A regenerative Brayton refrigeration working between pressure limit of 1 and 3 bar. The temperature and pressure of air at inlet of compressor is 270 K and 1 bar respectively. Compressed air enters regenerative heat exchanger at temperature of 310 K and exit at a temperature of 280 K. The refrigeration effect is 30 kJ/kg. The effectiveness of heat exchanger is ____.Assume compression and expansion are isentropic(Take γ for air = 1.4 and cp for air = 1.005 kJ/kgK)(Correct upto 3 decimal place)0.397

A regenerative Brayton refrigeration working between pressure limit of

1.	A regenerative Brayton refrigeration working between pressure limit of 1 and 3 bar. The temperature and pressure of air at inlet of compressor is 270 K and 1 bar respectively. Compressed air enters regenerative heat exchanger at temperature of 310 K and exit at a temperature of 280 K. The refrigeration effect is 30 kJ/kg. The effectiveness of heat exchanger is ____.Assume compression and expansion are isentropic(Take γ for air = 1.4 and cp for air = 1.005 kJ/kgK)(Correct upto 3 decimal place)0.397
Answer» A regenerative Brayton refrigeration working between pressure limit of 1 and 3 bar. The temperature and pressure of air at inlet of compressor is 270 K and 1 bar respectively. Compressed air enters regenerative heat exchanger at temperature of 310 K and exit at a temperature of 280 K. The refrigeration effect is 30 kJ/kg. The effectiveness of heat exchanger is ____. Assume compression and expansion are isentropic (Take $γ$ for air = 1.4 and $c_{p}$ for air = 1.005 kJ/kgK) (Correct upto 3 decimal place) 0.397