raising thermal rating and life of the equipment. Pourahmad and Pesteei [4] studied on double pipe heat exchanger by providing curvy strip turbulators in the inside pipe, their findings are on improvements in enhancement of heat transfer characteristics. Ibrahim [5] investigated the increase of laminar flow and heat transfer plane tubes with helical tape inserts. Results of permeable baffles and flow pulsation on a concentric tube heat exchanger effectiveness was studied by Targui and Kahalerras [6], the authors proposed that addition of rotary machinery in the inner pipe increases the heat transfer. An analysis of using plain and perforated variable spacing with helical tabulators was studied by Sheikholeslami et al. [7], heat transfer and fluid flow analysis were carried out for different area ratios and pitch ratios. Results shows that effectiveness is an increasing function of open area ratio and decreasing function of pitch ratio. Recently the fast growth of various computational methods on double heat exchanger is done based on methods [8, 9]. These methods are complement to experiments and theory. Gorman et al. [10] presented a numerical method for the thermal design. A detailed review was carried out by Ahmed et al. [11], on star shaped finned tube heat exchangers. Further the heat transfer enhancement methods are studied in [12-20].

3 Numerical Investigation of Heat Transfer Enhancement and Pressure Drop 297 In the present paper a detailed numerical study of heat transfer for a water to water concentric tube exchanger with rectangular fins at the annulus side is carried out. In the literature baffles are almost used in shell and tube heat exchanger to increase heat transfer rate and to decrease pressure drop, and no publication studying on thermo hydraulic performance in the annulus side of the concentric tube heat exchanger could be found. The mass flow rate in the inner pipe is kept constant as in conventional concentric tube heat exchanger. The experiments were conducted for different cases of number of fins in the annulus side. The numerical results of simple plain tube are validated with experimental results. NUMERICAL METHOD Geometry Details The main objective of this research is to compare different configuration of rectangular fins in the annulus side of concentric tube heat exchanger. Addition of these fins changes the pressure and velocity distribution along the annulus side of the heat exchanger and thus changes in heat transfer and pressure drop. The configuration of rectangular finned heat exchanger is as shown in Figure 1. The number of rectangular fins varied from 6 to 8. In modified configurations the effect of geometric, flow and thermal variables are numerically studied. Though the geometry is simple, its numerical thermo fluid study is complex because of the flow regime in annulus side. Figure 1. Model of Inner Pipe of Double Pipe Heat Exhanger with 8 Fins and 6fins The hot water flows in the inner tube while the cold water flows in the annulus side of the double pipe heat exchanger. The material of the heat exchanger parts is copper and its thermal conductivity is 401 W/m-k. Water is taken as a Newtonian and incompressible fluid with constant thermo physical properties. In addition, the fluid is considered as laminar and steady state. The viscous heating and compression work

4 298 N Sreenivasalu Reddy, K Rajagopal and P H Veena terms are neglected in the energy equation. The heat exchanger is assumed newly fabricated and fouling resistance is not considered. In the present study the parts of the heat exchangers are modeled using Solid Edge software. The unstructured mesh is generated using ANSYS Fluent software. And it is solved in open source codes (OpenFoam). Domain Definitions, Mess Sensitivity and Boundary conditions In the present study there are three double pipe heat exchangers are modeled. One simple unfinned double pipe heat exchanger, second double pipe heat exchanger with 6 fins, and third double pipe heat exchanger is with 8 fins. For each of the three studied heat exchangers, three domains are defined. Two fluid domains (water in the inner tube and water in the annulus side) and one solid domain (copper wall with rectangular fins). The domains are meshed with a mix of unstructured tetrahedral and prism grid. To ensure the accuracy of the results, the mesh sensitivity test was conducted for 6 finned and 8 finned double pipe heat exchanger. The boundary condition of no slip is set for all the solid walls. Zero heat flux is set for annulus side wall, the walls of the inner tube and fins have the boundary condition of coupling heat transfer. These walls considered as solid fluid interfaces between two fluid domains and the solid domain. The inlet boundary conditions for the inner tube side and annulus are set as mass inlet, the out let boundary conditions are set as pressure out let is zero, so that inlet pressure is equal to pressure drop on both the inner tube side and annulus. The open source codes are used to calculate fluid flow and heat transfer in the computational domains. The governing equations are solved by finite volume formulation with conjugate heat transfer SIMPLE algorithm. The numerical solution is based on continuity, momentum and energy equations. DATA REDUCTION For the temperatures deviations, a log mean temperature difference (LMTD) LMTD = [(Tw,h,in Tw,c,in) (Tw,h,out Tw,c,out)] ln [ Tw,h,in Tw,c,in Tw,h,out Tw,c,out ] (1) LMTD = [(Tw,h,in Tw,c,out) (Tw,h,out Tw,c,in)] ln [ Tw,h,in Tw,c,out Tw,h,out Tw,c,in ] (2)

5 Numerical Investigation of Heat Transfer Enhancement and Pressure Drop 299 For parallel flow and for counter flow is used. Heat transferred to the cold water in the annulus, Qw,c, can be determined from Qw, c = mw, c Cp, w(tw, c, out Tw, c, in) = UOAOLMTD (3) where mw, c is the mass flow rate of cold water which passing through the annulus, Uo is heat transfer coefficient, Ao is the surface area of the outside diameter of the inner pipe, Cp, w is the specific heat of cold and hot water, Tw, c, in and Tw, c, out are the inlet and outlet temperatures of cold water.heat transferred from the hot water in the inner pipe, Qw,h, can be determined as Qw, h = mw, h Cp, w(tw, h, in Tw, h, out) = UiAiLMTD (4) where mw, h is the mass flow rate of hot water which passing through the inner tube of heat exchanger, Ui is heat transfer coefficient, Ai is the surface area of the inside diameter of the inner pipe, Cp, w is the specific heat of cold and hot water, Tw, h, in and Tw, h, out are the inlet and outlet temperatures of hot water. The average heat transfer rate, Qave, is determined from the hot water side and cold water side as Qave = Qw,c+Qw,h 2 Qavg = UoAo LMTD (6) The overall heat transfer coefficient Uo based on outer surface area of the inner pipe can be determined as per the energy balance equation t, with negligible heat losses to surroundings, from equations (1) and (2): (5) RESULTS AND DISCUSSION To validate the numerical results a comparison is made with experimental data to evaluate heat transfer for simple double pipe heat exchanger. Validation is done for a hot water inlet temperature of 55 o C and 65 o C by varying the mass flow rate, from 0.01 kg/s to 0.03 kg/s in the annulus side of the heat exchanger, keeping constant mass flow rate of 0.01 kg/s in the inner pipe. Validation of rate of heat transfer and heat transfer coefficient at inlet temperature of 65 o C for counter flow direction with plain tube as shown in figure 2 and Figure 3 respectively. The numerical results are good agreement with experiment results. Therefore it is concluded that present

6 300 N Sreenivasalu Reddy, K Rajagopal and P H Veena numerical model produce a good prediction for heat transfer characteristics and pressure drop. Rate of Heat transfer Q Watts Experimental plain tube Thi=65C Numerical Plain Tube Mass flow rate Kg/s Figure 2. Validation of rate of heat transfer at inlet temperature of 65 o C for counter flow direction with plain tube Heat transfer coefficient w/m 2 o C Experimental plain tube Thi=65C Numerical Plain tube Mass flow rate Kg/s Figure 3. Validation heat transfer coefficient at inlet temperature of 65 o C for counter flow direction with plain tube Figure 4 and 6 shows the variation of rate of heat transfer in the annulus and mass flow rate in the annulus side of different configuration of double tube heat exchanger for counter flow direction at inlet temperature of 55 o C and 65 o C respectively. It can be seen from the Figure 4 that maximum deviation for the heat transfer in the annulus side is 12 %. Heat transfer coefficient on the annulus side is determined by Newton s law of cooling from the temperature field. Figure 5 and 7 shows the variation of heat transfer coefficient using plain tube, 6 fins and 8 fins at inlet temperature of 55 o C and 65 o C respectively. It can be seen that there is an increment in heat transfer coefficient as the increasing mass flow rate.

7 Numerical Investigation of Heat Transfer Enhancement and Pressure Drop 301 Rate of Heat transfer Q Watts Numerical Plain Tube numerical 6 fins Numerical 8 fins Mass flow rate Kg/s Figure 4. The variation of rate of heat transfer at inlet temperature of 55 o C 700 Rate of Heat transfer Q Watts Numerical Plain Tube Numerical 6 fins Numerical 8 fins Mass flow rate Kg/s Figure 6. The variation of rate of heat transfer at inlet temperature of 65 o C

8 302 N Sreenivasalu Reddy, K Rajagopal and P H Veena Heat transfer coefficient w/m 2 o C Numerical Plain tube Numerical 6 fins Numerical 8 fins Mass flow rate Kg/s Figure 5. The variation of heat transfer coefficient at inlet temperature of 55 o C Heat transfer coefficient w/m 2 o C Numerical Plain tube Numerical 6 fins Numerical 8 fins Mass flow rate Kg/s Figure 7. The variation of rate of heat transfer coefficient at inlet temperature of 65 o C From the above discussion it is concluded that numerical model as a reasonable precision the same model is used for a similar double pipe heat exchanger with rectangular fins. As it is mention in the boundary conditions, both side out lets are zero pressure, therefore the pressure drop is equal to inlet pressures for both annulus and inner pipe side. Variation of pressure drop in the annulus side and mass flow rate of cold water as shown in Figure 8. The results obtained for 6 fins and 8 fins are same trend that of plain tube. It is very clear from Figure 8 that the rise in the pressure drop is a function of mass flow rate in annulus side. As it can be observed that there is an increment in pressure drop as the mass flow rate increases.

9 Numerical Investigation of Heat Transfer Enhancement and Pressure Drop 303 Pressure drop in Pa plain tube Thi=65C 6 fins counterl flow 8 fins Mass flow rate Kg/s Figure 8. The variation of pressure drop at inlet temperature of 55 o C Figure 9. The temperature distribution at inlet temperature of 65 o C using 6 fins Figure 9 and 13 shows the temperature distribution at the center plane of the heat exchanger, for a counter flow direction at a mass flow rate of 0.01 kg/s using 6 and 8 fins respectively. The velocity stream lines for 6 fins and 8 fins are as shown in Figure 14 and 17 respectively. It can be observed that the flow patterns are in the annulus side is irrotational. Figure 12 shows that flow patterns in the annulus side. Increasing the velocity of the fluid is the one of the most enhance heat transfer performance for the same mass flow rate. Out of three studied without fin, 6 fins and 8 fins the highest velocity in the annulus side is located at the near the inlet at the entrance region. This is because of the sudden decreasing flow area, velocity of the annulus have to increase

10 304 N Sreenivasalu Reddy, K Rajagopal and P H Veena to keep mass flow rate through annulus side constant. Figure 16 shows turbulent kinetic energy contours, the maximum values or identified near to the entrance region. The highest value of turbulence and velocity at the entrance region indicate that large local pressure drop could be generated. The distribution of pressure, using 6 fins and 8 fins at the mass flow rate of cold fluid is 0.01 kg/s in the annulus side for a inlet hot water temperature of 65 o C as shown in figure 10 and 15 respectively. Figure 10. The pressure variation at inlet temperature of 65 o C using 6 fins Figure 11. The velocity distribution at inlet temperature of 65 o C using 6 fins

11 Numerical Investigation of Heat Transfer Enhancement and Pressure Drop 305 Figure 12. The velocity vector at inlet temperature of 65 o C using 6 fins Figure 14. The streamlines at inlet temperature of 65 o C using 6 fins Figure 16. The variation turbulence kinetic energy distribution at inlet temperature of 65 o C using 6 fins

12 306 N Sreenivasalu Reddy, K Rajagopal and P H Veena Figure 13. The temperature distribution at inlet temperature of 65 o C using 8 fins Figure 15. The pressure variation at inlet temperature of 65 o C using 8 fins Figure 17. The streamlines at inlet temperature of 65 o C using 8 fins

13 Numerical Investigation of Heat Transfer Enhancement and Pressure Drop 307 CONCLUSIONS In this study CFD model is used to investigate and compare the performance of double pipe heat exchanger with rectangular fins in the annulus side. The effects of rectangular fins and mass flow rate are studied. The results shows that compared to plain annulus side, using rectangular fins in the annulus side enhance the heat transfer on average with increasing pressure drop equal on average to 2,5,11 time pressure drop for a plain annulus side for plain tube, 6 fins and 8 fins respectively. The increase in pressure drop because of entrance region effect. The heat transfer enhancement makes the double tube heat exchanger more compact without changing it size and weight. The highest thermo hydraulic performance is obtained when 8 fins are used in a laminar flow region. REFERENCES [1] Yang D, Guo Y, Zhang J, Evaluation of the thermal performance of an earth to air heat exchanger (EAHE) in a harmonic thermal environment. Energy Conversion and Management, Vol. 109, pp [2] Akpinar EK, Evaluation of heat transfer and exergy loss in a concentric double pipe exchanger equipped with helical wires, Energy Conversion and Management; Volume 47, Issues 18 19, pp [3] Ma T, Li L, Xu X-Y, Chen Y-T, Wang Q-W, Study on local thermal hydraulic performance and optimization of zigzag-type printed circuit heat exchanger at high temperature, Energy Conversion and Management, Volume 104, pp [4] Pourahmad S, Pesteei S M, Effectiveness-NTU analyses in a double tube heat exchanger equipped with wavy strip considering various angles, Energy Conversion and Management, Volume 123, pp [5] Ibrahim E Z, 2011, Augmentation of laminar flow and heat transfer in flat tubes by means of helical screw-tape inserts, Energy Conversion and Management, Volume 52, Issue 1, pp [6] Targui N, Kahalerras H, Analysis of a double pipe heat exchanger performance by use of porous baffles and pulsating flow, Energy Conversion and Management, Volume 76, pp [7] Sheikholeslami M, Gorji-Bandpy M, Ganji D D, Effect of discontinuous helical turbulators on heat transfer characteristics of double pipe water to air heat exchanger, Energy Conversion and Management, Volume 118, Pages [8] Du YP, Qu ZG, Zhao CY, Tao WQ, Numerical study of conjugated heat transfer in metal foam filled double-pipe, International Journal Heat and Mass Transfer, Volume 53, Issues 21 22, pp

14 308 N Sreenivasalu Reddy, K Rajagopal and P H Veena [9] Rennie T J, Raghavan V G S, Numerical analysis of the lethality and processing uniformity in a double-pipe helical heat exchanger. Chem Eng Process, volume 49 Issue7, pp [10] Gorman J M, Krautbauer K R, Sparrow E M, Thermal and fluid flow first principles numerical design of an enhanced double pipe heat exchanger, Applied Thermal Engineering, Volume 107, pp [11] Sayed Ahmed E, Mesalhy O M, Abdelatief M A, 2015, Flow and heat transfer enhancement in tube heat exchangers, Heat and Mass Transfer, Volume 51, Issue 11, pp [12] Ibrahim E, Moawed M, Forced convection and entropy generation from elliptic tubes with longitudinal fins Energy Conversion and Management, Volume 50, Issue 8, pp [13] Sayed Ahmed E, Ahmed Sayed, Mesalhy Osama M, Abdelatief Mohamed A, Effect of longitudinal-external-fins on fluid flow characteristics for wingshaped tubes bundle in crossflow, Journal Thermodynamics, 16. [14] Syed KS, Ishaq M, Iqbal Z, Hassan A, Numerical study of an innovative design of a finned double-pipe heat exchanger with variable fin-tip thickness, Energy Conversion and Management, Volume 98, pp [15] Zohir A E, Habib M A, Nemitallah M A, Heat transfer characteristics in a doublepipe heat exchanger equipped with coiled circular wires, Exp Heat Transfer, Pages [16] Eiamsa-ard S, Thianpong C, Promvonge P, Experimental investigation of heat transfer and flow friction in a circular tube fitted with regularly spaced twisted tape elements, Int Commun Heat Mass Transfer 2006;33: //2006. [17] Sheikholeslami M, Gorji-Bandpy M, Ganji D D, Experimental study of the influence of perforated circular-ring on pressure loss and heat transfer enhancement using sensitivity analysis, Appl Therm Eng, pp [18] Agrawal AK, Sengupta S, Laminar fluid flow and heat transfer in an annulus with an externally enhanced inner tube, Int J Heat Fluid Flow, vol. 4, pp [19] Jaisankar S, Radhakrishnan T K, Sheeba K N, Experimental studies on heat transfer and thermal performance characteristics of thermo siphon solar water. heating system with helical and Left-Right twisted tapes, Energy Conversion and Management, Volume 52, Issue 5, pp [20] Kahalerras H, Targui N, Numerical analysis of heat transfer enhancement in a double pipe heat exchanger with porous fins, International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 18 Issue: 5, pp

Analysis of Heat Transfer in Pipe with Twisted Tape Inserts

Analysis of Heat Transfer in Pipe with Twisted Tape Inserts Proceedings of the 2 nd International Conference on Fluid Flow, Heat and Mass Transfer Ottawa, Ontario, Canada, April 30 May 1, 2015 Paper No. 143 Analysis of Heat Transfer in Pipe with Twisted Tape Inserts

More information

Laminar flow heat transfer studies in a twisted square duct for constant wall heat flux boundary condition

Laminar flow heat transfer studies in a twisted square duct for constant wall heat flux boundary condition Sādhanā Vol. 40, Part 2, April 2015, pp. 467 485. c Indian Academy of Sciences Laminar flow heat transfer studies in a twisted square duct for constant wall heat flux boundary condition RAMBIR BHADOURIYA,

More information

Numerical investigation of heat transfer enhancement in a pipe heat exchanger by adding nano particle and twisted tape

Numerical investigation of heat transfer enhancement in a pipe heat exchanger by adding nano particle and twisted tape 2015, TextRoad Publication ISSN: 2090-4274 Journal of Applied Environmental and Biological Sciences www.textroad.com Numerical investigation of heat transfer enhancement in a pipe heat exchanger by adding

More information

CFD Analysis on Flow Through Plate Fin Heat Exchangers with Perforations

CFD Analysis on Flow Through Plate Fin Heat Exchangers with Perforations CFD Analysis on Flow Through Plate Fin Heat Exchangers with Perforations 1 Ganapathi Harish, 2 C.Mahesh, 3 K.Siva Krishna 1 M.Tech in Thermal Engineering, Mechanical Department, V.R Siddhartha Engineering

More information

Research Article. Kaustubh G. Kulkarni * and Mandar M. Lele. Abstract

Research Article. Kaustubh G. Kulkarni * and Mandar M. Lele. Abstract International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2017 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Enhancement

More information

Experimental Investigation of Heat Transfer Enhancement by Using Clockwise and Counter -clockwise Corrugated Twisted Tape Inserts

Experimental Investigation of Heat Transfer Enhancement by Using Clockwise and Counter -clockwise Corrugated Twisted Tape Inserts Experimental Investigation of Heat Transfer Enhancement by Using Clockwise and Counter -clockwise Corrugated Twisted Tape Inserts K.G.KULKARNI Appearing in ME ( HEAT POWER), PES s Modern College Of Engineering

More information

Australian Journal of Basic and Applied Sciences. Heat transfer enhancement of laminar flow in a circular tube using Swirl / vortex generator

Australian Journal of Basic and Applied Sciences. Heat transfer enhancement of laminar flow in a circular tube using Swirl / vortex generator AENSI Journals Australian Journal of Basic and Applied Sciences ISSN:1991-8178 Journal home page: www.ajbasweb.com Heat transfer enhancement of laminar flow in a circular tube using Swirl / vortex generator

More information

Introduction to Heat and Mass Transfer

Introduction to Heat and Mass Transfer Introduction to Heat and Mass Transfer Week 16 Merry X mas! Happy New Year 2019! Final Exam When? Thursday, January 10th What time? 3:10-5 pm Where? 91203 What? Lecture materials from Week 1 to 16 (before

More information

THERMODYNAMIC PERFORMANCE EVALUATION FOR HELICAL PLATE HEAT EXCHANGER BASED ON SECOND LAW ANALYSIS

THERMODYNAMIC PERFORMANCE EVALUATION FOR HELICAL PLATE HEAT EXCHANGER BASED ON SECOND LAW ANALYSIS THE PUBLISHING HOUSE PROCEEDINGS OF THE ROMANIAN ACADEMY, Series A, OF THE ROMANIAN ACADEMY Special Issue/2018, pp. 237 242 THERMODYNAMIC PERFORMANCE EVALUATION FOR HELICAL PLATE HEAT EXCHANGER BASED ON

More information

International Journal of Advanced Engineering Research and Studies E-ISSN

International Journal of Advanced Engineering Research and Studies E-ISSN Research Paper ANALYSIS OF TWISTED TAPE WITH STRAIGHT WINGLETS TO IMPROVE THE THERMO-HYDRAULIC PERFORMANCE OF TUBE IN TUBE HEAT EXCHANGER Mr.S.D.Patil 1, Prof. A.M. Patil 2, Prof. Gutam S. Kamble 3 Address

More information

Heat Transfer Enhancement with Different Square Jagged Twisted Tapes and CuO Nano fluid

Heat Transfer Enhancement with Different Square Jagged Twisted Tapes and CuO Nano fluid Heat Transfer Enhancement with Different Square Jagged Twisted Tapes and CuO Nano fluid 1 Krishna S. Borate, 2 A.V. Gawandare, 3 P.M. Khanwalkar 1,2,3 Department of Mechanical Engineering, Sinhgad College

More information

Convective Heat Transfer and Thermal Performance in a Circular Tube Heat Exchanger Inserted with U-Shaped Baffle

Convective Heat Transfer and Thermal Performance in a Circular Tube Heat Exchanger Inserted with U-Shaped Baffle Journal of Mathematics and Statistics Original Research Paper Convective Heat Transfer and Thermal Performance in a Circular Tube Heat Exchanger Inserted with U-Shaped Baffle 1 Amnart Boonloi and 2 Withada

More information

Flow and Heat Transfer Profiles in a Square Channel with 45 V-Downstream Orifices

Flow and Heat Transfer Profiles in a Square Channel with 45 V-Downstream Orifices Journal of Mathematics and Statistics Original Research Paper Flow and Heat Transfer Profiles in a Square Channel with 45 V-Downstream Orifices 1 Withada Jedsadaratanachai and 2 Amnart Boonloi 1 Department

More information

Sami D. Salman, 1,2 Abdul Amir H. Kadhum, 1 Mohd S. Takriff, 1 and Abu Bakar Mohamad Introduction

Sami D. Salman, 1,2 Abdul Amir H. Kadhum, 1 Mohd S. Takriff, 1 and Abu Bakar Mohamad Introduction The Scientific World Journal Volume 213, Article ID 492762, 8 pages http://dx.doi.org/1.1155/213/492762 Research Article Numerical Investigation of Heat Transfer and Friction Factor Characteristics in

More information

ENHANCEMENT OF HEAT TRANSFER FOR AIR FLOW THROUGH A DUCT WITH VARIOUS RIBS

ENHANCEMENT OF HEAT TRANSFER FOR AIR FLOW THROUGH A DUCT WITH VARIOUS RIBS International Journal of Mechanical and Production Engineering Research and Development (IJMPERD) ISSN(P): 2249-6890; ISSN(E): 2249-8001 Vol. 5, Issue 5, Oct 2015, 71-80 TJPRC Pvt. Ltd. ENHANCEMENT OF

More information

HEAT TRANSFER ENHANCEMENT IN HEAT EXCHANGER USING TANGENTIAL INJECTOR TYPE SWIRL GENERATOR

HEAT TRANSFER ENHANCEMENT IN HEAT EXCHANGER USING TANGENTIAL INJECTOR TYPE SWIRL GENERATOR HEAT TRANSFER ENHANCEMENT IN HEAT EXCHANGER USING TANGENTIAL INJECTOR TYPE SWIRL GENERATOR Hanumant Jagdale Department of Mechanical Engineering, MIT, Aurangabad, India Subhash Lahane Department of Mechanical

More information

Chapter 11: Heat Exchangers. Dr Ali Jawarneh Department of Mechanical Engineering Hashemite University

Chapter 11: Heat Exchangers. Dr Ali Jawarneh Department of Mechanical Engineering Hashemite University Chapter 11: Heat Exchangers Dr Ali Jawarneh Department of Mechanical Engineering Hashemite University Objectives When you finish studying this chapter, you should be able to: Recognize numerous types of

More information

International Forum on Energy, Environment Science and Materials (IFEESM 2015)

International Forum on Energy, Environment Science and Materials (IFEESM 2015) International Forum on Energy, Environment Science and Materials (IFEESM 215) CFD Analysis of Heat Transfer and Flow sistance on Shell Side of the Spiral Elliptical Tube Heat Exchanger Sheng Yang1,a*,

More information

SSRG International Journal of Mechanical Engineering ( SSRG IJME ) Volume 2 Issue 5 May 2015

SSRG International Journal of Mechanical Engineering ( SSRG IJME ) Volume 2 Issue 5 May 2015 Heat Transfer Enhancement in a Tube using Elliptical-Cut Twisted Tape Inserts Pratik P. Ganorkar 1, R.M. Warkhedkar 2 1 Heat power Engineering, Department of Mechanical Engineering, Govt. collage of engineering

More information

Department of Mechanical Engineering, VTU, Basveshwar Engineering college, Bagalkot, Karnataka, India

Department of Mechanical Engineering, VTU, Basveshwar Engineering college, Bagalkot, Karnataka, India International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2016 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Optimization

More information

Numerical Heat Transfer Study of Turbulent Square Duct Flow through W-Type Turbulators

Numerical Heat Transfer Study of Turbulent Square Duct Flow through W-Type Turbulators search Article International Journal of Thermal Technologies E-ISSN 2277 4114 214 INPRESSCO, All Rights served Available at http://inpressco.com/category/ijtt/ merical Heat Transfer Study of Turbulent

More information

Australian Journal of Basic and Applied Sciences

Australian Journal of Basic and Applied Sciences AENSI Journals Australian Journal of Basic and Applied Sciences ISSN:1991-8178 Journal home page: www.ajbasweb.com Numerical investigation of Heat Transfer Enhancements in a Circular Tube with CuONanofluid

More information

Keywords: Spiral plate heat exchanger, Heat transfer, Nusselt number

Keywords: Spiral plate heat exchanger, Heat transfer, Nusselt number EXPERIMENTAL AND NUMERICAL STUDIES OF A SPIRAL PLATE HEAT EXCHANGER Dr.RAJAVEL RANGASAMY Professor and Head, Department of Mechanical Engineering Velammal Engineering College,Chennai -66,India Email:rajavelmech@gmail.com

More information

International Journal of Emerging Technologies in Engineering Research (IJETER)

International Journal of Emerging Technologies in Engineering Research (IJETER) CFD Analysis of Transfer and Friction Factor Characteristics of ZNO/Water through Circular Tube with Rectangular Helix Inserts With Different Thicknesses Amit Singh Bisht PG Scholar, Department of Mechanical

More information

NUMERICAL SIMULATION ON RECTANGULAR CONVERGENT AND DIVERGENT RIBBED CHANNELS

NUMERICAL SIMULATION ON RECTANGULAR CONVERGENT AND DIVERGENT RIBBED CHANNELS NUMERICAL SIMULATION ON RECTANGULAR CONVERGENT AND DIVERGENT RIBBED CHANNELS K. Sivakumar 1, E. Natarajan and N. Kulasekharan 3 1 Valliammai Engineering College, Chennai, India Institute of Energy Studies,

More information

CFD ANALYSIS OF TRIANGULAR ABSORBER TUBE OF A SOLAR FLAT PLATE COLLECTOR

CFD ANALYSIS OF TRIANGULAR ABSORBER TUBE OF A SOLAR FLAT PLATE COLLECTOR Int. J. Mech. Eng. & Rob. Res. 2013 Basavanna S and K S Shashishekar, 2013 Research Paper ISSN 2278 0149 www.imerr.com Vol. 2, No. 1, January 2013 2013 IJMERR. All Rights Reserved CFD ANALYSIS OF TRIANGULAR

More information

INTRODUCTION: Shell and tube heat exchangers are one of the most common equipment found in all plants. How it works?

INTRODUCTION: Shell and tube heat exchangers are one of the most common equipment found in all plants. How it works? HEAT EXCHANGERS 1 INTRODUCTION: Shell and tube heat exchangers are one of the most common equipment found in all plants How it works? 2 WHAT ARE THEY USED FOR? Classification according to service. Heat

More information

CFD Investigation of Heat Transfer and Flow Patterns in Tube Side Laminar Flow and the Potential for Enhancement

CFD Investigation of Heat Transfer and Flow Patterns in Tube Side Laminar Flow and the Potential for Enhancement A publication of CHEMICAL ENGINEERING TRANSACTIONS VOL. 35, 2013 Guest Editors: Petar Varbanov, Jiří Klemeš, Panos Seferlis, Athanasios I. Papadopoulos, Spyros Voutetakis Copyright 2013, AIDIC Servizi

More information

Fluid Flow and Heat Transfer Characteristics in Helical Tubes Cooperating with Spiral Corrugation

Fluid Flow and Heat Transfer Characteristics in Helical Tubes Cooperating with Spiral Corrugation Available online at www.sciencedirect.com Energy Procedia 17 (2012 ) 791 800 2012 International Conference on Future Electrical Power and Energy Systems Fluid Flow and Heat Transfer Characteristics in

More information

Heat Transfer Enhancement Using a Rotating Twisted Tape Insert

Heat Transfer Enhancement Using a Rotating Twisted Tape Insert Journal of Modern Science and Technology Vol. 3. No. 1. March 2015 Issue. Pp. 263 271 Heat Transfer Enhancement Using a Rotating Twisted Tape Insert Al Amin 1, Zunayed Mahmud 2, Nafis Bin Islam 2, Lutfor

More information

Comparative Analysis of Heat Transfer and Friction Characteristics in a Corrugated Tube

Comparative Analysis of Heat Transfer and Friction Characteristics in a Corrugated Tube International Journal of Current Engineering and Technology E-ISSN 2277 416, P-ISSN 2347 5161 216 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Comparative

More information

JJMIE Jordan Journal of Mechanical and Industrial Engineering

JJMIE Jordan Journal of Mechanical and Industrial Engineering JJMIE Jordan Journal of Mechanical and Industrial Engineering Volume Number, June.6 ISSN 995-6665 Pages 99-4 Computational Fluid Dynamics of Plate Fin and Circular Pin Fin Heat Sins Mohammad Saraireh *

More information

Numerical Investigation on Turbulent Forced Convection in Heating Channel Inserted with Discrete V-Shaped Baffles

Numerical Investigation on Turbulent Forced Convection in Heating Channel Inserted with Discrete V-Shaped Baffles Journal of Mathematics and Statistics Original Research Paper Numerical Investigation on Turbulent Forced Convection in Heating Channel Inserted with Discrete V-Shaped Baffles 1 Amnart Boonloi and 2 Withada

More information

CHAPTER 7 NUMERICAL MODELLING OF A SPIRAL HEAT EXCHANGER USING CFD TECHNIQUE

CHAPTER 7 NUMERICAL MODELLING OF A SPIRAL HEAT EXCHANGER USING CFD TECHNIQUE CHAPTER 7 NUMERICAL MODELLING OF A SPIRAL HEAT EXCHANGER USING CFD TECHNIQUE In this chapter, the governing equations for the proposed numerical model with discretisation methods are presented. Spiral

More information

Heat Transfer Analysis of a Helical Coil Heat Exchanger by using CFD Analysis

Heat Transfer Analysis of a Helical Coil Heat Exchanger by using CFD Analysis International Journal of Computational Science, Mathematics and Engineering Volume. 3, Issue. 5, 2016 ISSN-2349-8439 Heat Transfer Analysis of a Helical Coil Heat Exchanger by using CFD Analysis Dr. B.Jayachandraiah

More information

FLOW MALDISTRIBUTION IN A SIMPLIFIED PLATE HEAT EXCHANGER MODEL - A Numerical Study

FLOW MALDISTRIBUTION IN A SIMPLIFIED PLATE HEAT EXCHANGER MODEL - A Numerical Study FLOW MALDISTRIBUTION IN A SIMPLIFIED PLATE HEAT EXCHANGER MODEL - A Numerical Study Nityanand Pawar Mechanical Engineering, Sardar Patel College of Engineering, Mumbai, Maharashtra, India nitya.pawar@gmail.com

More information

Numerical analysis of fluid flow and heat transfer in 2D sinusoidal wavy channel

Numerical analysis of fluid flow and heat transfer in 2D sinusoidal wavy channel Numerical analysis of fluid flow and heat transfer in 2D sinusoidal wavy channel Arunanshu Chakravarty 1* 1 CTU in Prague, Faculty of Mechanical Engineering, Department of Process Engineering,Technická

More information

ENERGY PERFORMANCE IMPROVEMENT, FLOW BEHAVIOR AND HEAT TRANSFER INVESTIGATION IN A CIRCULAR TUBE WITH V-DOWNSTREAM DISCRETE BAFFLES

ENERGY PERFORMANCE IMPROVEMENT, FLOW BEHAVIOR AND HEAT TRANSFER INVESTIGATION IN A CIRCULAR TUBE WITH V-DOWNSTREAM DISCRETE BAFFLES Journal of Mathematics and Statistics 9 (4): 339-348, 2013 ISSN: 1549-3644 2013 doi:10.3844/jmssp.2013.339.348 Published Online 9 (4) 2013 (http://www.thescipub.com/jmss.toc) ENERGY PERFORMANCE IMPROVEMENT,

More information

NUMERICAL HEAT TRANSFER ENHANCEMENT IN SQUARE DUCT WITH INTERNAL RIB

NUMERICAL HEAT TRANSFER ENHANCEMENT IN SQUARE DUCT WITH INTERNAL RIB NUMERICAL HEAT TRANSFER ENHANCEMENT IN SQUARE DUCT WITH INTERNAL RIB University of Technology Department Mechanical engineering Baghdad, Iraq ABSTRACT - This paper presents numerical investigation of heat

More information

Laminar Forced Convection and Heat Transfer Characteristics in a Square Channel Equipped with V-Wavy Surface

Laminar Forced Convection and Heat Transfer Characteristics in a Square Channel Equipped with V-Wavy Surface Journal of Mathematics and Statistics Original Research Paper Laminar Forced Convection and Heat Transfer Characteristics in a Square Channel Equipped with V-Wavy Surface 1 Amnart Boonloi and 2 Withada

More information

EXPERIMENTAL AND NUMERICAL STUDIES OF A SPIRAL PLATE HEAT EXCHANGER

EXPERIMENTAL AND NUMERICAL STUDIES OF A SPIRAL PLATE HEAT EXCHANGER THERMAL SCIENCE: Year 2014, Vol. 18, No. 4, pp. 1355-1360 1355 EXPERIMENTAL AND NUMERICAL STUDIES OF A SPIRAL PLATE HEAT EXCHANGER by Rangasamy RAJAVEL Department of Mechanical Engineering, AMET University,

More information

Enhancement of Heat Transfer in Heat Exchanger using Punched and V-cut Twisted Tape Inserts

Enhancement of Heat Transfer in Heat Exchanger using Punched and V-cut Twisted Tape Inserts ISSN 2395-1621 Enhancement of Heat Transfer in Heat Exchanger using Punched and V-cut Twisted Tape Inserts #1 Imran Quazi, Prof. #2 V.R.Mohite, #3 Prof. J Bali 1 imranquazi1987@gmail.com 2 vrmohite@gmail.com

More information

Experimental and Numerical Investigation for Structural and Thermal Characteristics of Externally Finned Double Pipe Heat Exchanger

Experimental and Numerical Investigation for Structural and Thermal Characteristics of Externally Finned Double Pipe Heat Exchanger Experimental and Numerical Investigation for Structural and Thermal Characteristics of Externally Finned Double Pipe Heat Exchanger 1 Sameer H. Ameen, 2 Deyaa Mohammed N. Mahmood, 3 Laith Najim A. Alameer

More information

Experimental and Numerical Investigation of a Multi Louvered Plate Fin-and-Tube Heat Exchanger using Computational Fluid Dynamics

Experimental and Numerical Investigation of a Multi Louvered Plate Fin-and-Tube Heat Exchanger using Computational Fluid Dynamics Experimental and Numerical Investigation of a Multi ed Plate Fin-and-Tube Heat Exchanger using P Bharathidasan 1 K Mahadevan 2 1,2Department of Mechanical Engineering, Dhanalakshmi Srinivasan Institute

More information

Thermo-Hydraulic performance of Internal finned tube Automobile Radiator

Thermo-Hydraulic performance of Internal finned tube Automobile Radiator Thermo-Hydraulic performance of Internal finned tube Automobile Radiator Dr.Kailash Mohapatra 1, Deepiarani Swain 2 1 Department of Mechanical Engineering, Raajdhani Engineering College, Bhubaneswar, 751017,

More information

CFD Analysis of Forced Convection Flow and Heat Transfer in Semi-Circular Cross-Sectioned Micro-Channel

CFD Analysis of Forced Convection Flow and Heat Transfer in Semi-Circular Cross-Sectioned Micro-Channel CFD Analysis of Forced Convection Flow and Heat Transfer in Semi-Circular Cross-Sectioned Micro-Channel *1 Hüseyin Kaya, 2 Kamil Arslan 1 Bartın University, Mechanical Engineering Department, Bartın, Turkey

More information

International Journal of Scientific & Engineering Research, Volume 5, Issue 11, November ISSN

International Journal of Scientific & Engineering Research, Volume 5, Issue 11, November ISSN International Journal of Scientific & Engineering Research, Volume 5, Issue 11, November-2014 1226 NUMERICAL ANALYSIS OF TRIPLE TUBE HEAT EXCHANGER USING ANSYS Vishwa Mohan Behera1, D.H. Das2, Ayusman

More information

PERFORMANCE ANALYSIS OF PARABOLIC TROUGH COLLECTOR TUBE WITH INTERNAL INTERMITTENT FINS

PERFORMANCE ANALYSIS OF PARABOLIC TROUGH COLLECTOR TUBE WITH INTERNAL INTERMITTENT FINS PERFORMANCE ANALYSIS OF PARABOLIC TROUGH COLLECTOR TUBE WITH INTERNAL INTERMITTENT FINS Binoj K. George 1, Jacob Kuriakose 2 1Student, M. A. College of Engineering, Kothamangalam 2Asst. Prof, M. A. College

More information

Effect of V-Shape Twisted Jaw Turbulators on Thermal Performance of Tube heat exchanger: An Experimental Study

Effect of V-Shape Twisted Jaw Turbulators on Thermal Performance of Tube heat exchanger: An Experimental Study DOI: http://dx.doi.org/10.30684/etj.36.11a.4 Akram H. Abed Electro-Mechanical Eng. Dept., Baghdad, Iraq. moon.nassr@gmail.com Effect of V-Shape Twisted Jaw Turbulators on Thermal Performance of Tube heat

More information

The Effect of Solid and Perforated Pin Fin on the Heat Transfer Performance of Finned Tube Heat Exchanger

The Effect of Solid and Perforated Pin Fin on the Heat Transfer Performance of Finned Tube Heat Exchanger International Journal of Energy Engineering 2018, 8(1): 1-11 DOI: 10.5923/j.ijee.20180801.01 The Effect of Solid and Perforated Pin Fin on the Heat Transfer Performance of Finned Tube Heat Exchanger Nabil

More information

ANALYSIS OF DOUBLE PIPE HEAT EXCHANGER WITH HELICAL FINS

ANALYSIS OF DOUBLE PIPE HEAT EXCHANGER WITH HELICAL FINS ANALYSIS OF DOUBLE PIPE HEAT EXCHANGER WITH HELICAL FINS Bandu A.Mule 1, Prof.D.N.Hatkar 2,Prof.M.S.Bembde 3 1 ME student, Department of Mechanical Engineering, MGM s COE, Nanded, Maharashtra, India. 2

More information

LAMINAR FORCED CONVECTION HEAT TRANSFER IN HELICAL COILED TUBE HEAT EXCHANGERS

LAMINAR FORCED CONVECTION HEAT TRANSFER IN HELICAL COILED TUBE HEAT EXCHANGERS LAMINAR FORCED CONVECTION HEAT TRANSFER IN HELICAL COILED TUBE HEAT EXCHANGERS Hesam Mirgolbabaei ia, Hessam Taherian b a Khajenasir University of Technology, Department of Mechanical Engineering, Tehran,

More information

FLOW DISTRIBUTION ANALYSIS IN A HEAT EXCHANGER WITH DIFFERENT HEADER CONFIGURATIONS

FLOW DISTRIBUTION ANALYSIS IN A HEAT EXCHANGER WITH DIFFERENT HEADER CONFIGURATIONS FLOW DISTRIBUTION ANALYSIS IN A HEAT EXCHANGER WITH DIFFERENT HEADER CONFIGURATIONS M. M. Matheswaran 1, S. Karthikeyan 2 and N. Rajiv Kumar 2 1 Department of Mechanical Engineering, Jansons Institute

More information

INSTRUCTOR: PM DR MAZLAN ABDUL WAHID

INSTRUCTOR: PM DR MAZLAN ABDUL WAHID SMJ 4463: HEAT TRANSFER INSTRUCTOR: PM DR MAZLAN ABDUL WAHID http://www.fkm.utm.my/~mazlan TEXT: Introduction to Heat Transfer by Incropera, DeWitt, Bergman, Lavine 5 th Edition, John Wiley and Sons DR

More information

Numerical Analysis of a Helical Coiled Heat Exchanger using CFD

Numerical Analysis of a Helical Coiled Heat Exchanger using CFD International Journal of Thermal Technologies ISSN 2277-4114 213 INPRESSCO. All Rights Reserved. Available at http://inpressco.com/category/ijtt Research Article Numerical Analysis of a Helical Coiled

More information

Experimental Validation of Heat Transfer Enhancement in plate Heat Exchanger with Non Conventional Shapes of Rib

Experimental Validation of Heat Transfer Enhancement in plate Heat Exchanger with Non Conventional Shapes of Rib Experimental Validation of Heat Transfer Enhancement in plate Heat Exchanger with Non Conventional Shapes of Rib 1 Miss. Ashwini Vasant Thakare, 2 Dr. J. A. Hole 1 M.Tech Student of JSPM Narhe Technical

More information

Overall Heat Transfer Coefficient

Overall Heat Transfer Coefficient Overall Heat Transfer Coefficient A heat exchanger typically involves two flowing fluids separated by a solid wall. Heat is first transferred from the hot fluid to the wall by convection, through the wall

More information

CFD study for cross flow heat exchanger with integral finned tube

CFD study for cross flow heat exchanger with integral finned tube International Journal of Scientific and Research Publications, Volume 6, Issue 6, June 2016 668 CFD study for cross flow heat exchanger with integral finned tube Zena K. Kadhim *, Muna S. Kassim **, Adel

More information

INTERNATIONAL JOURNAL OF APPLIED ENGINEERING RESEARCH, DINDIGUL Volume 2, No 1, 2011

INTERNATIONAL JOURNAL OF APPLIED ENGINEERING RESEARCH, DINDIGUL Volume 2, No 1, 2011 Experimental and Numerical comparison between the performance of Helical cone coils and ordinary helical coils used as dehumidifier for humidification dehumidification in desalination units Abo Elazm M.M.

More information

Heat Augmentation Using Non-metallic Flow Divider Type Inserts in Forced Convection

Heat Augmentation Using Non-metallic Flow Divider Type Inserts in Forced Convection IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X PP. 62-67 www.iosrjournals.org Heat Augmentation Using Non-metallic Flow Divider Type Inserts in Forced

More information

Experimental and Numerical Analysis of Turbulent Flow Heat Transfer Enhancement in a Horizontal Circular Tube Using Mesh Inserts

Experimental and Numerical Analysis of Turbulent Flow Heat Transfer Enhancement in a Horizontal Circular Tube Using Mesh Inserts July 2010, Volume 4, No.7 (Serial No.32) Journal of Energy and Power Engineering, ISSN 1934-8975, USA Experimental and Numerical Analysis of Turbulent Flow Heat Transfer Enhancement in a Horizontal Circular

More information

Numerical Analysis of Fe 3 O 4 Nanofluid Flow in a Double Pipe U-Bend Heat Exchanger

Numerical Analysis of Fe 3 O 4 Nanofluid Flow in a Double Pipe U-Bend Heat Exchanger International Journal of Engineering Studies. ISSN 0975-6469 Volume 8, Number 2 (2016), pp. 211-224 Research India Publications http://www.ripublication.com Numerical Analysis of Fe 3 O 4 Nanofluid Flow

More information

Numerical Analysis of Helical Coil Heat Exchanger in the Light of Waste Heat Recovery Applications

Numerical Analysis of Helical Coil Heat Exchanger in the Light of Waste Heat Recovery Applications Numerical Analysis of Helical Coil Heat Exchanger in the Light of Waste Heat Recovery Applications Mukesh Sharma 1, Jagdeesh Saini 2 1 M-Tech Student, 2 Assistant Professor B M College of Technology, Indore,

More information

Field synergy analysis of six starts spiral corrugated tube under high Reynolds number

Field synergy analysis of six starts spiral corrugated tube under high Reynolds number Journal of Physics: Conference Series PAPER OPEN ACCESS Field synergy analysis of six starts spiral corrugated tube under high Reynolds number To cite this article: Jin-yuan Qian et al 2016 J. Phys.: Conf.

More information

Scientific Journal Impact Factor: (ISRA), Impact Factor: IJESRT

Scientific Journal Impact Factor: (ISRA), Impact Factor: IJESRT IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY ANALYSIS OF HELICAL BAFFLE HEAT EXCHANGER FOR OPTIMUM HELIX ANGLE THROUGH NUMERICAL SIMULATIONS Roktutpal Borah 1, R.K Chitharthan

More information

Analysis of the Cooling Design in Electrical Transformer

Analysis of the Cooling Design in Electrical Transformer Analysis of the Cooling Design in Electrical Transformer Joel de Almeida Mendes E-mail: joeldealmeidamendes@hotmail.com Abstract This work presents the application of a CFD code Fluent to simulate the

More information

NUMERICAL ANALYSIS TO OPTIMIZE THE HEAT TRANSFER RATE OF TUBE-IN-TUBE HELICAL COIL HEAT EXCHANGER

NUMERICAL ANALYSIS TO OPTIMIZE THE HEAT TRANSFER RATE OF TUBE-IN-TUBE HELICAL COIL HEAT EXCHANGER NUMERICAL ANALYSIS TO OPTIMIZE THE HEAT TRANSFER RATE OF TUBE-IN-TUBE HELICAL COIL HEAT EXCHANGER A REPORT SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF Master of Technology in

More information

In order to optimize the shell and coil heat exchanger design using the model presented in Chapter

In order to optimize the shell and coil heat exchanger design using the model presented in Chapter 1 CHAPTER FOUR The Detailed Model In order to optimize the shell and coil heat exchanger design using the model presented in Chapter 3, one would have to build several heat exchanger prototypes, and then

More information

EVALUATION OF THERMAL PERFORMANCE OF CONE SHAPED HELICAL COIL HEAT EXCHANGER BY USING CFD ANALYSIS

EVALUATION OF THERMAL PERFORMANCE OF CONE SHAPED HELICAL COIL HEAT EXCHANGER BY USING CFD ANALYSIS EVALUATION OF THERMAL PERFORMANCE OF CONE SHAPED HELICAL COIL HEAT EXCHANGER BY USING CFD ANALYSIS DR. B. JAYACHANDRAIAH Prof of M.E & Vice-Principal Sri Kalahasteeswara Institute of Technology (S.K.I.T),

More information

International Journal of Innovative Research in Science, Engineering and Technology

International Journal of Innovative Research in Science, Engineering and Technology ISSN(Online): 2319-8753 Heat Transfer Intensification in U-bend Double Pipe Heat Exchanger using Twisted Tape Inserts L.Sandeep Raj 1, K.Vijaya Kumar Reddy 2, A.Aruna Kumari 2 Assitant Professor, VNR Vignana

More information

FLUID FLOW AND HEAT TRANSFER INVESTIGATION OF PERFORATED HEAT SINK UNDER MIXED CONVECTION 1 Mr. Shardul R Kulkarni, 2 Prof.S.Y.

FLUID FLOW AND HEAT TRANSFER INVESTIGATION OF PERFORATED HEAT SINK UNDER MIXED CONVECTION 1 Mr. Shardul R Kulkarni, 2 Prof.S.Y. FLUID FLOW AND HEAT TRANSFER INVESTIGATION OF PERFORATED HEAT SINK UNDER MIXED CONVECTION 1 Mr. Shardul R Kulkarni, 2 Prof.S.Y.Bhosale 1 Research scholar, 2 Head of department & Asst professor Department

More information

Numerical Investigation of Effects of Ramification Length and Angle on Pressure Drop and Heat Transfer in a Ramified Microchannel

Numerical Investigation of Effects of Ramification Length and Angle on Pressure Drop and Heat Transfer in a Ramified Microchannel Journal of Applied Fluid Mechanics, Vol. 9, No. 2, pp. 767-772, 2016. Available online at www.jafmonline.net, ISSN 1735-3572, EISSN 1735-3645. Numerical Investigation of Effects of Ramification Length

More information

A REVIEW OF HEAT TRANSFER AND LAMINAR FLOW IN A MICROCHANNEL

A REVIEW OF HEAT TRANSFER AND LAMINAR FLOW IN A MICROCHANNEL A REVIEW OF HEAT TRANSFER AND LAMINAR FLOW IN A MICROCHANNEL Mohit Kumar 1, Rajesh kumar 2 1 Department of Mechanical Engineering, NIT Kurukshetra, India 2 Assistant Professor, Department of Mechanical

More information

Using Computational Fluid Dynamics And Analysis Of Microchannel Heat Sink

Using Computational Fluid Dynamics And Analysis Of Microchannel Heat Sink International Journal of Engineering Inventions e-issn: 2278-7461, p-issn: 2319-6491 Volume 4, Issue 12 [Aug. 2015] PP: 67-74 Using Computational Fluid Dynamics And Analysis Of Microchannel Heat Sink M.

More information

Analysis of Heat Transfer Enhancement in Spiral Plate Heat Exchanger

Analysis of Heat Transfer Enhancement in Spiral Plate Heat Exchanger Vol. 2, No. 4 Modern Applied Science Analysis of Heat Transfer Enhancement in Spiral Plate Heat Exchanger Dr. Kaliannan Saravanan Professor & Head, Department of Chemical Engineering Kongu Engineering

More information

COMPUTATIONAL FLUID DYNAMICS ANALYSIS ON HEAT TRANSFER AND FRICTION FACTOR CHARACTERISTICS OF A TURBULENT FLOW FOR INTERNALLY GROOVED TUBES

COMPUTATIONAL FLUID DYNAMICS ANALYSIS ON HEAT TRANSFER AND FRICTION FACTOR CHARACTERISTICS OF A TURBULENT FLOW FOR INTERNALLY GROOVED TUBES THERMAL SCIENCE: Year 2013, Vol. 17, No. 4, pp. 1125-1137 1125 COMPUTATIONAL FLUID DYNAMICS ANALYSIS ON HEAT TRANSFER AND FRICTION FACTOR CHARACTERISTICS OF A TURBULENT FLOW FOR INTERNALLY GROOVED TUBES

More information

CFD Analysis and Optimization of Heat Transfer in Double Pipe Heat Exchanger with Helical-Tap Inserts at Annulus of Inner Pipe

CFD Analysis and Optimization of Heat Transfer in Double Pipe Heat Exchanger with Helical-Tap Inserts at Annulus of Inner Pipe IOR Journal Mecanical and Civil Engineering (IOR-JMCE) e-in: 2278-1684,p-IN: 2320-334X, Volume 13, Issue 3 Ver. VII (May- Jun. 2016), PP 17-22 www.iosrjournals.org CFD Analysis and Optimization Heat Transfer

More information

Investigation of Heat Transfer on Smooth and Enhanced Tube in Heat Exchanger

Investigation of Heat Transfer on Smooth and Enhanced Tube in Heat Exchanger International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2015INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Investigation

More information

Heat Transfer Co-efficient and Effectiveness for Water Using Spiral Coil Heat Exchanger: A Comprehensive Study

Heat Transfer Co-efficient and Effectiveness for Water Using Spiral Coil Heat Exchanger: A Comprehensive Study Global Science and Technology Journal Vol. 1. No. 1. July 2013 Issue. Pp.12-22 Heat Transfer Co-efficient and Effectiveness for Water Using Spiral Coil Heat Exchanger: A Comprehensive Study M A. Hossain

More information

3D Numerical Study on Laminar Forced Convection in V-Baffled Square Channel

3D Numerical Study on Laminar Forced Convection in V-Baffled Square Channel American Journal of Applied Sciences 10 (10): 1287-1297, 2013 ISSN: 1546-9239 2013 Boonloi and Jedsadaratanachai, This open access article is distributed under a Creative Commons Attribution (CC-BY) 3.0

More information

Journal of Heat and Mass Transfer Research

Journal of Heat and Mass Transfer Research Journal of Heat and Mass Transfer Research 4 (016) 83-90 Journal of Heat and Mass Transfer Research Journal homepage: http://jhmtr.journals.semnan.ac.ir Effect of baffle on shell-and-tube heat exchanger

More information

HEAT TRANSFER CAPABILITY OF A THERMOSYPHON HEAT TRANSPORT DEVICE WITH EXPERIMENTAL AND CFD STUDIES

HEAT TRANSFER CAPABILITY OF A THERMOSYPHON HEAT TRANSPORT DEVICE WITH EXPERIMENTAL AND CFD STUDIES HEAT TRANSFER CAPABILITY OF A THERMOSYPHON HEAT TRANSPORT DEVICE WITH EXPERIMENTAL AND CFD STUDIES B.M. Lingade a*, Elizabeth Raju b, A Borgohain a, N.K. Maheshwari a, P.K.Vijayan a a Reactor Engineering

More information

FLOW AND HEAT TRANSFER ANALYSIS OF VARIOUS RIBS FOR FORCED CONVECTION HEAT TRANSFER

FLOW AND HEAT TRANSFER ANALYSIS OF VARIOUS RIBS FOR FORCED CONVECTION HEAT TRANSFER FLOW AND HEAT TRANSFER ANALYSIS OF VARIOUS RIBS FOR FORCED CONVECTION HEAT TRANSFER 1 Navanath.G.Ghodake, 2 Prof.MRC. Rao, 3 Dr. R. R. Arakerimath 1 ME heat power student, 2 professor, 3 Professor & Dean

More information

PERIODICALLY FULLY DEVELOPED LAMINAR FLOW AND HEAT TRANSFER IN A 2-D HORIZONTAL CHANNEL WITH STAGGERED FINS

PERIODICALLY FULLY DEVELOPED LAMINAR FLOW AND HEAT TRANSFER IN A 2-D HORIZONTAL CHANNEL WITH STAGGERED FINS THERMAL SCIENCE: Year 2017, Vol. 21, No. 6A, pp. 2443-2455 2443 PERIODICALLY FULLY DEVELOPED LAMINAR FLOW AND HEAT TRANSFER IN A 2-D HORIZONTAL CHANNEL WITH STAGGERED FINS by Oguz TURGUT a* and Kamil ARSLAN

More information

Thermal Analysis of Shell and Tube Heat Ex-Changer Using C and Ansys

Thermal Analysis of Shell and Tube Heat Ex-Changer Using C and Ansys Thermal Analysis of Shell and Tube Heat Ex-Changer Using C and Ansys A v.hari Haran,*, B g.ravindra Reddy and C b.sreehari a) PG Student Mechanical Engineering Department Siddharth Institute Of Engineering

More information

Experimental and Theoretical Investigation of Hydrodynamics Characteristics and Heat Transfer for Newtonian and Non-newtonian Fluids

Experimental and Theoretical Investigation of Hydrodynamics Characteristics and Heat Transfer for Newtonian and Non-newtonian Fluids International Journal of Energy Science and Engineering Vol. 2, No. 3, 2016, pp. 13-22 http://www.aiscience.org/journal/ijese ISSN: 2381-7267 (Print); ISSN: 2381-7275 (Online) Experimental and Theoretical

More information

Comparison of heat transfer characteristics of liquid coolants in forced convection cooling in a micro heat sink

Comparison of heat transfer characteristics of liquid coolants in forced convection cooling in a micro heat sink Nivesh Agrawal et al. / IJAIR ISSN: 78-7844 Comparison of heat transfer characteristics of liquid coolants in forced convection cooling in a micro heat sink Mr.Nivesh Agrawal #1 Mr.Mahesh Dewangan * #1

More information

Numerical Study of the Three-dimensional Flow in a Flat Plate Solar Collector with Baffles

Numerical Study of the Three-dimensional Flow in a Flat Plate Solar Collector with Baffles Numerical Study of the Three-dimensional Flow in a Flat Plate Solar Collector with Baffles M.A. AMRAOUI a, K. ALIANE b a. Department of Mechanical Engineering, Faculty of Technology, University of Tlemcen,

More information

SHELL SIDE NUMERICAL ANALYSIS OF A SHELL AND TUBE HEAT EXCHANGER CONSIDERING THE EFFECTS OF BAFFLE INCLINATION ANGLE ON FLUID FLOW

SHELL SIDE NUMERICAL ANALYSIS OF A SHELL AND TUBE HEAT EXCHANGER CONSIDERING THE EFFECTS OF BAFFLE INCLINATION ANGLE ON FLUID FLOW THERMAL SCIENCE: Year 2012, Vol. 16, No. 4, pp. 1165-1174 1165 SHELL SIDE NUMERICAL ANALYSIS OF A SHELL AND TUBE HEAT EXCHANGER CONSIDERING THE EFFECTS OF BAFFLE INCLINATION ANGLE ON FLUID FLOW by Rajagapal

More information

International Communications in Heat and Mass Transfer

International Communications in Heat and Mass Transfer International Communications in Heat and Mass Transfer 39 (12) 82 86 Contents lists available at SciVerse ScienceDirect International Communications in Heat and Mass Transfer journal homepage: www.elsevier.com/locate/ichmt

More information

Numerical Investigation on Air Side Performance of Fin and Tube Heat Exchnagers with Different Types of Fins

Numerical Investigation on Air Side Performance of Fin and Tube Heat Exchnagers with Different Types of Fins Numerical Investigation on Air Side Performance of Fin and Tube Heat Exchnagers with Different Types of Fins Pal Durgeshkumar K. 1, Sudhakar Umale 2 1 M.Tech student, Mechanical Enginering 2 Associate

More information

NUMERICAL INVESTIGATION OF COUNTER FLOW ISOSCELES RIGHT TRIANGULAR MICROCHANNEL HEAT EXCHANGER

NUMERICAL INVESTIGATION OF COUNTER FLOW ISOSCELES RIGHT TRIANGULAR MICROCHANNEL HEAT EXCHANGER International Journal of Mechanical Engineering and Technology IJMET) Volume 8, Issue 1, January 217, pp. 81 87, Article ID: IJMET_8_1_9 Available online at http://www.iaeme.com/ijmet/issues.asp?jtype=ijmet&vtype=8&itype=1

More information

Performance evaluation of heat transfer enhancement for internal flow based on exergy analysis. S.A. Abdel-Moneim and R.K. Ali*

Performance evaluation of heat transfer enhancement for internal flow based on exergy analysis. S.A. Abdel-Moneim and R.K. Ali* Int. J. Exergy, Vol. 4, No. 4, 2007 401 Performance evaluation of heat transfer enhancement for internal flow based on exergy analysis S.A. Abdel-Moneim and R.K. Ali* Faculty of Engineering (Shoubra),

More information

Forced Convection Heat Transfer Enhancement by Porous Pin Fins in Rectangular Channels

Forced Convection Heat Transfer Enhancement by Porous Pin Fins in Rectangular Channels Jian Yang Min Zeng Qiuwang Wang 1 e-mail: wangqw@mail.xjtu.edu.cn State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi an Jiaotong University, Xi an,

More information

CHAPTER 3 SHELL AND TUBE HEAT EXCHANGER

CHAPTER 3 SHELL AND TUBE HEAT EXCHANGER 20 CHAPTER 3 SHELL AND TUBE HEAT EXCHANGER 3.1 INTRODUCTION A Shell and Tube Heat Exchanger is usually used for higher pressure applications, which consists of a series of tubes, through which one of the

More information

C ONTENTS CHAPTER TWO HEAT CONDUCTION EQUATION 61 CHAPTER ONE BASICS OF HEAT TRANSFER 1 CHAPTER THREE STEADY HEAT CONDUCTION 127

C ONTENTS CHAPTER TWO HEAT CONDUCTION EQUATION 61 CHAPTER ONE BASICS OF HEAT TRANSFER 1 CHAPTER THREE STEADY HEAT CONDUCTION 127 C ONTENTS Preface xviii Nomenclature xxvi CHAPTER ONE BASICS OF HEAT TRANSFER 1 1-1 Thermodynamics and Heat Transfer 2 Application Areas of Heat Transfer 3 Historical Background 3 1-2 Engineering Heat

More information

Analysis of a Double Pipe Heat Exchanger Performance by Use of Porous Baffles and Nanofluids

Analysis of a Double Pipe Heat Exchanger Performance by Use of Porous Baffles and Nanofluids Analysis of a Double Pipe Heat Exchanger Performance by Use of Porous Baffles and Nanofluids N. Targui, H. Kahalerras Abstract The present work is a numerical simulation of nanofluids flow in a double

More information

PROBLEM and from Eq. 3.28, The convection coefficients can be estimated from appropriate correlations. Continued...

PROBLEM and from Eq. 3.28, The convection coefficients can be estimated from appropriate correlations. Continued... PROBLEM 11. KNOWN: Type-30 stainless tube with prescribed inner and outer diameters used in a cross-flow heat exchanger. Prescribed fouling factors and internal water flow conditions. FIND: (a) Overall

More information

PERFORMANCE SCREENING OF A LOUVERED FIN AND VORTEX GENERATOR COMBINATION

PERFORMANCE SCREENING OF A LOUVERED FIN AND VORTEX GENERATOR COMBINATION HEFAT2014 10 th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics 14 26 July 2014 Orlando, Florida PERFORMANCE SCREENING OF A LOUVERED FIN AND VORTEX GENERATOR COMBINATION Bernd

More information

Computational Fluid Dynamics of Parallel Flow Heat Exchanger

Computational Fluid Dynamics of Parallel Flow Heat Exchanger International Journal of Sciences: Basic and Applied Research (IJSBAR) ISSN 2307-4531 (Print & Online) http://gssrr.org/index.php?journal=journalofbasicandapplied ---------------------------------------------------------------------------------------------------------------------------

More information