Studies on pumping power in terms of pressure drop and heat transfer characteristics of compact plate-fin heat exchangers—A review |
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Authors: | L Sheik Ismail R Velraj C Ranganayakulu |
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Affiliation: | aP.B No. 1718, Aeronautical Development Agency, Bangalore 560017, India;bCollege of Engineering, Guindy, Anna University, Chennai 6000025, India |
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Abstract: | Renewable energy sources like solar energy, wind energy, etc. are profusely available without any limitation. Heat exchanger is a device to transfer the energy from one fluid to other fluid for many applications in buildings, industries and automotives. The optimum design of heat exchanger for minimum pumping power (i.e., minimum pressure drop) and efficient heat transfer is a great challenge in terms of energy savings point of view. This review focuses on the research and developments of compact offset and wavy plate-fin heat exchangers. The review is summarized under three major sections. They are offset fin characteristics, wavy fin characteristics and non-uniformity of the inlet fluid flow. The various research aspects relating to internal single phase flow studied in offset and wavy fins by the researchers are compared and summarized. Further, the works done on the non-uniformity of this fluid flow at the inlet of the compact heat exchangers are addressed and the methods available to minimize these effects are compared. |
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Keywords: | Compact heat exchangers Offset fins Wavy fins Fluid flow non-uniformity Turbulence |
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