A Study on the Thermal Characteristics of a $MgO/H_2O$ Chemical Heat Pump

$MgO/H_2O$ 계 화학식 열펌프의 열적 특성에 관한 연구

  • Published : 2004.01.01

Abstract

The chemical heat pump based on the Dehydration/Hydration process with a MgO/$H_2O$ system has been researched. The reactor bed could be expected to store the heat around 200∼37$0^{\circ}C$ by the dehydration reaction and to release the heat around 100∼16$0^{\circ}C$ by the hydration reaction under the heat amplification mode operation. The heat output rate of the heat pump system was evaluated using the experimentally determined parameters. The results show that 6∼50 W/kg of heat output and 0.5∼0.8 of heat recovery ratio are attainable. The heat pump will be applicable for a load leveling in a co-generation system by chemical storage of surplus heat at low heat demand and by supplying heat in the peak load period.

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References

  1. Surface Technology v.22 The rates of hydration of sea water magnesia Bhatti,A.S.;Dollimore,D. https://doi.org/10.1016/0376-4583(84)90055-4
  2. Applied Thermal Engineering v.18 Durability to repetitive reaction of magnesium oxide/water reaction system for a heat pump Kato,Y.;Kobayashi,K.;Yoshizawa,Y. https://doi.org/10.1016/S1359-4311(97)00058-6
  3. Applied Thermal Engineering v.21 A review of chemical heat pump technology and applications Wongsuwan,W.;Kumar,S.;Neveu,P.;Meunier,F. https://doi.org/10.1016/S1359-4311(01)00022-9
  4. Applied Thermal Engineering v.16 Kinetic study of the hydration of magnesium oxide for a chemical heat pump Kato,Y.;Yamashita,N.;Kobayashi,K.;Yoshizawa,Y. https://doi.org/10.1016/1359-4311(96)00009-9
  5. Proceedings of 32en Intersociety of Energy Conversion Engineering Conference v.2 Reaction durability of a magnesiym oxide/water chemical heat pump Koto,Y.;Nanmoku,W.;Takahashi,F.;Yoshizawa,Y.
  6. Proceedings of International Sorption Heat Pump Conf. Thermal performance of a cogeneration system using a chemical heat pump Koto,Yoshizawa,Y.
  7. Proceedings of the 2nd International Heat Powered Cycles v.Ⅱ Operability analysis of a thermally driven magnesium oxide/water chemical heat pump Koto,Y.;Minakami,A;Yoshizawa,Y.