renaissance lyon working group 3 num/exp
DESCRIPTION
RENAISSANCE LYON Working Group 3 Num/exp. Christophe Ménézo A/Prof & INSA Lyon-CETHIL (Thermal Science Centre of Lyon) [email protected]. Num/exp. comparison. Key points. Envelop Air tightness Thermal bridges Natural Ventilation rate Inertia. Huge impact on both. - PowerPoint PPT PresentationTRANSCRIPT
1RENAISSANCE : a CONCERTO project financed by the European Commission on the six framework program
RENAISSANCE - LYON -FRANCE
RENAISSANCE LYON
Working Group 3
Num/exp.
Christophe MénézoA/Prof & INSA Lyon-CETHIL
(Thermal Science Centre of Lyon)[email protected]
2RENAISSANCE : a CONCERTO project financed by the European Commission on the six framework program
RENAISSANCE - LYON -FRANCENum/exp. comparison
-Envelop Air tightness-Thermal bridges
-Natural Ventilation rate-Inertia
Key points
Huge impacton both
Might induce huge discrepancies
3RENAISSANCE : a CONCERTO project financed by the European Commission on the six framework program
RENAISSANCE - LYON -FRANCE
Impact de la perméabilité à l'air sur les besoins de chauffage pour des bâtiments performants
0
5
10
15
20
25
30
35
40
Besoins de chauffage [kWh/m?/an]
Réf. RT2005 Perméabilitéconformeau label
PassivHauss
Bâtiment à 50 kWh/m?/an Maison passive
Valeur pardéfaut RT2005 Réf. RT2005
Perméabilitéconformeau label
PassivHauss
Valeur pardéfaut RT2005
35,4
32,930,4
16,5
13,511,2
Envelop air tightness
Impact on heating needs
4RENAISSANCE : a CONCERTO project financed by the European Commission on the six framework program
RENAISSANCE - LYON -FRANCE
Envelop air & thermal leak
5RENAISSANCE : a CONCERTO project financed by the European Commission on the six framework program
RENAISSANCE - LYON -FRANCE
Measurement of air leakagetraditional method
Static method:ΔP (Pa)
measuredQ (m3/h)
measured
10 230
20 370
30 490
40 590
50 690
55 730
ΔP(10 – 55)
6RENAISSANCE : a CONCERTO project financed by the European Commission on the six framework program
RENAISSANCE - LYON -FRANCENatural ventilation
18
22
26
30
34
38
173
145217 289361 433505577 649721 7938659371009
Heures
T (°C)
Température d'Air(Existant)
Température d'Air(2 vol/h)
Température d'Air(3vol/h)
Température d'Air(4vol/h)
Ventilation rate influence
7RENAISSANCE : a CONCERTO project financed by the European Commission on the six framework program
RENAISSANCE - LYON -FRANCE
22
24
26
28
30
32
34
36
38
1 3 5 7 9 11 13 15 17 19 21 23 25
Tsud_existant
Tsud_HQE2_1vol/h
Tsud_HQE2_2vol/h
Natural ventilation
Day/night ventilation strategy (with inertia)
Temp.°C
Hours