If h1 = inner film co-efficient and /h2 = outer film co-efficient, then the overall heat transfer co-efficient is

Question

Quizplus · Accepted Answer

The overall heat transfer coefficient is influenced by both the inner and outer film coefficients (h1 and h2) and typically falls between these two values. It is dependent on the resistances to heat transfer in the system, which include the resistances due to the inner and outer films as well as any resistance offered by the material between these films.

If H1 = Inner Film Co-Efficient and /H2 = Outer