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A 1 hp motor is used for running a dual cylinder reciprocating compressor of a refrigeration system based on $\mathrm{R}-134$ a refrigerant having $185 \mathrm{~kJ} \mathrm{~kg}^{-1}$ cooling capacity. COP of the system is 4.2 and overall efficiency of the compressor is $80 \%$. Specific volume of the refrigerant vapour at suction temperature is $0.15 \mathrm{~m}^{3} \mathrm{~kg}^{-1}$. The compressor with bore diameters of $40 \mathrm{~mm}$ each runs at $1440 \mathrm{rpm}$.The mass flow rate of the refrigerant in $\mathrm{kg} \min ^{-1}$ is
(A) 1.634
(B) 1.090
(C) 0.813
(D) 0.240


Question ID - 157401 | Toppr Answer

A 1 hp motor is used for running a dual cylinder reciprocating compressor of a refrigeration system based on $\mathrm{R}-134$ a refrigerant having $185 \mathrm{~kJ} \mathrm{~kg}^{-1}$ cooling capacity. COP of the system is 4.2 and overall efficiency of the compressor is $80 \%$. Specific volume of the refrigerant vapour at suction temperature is $0.15 \mathrm{~m}^{3} \mathrm{~kg}^{-1}$. The compressor with bore diameters of $40 \mathrm{~mm}$ each runs at $1440 \mathrm{rpm}$.The mass flow rate of the refrigerant in $\mathrm{kg} \min ^{-1}$ is
(A) 1.634
(B) 1.090
(C) 0.813
(D) 0.240

1 Answer - 5876 Votes

3537

Answer Key : (C) -

(C) 0.813



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