Refrigeration and Air Conditioning A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of -23°C. The Carnot coefficient of performance of cycle will be 6 1.2 5 0.2 6 1.2 5 0.2 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process) (h2 - hA)/ (h1 - h2) (hA - h1)/ (h2 - h1) (hA - h2)/ (h1 - h2) (h1 - h2)/ (hA - h2) (h2 - hA)/ (h1 - h2) (hA - h1)/ (h2 - h1) (hA - h2)/ (h1 - h2) (h1 - h2)/ (hA - h2) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The specific humidity during dehumidification process Remains constant None of these Increases Decreases Remains constant None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The value of C.O.P in vapour compression cycle is usually Always less than unity Always more than unity Equal to unity Any one of the above Always less than unity Always more than unity Equal to unity Any one of the above ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about 5.12 1.25 1 2.15 5.12 1.25 1 2.15 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The higher temperature in vapour compression cycle occurs at Compressor discharge Evaporator Expansion valve Receiver Compressor discharge Evaporator Expansion valve Receiver ANSWER DOWNLOAD EXAMIANS APP
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