The thermostatic expansion valve is used in __________ type of evaporators.

More Questions from Heat Transfer, Refrigeration and Air Conditioning

• Two long parallel surfaces each of emissivity 0.7 are maintained at different temperatures and accordingly have radiation heat exchange between them. It is desired to reduce 75% of the radiant heat transfer by inserting thin parallel shields of emissivity 1 on both sides. The number of shields should be
• According to Newton's law of cooling, the heat transfer from a hot body to a cold body is
• The ratio of emissive power of a body to the emissive power of a perfectly black body is called emissivity.
• The index which corelates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as
• If a gas is to be liquified, its temperature must be
• Thermal conductivity of a material may be defined as the
• When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by
• A one tonne refrigerating machine means that
• The cooling of air, without any change in its specific humidity, is known as sensible cooling.
• The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called

Discussion & Comments