Analysis of a novel metal hydride cycle for simultaneous heating and cooling |
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| Authors: | Syed Sajid Ahmed S. Srinivasa Murthy |
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| Affiliation: | Department of Mechanical Engineering, Refrigeration and Air Conditioning Laboratory, Indian Institute of Technology Madras, Chennai 600036, India |
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| Abstract: | Out of the many promising applications of metal hydrides, refrigeration, heat pumping and heat transformation are important. In order to achieve improved performance, a novel three-alloy cycle is proposed in which, for heat input at an intermediate temperature, heat outputs at high temperature and also at warm temperature are obtained in addition to refrigeration. The performance of this cycle using the alloys LaNi4.6Sn0.4, LaNi4.7Al0.3 and MmNi4.5Al0.5 is studied based on thermodynamics and reaction kinetics. Coefficients of performance, half-cycle times and specific alloy outputs are evaluated. |
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| Keywords: | Metal hydride Heat pump Heat transformer Refrigerator Specific alloy output COP Half-cycle time |
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