Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid

After passing through the expansion or throttle valve
Before passing through the condenser
After passing through the condenser
Before entering the expansion valve

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Refrigeration and Air Conditioning
A one tonne refrigerating machine means that

One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min
One tonne is the total mass of machine
One tonne of water can be converted into ice
One tonne refrigerant is used

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