边界层中的化学反应对整体传热传质系数的影响

IF 1 4区物理与天体物理 Q4 PHYSICS, APPLIED

High Temperature Pub Date : 2024-03-21 DOI:10.1134/s0018151x23040107

V. V. Mironov, M. A. Tolkach, V. V. Tlevtsezhev

{"title":"边界层中的化学反应对整体传热传质系数的影响","authors":"V. V. Mironov, M. A. Tolkach, V. V. Tlevtsezhev","doi":"10.1134/s0018151x23040107","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A method to analyze the influence of chemical reactions on heat-and-mass transfer in a reactive boundary layer has been suggested, and the influence of thermal effects on the overall heat-and-mass transfer coefficient has been estimated. It has been found that endothermal reactions in the boundary layer have a considerable effect on the overall heat-and-mass transfer coefficient. Taking into account the influence of thermal effects due to homogeneous reactions inside the boundary layer on convective thermal flux <span>\\({{\\dot {q}}_{\\lambda }}\\)</span> is equivalent to taking into account the heat of these reactions on the surface of a heat protection coating, that is, on the surface of a coked layer.</p>","PeriodicalId":13163,"journal":{"name":"High Temperature","volume":"51 1","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of Chemical Reactions in a Boundary Layer on the Overall Heat-and-Mass Transfer Coefficient\",\"authors\":\"V. V. Mironov, M. A. Tolkach, V. V. Tlevtsezhev\",\"doi\":\"10.1134/s0018151x23040107\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>A method to analyze the influence of chemical reactions on heat-and-mass transfer in a reactive boundary layer has been suggested, and the influence of thermal effects on the overall heat-and-mass transfer coefficient has been estimated. It has been found that endothermal reactions in the boundary layer have a considerable effect on the overall heat-and-mass transfer coefficient. Taking into account the influence of thermal effects due to homogeneous reactions inside the boundary layer on convective thermal flux <span>\\\\({{\\\\dot {q}}_{\\\\lambda }}\\\\)</span> is equivalent to taking into account the heat of these reactions on the surface of a heat protection coating, that is, on the surface of a coked layer.</p>\",\"PeriodicalId\":13163,\"journal\":{\"name\":\"High Temperature\",\"volume\":\"51 1\",\"pages\":\"\"},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2024-03-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"High Temperature\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1134/s0018151x23040107\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Temperature","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1134/s0018151x23040107","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}

引用次数: 0

摘要

摘要提出了一种分析化学反应对反应边界层传热传质影响的方法，并估算了热效应对整体传热传质系数的影响。研究发现，边界层中的内热反应对整体传热传质系数有相当大的影响。考虑到边界层内均匀反应引起的热效应对对流热通量的影响，相当于考虑到这些反应在防热涂层表面（即焦化层表面）的热量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Influence of Chemical Reactions in a Boundary Layer on the Overall Heat-and-Mass Transfer Coefficient

查看原文本刊更多论文

Influence of Chemical Reactions in a Boundary Layer on the Overall Heat-and-Mass Transfer Coefficient

Abstract

A method to analyze the influence of chemical reactions on heat-and-mass transfer in a reactive boundary layer has been suggested, and the influence of thermal effects on the overall heat-and-mass transfer coefficient has been estimated. It has been found that endothermal reactions in the boundary layer have a considerable effect on the overall heat-and-mass transfer coefficient. Taking into account the influence of thermal effects due to homogeneous reactions inside the boundary layer on convective thermal flux \({{\dot {q}}_{\lambda }}\) is equivalent to taking into account the heat of these reactions on the surface of a heat protection coating, that is, on the surface of a coked layer.

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

High Temperature 物理-物理：应用

CiteScore

1.50

自引率

40.00%

发文量

审稿时长

4-8 weeks

期刊介绍： High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.