Assigning Robust Default Values in Building Performance Simulation Software for Improved Decision-Making in the Initial Stages of Building Design

Table 2

Simulation conditions.

value	Outer wall: 0.25 W/m^2K (concrete block and brickwork); Ground floor: 0.15 W/m^2K, roof: 0.15 W/m^2K; Window: 1.96 W/m^2K (double glazing)
Window	Double glazing, value: 1.96 W/m^2K, total solar transmission (SHGC): 0.70, direct solar transmission: 0.62, and light transmission: 0.74
Window shading	Blind with high reflectivity slats; Solar setpoint for cases 1, 5, 9, 13: 120 W/m^2; Maximum allowable glare index for the other cases: 22.0
Internal heat	Human: 0.1 person/m^2, 123 W/person, office equipment: 11.8 W/m^2
Lighting	3.3 W/m^2—100 lux; Target illuminance: 400 lx
Mechanical ventilation	10 L/s-person
Heating	Natural gas (carbon emission factor: 0.195 kg CO2/kWh); Heating system CoP: 0.830; Schedule: 5:00–19:00 in weekday: on, all other periods: on by set-back temp.; Setpoint temperature: 22°C, set-back temperature: 12°C
Cooling	Electricity from grid (carbon emission factor: 0.685 kg CO2/kWh); Cooling system CoP: 1.670; Schedule: 5:00–19:00 in weekday: on, all other periods: off; Setpoint temperature: 26°C