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thermochemical heat storage Performance in the Gas/Liquid-Solid Reactions of SrCl₂ with NH₃

Natural Resources 2016年第11期7卷 655-665页

作者： Kazuki Kuwata Soichirou Masuda Noriyuki Kobayashi Takuya Fuse Toru Okamura Department of Chemical Engineering Nagoya University Nagoya Japan Denso Corporation Kariya Japan

thermochemical heat storage is a promising technology for improving energy efficiency through the utilization of low-grade waste heat. The formation of a SrCl2 ammine complex was selected as the reaction system for the purpose of this study. Discharge characteristics were evaluated in a packed bed reactor for both the gas-solid reaction and the liquid-solid reaction. The average power of the gas-solid reaction was influenced by the pressure of the supplied ammonia gas, with greater powers being recorded at higher ammonia pressure. For the liquid-solid reaction, the obtained average power was comparable to that obtained for the gas-solid reaction at 0.2 MPa. Moreover, the lower heat transfer resistance in the reactor was observed, which was likely caused by the presence of liquid ammonia in the system. Finally, the short-term durability of the liquid-solid reaction system was demonstrated over 10 stable charge/discharge cycles.

关键词： thermochemical heat storage SrCl2 Ammine Complex Formation Gas/Liquid-Solid Reaction

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Synthesis and characterization of salt-impregnated anodic aluminum oxide composites for low-grade heat storage

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International Journal of Minerals,Metallurgy and Materials 2020年第1期27卷 112-118页

作者： Bengisu Yilmaz Behiye Yüksel Gökhan Orhan Devrim Aydin Zafer Utlu stanbul University-Cerrahpasa Faculty of EngineeringDepartment of Metallurgy and Materials EngineeringIstanbul 34320Turkey Istanbul Gedik University Department of Mechanical EngineeringIstanbul 34876Turkey Eastern Mediterranean University Faculty of EngineeringDepartment of Mechanical EngineeringMersin 10Turkey

thermochemical heat storage(THS)systems have recently attracted a lot of attention in research and *** this study,an anodic aluminum oxide(AAO)template,fabricated by a two-step anodization method,was used for the first time as the matrix material for a THS *** salts were studied as thermochemical materials for their suitability in low-grade heat storage application driven by solar energy for an open *** were prepared by absorbing CaCl2,MgCl2,LiCl,LiNO3 and mixtures of these salts under a vacuum in an AAO *** Emission Scanning Electron Microscopy was used to examine the morphology of the produced AAO *** energy storage capacities of the composites were characterized using a differential scanning *** analysis showed that anodized Al plates were suitable matrix materials for THS systems,and composite sorbent prepared with a 1:1 ratio LiCl/LiNO3 salt mixture had the highest energy value among all composites,with an energy density of 468.1 k J·kg-1.

关键词： thermal energy storage salt impregnation thermochemical heat storage anodizing salt in matrix

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