sample house

INITIAL DATA:

1. isolation:

Thermal conductivity factor of the wall U = 0,285 W/(m2K), thermal conductivity factor of the roofing U = 0,118 W/(m2K), thermal conductivity factor of the floor U = 0,447 W/(m2K)

Thermal conductivity factor of the wall U = 0,165 W/(m2K), thermal conductivity of the roofing U = 0,090 W/(m2K), thermal conductivity of the floor U = 0,235 W/(m2K)

Thermal conductivity factor of the wall U = 0,116 W/(m2K), thermal conductivity of the roofing U = 0,072 W/(m2K), thermal conductivity of the floor U = 0,159 W/(m2K)

Thermal conductivity factor of the wall U = 0,090 W/(m2K), thermal conductivity of the roofing U = 0,060 W/(m2K), thermal conductivity of the floor U = 0,120 W/(m2K)

Thermal conductivity factor of the wall U = 0,074 W/(m2K), thermal conductivity of the roofing U = 0,052 W/(m2K), thermal conductivity of the floor U = 0,097 W/(m2K)


2. windows:

2x conventional glazing Ug = 2,7 W/(m2K) (g = 0,77), metal frame without thermal separation Uf = 4,5 W/(m2K), frame width 0,14 m.

3x conventional glazing Ug = 2,0 W/(m2K) (g = 0,70), 45mm profile wooden frame Uf = 2,5 W/(m2K), frame width 0,14 m.

2x glazing (low-e + Ar) Ug = 1,2 W/(m2K) (g = 0,60), 68mm profile wooden frame Uf = 1,6 W/(m2K), frame width 0,14 m.

3x glazing (low-e + Ar) Ug = 0,54 W/(m2K) (g = 0,54), wooden frame without thermal separation (Pazen ENERsign) Uf = 0,66 W/(m2K), frame width 0,10 m.


3. thermal bridge free design:

Based on additional conductances in Minimum energy performance requirements.

Thermal bridge free design, no additional conductances are being considered in using external dimensions.

Detail calculation to a specific passive house solution – Floor perimeter: psi = -0,039 W/(mK), roof perimeter: psi = -0,041 W/(mK), wall-wall connection: psi = -0,065 W/(mK), inner wall-floor connection: psi = 0,014 W/(mK), inner wall-sealing connection : psi = -0,01 W/(mK), inner wall-external wall connesction: psi = 0,004 W/(mK), bulkhead-external wall connection: psi = 0,018 W/(mK)


4. airtightness:

Envelope airtightness at 50Pa n50 = 5,1/h

Envelope airtightness at 50Pa n50 = 2,1/h

Envelope airtightness at 50Pa n50 = 1,1/h

Envelope airtightness at 50Pa n50 = 0,4/h

Envelope airtightness at 50Pa n50 = 0,2/h


5. ventilation:

Ventilation system without heat recovery

Heat recovery efficiency 62%, electrical efficiency 0,36 Wh/m3

Heat recovery efficiency 72%, electrical efficiency 0,36 Wh/m3

Heat recovery efficiency 82%, electrical efficiency 0,36 Wh/m3

Heat recovery efficiency 92%, electrical efficiency 0,36 Wh/m3


6. solar panels:

no

yes (8,85 m2 plate collectors, angle 38 degrees)


7. orientation:

main facade towards S

main facade towards SW

main facade towards W

main facade towards NW

main facade towards N

main facade towards NE

main facade towards E

main facade towards SE


8. shading:

due to other buildings solar radiation decreases 75% on all windows

due to other buildings solar radiation decreases 50% on all windows

due to other buildings solar radiation decreases 25% on all windows

no effect of shading from other buildings


9. heating system:

Electrical heating (el. radiators + el. boiler)

Pellet

Gas

District heating