10. An ammonia refrigerator operates between evaporating and condensing temperatures of – 16°C and 50°C respectively. The vapour is dry saturated at the compressor inlet, the compression process is isentropic and there is no undercooling of the condensate. Calculate : (i) The refrigerating effect per kg, (ii) The mass flow and power input per kW of refrigeration, and (iii) The C.O.P,nts [Ans. 1003.4 kJkg; 3.59 kg/h ; 0.338 kW ; 2.96]

10. An ammonia refrigerator operates between evaporating and condensing temperatures of – 16°C and 50°C respectively. The vapour is dry saturated at the compressor inlet, the compression process is isentropic and there is no undercooling of the condensate. Calculate : (i) The refrigerating effect per kg, (ii) The mass flow and power input per kW of refrigeration, and (iii) The C.O.P,nts [Ans. 1003.4 kJkg; 3.59 kg/h ; 0.338 kW ; 2.96]

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Description: 10. An ammonia refrigerator operates between evaporating and condensing temperatures of – 16°C and 50°Crespectively. The vapour is dry saturated at the compressor inlet, the compression process is isentropic andthere is no undercooling of the conden

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10. An ammonia refrigerator operates between evaporating and condensing temperatures of – 16°C and 50°C
respectively. The vapour is dry saturated at the compressor inlet, the compression process is isentropic and
there is no undercooling of the condensate.
Calculate :
(i) The refrigerating effect per kg,
(i) The mass flow and power input per kW of refrigeration, and
(iii) The C.O.P.,
[Ans. 1003.4 kJ/kg; 3.59 kg/h; 0.338 kW ; 2.96]
"(ref.)"

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