Cooling Load Factors: lighting power density
lpd 071 to lpd 080
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 071 | 7.5 | Chapel (used primarily by residents) |
| lighting power density | lpd 072 | 5.6 | Emergency Vehicle Garage |
| lighting power density | lpd 073 | 19 | Recreation room/common living |
| lighting power density | lpd 074 | 11.7 | Food Preparation Area |
| lighting power density | lpd 075 | 4.4 | Guest Room |
| lighting power density | lpd 076 | 4.2 | Baggage/carousel area |
| lighting power density | lpd 077 | 2.7 | Airport concourse |
| lighting power density | lpd 078 | 11.9 | In or as classroom |
| lighting power density | lpd 079 | 5.5 | Ticket counter |
| lighting power density | lpd 080 | 14.3 | All other laboratories |
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