Article(id=1221497396400411364, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221497393514730153, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202207157, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1658073600000, receivedDateStr=2022-07-18, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769157273625, onlineDateStr=2026-01-23, pubDate=1682352000000, pubDateStr=2023-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769157273625, onlineIssueDateStr=2026-01-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769157273625, creator=13701087609, updateTime=1769157273625, updator=13701087609, issue=Issue{id=1221497393514730153, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='4', pageStart='1', pageEnd='166', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769157272938, creator=13701087609, updateTime=1769157397933, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1221497917878223060, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221497393514730153, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1221497917878223061, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221497393514730153, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=90, endPage=98, ext={EN=ArticleExt(id=1221497396656263918, articleId=1221497396400411364, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Exergy analysis for a power generation system using thermosyphon-based trilateral cycle, columnId=1221467202000175547, journalTitle=Thermal Power Generation, columnName=Thermal energy and science research, runingTitle=null, highlight=null, articleAbstract=

By riser two-phase flow model and thermodynamic model, exergy analysis for the thermosyphon-based trilateral cycle (TTLC) proposed in the previous work by the authors is carried out to investigate the exergy performance of the system and the relevant influencing factors. The results show that, the system exergy efficiency varies in the range of 15%~30% with the increasing inlet temperature of heat source, which always helps to enhance the exergy efficiency. As the inlet temperature of cooling source decreases, the exergy efficiency changes from 23%to 27% with an optimum value. An optimization opportunity exists for the temperature difference of heater at the hot side, for example, a setting value of 4 ℃ seems to be a better choice. The riser exergy loss rate is a key factor to determine the system efficiency, especially under the condition where the temperature difference of the cycle is relatively larger. Decreasing temperature pinch point of the heater helps to decrease the internal and external exergy loss rates of the heater, but will lead to more exergy destructions in other processes. However, it exerts positive effects on system efficiency on the whole.

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通过上升管两相流模型和热力学模型,对前期工作中提出的重力式三角循环系统(TTLC)进行了㶲分析研究,以探究系统各环节的㶲损情况及其影响因素。结果表明:随热源温度提高,系统㶲效率在15%~30%变化,提高热源温度有利于增加系统㶲效率;随冷源温度降低,系统㶲效率在23%~27%变化并存在最优冷源温度;加热器热端温差也存在优化可能,其值为4 ℃是一个比较合理的选择;上升管㶲损率是影响系统㶲效率的主要因素,尤其是在系统温差较大的情况下;减小加热器夹点温差有利于降低加热器㶲损率和排热㶲损率,但会增加其他㶲损,总体上减小夹点温差有利于增加系统㶲效率。

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王厉(1976),男,博士,副教授,主要研究方向为低品位热能利用,
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储柱磊(1996),男,硕士研究生,主要研究方向为低品位热能利用,

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储柱磊(1996),男,硕士研究生,主要研究方向为低品位热能利用,

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储柱磊(1996),男,硕士研究生,主要研究方向为低品位热能利用,

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热虹吸三角循环发电系统㶲分析研究
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储柱磊 , 李斌 , 王厉
热力发电 | 热能科学研究 2023,52(4): 90-98
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热力发电 | 热能科学研究 2023, 52(4): 90-98
热虹吸三角循环发电系统㶲分析研究
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储柱磊 , 李斌, 王厉
作者信息
  • 浙江理工大学建筑工程学院,浙江 杭州 310018
  • 储柱磊(1996),男,硕士研究生,主要研究方向为低品位热能利用,

通讯作者:

王厉(1976),男,博士,副教授,主要研究方向为低品位热能利用,
Exergy analysis for a power generation system using thermosyphon-based trilateral cycle
Zhulei CHU , Bin LI, Li WANG
Affiliations
  • School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, China
出版时间: 2023-04-25 doi: 10.19666/j.rlfd.202207157
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通过上升管两相流模型和热力学模型,对前期工作中提出的重力式三角循环系统(TTLC)进行了㶲分析研究,以探究系统各环节的㶲损情况及其影响因素。结果表明:随热源温度提高,系统㶲效率在15%~30%变化,提高热源温度有利于增加系统㶲效率;随冷源温度降低,系统㶲效率在23%~27%变化并存在最优冷源温度;加热器热端温差也存在优化可能,其值为4 ℃是一个比较合理的选择;上升管㶲损率是影响系统㶲效率的主要因素,尤其是在系统温差较大的情况下;减小加热器夹点温差有利于降低加热器㶲损率和排热㶲损率,但会增加其他㶲损,总体上减小夹点温差有利于增加系统㶲效率。

三角循环  /  热虹吸效应  /  两相流  /  㶲分析

By riser two-phase flow model and thermodynamic model, exergy analysis for the thermosyphon-based trilateral cycle (TTLC) proposed in the previous work by the authors is carried out to investigate the exergy performance of the system and the relevant influencing factors. The results show that, the system exergy efficiency varies in the range of 15%~30% with the increasing inlet temperature of heat source, which always helps to enhance the exergy efficiency. As the inlet temperature of cooling source decreases, the exergy efficiency changes from 23%to 27% with an optimum value. An optimization opportunity exists for the temperature difference of heater at the hot side, for example, a setting value of 4 ℃ seems to be a better choice. The riser exergy loss rate is a key factor to determine the system efficiency, especially under the condition where the temperature difference of the cycle is relatively larger. Decreasing temperature pinch point of the heater helps to decrease the internal and external exergy loss rates of the heater, but will lead to more exergy destructions in other processes. However, it exerts positive effects on system efficiency on the whole.

trilateral cycle  /  thermosyphon effect  /  two-phase flow  /  exergy analysis
储柱磊, 李斌, 王厉. 热虹吸三角循环发电系统㶲分析研究. 热力发电, 2023 , 52 (4) : 90 -98 . DOI: 10.19666/j.rlfd.202207157
Zhulei CHU, Bin LI, Li WANG. Exergy analysis for a power generation system using thermosyphon-based trilateral cycle[J]. Thermal Power Generation, 2023 , 52 (4) : 90 -98 . DOI: 10.19666/j.rlfd.202207157
2023年第52卷第4期
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doi: 10.19666/j.rlfd.202207157
  • 接收时间:2022-07-18
  • 首发时间:2026-01-23
  • 出版时间:2023-04-25
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  • 收稿日期:2022-07-18
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    浙江理工大学建筑工程学院,浙江 杭州 310018

通讯作者:

王厉(1976),男,博士,副教授,主要研究方向为低品位热能利用,
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2种不同金属材料的力学参数

Family
属数
Number of
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种数
Number of
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占总种数比例
Percentage of
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Genus
种数
Number of
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Percentage of total
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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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