太阳能-电能驱动复合制冷循环特性研究  

Study on Hybrid Refrigeration Cycle Powered by Combined Electricity-Solar Energy

作　　者：王林[1] 谈莹莹[1,2] 梁坤峰[1] 崔晓龙[1] 

机构地区：[1]河南科技大学制冷与热泵技术重点实验室,河南洛阳471003 [2]湖南大学土木工程学院,湖南长沙410082

出　　处：《工程热物理学报》2013年第3期409-413,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50906021;No.U1204525)

摘　　要：针对传统太阳能驱动吸收式制冷循环制冷效率低、间歇性工作以及机组投资较高等缺点,提出太阳能-电能联合驱动复合制冷循环,利用风冷与水冷压缩制冷单元耦合实现新循环全天候运行,利用太阳能驱动吸收制冷单元制取较高温度冷水直接承担室内显热冷负荷和带走压缩制冷单元冷凝器的热负荷,从而使该循环获得较高热性能系数和机械性能系数。建立组成新循环各单元热力学数学模型,分析逐时太阳辐射强度和室外温度对复合制冷循环的吸收制冷单元热性能系数、水冷和风冷电压缩制冷单元的机械性能系数影响,并与传统风冷电压缩制冷循环的节能效果进行比较分析,获得有益结论。The hybrid refrigeration cycle powered by combined electricity-solar energy is presented for the shortcomings of conventional solar-driven absorption refrigeration cycle, such as low efficiency, intermittent operation and high cost. The novel cycle can achieve all-weather operation by the coupling of air-cooled and water-cooled compression refrigeration units, and obtain high thermal performance and mechanical performance. The thermodynamic model of each component is established to analyze the effects of hourly solar irradiance and the outdoor air temperature on the COP of absorption refrigeration unit, air-cooled compression refrigeration unit and water-cooled compression refrigeration unit. The energy consumption of hybrid cycle is compared with that of conventional air-cooled compression refrigeration cycle. Main conclusions are reached.

关 键 词：吸收式制冷 压缩式制冷 复合制冷循环 性能系数 能耗 

分 类 号：TB66[一般工业技术—制冷工程]