Question

1.
EXERCISES
An ammonia refrigerator works between -6.7°C and 26.7° C, the vapour being dry at the end
isentropic compression. There is no under-cooling of liquid ammonia and the liquid is
through a throttle valve after leaving the condenser. Sketch the cycle on the T-s and p-h diagram
calculate the refrigeration effect per kg of ammonia and the theoretical coefficient of performance
the unit with the help of the properties given below:
expand
Temperature, °C
Enthalpy, kJ/kg
Entropy, kJ/kg K
Liquid
Vapour
Liquid
Vapour
-6.7
152.18
1437.03
0.6016
5.4308
26.7
307.18
1467.03
1.1515
5.0203
[Ans. 1028.3 kJ/kg : 2
An ammonia refrigerator produces 30
norge​

Answer 1

Answer:

30 digree celcious bro..........

Answer 2

Answer:

Step-by-step explanation: