Analysis Of Fluid Flow And Heat Transfer Characreistics in Sharp Edge Wavy Channels With Horizontal Pitch On Both EDGES

2 INTRODUCTION TO COMPACT HEAT EXCHANGER Enhancement of heat transfer surface has developed over the years and is the main focus in the heat exchanger industry. Enhanced surface yield higher heat transfer coefficient when compared to un-enhanced surfaces. A surface can basically be enhanced in two ways, either active enhancement which requires deployment of external power which is obviously high in operational and capital cost thus commercially unviable, and passive enhancement which involves adding extended surface (e.g. fins), or employing interrupted surface (e.g. corrugations). Compact heat exchanger can be classified in two ways, plate types or primary surface heat exchanger. The hydraulic diameters for most heat exchangers are very small and often located in the range of 1 mm to 10 mm. Some advantages are observed in compact heat exchangers compared to the traditional shell and tube heat exchanger, such as high thermo-hydraulic performance, small size and compact volume. These advantages make compact heat exchangers very attractive in various industrial applications. Compact heat exchanger has wide applications