Abstract
This paper presents the analysis of exergy according to second law of thermodynamics for a double concentric tube heat exchanger experimentally. For this purpose to study the heat exchange process between two fluid mediums separated by a solid partition for parallel flow arrangement, an experimental setup was fabricated as per designed considered to measured data. In this considered double concentric tube heat exchanger, hot water and cold water flowing through inner and outer tube respectively and heat exchange takes place from hot fluid medium to cold fluid medium. Here the wall tube conductive resistance is assumed as negligible. The investigation was performed for mass flow rate of cold water ranging from 0.0326 kg/s to 0.572 kg/s and mass flow rate of hot water ranging from 0.016 kg/s to 0.479 kg/s. The effects of various parameters such as rate of entropy generation, number of entropy generation, effectiveness of heat exchanger, and losses of exergy are observed by exergy analysis. The governing equations have been employed to solve analytically for obtaining the energy and exergy analysis parameters. It is expected that this study might be helpful for further related work.
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