EXAMIANS
A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be
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In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor.
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Carbon dioxide is
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In a refrigerating machine, heat rejected is _________ heat absorbed.
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The C.O.P. of an absorption type refrigerator is given by (where T₁ = Temperature at which the working substance receives heat, T₂ = Temperature of cooling water, and T₃ = Evaporator temperature)
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A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg)
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The C.O.P. of a heat pump working on a reversed Carnot cycle is
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One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice
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The condition of refrigerant after passing through the condenser in a vapour compression system is
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During heating and dehumidification process, dry bulb temperature
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