J1V5 Internal Heat Loads
Internal heat loads refer to the amount of heat generated within a building or a specific space due to various internal sources. Table S45C3d provide assumptions for occupancy, lighting, cooking and appliances, which are then used against the applicable schedule.
Table S45C3d with internal heat loads for lighting, cooking, and appliances
Sole-occupancy unit area (excluding garage) (m2) | Occupancy (m2/person) | Daytime lighting power density (6:00 am to 6:00 pm) (W/m2) | Night-time lighting power density (6:00 pm to 6:00 am) (W/m2) | Cooking in kitchen zone only (W/m2 kitchen area) | Appliances (except oven) in whole sole-occupancy unit (W/m2) |
---|---|---|---|---|---|
β€ 100 | 41.2 | 4.0 | 4.0 | 36.2 | 4.38 |
> 100 to β€ 125 | 44.3 | 4.0 | 4.0 | 34.7 | 3.52 |
> 125 to β€ 150 | 47.8 | 4.0 | 4.0 | 28.9 | 2.99 |
> 150 to β€ 175 | 51.7 | 4.0 | 4.0 | 24.8 | 2.60 |
> 175 to β€ 200 | 55.8 | 4.0 | 4.0 | 25.3 | 2.26 |
> 200 to β€ 225 | 60.0 | 4.0 | 4.0 | 22.5 | 2.02 |
> 225 to β€ 250 | 64.4 | 4.0 | 4.0 | 20.2 | 1.84 |
> 250 to β€ 275 | 68.9 | 4.0 | 4.0 | 18.4 | 1.68 |
> 275 to β€ 300 | 73.3 | 4.0 | 4.0 | 16.9 | 1.55 |
> 300 to β€ 325 | 77.5 | 4.0 | 4.0 | 15.6 | 1.44 |
> 325 to β€ 350 | 81.6 | 4.0 | 4.0 | 14.5 | 1.34 |
> 350 to β€ 375 | 85.4 | 4.0 | 4.0 | 13.5 | 1.26 |
> 375 | 89.0 | 4.0 | 4.0 | 12.7 | 1.19 |
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