燃料电池余热驱动吸附制冷复合系统实验研究  

Experimental Study on a Hybrid Adsorption Refrigeration System Powered by Low Grade Heat from Fuel Cells

作　　者：徐静 潘权稳 张威 刘智亮 葛天舒[1] 王如竹[1] XU Jing;PAN Quanwen;ZHANG Wei;LIU Zhiliang;GE Tianshu;WANG Ruzhu(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Cryogenic Center,Hangzhou City University,Hangzhou 310015,China;GREE Electric Appliances,INC,Zhuhai 519070,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]浙大城市学院低温中心,杭州310015 [3]珠海格力电器股份有限公司,珠海519070

出　　处：《工程热物理学报》2024年第1期1-6,共6页Journal of Engineering Thermophysics

基　　金：国家重点研发计划(No.2020YFB1506303);国家自然科学基金(No.51922070)。

摘　　要：回收低温质子交换膜燃料电池运行过程中产生的约70℃低品位废热实现高效制冷是提高冷电联供系统总效率的关键。本文研制并搭建了吸附制冷与固体除湿空调复合系统实验平台,利用燃料电池余热驱动实现高效制冷除湿。实验结果表明,复合系统能有效被70℃低品位余热驱动。提高入口空气的温度或相对湿度能有效提升系统性能,制冷量和COP分别达3.95 kW和0.539。经计算,采用该复合系统回收利用燃料电池产生的70℃低品位余热能大幅提高系统总效率,可达67.3%。Utilizing 70℃ low-grade heat sources discharged by low-temperature proton exchange membrane fuel cells for the efficient supply of cooling capacity is the key to enhance the efficiency of combined cooling and power systems.In this paper,a hybrid adsorption refrigeration system using solid desiccant cooling system is designed and experimentally studied to recover 70℃ low grade heat and realize efficient cooling and dehumidification.Results show that the hybrid system can be operated effectively under a heat source temperature of 70◦C.Increasing inlet air temperature or relative humidity can facilitate the system performance promotion.The cooling capacity and COP are up to 3.95 kW and 0.539,respectively.Using such hybrid system to exploit 70℃ low-grade heat sources can significantly improve the overall efficacy of proton exchange membrane fuel cells,reaching 67.3%.

关 键 词：质子交换膜燃料电池 低品位余热 高效利用 吸附制冷 除湿换热器 

分 类 号：TK173[动力工程及工程热物理—热能工程]