Experimental and simulation study of a free piston expander linear generator for small-scale organic Rankine cycle - 文章详情页

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摘要：

This　paper　presents　a　new　free　piston　expander　linear　generator　(FPE-LG)　for　small-scale　organic　Rankine　cycle　(ORC)　waste　heat　recovery　systems.　An　FPE-LG　experimental　test　rig　is　developed,　and　a　simulation　model　is　established　with　Matlab/Simulink.　Motion　characteristics　and　output　performance　are　discussed　based　on　experimental　results,　and　the　simulation　model　is　validated.　Further　investigation　of　the　motion　characteristics　and　output　performance　of　FPE-LG　is　conducted　at　a　relatively　high　intake　pressure　and　operating　frequency.　Results　show　that　intake　pressure　and　operating　frequency　significantly　affect　motion　characteristics　and　output　performance.　The　velocity　and　displacement　of　the　free　piston　assembly　increase　with　increasing　intake　pressure,　and　the　peak　power　output　initially　increases　then　decreases　with　increasing　operating　frequency.　The　peak　power　output　is　676　W　when　the　intake　pressure,　external　load　resistance,　and　operating　frequency　are　10　bar,　90,　and　15　Hz,　respectively.　Using　the　simulation　model　to　study　FPE-LG　operating　parameters　is　convenient,　and　the　model　can　serve　as　a　reference　for　the　future　design　and　optimization　of　FPE-LG.　(C)　2018　Elsevier　Ltd.　All　rights　reserved.

关键词：

Motion characteristics Output performance Free piston expander-linear generator Waste heat recovery Organic Rankine cycle

作者机构：

[ 1 ] [Xu, Yonghong]Beijing Informat Sci & Technol Univ, Sch Elect & Mech Engn, Beijing 100192, Peoples R China
[ 2 ] [Tong, Liang]Beijing Informat Sci & Technol Univ, Sch Elect & Mech Engn, Beijing 100192, Peoples R China
[ 3 ] [Liu, Rong]Beijing Informat Sci & Technol Univ, Sch Elect & Mech Engn, Beijing 100192, Peoples R China
[ 4 ] [Zhang, Hongguang]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Key Lab Enhanced Heat Transfer & Energy Conservat, Coll Environm & Energy Engn,MOE Minist Educ, Pingleyuan 100, Beijing 100124, Peoples R China
[ 5 ] [Hou, Xiaochen]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Key Lab Enhanced Heat Transfer & Energy Conservat, Coll Environm & Energy Engn,MOE Minist Educ, Pingleyuan 100, Beijing 100124, Peoples R China
[ 6 ] [Yang, Fubin]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Key Lab Enhanced Heat Transfer & Energy Conservat, Coll Environm & Energy Engn,MOE Minist Educ, Pingleyuan 100, Beijing 100124, Peoples R China
[ 7 ] [Yu, Fei]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Key Lab Enhanced Heat Transfer & Energy Conservat, Coll Environm & Energy Engn,MOE Minist Educ, Pingleyuan 100, Beijing 100124, Peoples R China
[ 8 ] [Yang, Yuxin]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Key Lab Enhanced Heat Transfer & Energy Conservat, Coll Environm & Energy Engn,MOE Minist Educ, Pingleyuan 100, Beijing 100124, Peoples R China
[ 9 ] [Tian, Yaming]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Key Lab Enhanced Heat Transfer & Energy Conservat, Coll Environm & Energy Engn,MOE Minist Educ, Pingleyuan 100, Beijing 100124, Peoples R China
[ 10 ] [Zhao, Tenglong]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Convers, Key Lab Enhanced Heat Transfer & Energy Conservat, Coll Environm & Energy Engn,MOE Minist Educ, Pingleyuan 100, Beijing 100124, Peoples R China
[ 11 ] [Xu, Yonghong]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 12 ] [Tong, Liang]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 13 ] [Zhang, Hongguang]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 14 ] [Hou, Xiaochen]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 15 ] [Yang, Fubin]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 16 ] [Yu, Fei]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 17 ] [Yang, Yuxin]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 18 ] [Liu, Rong]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 19 ] [Tian, Yaming]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China
[ 20 ] [Zhao, Tenglong]Collaborat Innovat Ctr Elect Vehicles Beijing, Pingleyuan 100, Beijing 100124, Peoples R China

通讯作者信息：

张红光
[Zhang, Hongguang]Beijing Univ Technol, Beijing, Peoples R China;;[Tong, Liang]Beijing Informat Sci & Technol Univ, Beijing, Peoples R China

电子邮件地址：

tongliang@bistu.edu.cn |
zhanghongguang@bjutedu.cn

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