Article(id=1221425782895853675, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202204079, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1656086400000, revisedDateStr=2022-06-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1769140199636, onlineDateStr=2026-01-23, pubDate=1674576000000, pubDateStr=2023-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769140199636, onlineIssueDateStr=2026-01-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769140199636, creator=13701087609, updateTime=1769140199636, updator=13701087609, issue=Issue{id=1221425781750808678, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='1', pageStart='1', pageEnd='182', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769140199363, creator=13701087609, updateTime=1769145231708, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1221446888994292213, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1221446888994292214, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=45, endPage=55, ext={EN=ArticleExt(id=1221425783105568878, articleId=1221425782895853675, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Study on utilization characteristics of compound thermal system of waste heat of internal combustion engine and coal-fired unit, columnId=1211002405299294959, journalTitle=Thermal Power Generation, columnName=Thermal energy science research, runingTitle=null, highlight=null, articleAbstract=

In order to improve the energy utilization efficiency of high flexibility power generation system coupled with internal combustion engine and coal-fired unit, a new thermal system combined with the internal combustion engine and the coal-fired unit was proposed. By feeding the flue gas of internal combustion engine and the waste heat of cooling water into the thermal system of coal-fired generating unit, the coal consumption of coal-fired generating unit can be reduced. EBSILON software was used to model the composite system. Steam consumption rate and heat consumption rate of the coal-fired units were taken as evaluation indexes to analyze the thermal economy of the coal-fired unit under different composite schemes. The results show that, the heat consumption rate and steam consumption rate of the coal-fired unit can be significantly reduced by combining the waste heat of the internal combustion engine into the thermal system of the coal-fired unit. The closer the compound position of flue gas waste heat is to the boiler, the smaller the proportion of feed water and condensed water involved in flue gas heat exchange, and the lower the heat consumption rate and steam consumption rate of the unit. When one part of the flue gas waste heat is used to heat the high pressure heater feed water and the other part is used to heat the low pressure heater condensed water, more waste heat will be allocated to feed water, and the heat consumption rate and steam consumption rate of the unit wil decrease. After optimization, the heat consumption rate of the combustion engine and coal-fired unit combined thermal system can be reduced by 6.62% at most.

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为提升内燃机与燃煤机组耦合的高灵活性发电系统的能量利用效率,提出了内燃机与燃煤机组相复合的新型热力系统。通过将内燃机烟气和冷却水余热输入燃煤机组热力系统,从而降低燃煤机组发电煤耗率。采用EBSILON软件对复合系统进行建模,以燃煤机组汽耗率和热耗率为评价指标,分析了不同复合方案下燃煤机组的热经济性。结果表明:通过将内燃机余热复合进燃煤机组热力系统,可显著降低燃煤机组的热耗率和汽耗率;内燃机烟气余热复合位置越靠近锅炉,参与烟气换热的给水和凝结水比例越小,机组热耗率、汽耗率越低;当烟气余热一部分加热高压加热器给水,另一部分加热低压加热器凝结水时,分配到给水的余热越多,机组热耗率、汽耗率越低;优化后的内燃机与燃煤机组复合热力系统,热耗率最多可降低6.62%。

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周托(1979),男,博士,副研究员,主要研究方向为燃煤高效发电及余热回收技术,
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朱开轩(1998),男,硕士研究生,主要研究方向为内燃机与燃煤机组热耦合,

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朱开轩(1998),男,硕士研究生,主要研究方向为内燃机与燃煤机组热耦合,

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内燃机余热与燃煤机组复合热力系统的利用特性研究
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朱开轩 1 , 周托 2 , 王随林 1 , 吕俊复 2 , 张鹏飞 3 , 王顺超 3 , 王晓东 4
热力发电 | 热能科学研究 2023,52(1): 45-55
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热力发电 | 热能科学研究 2023, 52(1): 45-55
内燃机余热与燃煤机组复合热力系统的利用特性研究
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朱开轩1 , 周托2 , 王随林1, 吕俊复2, 张鹏飞3, 王顺超3, 王晓东4
作者信息
  • 1.北京建筑大学环境与能源工程学院,北京 100032
  • 2.清华大学能源与动力工程系,北京 100089
  • 3.电力规划总院有限公司,北京 100120
  • 4.华能太仓发电有限责任公司,江苏 太仓 215400
  • 朱开轩(1998),男,硕士研究生,主要研究方向为内燃机与燃煤机组热耦合,

通讯作者:

周托(1979),男,博士,副研究员,主要研究方向为燃煤高效发电及余热回收技术,
Study on utilization characteristics of compound thermal system of waste heat of internal combustion engine and coal-fired unit
Kaixuan ZHU1 , Tuo ZHOU2 , Suilin WANG1, Junfu LYU2, Pengfei ZHANG3, Shunchao WANG3, Xiaodong WANG4
Affiliations
  • 1.School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100032, China
  • 2.Department of Energy and Power Engineering, Tsinghua University, Beijing 100089, China
  • 3.Electric Power Planning & Engineering Institute Co., Ltd., Beijing 100120, China
  • 4.Huaneng Taicang Power Plant Co., Ltd., Taicang 215400, China
出版时间: 2023-01-25 doi: 10.19666/j.rlfd.202204079
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为提升内燃机与燃煤机组耦合的高灵活性发电系统的能量利用效率,提出了内燃机与燃煤机组相复合的新型热力系统。通过将内燃机烟气和冷却水余热输入燃煤机组热力系统,从而降低燃煤机组发电煤耗率。采用EBSILON软件对复合系统进行建模,以燃煤机组汽耗率和热耗率为评价指标,分析了不同复合方案下燃煤机组的热经济性。结果表明:通过将内燃机余热复合进燃煤机组热力系统,可显著降低燃煤机组的热耗率和汽耗率;内燃机烟气余热复合位置越靠近锅炉,参与烟气换热的给水和凝结水比例越小,机组热耗率、汽耗率越低;当烟气余热一部分加热高压加热器给水,另一部分加热低压加热器凝结水时,分配到给水的余热越多,机组热耗率、汽耗率越低;优化后的内燃机与燃煤机组复合热力系统,热耗率最多可降低6.62%。

燃煤机组  /  内燃机余热  /  复合热力系统  /  热耗率

In order to improve the energy utilization efficiency of high flexibility power generation system coupled with internal combustion engine and coal-fired unit, a new thermal system combined with the internal combustion engine and the coal-fired unit was proposed. By feeding the flue gas of internal combustion engine and the waste heat of cooling water into the thermal system of coal-fired generating unit, the coal consumption of coal-fired generating unit can be reduced. EBSILON software was used to model the composite system. Steam consumption rate and heat consumption rate of the coal-fired units were taken as evaluation indexes to analyze the thermal economy of the coal-fired unit under different composite schemes. The results show that, the heat consumption rate and steam consumption rate of the coal-fired unit can be significantly reduced by combining the waste heat of the internal combustion engine into the thermal system of the coal-fired unit. The closer the compound position of flue gas waste heat is to the boiler, the smaller the proportion of feed water and condensed water involved in flue gas heat exchange, and the lower the heat consumption rate and steam consumption rate of the unit. When one part of the flue gas waste heat is used to heat the high pressure heater feed water and the other part is used to heat the low pressure heater condensed water, more waste heat will be allocated to feed water, and the heat consumption rate and steam consumption rate of the unit wil decrease. After optimization, the heat consumption rate of the combustion engine and coal-fired unit combined thermal system can be reduced by 6.62% at most.

coal-fired power unit  /  internal combustion engine waste heat  /  composite thermal system  /  heat consumption rate
朱开轩, 周托, 王随林, 吕俊复, 张鹏飞, 王顺超, 王晓东. 内燃机余热与燃煤机组复合热力系统的利用特性研究. 热力发电, 2023 , 52 (1) : 45 -55 . DOI: 10.19666/j.rlfd.202204079
Kaixuan ZHU, Tuo ZHOU, Suilin WANG, Junfu LYU, Pengfei ZHANG, Shunchao WANG, Xiaodong WANG. Study on utilization characteristics of compound thermal system of waste heat of internal combustion engine and coal-fired unit[J]. Thermal Power Generation, 2023 , 52 (1) : 45 -55 . DOI: 10.19666/j.rlfd.202204079
  • 国家重点研发计划项目(2019YFE0125900)
  • 中国华能集团有限公司总部科技项目(HNKJ20-H50)
2023年第52卷第1期
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doi: 10.19666/j.rlfd.202204079
  • 首发时间:2026-01-23
  • 出版时间:2023-01-25
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  • 修回日期:2022-06-25
基金
National Key Research and Development Program(2019YFE0125900)
国家重点研发计划项目(2019YFE0125900)
Science and Technology Project of China Huaneng Group Co., Ltd.(HNKJ20-H50)
中国华能集团有限公司总部科技项目(HNKJ20-H50)
作者信息
    1.北京建筑大学环境与能源工程学院,北京 100032
    2.清华大学能源与动力工程系,北京 100089
    3.电力规划总院有限公司,北京 100120
    4.华能太仓发电有限责任公司,江苏 太仓 215400

通讯作者:

周托(1979),男,博士,副研究员,主要研究方向为燃煤高效发电及余热回收技术,
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https://castjournals.cast.org.cn/joweb/rlfd/CN/10.19666/j.rlfd.202204079
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2种不同金属材料的力学参数

Family
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Number of
genus
种数
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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