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Cooling Load Factors: motor efficiency multi

kW75p0 poles2 enclosed to kW7p5 poles2 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 17 of 19
factor typeitem idfull load efficiency pct (%)motor kW (kW)motor typenum poles (dimensionless)
motor efficiency multikW75p0 poles2 enclosed94.175Enclosed2
motor efficiency multikW75p0 poles2 open93.675Open2
motor efficiency multikW75p0 poles4 enclosed95.475Enclosed4
motor efficiency multikW75p0 poles4 open95.475Open4
motor efficiency multikW75p0 poles6 enclosed9575Enclosed6
motor efficiency multikW75p0 poles6 open9575Open6
motor efficiency multikW75p0 poles8 enclosed93.675Enclosed8
motor efficiency multikW75p0 poles8 open94.175Open8
motor efficiency multikW7p5 poles2 enclosed90.27.5Enclosed2
motor efficiency multikW7p5 poles2 open89.57.5Open2

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