The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called
Sub-cooling or under-cooling
Super-cooling
Normal cooling
None of these
- The central air conditioning system has ________ overall efficiency as compared to individual systems.
- The centrifugal compressors are generally used for refrigerants that require
- The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature,…
- The capillary tube, as an expansion device, is used in
- The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C.…
- In a pressure enthalpy chart, the space to the left of the saturated liquid line represents
- Bell Coleman cycle is a
- In S.J. unit, one ton of refrigeration is equal to
- Chaperon equation is applicable for registration at
- The specific humidity during heating and humidification process.
- The formation of frost on cooling coils in a refrigerator
- Which of the following statement is correct?
- For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference…
- The condition of refrigerant as it leaves the compressor in a vapour compression system is
- In aqua ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water…
- The heat rejection factor (HRF) is given by
- The leaks in a refrigeration system using Freon are detected by
- Moisture should be removed from refrigerants to avoid
- An important characteristic of absorption system of refrigeration is
- Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the…
- The vapour compression refrigerator employs the following cycle
- During sensible cooling,
- Choose the correct statement
- Superheating in a refrigeration cycle
- The COP of a vapour compression plant in comparison to vapour absorption plant is
- A Bell Coleman refrigerator working on dense air system as compared to open air system, for the same…
- The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
- The undesirable property of a refrigerant is
- The pressure at the inlet of a refrigerant compressor is called
- Aqua ammonia is used as refrigerant in the following type of refrigeration system