The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is
Same
More
Less
More or less depending on ambient conditions
- Vapour compression refrigeration is somewhat like
- The coefficient of performance of Heat Pump is always __________ one.
- In a vapour compression system, the condition of refrigerant is dry saturated vapour
- The central air conditioning system has ________ overall efficiency as compared to individual systems.
- The C.O.P of a refrigeration cycle with increase in evaporator temperature, keeping condenser temperature…
- An infinite parallel planes with emissivities e₁ and e₂, the interchange factor for radiation…
- Critical pressure of a liquid is the pressure
- The operating pressure for refrigerating units using R-12 as a refrigerant is
- During humidification process, dry bulb temperature
- The specific humidity during dehumidification process
- The difference between dry bulb temperature and dew point temperature, is called
- The lowest thermal diffusivity is of
- The dry bulb temperature lines, on the psychrometric chart are
- The humidity ratio or specific humidity is the mass of water vapour present in
- The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in…
- In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid
- The vapour pressure of refrigerant should be
- The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
- Refrigeration in aeroplanes usually employs the following refrigerant
- The leaks in a refrigeration system using Freon are detected by
- The reciprocating refrigerant compressors are very suitable for
- When the temperature of the surrounding is higher than the temperature of the body, then the heat loss…
- Degree of saturation or percentage humidity is
- In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)
- The ratio of heat extracted in the refrigerator to the work-done on the refrigerant is called
- A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine…
- Domestic refrigerator working on vapour compression cycle uses the following type of expansion device
- A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes…
- In a reversed Brayton cycle, the heat is absorbed by the air during
- In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature