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)Christophe.menezo@insa-lyon.fr

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

8RENAISSANCE : a CONCERTO project financed by the European Commission on the six framework program

RENAISSANCE - LYON -FRANCE

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