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Analysis of a novel metal hydride cycle for simultaneous heating and cooling

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  • Sajid Ahmed, Syed
  • Srinivasa Murthy, S.

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.

Suggested Citation

  • Sajid Ahmed, Syed & Srinivasa Murthy, S., 2004. "Analysis of a novel metal hydride cycle for simultaneous heating and cooling," Renewable Energy, Elsevier, vol. 29(4), pages 615-631.
    • Handle: RePEc:eee:renene:v:29:y:2004:i:4:p:615-631
    DOI: 10.1016/j.renene.2003.07.005
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    References listed on IDEAS

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    1. Sun, Da-Wen, 1996. "Thermodynamic analysis of the operation of two-stage metal-hydride heat pumps," Applied Energy, Elsevier, vol. 54(1), pages 29-47, May.
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    Cited by:

    1. Malleswararao, K. & Aswin, N. & Srinivasa Murthy, S. & Dutta, Pradip, 2022. "Studies on long-term and buffer modes of operations of a thermal energy storage system using coupled metal hydrides," Energy, Elsevier, vol. 258(C).
    2. Gkanas, Evangelos I. & Khzouz, Martin & Panagakos, Grigorios & Statheros, Thomas & Mihalakakou, Giouli & Siasos, Gerasimos I. & Skodras, Georgios & Makridis, Sofoklis S., 2018. "Hydrogenation behavior in rectangular metal hydride tanks under effective heat management processes for green building applications," Energy, Elsevier, vol. 142(C), pages 518-530.
    3. Nastasi, Benedetto & Lo Basso, Gianluigi, 2016. "Hydrogen to link heat and electricity in the transition towards future Smart Energy Systems," Energy, Elsevier, vol. 110(C), pages 5-22.
    4. Yang, Fusheng & Wu, Zhen & Liu, Shengzhe & Zhang, Yang & Wang, Geoff & Zhang, Zaoxiao & Wang, Yuqi, 2018. "Theoretical formulation and performance analysis of a novel hydride heat Pump(HHP) integrated heat recovery system," Energy, Elsevier, vol. 163(C), pages 208-220.

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