HFC152a/HCFC141b混合气体水合物相平衡特性研究  

STUDY ON PHASE-EQUILIBRIUM PROPERTY OF HFC152a/HCFC141b MIXED GAS HYDRATE

作　　者：郭开华[1] 张奕[1] 舒碧芬[1] 

机构地区：[1]中国科学院广州能源研究所热泵与空调制冷技术研究中心,广州510070

出　　处：《工程热物理学报》1997年第6期657-660,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金;广东省自然科学基金

摘　　要：In this paper, the vapor-liquid-solid phase-equilibrium property of a mixed gas hydrate formed by the blend of CFC alternatives HFC152a/HCFC14lb is studied under a constant volume condition and the phase diagram of the mixed gas hydrate is presented first time. It has been shown that a cool-storage material with superior performance property can be achieved from the mixed refrigerant hydrate, due to the principle of property compensation of mixtures. The experimelltal result reveals that HFC152a/HCFC141b mixed gas hydrate has an azeotropic melting property This means that mixed gas hydrates can has phaseequilibrium properties similar to that of mixture vapor-liquid phase equilibrium and it may be described by means of the solution theory. This discovery is significant for understanding the formation and phase change of mixed gas hydrates and improvement of gas-hydratethermal-energy-storage materials.In this paper, the vapor-liquid-solid phase-equilibrium property of a mixed gas hydrate formed by the blend of CFC alternatives HFC152a/HCFC14lb is studied under a constant volume condition and the phase diagram of the mixed gas hydrate is presented first time. It has been shown that a cool-storage material with superior performance property can be achieved from the mixed refrigerant hydrate, due to the principle of property compensation of mixtures. The experimelltal result reveals that HFC152a/HCFC141b mixed gas hydrate has an azeotropic melting property This means that mixed gas hydrates can has phaseequilibrium properties similar to that of mixture vapor-liquid phase equilibrium and it may be described by means of the solution theory. This discovery is significant for understanding the formation and phase change of mixed gas hydrates and improvement of gas-hydratethermal-energy-storage materials.

关 键 词：混合气体水合物 相平衡 共融 致冷剂 空调器 

分 类 号：TB61[一般工业技术—制冷工程] TB64