Pipe Flow Design 1. Results Data
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1 Pipe Flow Design 1 Results Data
2 Color of Pipe: Velocity in m/sec Pipe Flow Expert Results Key f = flow in Modelling a 'Tee' fitting: The flow rate through the 'Tee' w ill be different for each flow path, therefore tw o fittings must be used (one on each flow path) to model the 'Tee' pressure loss. N8 8.0m P8, f =80.00 N9 8.0m 1.0m should be added to this pipe. pipe leaving 'Branch connection' therefore a 'Branch Tee' fitting should be added to this pipe. In this example the pipes sizes that connect to the tee are unequal. The fitting sizes used are matched to the pipe sizes as appropriate. N1 0.0m 2.0m N3 5.0m P1, f = P2, f= P3, f = P4, f = N2 0.0m N4 5.0m N6 5.0m P5, f=80.00 N10 5.0m N5 5.0m P9, f= FCV 80 P10, f = Example: Fixed Flow Pumping to 3 Tanks (Fixed flow rate pump) P6, f =80.00 P11, f=80.46 P7, f=80.00 N12 5.0m P12, f =80.46 N13 5.0m N11 5.0m P15, f =89.54 N7 5.0m N14 7.0m P13, f=80.46 P16, f=89.54 FCV 80 This system models a fixed flow rate pump transfering 250 of fluid from a supply container to 3 holding tanks. The flow to the top tank is controlled by a FCV set at 80. The centre tank has been isolated by closing pipe P14. The balance of the flow, 170 is forced along the path to the bottom tank. Click the Calculate button to solve the system. P14, f =80.46 P17, f =89.54 N17 7.0m N16 5.0m N15 7.0m 1.0m N18 7.0m 1.0m NOTE: When a fixed flow rate pump is used there must always be at least one path through the system where the flow rate is not controlled. If a Flow Control Valve was fitted to pipe P15 the total outlet flow would not equal the total pump flow rate and hence it would not be possible to find a balanced solution for the system. Pipe Flow Expert can be configured to display the flow rates, fluid velocity or total pressure drop on the drawing. View the results table to see all information, or use the mouse to hover over a pipe, a node or a component to display individual details in the hint pane. Designed using Pipe Flow Expert from Page 2
3 Fluid Data Zone Fluid Name Chemical Formula Temperature C Pressure Density kg/m³ Centistokes Centipoise Vapour Pressure State bar.a 1 Water H2 O Liquid Designed using Pipe Flow Expert from Page 3
4 Pump Data Pipe Id Pipe Name Pump Name Speed rpm Pref. Op From 4 P4 Pump Set Flow Rate Pref. Op To Flow In/Out Velocity m/sec Suction Pressure Discharge Pressure Pump Head (+) m.hd Fluid Pump NPSHr m.hd (absolute) Pump NPSHa m.hd (absolute) Pump Efficiency Percentage Pump Power Kilowatts Not known Not known Not Known Designed using Pipe Flow Expert from Page 4
5 Pipe Data Pipe Id Pipe Name and Notes Material Inner Diameter mm Roughness mm Length m Total K Mass Flow kg/min Flow Velocity m/sec Entry Pressure Exit Pressure 1 P1 2" Steel (ANSI) Sch P2 1-1/2" Steel (ANSI) Sch P3 2" PVC (flexible) P4 2" PVC (flexible) P5 1" Steel P6 1" Steel P7 1" Steel P8 1" Steel P9 1-1/4" Steel P10 1-1/4" Steel P11 1" Steel P12 1" Steel P13 1" Steel P14 1" Steel P15 1" Steel P16 1" Steel P17 1" Steel Designed using Pipe Flow Expert from Page 5
6 Node Data Node Id Node Type Node Elevation m Liquid Level m Surface Press. Press. at Node HGL at Node Demand In Demand Out Total Flow In Total Flow Out m.hd Fluid 1 Tank N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Tank N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Tank N N/A N/A Join Point N N/A N/A Join Point N N/A N/A Tank N N/A N/A Designed using Pipe Flow Expert from Page 6
7 Energy Data Pipe Id Pipe Name Pipe Friction Pipe Fittings Pipe Components Pipe Control Valves Pump Inefficiency SUBTOTAL Loss Pipe Items +Pump Discharge Pressure Change in Elevation TOTAL USED Sum of All Items Kilowatts Kilowatts Kilowatts Kilowatts Kilowatts Kilowatts Kilowatts Kilowatts Kilowatts 1 P N/A P N/A P N/A P Efficiency Not Specified 5 P N/A P N/A P N/A P N/A P N/A P N/A P N/A P N/A P N/A P N/A P N/A P N/A P N/A Designed using Pipe Flow Expert from Page 7
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Exam #2: Fluid Kinematics and Conservation Laws April 13, 2016, 7:00 p.m. 8:40 p.m. in CE 118
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Reference : McCabe, W.L. Smith J.C. & Harriett P., Unit Operations of Chemical
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