摘要
随着社会发展与人民生活水平的提高,冷库需求显著增加,而制冷系统能耗已占冷库能耗的70%以上,故降低制冷系统能耗将有助于冷库的可持续发展。针对以往研究中用于冷库的太阳能制冷系统经济可行性较差的问题,文中提出将高效的太阳能吸收-过冷压缩式复合制冷系统用于冷库供冷,将低品位太阳能驱动的吸收子系统用于为压缩子系统提供过冷,提高了制冷系统的节能效果和经济性。文中基于广州地区全年气象数据与冷库冷负荷对该系统进行了准静态模拟,并结合模拟结果进行热力经济评价。结果显示,该复合制冷系统单位集热器面积年节电量为63 kW·h,投资回收期仅为6.74年。因此,将太阳能吸收-过冷压缩式复合制冷系统用于冷库具有良好的节能效果和经济性。
Recently,the demand for cold storages has increased significantly with the development of society and people's living standards.The energy consumption of cooling system occupies 70%of total energy consumption of a cold storage,so to reduce the energy consumption of the cooling system is conducive to the sustainable development of cold storages.Focusing on the poor economic performance of solar cooling system in previous studies,this study put forward the solar absorption-subcooled compression hybrid cooling system(SASCHCS).The absorption subsystem driven by low grade solar energy is used to subcool the compression subsystem,so as to improve the energy-sa-ving and economic performance.The corresponding techno-economic analysis was performed based on quasi-static simulation taking into account the annual meteorological data and cooling load of Guangzhou.It shows that the annual electricity saving for each unit collector area is 63 kW·h and the payback period is only 6.74 years.Thus,the energy saving and economic performance of SASCHCS is remarkable for the cold storages.
作者
李泽宇
许永睿
陈宏铠
LI Zeyu;XU Yongrui;CHEN Hongkai(School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China)
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2020年第12期27-33,81,共8页
Journal of South China University of Technology(Natural Science Edition)
基金
广东省自然科学基金面上项目(2020A1515010423)。
关键词
太阳能制冷
吸收-压缩复合系统
冷库
热力经济评价
solar cooling
absorption-compression system
cold storage
thermodynamic and economic analysis
