Cooling Load Factors: lighting power density
lpd 021 to lpd 030
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 | lpd W per m2 (W/m2) | space type |
|---|---|---|---|
| lighting power density | lpd 021 | 7.3 | Patient room |
| lighting power density | lpd 022 | 9.8 | Physical therapy room |
| lighting power density | lpd 023 | 7.8 | Religious building |
| lighting power density | lpd 024 | 4.5 | Health care facility |
| lighting power density | lpd 025 | 13.5 | Recovery room |
| lighting power density | lpd 026 | 3.5 | Sports arena |
| lighting power density | lpd 027 | 6.3 | All other lounges/breakrooms |
| lighting power density | lpd 028 | 2.5 | All other audience seating areas |
| lighting power density | lpd 029 | 10.3 | Reading area |
| lighting power density | lpd 030 | 6.5 | Banking Activity Area |
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