The sensible heat factor during cooling and dehumidification process is given by (where h_{1}= Enthalpy of air entering the cooling coil, h_{2+}= Enthalpy of air leaving the cooling coil, and h_{A}= Enthalpy of air at the end of dehumidification process)

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)

Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)