Article(id=1222493251769196909, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222493244286558340, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202210243, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1664553600000, receivedDateStr=2022-10-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769394704047, onlineDateStr=2026-01-26, pubDate=1692892800000, pubDateStr=2023-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769394704047, onlineIssueDateStr=2026-01-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769394704047, creator=13701087609, updateTime=1769394704047, updator=13701087609, issue=Issue{id=1222493244286558340, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='8', pageStart='1', pageEnd='196', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769394702264, creator=13701087609, updateTime=1769394819736, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222493737050169898, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222493244286558340, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222493737050169899, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222493244286558340, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=60, endPage=69, ext={EN=ArticleExt(id=1222493253291729287, articleId=1222493251769196909, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Research on thermodynamic characteristics and experimental verification of ORC oil-free scroll expander, columnId=1211002405299294959, journalTitle=Thermal Power Generation, columnName=Thermal energy science research, runingTitle=null, highlight=null, articleAbstract=

In order to study the thermodynamic characteristics of oil-free scroll expander in detail, leakage and thermodynamic model are established based on the first law of thermodynamics and the equation of energy and mass balance. Through the established leakage model, different working condition parameters are further changed to study the changing trend of the leakage in the scroll expander. Under the comprehensive consideration of the influence of heat transfer and leakage on the thermodynamic model, the Euler method is used to solve the established thermodynamic model, pressure, temperature and mass variation of the working medium with the orbiting angle of the main shaft during one operation cycle of the scroll expander are obtained and analyzed. Finally, an experiment platform is set up to test and verify the established thermodynamic model of the scroll expander, which can provide a certain reference for the performance analysis of the scroll expander.

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为详细研究无油涡旋膨胀机的热力学特性,基于热力学第一定律、能量和质量平衡方程建立了泄漏模型和热力学模型,并进一步改变不同的工况参数来研究涡旋膨胀机泄漏量的变化情况。在综合考虑传热与泄漏对热力学模型的影响下,采用欧拉法对建立的热力学模型进行求解,得到并分析了涡旋膨胀机在运行1个周期内工质的压力、温度、质量随主轴转角变化情况。最后,通过搭建试验平台,对所建立的涡旋膨胀机热力学模型进行试验验证,并为涡旋膨胀机的性能分析提供一定的借鉴作用。

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彭斌(1976),男,博士,教授,主要研究方向为涡旋机械和低温余热发电,

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彭斌(1976),男,博士,教授,主要研究方向为涡旋机械和低温余热发电,

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彭斌(1976),男,博士,教授,主要研究方向为涡旋机械和低温余热发电,

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有机朗肯循环无油涡旋膨胀机热力学特性研究及试验验证
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彭斌 , 杨宝坤 , 巩楷刚 , 张朋成 , 徐建伟 , 刘慧鑫
热力发电 | 热能科学研究 2023,52(8): 60-69
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热力发电 | 热能科学研究 2023, 52(8): 60-69
有机朗肯循环无油涡旋膨胀机热力学特性研究及试验验证
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彭斌 , 杨宝坤, 巩楷刚, 张朋成, 徐建伟, 刘慧鑫
作者信息
  • 兰州理工大学机电工程学院,甘肃 兰州 730000
  • 彭斌(1976),男,博士,教授,主要研究方向为涡旋机械和低温余热发电,

Research on thermodynamic characteristics and experimental verification of ORC oil-free scroll expander
Bin PENG , Baokun YANG, Kaigang GONG, Pengcheng ZHANG, Jianwei XU, Huixin LIU
Affiliations
  • School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou 730000, China
出版时间: 2023-08-25 doi: 10.19666/j.rlfd.202210243
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为详细研究无油涡旋膨胀机的热力学特性,基于热力学第一定律、能量和质量平衡方程建立了泄漏模型和热力学模型,并进一步改变不同的工况参数来研究涡旋膨胀机泄漏量的变化情况。在综合考虑传热与泄漏对热力学模型的影响下,采用欧拉法对建立的热力学模型进行求解,得到并分析了涡旋膨胀机在运行1个周期内工质的压力、温度、质量随主轴转角变化情况。最后,通过搭建试验平台,对所建立的涡旋膨胀机热力学模型进行试验验证,并为涡旋膨胀机的性能分析提供一定的借鉴作用。

有机朗肯循环  /  无油涡旋膨胀机  /  泄漏模型  /  热力学模型  /  试验验证

In order to study the thermodynamic characteristics of oil-free scroll expander in detail, leakage and thermodynamic model are established based on the first law of thermodynamics and the equation of energy and mass balance. Through the established leakage model, different working condition parameters are further changed to study the changing trend of the leakage in the scroll expander. Under the comprehensive consideration of the influence of heat transfer and leakage on the thermodynamic model, the Euler method is used to solve the established thermodynamic model, pressure, temperature and mass variation of the working medium with the orbiting angle of the main shaft during one operation cycle of the scroll expander are obtained and analyzed. Finally, an experiment platform is set up to test and verify the established thermodynamic model of the scroll expander, which can provide a certain reference for the performance analysis of the scroll expander.

ORC  /  oil-free scroll expander  /  leakage model  /  thermodynamic model  /  experiment verification
彭斌, 杨宝坤, 巩楷刚, 张朋成, 徐建伟, 刘慧鑫. 有机朗肯循环无油涡旋膨胀机热力学特性研究及试验验证. 热力发电, 2023 , 52 (8) : 60 -69 . DOI: 10.19666/j.rlfd.202210243
Bin PENG, Baokun YANG, Kaigang GONG, Pengcheng ZHANG, Jianwei XU, Huixin LIU. Research on thermodynamic characteristics and experimental verification of ORC oil-free scroll expander[J]. Thermal Power Generation, 2023 , 52 (8) : 60 -69 . DOI: 10.19666/j.rlfd.202210243
  • 国家自然科学基金项目(51675254; 51966009)
  • 国家重点研发计划项目(SQ2020YFF042098)
  • 甘肃省科技计划项目(20YF8GA057)
  • 甘肃省优秀博士生项目(22JR5RA235)
2023年第52卷第8期
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文章信息
doi: 10.19666/j.rlfd.202210243
  • 接收时间:2022-10-01
  • 首发时间:2026-01-26
  • 出版时间:2023-08-25
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出版历史
  • 收稿日期:2022-10-01
基金
National Natural Science Foundation of China(51675254; 51966009)
国家自然科学基金项目(51675254; 51966009)
National Key Research and Development Program(SQ2020YFF042098)
国家重点研发计划项目(SQ2020YFF042098)
Science and Technology Program of Gansu Province(20YF8GA057)
甘肃省科技计划项目(20YF8GA057)
Excellent Doctoral Program of Gansu Province(22JR5RA235)
甘肃省优秀博士生项目(22JR5RA235)
作者信息
    兰州理工大学机电工程学院,甘肃 兰州 730000
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2种不同金属材料的力学参数

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genus
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Number of
species
占总种数比例
Percentage of
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Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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