Heat transfer performance of microchannels with round grooves and ribs based on field synergy principle and entropy production analysis

IF 2.5 3区工程技术 Q2 ENGINEERING, MECHANICAL Experimental Heat Transfer Pub Date : 2022-07-21 DOI:10.1080/08916152.2022.2103211

Tingbo Hou, Danmin Xu, Ning Li, Zhengchu Wang

引用次数: 4

Abstract

ABSTRACT Four kinds of microchannels with round grooves and ribs were designed: round grooves (round), round grooves and single–sided ribs (round–single), round grooves and odd-symmetric ribs (round–odd), and round grooves and doubly symmetric ribs (round–double). The effects of rib arrangement on the heat transfer performance of microchannels with round grooves and ribs were numerically investigated and then compared with the microchannel with no grooves or ribs. The heat transfer characteristics were analyzed and compared in accordance with the field synergy principle and entropy production. Results indicate that the heat transfer field of round and round–double microchannels exhibited the smallest synergy angle (α) and the best field synergy. The round–double microchannel produced the lowest entropy caused by heat transfer and had a minimal irreversible loss; thus, it exhibited the best heat transfer performance.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于场协同原理和熵产分析的圆槽肋微通道换热性能

摘要设计了四种具有圆形凹槽和肋的微通道：圆形凹槽（圆形）、圆形凹槽和单面肋（圆形-单个）、圆形槽和奇对称肋（圆形–奇数）以及圆形凹槽和双对称肋（圆–双）。数值研究了肋条排列对带有圆形槽和肋条的微通道传热性能的影响，并与没有槽和肋板的微通道进行了比较。根据场协同原理和熵产生原理，对其传热特性进行了分析和比较。结果表明，圆形和圆形双微通道的传热场表现出最小的协同角（α）和最佳的场协同作用。圆形-双微通道产生的热传递熵最低，不可逆损失最小；因此，它表现出最佳的传热性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Experimental Heat Transfer 工程技术-工程：机械

CiteScore

6.30

自引率

37.10%

发文量

审稿时长

>12 weeks

期刊介绍： Experimental Heat Transfer provides a forum for experimentally based high quality research articles and communications in the general area of heat-mass transfer and the related energy fields. In addition to the established multifaceted areas of heat transfer and the associated thermal energy conversion, transport, and storage, the journal also communicates contributions from new and emerging areas of research such as micro- and nanoscale science and technology, life sciences and biomedical engineering, manufacturing processes, materials science, and engineering. Heat transfer plays an important role in all of these areas, particularly in the form of innovative experiments and systems for direct measurements and analysis, as well as to verify or complement theoretical models. All submitted manuscripts are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. All peer reviews are single blind and submission is online via ScholarOne Manuscripts. Original, normal size articles, as well as technical notes are considered. Review articles require previous communication and approval by the Editor before submission for further consideration.