摘要
提出了一种带有一体化太阳能热泵的太阳能吸收式制冷系统(新型B),在合理设定的条件下与传统的系统进行了性能分析比较。结果表明:当太阳辐射强度为0.95 W/m2时,新型A系统的制冷能力是传统的1.6倍,新型B系统是传统的3.07倍,当太阳辐射强度为0.2 W/m2时,新型A系统的制冷能力与最高辐射强度相比下降了70%,新型B系统仅下降42.3%,而传统的系统不能制冷;当太阳辐射强度不同时,两种新型太阳能制冷系统通过调节水流量或压缩机转速稳定地提供制冷;在相同的冷凝温度和蒸发温度下,热泵系统的制冷剂R600a比R134a具有更高的COP,且在相同制冷量下R600a消耗的功率更少;通过经济性分析证明了两种新型系统是可行的、经济的。
Proposed a new type of solar absorption refrigeration system with an integration of solar energy heat pump,analyzed their performance compared with the traditional system under a reasonable set of conditions.The results show;when the sun radiation intensity is high（0.95 kW∕m^2 ）,the cooling capacity of the new system（A type）is 1.6 times the traditional system,the other new system（B type）is 3.07 times the traditional system,when the sun radiation intensity is low（0.2 kW∕m^2 ）,the cooling capacity of the new system（A type）is decreased by 70﹪ compared to high radiation intensity conditions,the other（B type）is decreased only by 42.3﹪,and the traditional system could not provide refrigeration;two new solar refrigeration systems can operate stably by regulate the water flow or compressor speed with solar radiation intensity varies;under the same evaporation and condensing temperature,R600a heat pump system has higher COP and less power consumption than R134a heat pump system under obtaining same cooling capacity;two new type of system was proved viable and economic through economy analysis.
出处
《制冷学报》
CAS
CSCD
北大核心
2014年第6期75-80,118,共7页
Journal of Refrigeration
关键词
太阳能吸收式制冷系统
性能分析
制冷能力
COP
消耗功率
COP
solar energy absorption refrigeration system
performance analysis
refrigerating capacity
coefficient of performance
power consumption
