瞬态传热是电厂厚壁元件疲劳的主要因素

IF 0.8 Q4 THERMODYNAMICS
K. Wacławiak, J. Okrajni
{"title":"瞬态传热是电厂厚壁元件疲劳的主要因素","authors":"K. Wacławiak, J. Okrajni","doi":"10.24425/ATHER.2019.129549","DOIUrl":null,"url":null,"abstract":"The authors present a numerical study of a start-up of a boiler with a thick-walled element subjected to thermomechanical loading. The significance of calculations of real heat transfer coefficients has been demon-strated. Fluid dynamics, mechanical transient thermal and static structural calculations have been conducted in both separate and coupled modes. Strain-stress analyses prove that the effect of the heat transfer coefficient changing in time and place in comparison with a constant one as recom-mended by standards is the key factor of fatigue calculations.","PeriodicalId":45257,"journal":{"name":"Archives of Thermodynamics","volume":" ","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Transient heat transfer as a leading factor in fatigue of thick-walled elements at power plants\",\"authors\":\"K. Wacławiak, J. Okrajni\",\"doi\":\"10.24425/ATHER.2019.129549\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The authors present a numerical study of a start-up of a boiler with a thick-walled element subjected to thermomechanical loading. The significance of calculations of real heat transfer coefficients has been demon-strated. Fluid dynamics, mechanical transient thermal and static structural calculations have been conducted in both separate and coupled modes. Strain-stress analyses prove that the effect of the heat transfer coefficient changing in time and place in comparison with a constant one as recom-mended by standards is the key factor of fatigue calculations.\",\"PeriodicalId\":45257,\"journal\":{\"name\":\"Archives of Thermodynamics\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2023-07-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Archives of Thermodynamics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.24425/ATHER.2019.129549\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"THERMODYNAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of Thermodynamics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24425/ATHER.2019.129549","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"THERMODYNAMICS","Score":null,"Total":0}
引用次数: 2

摘要

本文对热机械载荷作用下厚壁元件锅炉启动过程进行了数值研究。说明了实际换热系数计算的意义。流体力学、力学瞬态热学和静力结构计算分别在独立和耦合模式下进行。应变-应力分析表明,与标准建议的恒定传热系数相比,随时间和地点变化的传热系数的影响是疲劳计算的关键因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Transient heat transfer as a leading factor in fatigue of thick-walled elements at power plants
The authors present a numerical study of a start-up of a boiler with a thick-walled element subjected to thermomechanical loading. The significance of calculations of real heat transfer coefficients has been demon-strated. Fluid dynamics, mechanical transient thermal and static structural calculations have been conducted in both separate and coupled modes. Strain-stress analyses prove that the effect of the heat transfer coefficient changing in time and place in comparison with a constant one as recom-mended by standards is the key factor of fatigue calculations.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Archives of Thermodynamics
Archives of Thermodynamics THERMODYNAMICS-
CiteScore
1.80
自引率
22.20%
发文量
0
期刊介绍: The aim of the Archives of Thermodynamics is to disseminate knowledge between scientists and engineers interested in thermodynamics and heat transfer and to provide a forum for original research conducted in Central and Eastern Europe, as well as all over the world. The journal encompass all aspect of the field, ranging from classical thermodynamics, through conduction heat transfer to thermodynamic aspects of multiphase flow. Both theoretical and applied contributions are welcome. Only original papers written in English are consider for publication.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信