Refrigeration and Air Conditioning
Moisture should be removed from refrigerants to avoid

Freezing at the expansion valve
Restriction to refrigerant flow
Corrosion of steel plates
All of these

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Refrigeration and Air Conditioning
A one tonne refrigerating machine means that

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

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