太阳能光伏-温差发电驱动的新型冰箱模型设计与热力学分析  

Design and thermodynamical analysis of a new refrigerator model driven by photovoltaic and thermoelectric power generation

作　　者：刘永生[1] 谷民安[1] 杨晶晶[1] 石奇光[1] 高湉[1] 杨金焕[1] 杨正龙[2] 

机构地区：[1]上海电力学院太阳能研究所,上海200090 [2]同济大学功能高分子材料研究所,上海200092

出　　处：《物理学报》2010年第10期7368-7373,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10804072;50703029);上海市基础研究重点项目(批准号:08JC1410400);上海市纳米科技专项(批准号:0952NM02700;0752NM012);上海市青年科技启明星计划(批准号:07QA14026;09QA1406300);上海市节能减排科技支撑项目(批准号:09DZ1202500);上海市教育委员会科研创新项目(批准号:11ZZ168);浙江大学教育部重点实验室(批准号:2009MSF05)资助的课题~~

摘　　要：结合太阳能电池温度特性和温差发电特点,设计了一套新的太阳能光伏发电-温差发电驱动的冰箱模型,该模型包括太阳能光伏电池、半导体温差发电模块、电源控制系统等.根据负载用电需求,做出了光伏发电系统的设计方案.采用热力学基本理论,对该模型进行了工作效率及火用效率的分析.结果发现:能效比COP达到了2.73(一般冰箱COP为2左右),火用效率也达到42.5%.同时,该系统模型环境效益明显,可以减排CO21394.2kg,SO227.2kg,氮氧化物21.0kg.这对可再生能源的应用具有理论指导意义。According to solar cell＇s temperature properties and thermoelectric power properties,a refrigerator model is newly designed,which is driven by solar photovoltaic and thermoelectric power generation.It includes solar cells,thermoelectric power modules,power control system,etc.Based on the load demand for electricity,a photovoltaic power generation system is designed.The operating efficiency and exergy efficiency of the model are analyzed by thermodynamic theory.We find that the COP（coefficient of performance） achieves 2.73（COP is about 2 for general refrigerators） and exergy efficiency achieves 42.5%.By using the model,the emissions of carbon dioxide 1394.2 kg,sulfur dioxide 27.2 kg and nitrogen oxides 21.0 kg are reduced,which can provide an interesting direction to the applications of renewable energy.

关 键 词：光伏发电 温差发电 热力学分析 

分 类 号：TM925.21[电气工程—电力电子与电力传动]