直膨式太阳能热泵系统的数学建模及验证  

Mathematical modeling and verifying of direct expansion solar assisted heat pump system

作　　者：胡巍亚 侯亚祥 曹玉春[1] 蒋绿林[1] 陈孚江[1] 

机构地区：[1]常州大学能源与动力工程系,江苏常州213016

出　　处：《可再生能源》2016年第5期645-649,共5页Renewable Energy Resources

基　　金：国家自然科学基金项目(51308077);江苏省高校自然科学基金项目(13KJB560001)

摘　　要：文章建立了直膨式太阳能热泵系统的数学模型,其中包括有盖板的平板太阳能集热蒸发器数学模型、压缩机数学模型、冷凝器数学模型以及膨胀阀数学模型,并从两种角度对该数学模型进行求解,同时建立了实验平台,以实验数据来验证模型的正确性。结果表明,实验计算所得COP为6.18、集热效率η为0.65,模型的两种求解所得COP分别为7.11和6.95、集热效率η分别为0.71和0.68,将模型求解结果与实验计算结果进行对比,同时考虑理论与实际所允许的差距,可得该文建立的模型是正确的。In this study, the mathematical model of direct expansion solar assisted heat pump system was established, including the model of the flat-plate solar collector with a cover plate,the compressor, the condenser and the expansion valve together with the solution in two different ways. Meanwhile, the experimental platform was established to verify the simulation data. It showed that the COP of this experiment is 6.18, and the heat collecting efficiency is 0.65. The COP of two solutions are 7.11 and 6.95, and the heat collecting efficiency are 0.71 and 0.68,respectively.Compared with the computational results, the established model is correct taking consideration of the computational errors.

关 键 词：直膨式太阳能热泵系统 数学模型 模型求解 实验验证 

分 类 号：TK515[动力工程及工程热物理—热能工程] TB657[一般工业技术—制冷工程]