Compact Heat Exchangers: Analysis, Design and Optimization using FEM and CFD Approach
7 Manufacturing and Qualification Testing of Compact Heat Exchangers
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The heat exchanger is assembled from a series of flat sheets/separating sheets and corrugated fins in a sandwich construction. Tube plates (i.e. parting sheets) provide the primary heat transfer surface. Parting sheets are positioned alternately with the layers of fins in the stack to provide containment between individual layers. These elements are built into a complete core and then vacuum brazed to form an integral unit. A section through a typical plate-fin heat exchanger core is shown in Figure 7.1. The heat transfer fins provide the secondary heating surface for heat transfer. Fin types, densities and heights can be varied...