Article(id=1217836024521212850, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1217836019408360416, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202502026, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1740672000000, receivedDateStr=2025-02-28, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1768284334544, onlineDateStr=2026-01-13, pubDate=1764000000000, pubDateStr=2025-11-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768284334544, onlineIssueDateStr=2026-01-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768284334544, creator=13701087609, updateTime=1768284334544, updator=13701087609, issue=Issue{id=1217836019408360416, tenantId=1146029695717560320, journalId=1210938733613449225, year='2025', volume='54', issue='11', pageStart='1', pageEnd='168', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768284333326, creator=13701087609, updateTime=1768284453982, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1217836525543408117, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1217836019408360416, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1217836525543408118, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1217836019408360416, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=151, endPage=160, ext={EN=ArticleExt(id=1217836024785454024, articleId=1217836024521212850, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Influence of air flow field reconstruction inside and outside the air cooling unit on cooling performance of the system, columnId=1211002405299294959, journalTitle=Thermal Power Generation, columnName=Thermal energy science research, runingTitle=null, highlight=null, articleAbstract=
As the core of thermal power units, the operation efficiency of the direct air cooling system is significantly restricted by the geographical location of the power plant and the surrounding environmental parameters. Taking the direct air cooling system of a power plant as the prototype, a three-dimensional numerical model of the air cooling system and the surrounding buildings and mountain environment is established, and the composite wind prevention measures for the windward side of the air cooling island or the units with unfavorable heat transfer are proposed. The windproof measures and optimization mechanism of the direct air cooling system with strong applicability and good effect are explored, and the influence of air flow field reconstruction inside and outside the air cooling unit on the cooling performance of the direct air cooling system is analyzed. The results show that the internal and external wind-proof measures of the direct air-cooled unit can effectively improve the thermal performance of the unit. When the wind speed is 5 m/s, the large cross wall windshield has a good effect on improving the heat transfer performance of the air-cooled island. The frontal wind speed of the radiator increases by 0.24 m/s, and the surface temperature of the radiator reduces by 2.40 ℃. After the reconstruction of the air flow field inside and outside the air cooling unit, the average surface temperature of the radiator in the direct air cooling system reduces by 5.77 ℃, and the back pressure reduces by 2.92 kPa. The reconstruction of the air flow field inside and outside the air cooling unit can significantly improve the cooling effect of the direct air cooling system and improve the operating performance of the cold end system of the power station. In the future, the optimization design of the diversion device of the direct air cooling system can focus on the improvement of the uniformity of the flow field.
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直接空冷系统作为火电机组核心的热力循环末端,其运行效能受电厂地理位置及周边环境参数的显著制约。以某电厂直接空冷系统为原型,建立空冷系统及周边建筑物、山体环境的三维数值模型,提出针对空冷岛迎风侧或换热不利单元的复合防风措施,探究适用性强、效果佳的直接空冷系统防风措施与优化机制,分析空冷单元内外空气流场重构对直接空冷系统冷却性能的影响。结果表明:直接空冷单元内部和外部防风措施的设置可有效改善机组的热力性能,风速5 m/s时,大十字墙挡风对空冷岛换热性能改善效果较好,散热器迎面风速升高了0.24 m/s,散热器表面温度降低了2.40 ℃;空冷单元内外空气流场重构后,直接空冷系统散热器表面平均温度最高降低5.77 ℃,背压最高降低2.92 kPa。空冷单元内外空气流场重构可显著改善直接空冷系统冷却效果,提高电站冷端系统的运行性能,未来直接空冷系统导流装置的优化设计可聚焦于流场均匀性改善。
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, authorsList=李旋, 李禹江, 韩强, 周飞, 米玉鸿, 秦春营, 赵元宾)}, authors=[Author(id=1217836029130752192, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=lixuan@sdepci.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1217836029210443977, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836029130752192, language=EN, stringName=Xuan LI, firstName=Xuan, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.Shandong Electric Power Engineering Consulting Institute Co., Ltd., Jinan 250013, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1217836029340467413, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836029130752192, language=CN, stringName=李旋, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.山东电力工程咨询院有限公司,山东 济南 250013, bio={"content":"
李旋(1982),女,硕士,高级工程师,主要研究方向为电厂水工工艺设计,lixuan@sdepci.com。
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李旋(1982),女,硕士,高级工程师,主要研究方向为电厂水工工艺设计,lixuan@sdepci.com。
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1.山东电力工程咨询院有限公司,山东 济南 250013)])]), Author(id=1217836029436936412, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1217836029525016802, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836029436936412, language=EN, stringName=Yujiang LI, firstName=Yujiang, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.Shandong Electric Power Engineering Consulting Institute Co., Ltd., Jinan 250013, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1217836029608902892, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836029436936412, language=CN, stringName=李禹江, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.山东电力工程咨询院有限公司,山东 济南 250013, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1217836028447080583, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, xref=1., ext=[AuthorCompanyExt(id=1217836028468052105, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028447080583, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Shandong Electric Power Engineering Consulting Institute Co., Ltd., Jinan 250013, China), AuthorCompanyExt(id=1217836028472246410, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028447080583, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.山东电力工程咨询院有限公司,山东 济南 250013)])]), Author(id=1217836029717954806, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1217836029902504199, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836029717954806, language=EN, stringName=Qiang HAN, firstName=Qiang, middleName=null, lastName=HAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.Shandong Electric Power Engineering Consulting Institute Co., Ltd., Jinan 250013, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1217836030003167500, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836029717954806, language=CN, stringName=韩强, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.山东电力工程咨询院有限公司,山东 济南 250013, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1217836028447080583, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, xref=1., ext=[AuthorCompanyExt(id=1217836028468052105, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028447080583, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Shandong Electric Power Engineering Consulting Institute Co., Ltd., Jinan 250013, China), AuthorCompanyExt(id=1217836028472246410, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028447080583, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.山东电力工程咨询院有限公司,山东 济南 250013)])]), Author(id=1217836030120608022, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1217836030351294754, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836030120608022, language=EN, stringName=Fei ZHOU, firstName=Fei, middleName=null, lastName=ZHOU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2.Jiangsu Guoxin Research Institute Co., Ltd., Nanjing 210005, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1217836030485512488, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836030120608022, language=CN, stringName=周飞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2.江苏省国信研究院有限公司,江苏 南京 210005, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1217836028627435667, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, xref=2., ext=[AuthorCompanyExt(id=1217836028635824277, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028627435667, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Jiangsu Guoxin Research Institute Co., Ltd., Nanjing 210005, China), AuthorCompanyExt(id=1217836028644212886, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028627435667, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.江苏省国信研究院有限公司,江苏 南京 210005)])]), Author(id=1217836030611341617, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1217836031953518906, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836030611341617, language=EN, stringName=Yuhong MI, firstName=Yuhong, middleName=null, lastName=MI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.Jiayuguan Hongsheng Electric Heating Co., Ltd., Jiayuguan 735100, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1217836032066765121, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836030611341617, language=CN, stringName=米玉鸿, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.嘉峪关宏晟电热有限责任公司,甘肃 嘉峪关 735100, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1217836028744876188, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, xref=3., ext=[AuthorCompanyExt(id=1217836028753264797, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028744876188, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Jiayuguan Hongsheng Electric Heating Co., Ltd., Jiayuguan 735100, China), AuthorCompanyExt(id=1217836028761653407, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028744876188, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.嘉峪关宏晟电热有限责任公司,甘肃 嘉峪关 735100)])]), Author(id=1217836032171622729, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1217836032301646162, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836032171622729, language=EN, stringName=Chunying QIN, firstName=Chunying, middleName=null, lastName=QIN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, 5, address=
4.Ningxia Power Investment Yongli Energy Co., Ltd., Yinchuan 751400, China
5.College of Nuclear Science and Energy Power, Shandong University, Jinan 250061, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1217836032389726553, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836032171622729, language=CN, stringName=秦春营, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, 5, address=
4.宁夏电投永利能源有限公司,宁夏 银川 751400
5.山东大学核科学与能源动力学院,山东 济南 250061, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1217836028895871141, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, xref=4., ext=[AuthorCompanyExt(id=1217836028916842664, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028895871141, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4.Ningxia Power Investment Yongli Energy Co., Ltd., Yinchuan 751400, China), AuthorCompanyExt(id=1217836028925231274, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836028895871141, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4.宁夏电投永利能源有限公司,宁夏 银川 751400)]), AuthorCompany(id=1217836029030088884, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, xref=5., ext=[AuthorCompanyExt(id=1217836029038477493, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836029030088884, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5.College of Nuclear Science and Energy Power, Shandong University, Jinan 250061, China), AuthorCompanyExt(id=1217836029046866102, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, companyId=1217836029030088884, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5.山东大学核科学与能源动力学院,山东 济南 250061)])]), Author(id=1217836032486195549, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, orderNo=6, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhyb@sdu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1217836032591053159, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, authorId=1217836032486195549, language=EN, stringName=Yuanbin ZHAO, firstName=Yuanbin, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
5, address=
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Geometric modelling of the air-cooled island and surrounding buildings, figureFileSmall=FgsUb2RKmeqWMgFHeBiZGQ==, figureFileBig=/boLgKtQbJSSutJkaOL1cQ==, tableContent=null), ArticleFig(id=1217836034054865334, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图1, caption=
空冷岛及周围建筑物几何模型, figureFileSmall=FgsUb2RKmeqWMgFHeBiZGQ==, figureFileBig=/boLgKtQbJSSutJkaOL1cQ==, tableContent=null), ArticleFig(id=1217836034243609023, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.2, caption=
The air-cooled island model, figureFileSmall=Lx+auaaneNLtdL4AD7fEEQ==, figureFileBig=BtyJe4J04+LlgFbk/Hfryg==, tableContent=null), ArticleFig(id=1217836034327495108, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图2, caption=
空冷岛模型, figureFileSmall=Lx+auaaneNLtdL4AD7fEEQ==, figureFileBig=BtyJe4J04+LlgFbk/Hfryg==, tableContent=null), ArticleFig(id=1217836034457518538, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.3, caption=
Schematic diagram of grid division, figureFileSmall=zVPAf18zCP0nBLqHFOx5Xw==, figureFileBig=tgaHTq77GM2tSX3rnleBdg==, tableContent=null), ArticleFig(id=1217836034574959055, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图3, caption=
网格划分示意, figureFileSmall=zVPAf18zCP0nBLqHFOx5Xw==, figureFileBig=tgaHTq77GM2tSX3rnleBdg==, tableContent=null), ArticleFig(id=1217836034675622353, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.4, caption=
Schematic diagram of the computational domain, figureFileSmall=yaeAAiSUO6s+WhhY8m2isQ==, figureFileBig=CqoP5dItrQ/UhL9p1NpSfw==, tableContent=null), ArticleFig(id=1217836034746925526, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图4, caption=
计算域示意, figureFileSmall=yaeAAiSUO6s+WhhY8m2isQ==, figureFileBig=CqoP5dItrQ/UhL9p1NpSfw==, tableContent=null), ArticleFig(id=1217836034818228699, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.5, caption=
Schematic layout of wind protection measures, figureFileSmall=6Q6B/UMo587fg7Jn2/c2Kw==, figureFileBig=+sS/2Qy/PRXrQFPSto9Ovg==, tableContent=null), ArticleFig(id=1217836034889531874, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图5, caption=
防风措施布置示意, figureFileSmall=6Q6B/UMo587fg7Jn2/c2Kw==, figureFileBig=+sS/2Qy/PRXrQFPSto9Ovg==, tableContent=null), ArticleFig(id=1217836034990195174, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.6, caption=
Cloud diagram of the flow-field distribution of the unit under the influence of the large cross-wall, figureFileSmall=cztyuJNok4J5e9KtMKtKfw==, figureFileBig=WccCA5P4ttYe2WtFFMPvCQ==, tableContent=null), ArticleFig(id=1217836035136995816, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图6, caption=
大十字墙作用下1号机组散热器风速分布云图, figureFileSmall=cztyuJNok4J5e9KtMKtKfw==, figureFileBig=WccCA5P4ttYe2WtFFMPvCQ==, tableContent=null), ArticleFig(id=1217836036407869937, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.7, caption=
Optimization of the porosity of the inclined vortex-elimination structure under peripheral conditions, figureFileSmall=BL/ft/kbMlC76pn6re1kLw==, figureFileBig=+YpXwqedUcbkXWXYroruYQ==, tableContent=null), ArticleFig(id=1217836036500144626, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图7, caption=
外围下倾斜消涡结构孔隙率优化, figureFileSmall=BL/ft/kbMlC76pn6re1kLw==, figureFileBig=+YpXwqedUcbkXWXYroruYQ==, tableContent=null), ArticleFig(id=1217836036584030712, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.8, caption=
Porosity optimization of large cross wall, figureFileSmall=mBXpPXQNhGLWKzJx/nPuvg==, figureFileBig=Kfp63bmiFo8fDL5WDhiG5w==, tableContent=null), ArticleFig(id=1217836036672111103, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图8, caption=
大十字墙孔隙率优化, figureFileSmall=mBXpPXQNhGLWKzJx/nPuvg==, figureFileBig=Kfp63bmiFo8fDL5WDhiG5w==, tableContent=null), ArticleFig(id=1217836036755997188, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.9, caption=
Cloud diagram of temperature distribution of the radiator with more/no windproof measures, figureFileSmall=2GIHwDZY2346Vcu7YLwJVg==, figureFileBig=rvhZNKe1tZjSRXIAcYyUXg==, tableContent=null), ArticleFig(id=1217836036839883274, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图9, caption=
多/无防风措施时散热器温度分布云图, figureFileSmall=2GIHwDZY2346Vcu7YLwJVg==, figureFileBig=rvhZNKe1tZjSRXIAcYyUXg==, tableContent=null), ArticleFig(id=1217836036932157963, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Fig.10, caption=
Cloud diagram of wind speed distribution above the radiator when there are more/no windproof measures, figureFileSmall=FkdLy17niKViCSYCsnS6IQ==, figureFileBig=YlWnzvtgZHKI0w/hMRfgAw==, tableContent=null), ArticleFig(id=1217836037053792785, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=图10, caption=
多/无防风措施时散热器上方风速分布云图, figureFileSmall=FkdLy17niKViCSYCsnS6IQ==, figureFileBig=YlWnzvtgZHKI0w/hMRfgAw==, tableContent=null), ArticleFig(id=1217836037150261781, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Tab.1, caption=
Operating parameters of the unit
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 数值 |
|---|
| 环境温度/℃ | 32 |
| 汽轮机排汽量/(kg·s–1) | 1 184 |
| 排汽焓/(kJ·kg–1) | 2 561.2 |
| 汽轮机排汽压力/kPa | 25 |
| 汽轮机排热量/MW | 758 |
| 散热量/MW | 758 |
), ArticleFig(id=1217836037234147866, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=表1, caption=
机组运行参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 数值 |
|---|
| 环境温度/℃ | 32 |
| 汽轮机排汽量/(kg·s–1) | 1 184 |
| 排汽焓/(kJ·kg–1) | 2 561.2 |
| 汽轮机排汽压力/kPa | 25 |
| 汽轮机排热量/MW | 758 |
| 散热量/MW | 758 |
), ArticleFig(id=1217836037318033953, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Tab.2, caption=
Validity verification
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 背压(32 ℃)/kPa | 背压(37 ℃)/kPa |
|---|
| 设计工况 | 26.12 | 32.30 |
| 模拟工况 | 26.56 | 31.14 |
| 相对误差 | 1.68% | 3.72% |
), ArticleFig(id=1217836037439668773, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=表2, caption=
有效性验证
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 背压(32 ℃)/kPa | 背压(37 ℃)/kPa |
|---|
| 设计工况 | 26.12 | 32.30 |
| 模拟工况 | 26.56 | 31.14 |
| 相对误差 | 1.68% | 3.72% |
), ArticleFig(id=1217836037523554856, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Tab.3, caption=
Influence of windproof measures on heat transfer performance of No.1 unit in air cooling system
, figureFileSmall=null, figureFileBig=null, tableContent=
| 防风措施 | 散热器迎面风速/(m·s–1) | 散热器表面温度/℃ | 温度降低幅度/℃ |
|---|
| 无防风措施 | 3.54 | 44.40 | 0 |
| 空冷单元均流 | 3.62 | 42.94 | 1.46 |
| 外围上倾斜消涡 | 3.55 | 44.47 | –0.07 |
| 外围下倾斜消涡 | 3.58 | 44.12 | 0.28 |
| 迎风侧挡风 | 3.53 | 44.62 | –0.22 |
| 大十字墙挡风 | 3.31 | 45.55 | –1.15 |
), ArticleFig(id=1217836037632606767, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=表3, caption=
防风措施对空冷系统1号机组换热性能的影响
, figureFileSmall=null, figureFileBig=null, tableContent=
| 防风措施 | 散热器迎面风速/(m·s–1) | 散热器表面温度/℃ | 温度降低幅度/℃ |
|---|
| 无防风措施 | 3.54 | 44.40 | 0 |
| 空冷单元均流 | 3.62 | 42.94 | 1.46 |
| 外围上倾斜消涡 | 3.55 | 44.47 | –0.07 |
| 外围下倾斜消涡 | 3.58 | 44.12 | 0.28 |
| 迎风侧挡风 | 3.53 | 44.62 | –0.22 |
| 大十字墙挡风 | 3.31 | 45.55 | –1.15 |
), ArticleFig(id=1217836037703909938, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Tab.4, caption=
The influence of windproof measures on the heat transfer performance of No.2 unit of air cooling system
, figureFileSmall=null, figureFileBig=null, tableContent=
| 防风措施 | 散热器迎面风速/(m·s–1) | 散热器表面温度/℃ | 温度降低幅度/℃ |
|---|
| 无防风措施 | 3.10 | 46.29 | 0 |
| 空冷单元均流 | 3.22 | 44.58 | 1.71 |
| 外围上倾斜消涡 | 3.11 | 46.31 | –0.02 |
| 外围下倾斜消涡 | 3.18 | 45.29 | 1.00 |
| 迎风侧挡风 | 3.09 | 47.00 | –0.71 |
| 大十字墙挡风 | 3.34 | 43.89 | 2.40 |
), ArticleFig(id=1217836037817156151, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=表4, caption=
防风措施对空冷系统2号机组换热性能的影响
, figureFileSmall=null, figureFileBig=null, tableContent=
| 防风措施 | 散热器迎面风速/(m·s–1) | 散热器表面温度/℃ | 温度降低幅度/℃ |
|---|
| 无防风措施 | 3.10 | 46.29 | 0 |
| 空冷单元均流 | 3.22 | 44.58 | 1.71 |
| 外围上倾斜消涡 | 3.11 | 46.31 | –0.02 |
| 外围下倾斜消涡 | 3.18 | 45.29 | 1.00 |
| 迎风侧挡风 | 3.09 | 47.00 | –0.71 |
| 大十字墙挡风 | 3.34 | 43.89 | 2.40 |
), ArticleFig(id=1217836037884265019, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Tab.5, caption=
The exhaust pressures of No.1 and No.2 units after the optimization of porosity of the inclined vortex - elimination structure
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 孔隙率/% |
|---|
| 0 | 20 | 40 | 60 |
|---|
| 1号机组排汽压力 | 20.77 | 20.81 | 20.76 | 20.76 |
| 1号机组排汽压力变化 | 0 | –0.04 | 0.01 | 0.01 |
| 2号机组排汽压力 | 21.34 | 21.31 | 21.29 | 21.30 |
| 2号机组排汽压力变化 | 0 | 0.03 | 0.05 | 0.04 |
), ArticleFig(id=1217836037959762495, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=表5, caption=
外围下倾斜消涡结构孔隙率优化1、2号机组排汽压力对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 孔隙率/% |
|---|
| 0 | 20 | 40 | 60 |
|---|
| 1号机组排汽压力 | 20.77 | 20.81 | 20.76 | 20.76 |
| 1号机组排汽压力变化 | 0 | –0.04 | 0.01 | 0.01 |
| 2号机组排汽压力 | 21.34 | 21.31 | 21.29 | 21.30 |
| 2号机组排汽压力变化 | 0 | 0.03 | 0.05 | 0.04 |
), ArticleFig(id=1217836038035259971, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Tab.6, caption=
The exhaust pressures of No.1 and No.2 units with large cross wall porosity optimization
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 孔隙率 |
|---|
| 0% | 20% | 40% | 60% |
|---|
| 1号机组排汽压力 | 21.47 | 21.35 | 21.17 | 21.12 |
| 1号机组排汽压力变化 | 0 | 0.12 | 0.30 | 0.35 |
| 2号机组排汽压力 | 20.66 | 20.85 | 20.99 | 21.06 |
| 2号机组排汽压力变化 | 0 | –0.19 | –0.33 | –0.40 |
), ArticleFig(id=1217836038110757446, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=表6, caption=
大十字墙结构孔隙率优化1、2号机组排汽压力对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 孔隙率 |
|---|
| 0% | 20% | 40% | 60% |
|---|
| 1号机组排汽压力 | 21.47 | 21.35 | 21.17 | 21.12 |
| 1号机组排汽压力变化 | 0 | 0.12 | 0.30 | 0.35 |
| 2号机组排汽压力 | 20.66 | 20.85 | 20.99 | 21.06 |
| 2号机组排汽压力变化 | 0 | –0.19 | –0.33 | –0.40 |
), ArticleFig(id=1217836038194643531, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Tab.7, caption=
Performance of No.1 unit with multi-windproof measures
, figureFileSmall=null, figureFileBig=null, tableContent=
| 防风措施 | 散热器迎面风速/(m·s-1) | 散热器表面温度/℃ | 排汽温度/℃ | 排汽温度变化/℃ | 排汽压力/kPa | 背压变化/kPa |
|---|
| 无防风措施 | 3.54 | 44.40 | 61.09 | 0 | 20.90 | 0 |
| 空冷单元均流+大十字墙优化 | 3.37 | 40.85 | 59.31 | 1.78 | 19.25 | 1.66 |
| 空冷单元均流+外围下倾斜+大十字墙优化 | 3.48 | 43.08 | 60.43 | 0.66 | 20.27 | 0.63 |
), ArticleFig(id=1217836038282723919, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=表7, caption=
多防风措施方案1号机组性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 防风措施 | 散热器迎面风速/(m·s-1) | 散热器表面温度/℃ | 排汽温度/℃ | 排汽温度变化/℃ | 排汽压力/kPa | 背压变化/kPa |
|---|
| 无防风措施 | 3.54 | 44.40 | 61.09 | 0 | 20.90 | 0 |
| 空冷单元均流+大十字墙优化 | 3.37 | 40.85 | 59.31 | 1.78 | 19.25 | 1.66 |
| 空冷单元均流+外围下倾斜+大十字墙优化 | 3.48 | 43.08 | 60.43 | 0.66 | 20.27 | 0.63 |
), ArticleFig(id=1217836038370804308, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=EN, label=Tab.8, caption=
Performance of No.2 unit with multi-windproof measures
, figureFileSmall=null, figureFileBig=null, tableContent=
| 防风措施 | 散热器迎面风速/(m·s–1) | 散热器表面温度/℃ | 排汽温度/℃ | 排汽温度变化/℃ | 排汽压力/kPa | 背压变化/kPa |
|---|
| 无防风措施 | 3.10 | 46.29 | 62.03 | 0 | 21.84 | 0 |
| 空冷单元均流+大十字墙优化 | 3.30 | 40.52 | 58.95 | 3.09 | 18.92 | 2.92 |
| 空冷单元均流+外围下倾斜+大十字墙优化 | 3.39 | 42.76 | 60.27 | 1.76 | 20.12 | 1.71 |
), ArticleFig(id=1217836038479856215, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1217836024521212850, language=CN, label=表8, caption=
多防风措施方案2号机组性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 防风措施 | 散热器迎面风速/(m·s–1) | 散热器表面温度/℃ | 排汽温度/℃ | 排汽温度变化/℃ | 排汽压力/kPa | 背压变化/kPa |
|---|
| 无防风措施 | 3.10 | 46.29 | 62.03 | 0 | 21.84 | 0 |
| 空冷单元均流+大十字墙优化 | 3.30 | 40.52 | 58.95 | 3.09 | 18.92 | 2.92 |
| 空冷单元均流+外围下倾斜+大十字墙优化 | 3.39 | 42.76 | 60.27 | 1.76 | 20.12 | 1.71 |
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