Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning

In aqua-ammonia and Lithium-bromide water absorption refrigeration systems, the refrigerants are respectively

As relative humidity decreases, the dew point temperature will be __________ wet bulb temperature.

The process of heat transfer from a hot body to a cold body, in a straight line, without affecting the intervening medium, is called radiation.

Reynolds number (R_N) is given by (where h = Film coefficient, l = Linear dimension, V = Velocity of fluid, k = Thermal conductivity, t = Temperature, ρ = Density of fluid, c_p = Specific heat at constant pressure, and μ = Coefficient of absolute viscosity)

The optimum effective temperature for human comfort is