Mechanical Engineering :: Heat Transfer,Refrigeration and Air Conditioning
-
R-12 is generally preferred over R-22 in deep freezers since
-
The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed to the air, is called
-
If the energy radiated per second per sq. cm. of the surface for wave lengths lying between λ, and λ + dλ is represented by (eλ.dλ), then eλ is called
-
Dry bulb temperature is the temperature of air recorded by a thermometer, when
-
In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is
-
A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
-
The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The by-pass factor of the heating coil is
-
An infinite parallel planes with emissivities e1 and e2, the interchange factor for radiation from surface 1 to surface 2 is given by
Whatsapp
Facebook
is used for calculating relative humidity.
