低品位热驱动新型制冷循环性能理论研究  

Theoretical Study on Performances of a New Refrigeration System Driven by Low-Grade Energy

作　　者：何丽娟[1] 陈光明[2] 唐黎明[2] 

机构地区：[1]内蒙古科技大学,内蒙古包头014010 [2]浙江大学能源清洁利用国家重点实验室制冷与低温研究所,浙江杭州310027

出　　处：《工程热物理学报》2013年第5期812-816,共5页Journal of Engineering Thermophysics

基　　金：国家863计划(No 2008AA052419);国家自然科学基金(No.51106068);内蒙古自然科学基金(No;2011BS0710);内蒙古教育厅自然科学基金(No.NJZY1115);产学研资助项目(No.PY-201208)

摘　　要：传统低品位热驱动制冷空调的制冷效率低,该缺陷极大限制了低品位能源在空调制冷行业的应用。本文从热力学原理出发,提出了一种低品位热驱动的冷变换器制冷系统新流程。本文阐述冷变换器制冷系统工作原理,建立制冷系统各部件数学模型,分析计算了操作参数对循环热力学性能的影响。结果表明,低品位热源热驱动的冷变换器制冷系统不仅可以制取高品位冷量,具有较高的效率,而且还拓宽制冷系统的工作温度范围。Traditional air-conditioning driven by low-grade energy owned some defects, such as low efficiency and discontinuous operation, which restricted development of low-grade energy in the refrigeration field. Based on thermodynamic principle, a new cool transformer refrigeration system driven by low grade energy was introduced. The cool transformer operation principle was discussed, a mathematical model for each component of new refrigeration system was developed and performances of the refrigeration system were analyzed. Theoretical results indicate that new system driven by low-grade energy not only owns a higher value of refrigeration capacity, a higher value of COP but also widens the operating temperature range of refrigeration system.

关 键 词：低品位冷量 冷变换器 传热传质 系统性能 理论分析 

分 类 号：TB616[一般工业技术—制冷工程]