Mechanical Engineering :: Refrigeration and Air Conditioning
- When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by
- The evaporator changes the low pressure liquid refrigerant from the expansion valve into
- The coefficient of performance is the ratio of the refrigerant effect to the
- In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is
- Pressure of water vapour is given by
- In vapour compression cycle using NH₃ as refrigerant, initial charge is filled at
- If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be
- Vertical lines on pressure-enthalpy chart show constant
- A vapour absorption refrigerator uses _________ as a refrigerant.
- Which of the following statement is correct for ammonia as a refrigerant?
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