An air refrigerator working on Bell Coleman cycle takes air into the compressor at −5oC and compresses polytropically with PV1.35=C upto 5 bar and cools to 25oC at the same pressure. It is further expanded isentropically in the expander to 1 bar. The isentropic efficiency of expander is 90%. The net work required is ____ kJ/kg. (Correct upto three decimal place)54.265

An air refrigerator working on Bell Coleman cycle takes air into the c

1.	An air refrigerator working on Bell Coleman cycle takes air into the compressor at −5oC and compresses polytropically with PV1.35=C upto 5 bar and cools to 25oC at the same pressure. It is further expanded isentropically in the expander to 1 bar. The isentropic efficiency of expander is 90%. The net work required is ____ kJ/kg. (Correct upto three decimal place)54.265
Answer» An air refrigerator working on Bell Coleman cycle takes air into the compressor at $- 5^{o} C$ and compresses polytropically with $P V^{1.35} = C$ upto $5$ bar and cools to $25^{o} C$ at the same pressure. It is further expanded isentropically in the expander to $1$ bar. The isentropic efficiency of expander is $90$ %. The net work required is ____ $k J / k g$ . (Correct upto three decimal place) 54.265