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메탄올 - 글리세린 시스템을 이용한 흡수 열 펌프의 이론적 성능
민병훈 ( Byong Hun Min ) 한국화학공학회 1996 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.34 No.2
An absorption heat pump system for energy recovery has been using aqueous solutions containing lithium bromide. Because of problems such as crystallization and corrosion in these solutions, methanol-glycerine(working pair) was selected. The calculation of the theoretical coefficient of performance(COP) for the absorption heat pump was carried out based on the thermodynamic properties of this working pair over various operating conditions for each part of the system. The values of COP are as follows. The COP for heating 1.3-1.6. The COP for cooling 0.3-0.7.
민병훈(Byong Hun Min) 한국에너지기후변화학회 2012 에너지기후변화학회지 Vol.7 No.2
The rational management of energy recovery over a wide range of temperature is possible with chemical heat pump using reversible solid-gas reaction. Because of the low heat transfer rate due to the gas phase, enhancement of heat transfer in the reactor bed is one of the most important subjects for developing gas-solid chemical heat pumps. In this study, the decane was used as liquid solvent to promote heat transfer in the chemical heat pump system utilizing CaCl₂-CH₃OH as working pair. Because in the several cycle, pseudo equilibrium hysteresis behavior was not observed in the synthesis and decomposition reactions, the suspension phase with solvent in the reactors has shown that it is possible to achieve continuous operation of solid-gas chemical heat pump. The equilibrium curve for pressuretemperature was expressed in the form of vant Hoff equation. The simulated calculation of coefficient of performance was performed over the operating conditions.