Question

the concept of overall coefficient of heat transfer is used in heat transfer problems of

Answer 1

temperature of the surrounding fluid, K. : temperature of the solid surface, K. ... It is used in calculating the heat transfer, typically by convection or phase transition between a fluid and a solid. The heat transfer coefficient has SI units in watts per squared meter kelvin: W/(m2K).

Answer 2

Overall heat transfer coefficient is a measure of the overall ability of a series of conductive and convective barriers to transfer heat. It is commonly applied to the calculation of heat transfer in heat exchangers, but can be applied equally well to other problems.