Comprehensive review of heat transfer and fluid flow characteristics of elliptical/oval twisted tubes

IF 2.6 3区工程技术 Q2 ENGINEERING, MECHANICAL

International Journal of Heat and Fluid Flow Pub Date : 2024-12-24 DOI:10.1016/j.ijheatfluidflow.2024.109639

Aliakbar Sheikhi Azizi , S. Morteza Mousavi , Kambiz Vafai , A.Ali Rabienataj Darzi

{"title":"Comprehensive review of heat transfer and fluid flow characteristics of elliptical/oval twisted tubes","authors":"Aliakbar Sheikhi Azizi , S. Morteza Mousavi , Kambiz Vafai , A.Ali Rabienataj Darzi","doi":"10.1016/j.ijheatfluidflow.2024.109639","DOIUrl":null,"url":null,"abstract":"<div><div>Heat exchangers have long been widely used tools in various industries. The close association of heat exchangers with energy consumption motivates engineers to strive for high thermal efficiency through modifications in size and cost minimization in the design process. Active, passive, and compound techniques are employed to enhance heat transfer. Twisted tubes and inserts fall within the category of passive swirl flow devices. These devices enhance heat transfer by generating secondary flows and disrupting the thermal boundary layer. Twisted tubes have the potential to further augment heat transfer and improve the efficiency of heat exchangers by enlarging the surface area, mixing fluid flow, and amplifying turbulence. This review specifically focuses on twisted tubes with elliptical/oval cross-sections. Geometrical parameters such as twist pitch (number of twists) and cross-section characteristics significantly influence heat transfer enhancement in twisted tubes. In this review, studies that involve the combination of twisted elliptical/oval tubes with other passive techniques, such as inserts (wire coils, twisted tapes), and nanofluids, as well as active techniques, are also discussed. This work aims to contribute to enhancing heat exchanger performance through the application of the twisted tube technique.</div></div>","PeriodicalId":335,"journal":{"name":"International Journal of Heat and Fluid Flow","volume":"112 ","pages":"Article 109639"},"PeriodicalIF":2.6000,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Heat and Fluid Flow","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0142727X24003643","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Heat exchangers have long been widely used tools in various industries. The close association of heat exchangers with energy consumption motivates engineers to strive for high thermal efficiency through modifications in size and cost minimization in the design process. Active, passive, and compound techniques are employed to enhance heat transfer. Twisted tubes and inserts fall within the category of passive swirl flow devices. These devices enhance heat transfer by generating secondary flows and disrupting the thermal boundary layer. Twisted tubes have the potential to further augment heat transfer and improve the efficiency of heat exchangers by enlarging the surface area, mixing fluid flow, and amplifying turbulence. This review specifically focuses on twisted tubes with elliptical/oval cross-sections. Geometrical parameters such as twist pitch (number of twists) and cross-section characteristics significantly influence heat transfer enhancement in twisted tubes. In this review, studies that involve the combination of twisted elliptical/oval tubes with other passive techniques, such as inserts (wire coils, twisted tapes), and nanofluids, as well as active techniques, are also discussed. This work aims to contribute to enhancing heat exchanger performance through the application of the twisted tube technique.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Heat and Fluid Flow 工程技术-工程：机械

CiteScore

5.00

自引率

7.70%

发文量

131

审稿时长

33 days

期刊介绍： The International Journal of Heat and Fluid Flow welcomes high-quality original contributions on experimental, computational, and physical aspects of convective heat transfer and fluid dynamics relevant to engineering or the environment, including multiphase and microscale flows. Papers reporting the application of these disciplines to design and development, with emphasis on new technological fields, are also welcomed. Some of these new fields include microscale electronic and mechanical systems; medical and biological systems; and thermal and flow control in both the internal and external environment.