Calculation result
Cluj Demonstration House
Cluj-Napoca, municipality - Cluj · 160 m² · climate station Cluj-Napoca
Class
B
181.4 kWh/m²/year
Final energy by use
Annual values calculated from useful demand and system performance.
Building envelope
Transmission contributions in W/K.
External walls
70.6 W/K
43.7 %
Windows
32.4 W/K
20.1 %
Ground floor
28.8 W/K
17.8 %
Roof
22.1 W/K
13.7 %
External door
5.4 W/K
3.4 %
Energy carriers
Final-energy aggregation by carrier.
Monthly profile
Useful heating and cooling demand.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Methodology details
- Htr
- 161.38 W/K
- Hve
- 73.44 W/K
- Useful heating demand
- 17 881.1 kWh/year
- Useful cooling demand
- 1 423.9 kWh/year
- Methodology
- lacurent-commercial-v2.0
- Transmission heat transfer uses the validated MC001 direct form Htr = sum(U*A) + sum(psi*L) for the commercial v2 scope.
- Ventilation heat transfer uses the MC001 helper form Hve = 0.34 * airflow_m3h * recovery_factor with airflow derived from ACH * heated volume.
- Monthly heating and cooling use a transparent balance over monthly mean exterior temperatures, envelope/ventilation loss, internal gains and optional explicit solar gains.
- DHW demand uses an explicit commercial-methodology value of 50 L/person/day at 60 C and 0.05814 kWh/L for a 10 C to 60 C water temperature rise.
- Reference-building values are explicit methodology parameters, then calculated through the same engine as the evaluated building.
- This commercial report is not a legally issued Romanian CPE.