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  1. bagofmilk

    Derivation of HVAC equation

    First of all, what is the name of this equation: ΔT = SPtotal / (2.7*ηf) This is used in HVAC applications to determine the total temperature rise across the supply fan. Where: ΔT = change in temperature (F) SP = Total Static Pressure (inH2O) ηf = fan efficiency (decimal form) And...

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