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Magnesium oxide/water chemical heat pump to enhance energy utilization of a cogeneration system

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  • Kato, Y.
  • Sasaki, Y.
  • Yoshizawa, Y.

Abstract

A chemical heat pump using a magnesium oxide/water reaction system is expected to be applicable to cogeneration systems using gas engine, diesel engine, and fuel cells. The operability of the heat pump was examined experimentally under hydration operation pressures between 30 and 203kPa. In the experiment, a reactant having high durability for repetitive operation was packed in a cylindrical reactor. The cycle of operation was repeated under various thermally driven operation conditions. The forward and reverse reactions were studied by measuring the reactor bed temperature distribution and the reacted fraction changes. The reactor bed stored heat at around 300–400°C by the dehydration reaction and released heat at around 100–200°C by the hydration reaction under the heat amplification mode operation. The practical possibility of the reactor bed was discussed based on the experimental results. The heat pump is expected to be applicable for load leveling in a cogeneration system by chemically storing surplus heat during low heat demand and supplying heat during peak demand. It was shown that the chemical heat pump would be able to improve the efficiency of energy utilization in cogeneration systems while also helping to reduce energy consumption and global carbon dioxide emissions.

Suggested Citation

  • Kato, Y. & Sasaki, Y. & Yoshizawa, Y., 2005. "Magnesium oxide/water chemical heat pump to enhance energy utilization of a cogeneration system," Energy, Elsevier, vol. 30(11), pages 2144-2155.
    • Handle: RePEc:eee:energy:v:30:y:2005:i:11:p:2144-2155
    DOI: 10.1016/j.energy.2004.08.019
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    1. Takasu, Hiroki & Ryu, Junichi & Kato, Yukitaka, 2017. "Application of lithium orthosilicate for high-temperature thermochemical energy storage," Applied Energy, Elsevier, vol. 193(C), pages 74-83.
    2. Flegkas, S. & Birkelbach, F. & Winter, F. & Freiberger, N. & Werner, A., 2018. "Fluidized bed reactors for solid-gas thermochemical energy storage concepts - Modelling and process limitations," Energy, Elsevier, vol. 143(C), pages 615-623.
    3. Wang, L.W. & Wang, R.Z. & Oliveira, R.G., 2009. "A review on adsorption working pairs for refrigeration," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(3), pages 518-534, April.
    4. Shkatulov, Alexandr & Ryu, Junichi & Kato, Yukitaka & Aristov, Yury, 2012. "Composite material “Mg(OH)2/vermiculite”: A promising new candidate for storage of middle temperature heat," Energy, Elsevier, vol. 44(1), pages 1028-1034.
    5. Ullah, K.R. & Saidur, R. & Ping, H.W. & Akikur, R.K. & Shuvo, N.H., 2013. "A review of solar thermal refrigeration and cooling methods," Renewable and Sustainable Energy Reviews, Elsevier, vol. 24(C), pages 499-513.
    6. Xie, Jian & Xu, Jinliang & Xing, Feng & Wang, Zixuan & Liu, Huan, 2014. "The phase separation concept condensation heat transfer in horizontal tubes for low-grade energy utilization," Energy, Elsevier, vol. 69(C), pages 787-800.
    7. Dizaji, Hossein Beidaghy & Hosseini, Hannaneh, 2018. "A review of material screening in pure and mixed-metal oxide thermochemical energy storage (TCES) systems for concentrated solar power (CSP) applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 98(C), pages 9-26.
    8. Shkatulov, Alexandr & Aristov, Yuri, 2015. "Modification of magnesium and calcium hydroxides with salts: An efficient way to advanced materials for storage of middle-temperature heat," Energy, Elsevier, vol. 85(C), pages 667-676.
    9. Takuya Hatakeyama & Norihiko L. Okamoto & Satoshi Otake & Hiroaki Sato & Hongyi Li & Tetsu Ichitsubo, 2022. "Excellently balanced water-intercalation-type heat-storage oxide," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    10. Cabeza, Luisa F. & Solé, Aran & Barreneche, Camila, 2017. "Review on sorption materials and technologies for heat pumps and thermal energy storage," Renewable Energy, Elsevier, vol. 110(C), pages 3-39.
    11. Askalany, Ahmed A. & Salem, M. & Ismael, I.M. & Ali, A.H.H. & Morsy, M.G. & Saha, Bidyut B., 2013. "An overview on adsorption pairs for cooling," Renewable and Sustainable Energy Reviews, Elsevier, vol. 19(C), pages 565-572.
    12. Han, X.C. & Xu, H.J. & Hua, W.S., 2023. "Decomposition performance and kinetics analysis of magnesium hydroxide regulated with C/N/Ti/Si additives for thermochemical heat storage," Applied Energy, Elsevier, vol. 344(C).
    13. Pardo, P. & Deydier, A. & Anxionnaz-Minvielle, Z. & Rougé, S. & Cabassud, M. & Cognet, P., 2014. "A review on high temperature thermochemical heat energy storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 32(C), pages 591-610.
    14. Fadhel, M.I. & Sopian, K. & Daud, W.R.W. & Alghoul, M.A., 2011. "Review on advanced of solar assisted chemical heat pump dryer for agriculture produce," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(2), pages 1152-1168, February.
    15. Liuzhang Ouyang & Miaolian Ma & Minghong Huang & Ruoming Duan & Hui Wang & Lixian Sun & Min Zhu, 2015. "Enhanced Hydrogen Generation Properties of MgH 2 -Based Hydrides by Breaking the Magnesium Hydroxide Passivation Layer," Energies, MDPI, vol. 8(5), pages 1-16, May.
    16. Cot-Gores, Jaume & Castell, Albert & Cabeza, Luisa F., 2012. "Thermochemical energy storage and conversion: A-state-of-the-art review of the experimental research under practical conditions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(7), pages 5207-5224.
    17. Taesu Yim & Hong Soo Kim & Jae Yong Lee, 2018. "Cyclic Assessment of Magnesium Oxide with Additives as a Thermochemical Material to Improve the Mechanical Strength and Chemical Reaction," Energies, MDPI, vol. 11(9), pages 1-15, September.
    18. Yan, T. & Wang, R.Z. & Li, T.X. & Wang, L.W. & Fred, Ishugah T., 2015. "A review of promising candidate reactions for chemical heat storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 43(C), pages 13-31.
    19. Müller, Danny & Knoll, Christian & Gravogl, Georg & Artner, Werner & Welch, Jan M. & Eitenberger, Elisabeth & Friedbacher, Gernot & Schreiner, Manfred & Harasek, Michael & Hradil, Klaudia & Werner, An, 2019. "Tuning the performance of MgO for thermochemical energy storage by dehydration – From fundamentals to phase impurities," Applied Energy, Elsevier, vol. 253(C), pages 1-1.
    20. Scapino, Luca & Zondag, Herbert A. & Van Bael, Johan & Diriken, Jan & Rindt, Camilo C.M., 2017. "Sorption heat storage for long-term low-temperature applications: A review on the advancements at material and prototype scale," Applied Energy, Elsevier, vol. 190(C), pages 920-948.
    21. Birkelbach, Felix & Deutsch, Markus & Werner, Andreas, 2020. "The effect of the reaction equilibrium on the kinetics of gas-solid reactions — A non-parametric modeling study," Renewable Energy, Elsevier, vol. 152(C), pages 300-307.

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