4.3. CONDUCTION THROUGH SOLIDS IN SERIES
4.3A. Plane Walls in Series
In the case where there is a multilayer wall of more than one material present, as shown in Fig. 4.3-1, we proceed as follows. The temperature profiles in the three materials A, B, and C are shown. Since the heat flow q must be the same in each layer, we can write Fourier's equation for each layer as
Equation 4.3-1
Figure 4.3-1. Heat flow through a multilayer wall.
Solving each equation for ΔT,
Equation 4.3-2
Adding the equations for T1 − T2, T2 − T3, and T3 − T4, the internal ...
Get Transport Processes and Separation Process Principles (Includes Unit Operations) Fourth Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
