Entropy of vaporization3/17/2024 ![]() ![]() ![]() Select a condensing unit that will satisfy the box load at an evap temp equal to the box temp minus the TD. The primary function of an EPR is to prevent the evaporator pressure from falling below a predetermined value or setting. Evaporator capacity is rated as Q=AxUxTD Heat transfer in watts = surface area (including fins) x conductance figure x log mean temperature difference external temp to refrigerant temp. Figure 23 described a R22 Refrigeration System with a -20 oF to -40 oF evaporator temperature with a two stage lubricated compressor, an oil still and return system. When the evaporator load increases, the I was wondering how I could calculate if a 'evaporative mister' type system could be used for such to reduce the ambient air temp to stop the house catching fire (dont care about cosmetic damage). ![]()
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