圆筒式尾气温差发电系统的设计与试验
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摘要
为了节约能源提高汽车尾气利用率,应用塞贝克效应,为汽车排气系统设计了一套圆筒式汽车尾气温差发电系统,通过理论计算得到该系统的热电转换效率约为4.59%,用在大货车上一年可以节省超过800 L燃油。搭建了尾气温差发电试验台,试验结果表明,当发动机正常运行,该圆筒式尾气温差发电系统冷热两端达到一定温差时,产生的电压和电流可供车载电器和蓄电池有效使用,该发电装置设计合理,达到了节能效果,具有较好的应用前景。
In order to save energy and to effectively utilize the waste heat from automobile exhaust gases,a cylindrical exhaust thermoelectric generator(TEG) system was designed with the Seebeck effect applied.The thermal power conversion efficiency obtained is about by using the theoretical calculation and more than 800 L fuel can be saved in one year. Finally,a TEG test rig was built. The test results show that,when the engine is running normally and the temperature difference between the hot and cold ends of the cylindrical TEG system reaches a certain value,the generated voltage and current can be used effectively by the vehicle electric appliances and the storage battery. The proposed system has a reasonable design,improves the energy efficiency and therefore has a good application prospect.
In order to save energy and to effectively utilize the waste heat from automobile exhaust gases,a cylindrical exhaust thermoelectric generator(TEG) system was designed with the Seebeck effect applied.The thermal power conversion efficiency obtained is about by using the theoretical calculation and more than 800 L fuel can be saved in one year. Finally,a TEG test rig was built. The test results show that,when the engine is running normally and the temperature difference between the hot and cold ends of the cylindrical TEG system reaches a certain value,the generated voltage and current can be used effectively by the vehicle electric appliances and the storage battery. The proposed system has a reasonable design,improves the energy efficiency and therefore has a good application prospect.
引文
[1]吴胜男,曾海鹏,童一帆,等.我国节能与新能源汽车产业政策研究[J].汽车工程学报,2015,5(3):157-164.WU Shengnan,ZENG Haipeng,TONG Yifan,et al.Study on Industrial Policy of Energy-Saving and New Energy Vehicles in China[J].Chinese Journal of Automotive Engineering,2015,5(3):157-164.(in Chinese)
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[6]CHAMPIER D.Thermoelectric Generators:A Review of Applications[J].Energy Conversion&Management,2017,140:167-181.
[7]徐立珍,李彦,杨知,等.汽车尾气温差发电的实验研究[J].清华大学学报(自然科学版),2010,50(2):287-289.XU Lizhen,LI Yan,YANG Zhi,et al.Experimental Study of the Thermoelectric Generation from Automobile Exhaust[J].Journal of Tsinghua University(Science and Technology),2010,50(2):287-289.(in Chinese)
[8]刘越,石秀勇,倪计民,等.发动机尾气余热温差发电系统的优化[J].内燃机工程,2017,38(2):8-14.LIU Yue,SHI Xiuyong,NI Jimin,et al.Optimization of Thermoelectric Generation System with Engine Exhaust Gas[J].Chinese Internal Combustion Engine Engineering,2017,38(2):8-14.(in Chinese)
[9]WANG Yuchao,DAI Chuanshan,WANG Shixue.Theoretical Analysis of a Thermoelectric Generator Using Exhaust Gas of Vehicles as Heat Source[J].Applied Energy,2013,112(4):1171-1180.
[10]JAWORSKI M,BEDNARCZYK M,CZACHOR M.Experimental Investigation of Thermoelectric Generator(T E G)w i t h P C M M o d u l e[J].A p p l i e d T h e r m a l Engineering,2016,96:527-533.
[11]MOSTAFAVI S A,MAHMOUDI M.Modeling and Fabricating a Prototype of a Thermoelectric Generator System of Heat Energy Recovery from Hot Exhaust Gases and Evaluating the Effects of Important System Parameters[J].Applied Thermal Engineering,2018,132:624-636.
[12]CAO Qimin,LUAN Weiling,WANG Tongcai.Performance Enhancement of Heat Pipes Assisted Thermoelectric Generator for Automobile Exhaust Heat Recovery[J].Applied Thermal Engineering,2017,130:1472-1479.
[13]ORR B,AKBARZADEH A,LAPPAS P.An Exhaust Heat Recovery System Utilising Thermoelectric Generators and Heat Pipes[J].Applied Thermal Engineering,2017,126:1185-1190.
[14]戴海燕,李淼林.汽车尾气余热温差发电装置设计[J].机械设计与制造工程,2017,46(1):103-106.DAI Haiyan,LI Miaolin.Design of Thermoelectric Power Generation Based on Engine Exhaust Gas[J].Machiner Design and Manufacturing Engineering,2017,46(1):103-106.(in Chinese)
[2]刘峥,王建昕.汽车发动机原理教程[M].北京:清华大学出版社,2001.LIU Zheng,WANG Jianxin.The Principle Course of Automobile Engine[M].Beijing:Tsinghua University Press,2001.(in Chinese)
[3]ROWE D M.Thermoelectric Handbook[M].New York:CRC Press,2006:2-3.
[4]KUSHCH A S,BASS J C,GHAMATY S,et al.Thermoelectric Development at Hi-Z Technology[C]//Proceedings of ICT,2001:422-430.
[5]AIXALA L,MONNET V.Conclusion of RENOTERProject(Waste Heat Recovery for Trucks and Passenger Cars)[Z].Thermoelectric Goes Automotive II,2012:241-59.
[6]CHAMPIER D.Thermoelectric Generators:A Review of Applications[J].Energy Conversion&Management,2017,140:167-181.
[7]徐立珍,李彦,杨知,等.汽车尾气温差发电的实验研究[J].清华大学学报(自然科学版),2010,50(2):287-289.XU Lizhen,LI Yan,YANG Zhi,et al.Experimental Study of the Thermoelectric Generation from Automobile Exhaust[J].Journal of Tsinghua University(Science and Technology),2010,50(2):287-289.(in Chinese)
[8]刘越,石秀勇,倪计民,等.发动机尾气余热温差发电系统的优化[J].内燃机工程,2017,38(2):8-14.LIU Yue,SHI Xiuyong,NI Jimin,et al.Optimization of Thermoelectric Generation System with Engine Exhaust Gas[J].Chinese Internal Combustion Engine Engineering,2017,38(2):8-14.(in Chinese)
[9]WANG Yuchao,DAI Chuanshan,WANG Shixue.Theoretical Analysis of a Thermoelectric Generator Using Exhaust Gas of Vehicles as Heat Source[J].Applied Energy,2013,112(4):1171-1180.
[10]JAWORSKI M,BEDNARCZYK M,CZACHOR M.Experimental Investigation of Thermoelectric Generator(T E G)w i t h P C M M o d u l e[J].A p p l i e d T h e r m a l Engineering,2016,96:527-533.
[11]MOSTAFAVI S A,MAHMOUDI M.Modeling and Fabricating a Prototype of a Thermoelectric Generator System of Heat Energy Recovery from Hot Exhaust Gases and Evaluating the Effects of Important System Parameters[J].Applied Thermal Engineering,2018,132:624-636.
[12]CAO Qimin,LUAN Weiling,WANG Tongcai.Performance Enhancement of Heat Pipes Assisted Thermoelectric Generator for Automobile Exhaust Heat Recovery[J].Applied Thermal Engineering,2017,130:1472-1479.
[13]ORR B,AKBARZADEH A,LAPPAS P.An Exhaust Heat Recovery System Utilising Thermoelectric Generators and Heat Pipes[J].Applied Thermal Engineering,2017,126:1185-1190.
[14]戴海燕,李淼林.汽车尾气余热温差发电装置设计[J].机械设计与制造工程,2017,46(1):103-106.DAI Haiyan,LI Miaolin.Design of Thermoelectric Power Generation Based on Engine Exhaust Gas[J].Machiner Design and Manufacturing Engineering,2017,46(1):103-106.(in Chinese)