Influence of inlet pressure and rotational speed on the performance of high pressure single screw expander prototype - 文章详情页

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摘要：

To　recover　high　pressure　energy　in　a　letdown　station,　a　high　pressure　single　screw　expander　(HPSSE)　with　117　mm　diameter　is　developed　in　our　laboratory　recently.　This　study　presents　the　results　of　an　experimental　survey　on　the　performance　of　HPSSE　under　varied　inlet　pressure　and　rotational　speed.　The　inlet　pressure　of　HPSSE　ranges　from　1.0　MPa　to　5.0　MPa　and　the　rotational　speed　is　from　1500　rpm　to　3000　rpm.　The　experimental　results　show　that　when　the　inlet　pressure　is　5.0　MPa,　the　maximum　power　output,　volumetric　efficiency,　isentropic　efficiency　and　shaft　efficiency　of　HPSSE　are　56.55　kW,　80.57%,　62.55%　and　50.96%,　respectively.　The　volumetric　efficiency　is　immensely　affected　by　inlet　pressure　under　fairly　slow　rotational　speed　and　a　slight　change　in　volumetric　efficiency　is　observed　under　considerably　high　rotational　speed.　A　high　rotational　speed　is　an　effective　method　to　reduce　leakage　in　large　pressure　difference　working　conditions.　(C)　2018　Elsevier　Ltd.　All　rights　reserved.

关键词：

High pressure single screw expander Inlet pressure Shaft efficiency High pressure energy recovery

作者机构：

[ 1 ] [Li, Guoqiang]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
[ 2 ] [Lei, Biao]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
[ 3 ] [Wu, Yuting]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
[ 4 ] [Zhi, Ruiping]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
[ 5 ] [Zhao, Yingkun]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
[ 6 ] [Guo, Zhiyu]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
[ 7 ] [Liu, Guangyu]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
[ 8 ] [Ma, Chongfang]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China
[ 9 ] [Li, Guoqiang]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Municipal, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
[ 10 ] [Lei, Biao]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Municipal, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
[ 11 ] [Wu, Yuting]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Municipal, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
[ 12 ] [Zhi, Ruiping]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Municipal, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
[ 13 ] [Zhao, Yingkun]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Municipal, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
[ 14 ] [Guo, Zhiyu]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Municipal, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
[ 15 ] [Liu, Guangyu]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Municipal, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China
[ 16 ] [Ma, Chongfang]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Municipal, Beijing Key Lab Heat Transfer & Energy Convers, Beijing 100124, Peoples R China

通讯作者信息：

[Lei, Biao]Beijing Univ Technol, Coll Environm & Energy Engn, MOE Key Lab Enhanced Heat Transfer & Energy Conse, Beijing 100124, Peoples R China

电子邮件地址：

leibiao@bjut.edu.cn

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