Abstract
The surface selection method is the performance evaluation criteria (PEC) to reach an optimum surface selection. The method is not limited to surfaces found in the literature, but will accommodate any type of the heat transfer surfaces. The capability is demonstrated by the surface of selection of gas /gas plate-fin heat exchanger. A general methodology for plate-fin heat exchangers surface selection has been shown and applied for a specific illustration problems. The objective of the present work can be summarized as the selection of the plate-fin surfaces (high performance surfaces) depending on the qualitative and quantitive consideration for low Re.