engineering recuitment HPCL Junior Executive 2025 Mock Test Refrigeration and Air Conditioning Refrigeration Cycles and Devices
What is the idea behind replacing an expander with a throttle valve in vapour compression refrigeration system?
1
Because it considerably reduces the system weight
2
Because it improves the COP, as the condenser is small
3
Because the positive work in isentropic expansion of liquid is very small
4
Because it leads to significant cost reduction