Cooling Load Factors: below grade floor
floor d0p9 w8 to floor d1p5 w9
ASHRAE cooling load calculation factors — people heat gain, lighting power density, luminaire heat fractions, motor efficiency, cooking/warewashing appliance heat gain, office/computer equipment heat gain, glazing optical properties, radiative/convective fractions, surface solar absorptance, wall and roof conduction time series (CTS), construction material layer properties, radiant time series (RTS), zone characteristics, and below-grade heat transfer coefficients. Source: ASHRAE Handbook Fundamentals 2021, Chapter 18.
| factor type | item id | depth below grade m (m) | floor width m (m) | u factor W per m2K (W/(m2·K)) |
|---|---|---|---|---|
| below grade floor | floor d0p9 w8 | 0.9 | 8 | 0.23 |
| below grade floor | floor d0p9 w9 | 0.9 | 9 | 0.215 |
| below grade floor | floor d1p2 w6 | 1.2 | 6 | 0.242 |
| below grade floor | floor d1p2 w7 | 1.2 | 7 | 0.224 |
| below grade floor | floor d1p2 w8 | 1.2 | 8 | 0.208 |
| below grade floor | floor d1p2 w9 | 1.2 | 9 | 0.195 |
| below grade floor | floor d1p5 w6 | 1.5 | 6 | 0.22 |
| below grade floor | floor d1p5 w7 | 1.5 | 7 | 0.204 |
| below grade floor | floor d1p5 w8 | 1.5 | 8 | 0.19 |
| below grade floor | floor d1p5 w9 | 1.5 | 9 | 0.179 |
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