HEATING PH Peak Load Calculation Meteonorm Gantioler Heat Peak Load Meteonorm-Model.odp Günther Gantioler Milan, 23 septembre 2016
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1 HEATING PH Peak Load Calculation Meteonorm Gantioler Heat Peak Load Meteonorm-Model.odp Günther Gantioler Milan, 23 septembre 2016
2 Günther Gantioler CONSULENZA CERTIFICAZIONI RICERCA - CORSI SOFTWARE Passivhouse Institute Italia direttore reparto scientifico Web: info@phi-italia.it Presidente Global Passive Building Council, Chicago/Bruxelles
3 Disclaimer Copyright e diritti d'uso Tutti i diritti per la pubblicazione e uso di questa presentazione sono di Günther Gantioler. I documenti (sia nella versione elettronica che cartacea) sono intesi soltanto per l'uso intero dei partecipanti del corso/convegno. La loro distribuzione a terzi o pubblicazione anche in parte richiede l'autorizzazione scritta da parte di Günther Gantioler. Disclaimer: I contenuti seguenti sono stati redatti con massima consepolvezza e accuratezza scientifica dall'autore. Comunque non si può assumere nessuna responsabilità rispetto a un uso o una interpretazione erronea da parte del lettore. Anche perchè i contenuti sono soggetti a una continua evoluzione scientifica e l'autore stetto cambia i contenuti rispondendo al progresso scientifico-tecnico e alle esperienze pratice della loro applicazione in campo reale. La responsabilità dell'applicazione dei contenuti è del lettore che dovrebbe controllarne il livello di aggiornamento e se per il caso concreto siano applicabili. L'autore respinge in tale senso ogni responsabilità e invita i lettori a comunicare errori riscontrati. Günther Gantioler Oberdorf 11, Barbiano (BZ) Autore: Günther Gantioler
4 Program Introduction ISO Time Constant Calculation Tool Meteonorm Fonte: PHIita C.0 page 4 06/13 Autore: Günther Gantioler
5 Introduction
6 PHPP thermal mass Summer page Spec.Cap=60+24 nmassive sides Fonte: PHIita C.0 page 6 06/16
7 PHPP thermal mass Summer page Fonte: PHI Darmstadt C.0 page 7 06/16
8 PHPP thermal mass Summer page Fonte: PHI Darmstadt C.0 page 8 06/16
9 WUFI Passive static model Fonte: PHIita C.0 page 9 06/16
10 PHPP thermal mass Summer page Effect on Heating need Sensible Cooling need (PHPP 7, but not in 8,9) Cooling peak load NOT Heating peak load Fonte: PHIita C.0 page 10 06/16
11 Inertial effect of thermal mass In PHPP for heating peak load hidden in climate data. The temperature difference is reduced for thermal mass effects. Calculation method PHI-Darmstadt: - design of a standard appropriate PH house for the specific climate zone (subjective) - Dynamic simulation with Dynbil (software of PHI-Darmstadt) - coldest days: delay of internal conditions at minimal comfort temperature - cuttings of peaks for this delay (which climate data?) Security margin (subjective) Fonte: PHIita C.0 page 11 06/16
12 Old method with dynamic simulation Fonte: Arch. Bernhard Oberrauch C.0 page 12 06/16
13 Standard time constant calculation? Goal: find a standardized model of time constant calculation The basic standard of PHPP is ISO monthly model Find a standardized climate correction model (3 different models in Meteonorm) Field test for 2 year (see document of Bernhard Oberrauch) Fonte: PHIita C.0 page 13 06/16
14 HEATING Peak Load Calculation ISO 13790
15 ISO 13790:2008 Fonte: ISO 13790:2008 C.0 page 15 06/16
16 ISO 13790:2008 art Fonte: ISO 13790:2008 C.0 page 16 06/16
17 ISO 13790:2008 art Fonte: ISO 13790:2008 C.0 page 17 06/16
18 ISO 13790:2008 art Fonte: ISO 13790:2008 C.0 page 18 06/16
19 ISO 13790:2008 art Fonte: ISO 13790:2008 C.0 page 19 06/16
20 ISO 13790:2008 art Fonte: ISO 13790:2008 C.0 page 20 06/16
21 PHI-ITA time constant calculation tool
22 Living room (most important room) Living room 6 * 4 m Element height 2,60 m Area HT Floor Ceiling External wall Windows Internal wall Internal door 24,00 m² 4,3 W/K 24,00 m² 0,0 W/K 22,04 m² 6,6 W/K 3,96 m² 5,9 W/K 23,90 m² 0,0 W/K 2,10 m² 0,7 W/K Sum: 17,6 W/K Time constant t [h]: Time constant t for Meteonorm [d]: Parameter a for montly calculation (PHPP): Paramerer a for seasonal calculation (WaVE): Total area 100,00 m² HV: H: 10,6 W/K 28 W/K C example3 Very light 294,7 Wh/K 90,0 Wh/K 82,7 Wh/K 16,5 Wh/K 368,5 Wh/K 29,4 Wh/K 881,6 Wh/K 31 h 1,3 d 3,1 1,8 C example1 Medium 988,0 Wh/K 910,8 Wh/K 558,3 Wh/K 16,5 Wh/K 605,4 Wh/K 29,4 Wh/K 3.108,3 Wh/K 110 h 4,6 d 8,3 4,5 C example2 Very heavy 988,0 Wh/K 1.321,2 Wh/K 1.151,0 Wh/K 16,5 Wh/K 1.248,1 Wh/K 29,4 Wh/K 4.754,1 Wh/K 168 h 7,0 d 12,2 6,4 8,82 31,08 47,54 Cm QG PH Caceffo kwh/a h PHPP 0,89 0,99 1,00 QL PH Caceffo kwh/a 0,64 h WaVE 0,78 0,95 0,98 g Fonte: PHI Italia a0 1,0 0,8 t C.0 page 22 06/16
23 Light/heavy constructions (first 10 cm) External wall Medium Heavy Light Construction layers Plaster (1,5 cm); light brick (8,5 cm) Full brick (10 cm) Gipsyboard (1,5 cm) air or insulation Cx 25,3 Wh/m²K 52,2 Wh/m²K 3,8 Wh/m²K Floor Medium Heavy Light Construction layers Tiles (1,5 cm) and screed (6 cm) Tiles (1,5 cm) and screed (6 cm) Wooden floor (1,5 cm) and plaster fiber board (2 cm) Cx 41,2 Wh/m²K 41,2 Wh/m²K 12,3 Wh/m²K Ceiling Medium Heavy Light Construction layers Plaster (1 cm); light brick (9 cm) Plaster (1 cm); reinforced concrete (9 cm) Gipsyboard (1,5 cm) air or insulation Cx 38,0 Wh/m²K 55,1 Wh/m²K 3,8 Wh/m²K Internal wall Medium Heavy Light Construction layers Plaster (1,5 cm); light brick (8,5 cm) Full brick (10 cm) Gipsyboard (1,5 cm); X-Lam-Wood (4 cm; only the half) Cx 25,3 Wh/m²K 52,2 Wh/m²K 15,4 Wh/m²K Fonte: PHI Italia C.0 page 23 06/16
24 Meteonorm
25 Example Gaiole in Chianti Name = Gaiole in Chianti Latitude [ ] = 43,466 Longitude [ ] = 11,440 Height [m] = 365 Meteostation of Ministry of agricolture Tuscany Fonte: PHI Italia C.0 page 25 11/16
26 Meteonorm 7.1 Data Advanced settings Output format specific settings WUFI Passive/WaVE Fonte: PHI Italia C.0 page 26 06/16
27 Meteonorm 7.1 Output Format: WUFI Passive/WaVE Fonte: PHI Italia C.0 page 27 06/16
28 Meteonorm 7.1 mon-txt Gaiole Standard case Cooling Load Heating Load Worst case Fonte: PHI Italia C.0 page 28 06/16
29 Meteonorm 7.1 mon-txt Gaiole For airheating/-cooling systems PH-Italy considers the worst case data. Worst case is the combined coldest winter and hottest summer. Heating Load 2 columns Fonte: PHI Italia Cooling Load 1 column C.0 page 29 06/16
30 Meteonorm 7.1 mon-txt Gaiole Cooling load: simply the warmest days of the choosen period in the example 2 days from 18 august to 19 august Heating Load 2 columns Cooling Load 1 column Heating Load 1: the coldest days with high solar radiation during choosen time constant in the example 4 days from 12 january to 15 january Heating Load 2: cloudy days with higher temperature and low solar radiation in period in the example 4 days from 12 january to 15 january Fonte: PHI Italia C.0 page 30 06/16
31 WUFI Passive climate data export Fonte: PHI Italia C.0 page 31 06/16
32 Combining data Copy original WAC-file Rename in *.csv Open with LibreCalc Open exportet WUFI Passive data with LibreCalc Overwrite Solar radiation with data form WAC-file Correct the date/time format Fonte: PHI Italia C.0 page 32 06/16
33 Analysing Actually there is no hourly WC-File Example from now on uses the Standard Climate Standard conditions: cold, cloudy winter and sunny, hot summer WUFIpro Gaiole in Chianti Temperature outdoor North East South West Global Time constant Starting day C, W/m2 0,0 C 16 W/m² 44 W/m² 125 W/m² 45 W/m² 67 W/m² 4d w1: 12/1 C, W/m2 4,6 C 11 W/m² 20 W/m² 54 W/m² 26 W/m² 39 W/m² 4d w2: 19/12 C, W/m2 27,6 C 57 W/m² 171 W/m² 143 W/m² 157 W/m² 296 W/m² 2d s: 21/7 For Winter1 we are looking on 12 january For Winter2 we are looking on 19 december For Summer we are looking on 21 july Fonte: PHI Italia C.0 page 33 06/16
34 Analysing Fonte: PHI Italia For Winter1 we are looking on 12 january For Winter2 we are looking on 19 december For Summer we are looking on 21 july C.0 page 34 06/16
35 Analysing W1 cold day, high solar radiation For Winter1 we are looking on 12 january 4 days Fonte: PHI Italia C.0 page 35 06/16
36 Analysing W2 cloudy, low solar radiation For Winter1 we are looking on 19 december 4 days Fonte: PHI Italia C.0 page 36 06/16
37 Analysing W2 cloudy, low solar radiation For Summer we are looking on 21 july 2 days Fonte: PHI Italia C.0 page 37 06/16
38 On site testing
39 Real climate Firenze (Tuscany) Fonte: PHI Italia C.0 page 39 06/16 Author: Bernhard Oberrauch
40 Real climate Bolzano (Alps) Fonte: PHI Italia C.0 page 40 06/16 Author: Bernhard Oberrauch
41 Real climate Modena (Po plain) Fonte: PHI Italia C.0 page 41 06/16 Author: Bernhard Oberrauch
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