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Cooling Load Factors: motor efficiency multi

kW18p5 poles4 enclosed to kW1p1 poles4 open

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.

Mechanical Engineeringfactor type: motor efficiency multi10 rowsPage 6 of 19
factor typeitem idfull load efficiency pct (%)motor kW (kW)motor typenum poles (dimensionless)
motor efficiency multikW18p5 poles4 enclosed93.618.5Enclosed4
motor efficiency multikW18p5 poles4 open93.618.5Open4
motor efficiency multikW18p5 poles6 enclosed9318.5Enclosed6
motor efficiency multikW18p5 poles6 open9318.5Open6
motor efficiency multikW18p5 poles8 enclosed90.218.5Enclosed8
motor efficiency multikW18p5 poles8 open9118.5Open8
motor efficiency multikW1p1 poles2 enclosed841.1Enclosed2
motor efficiency multikW1p1 poles2 open841.1Open2
motor efficiency multikW1p1 poles4 enclosed86.51.1Enclosed4
motor efficiency multikW1p1 poles4 open86.51.1Open4

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