Cooling Load Factors: lighting power density
lpd 011 to lpd 020
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 011 | 6.5 | Auditorium |
| lighting power density | lpd 012 | 2.5 | Motion picture theater |
| lighting power density | lpd 013 | 9.9 | Nursery |
| lighting power density | lpd 014 | 2.5 | Gymnasium |
| lighting power density | lpd 015 | 13.5 | Performing arts theater |
| lighting power density | lpd 016 | 12.6 | Nurses' station |
| lighting power density | lpd 017 | 9 | All other lobbies |
| lighting power density | lpd 018 | 24.3 | Operating room |
| lighting power density | lpd 019 | 7.2 | Penitentiary |
| lighting power density | lpd 020 | 5.6 | Locker Room |
What else is in Engineering Database
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators