Figure 1: Conduction heat transfer.

This experiment is intended to support the Heat Transfer course. The student will perform use tem-perature and flow rate measurements to assess the performance of counter and parallel flow tube-in-tube heat exchangers. Background: Heat is that type of energy that is transferred from one place to another due to a temperature differ-ence between these two places. It always “flows” away from the higher temperature toward the lower one. There are three kinds or modes of heat transfer that may act singularly or in combination in a given situation. These three modes (conduction, convec-tion, and radiation are described below. Conduction is essentially the transfer of energy due to molecular motion, without any bulk motion of the material through which the heat is passing. Consider the flat plate of figure 1 below. If its faces are held at T1 and T2 (where T1 < T2), the molecules near the hotter left face be-come more active and energy is transmitted through the material by molecular collisions. For this one-dimensional problem, the steady state heat con