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Net Refrigeration Effect

The quantity of heat absorbed from refrigerated space

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Net Refrigeration Effect is

"the quantity of heat that each pound of refrigerant absorbs from the refrigerated space to produce useful cooling"

Net Refrigeration Effect can be calculated as

NRE = hl - he                                           (1)


NRE = Net Refrigeration Effect (Btu/lb, J/kg)

hl = enthalpy of vapor leaving evaporator (Btu/lb, J/kg)

he = enthalpy of vapor entering evaporator (Btu/lb, J/kg)

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