Yijie Chen , Changjiang Zhou , Haikang Chen , Jie Su
{"title":"Gear heat dissipation simulation and experiment under nanofluid lubrication","authors":"Yijie Chen , Changjiang Zhou , Haikang Chen , Jie Su","doi":"10.1016/j.icheatmasstransfer.2024.107689","DOIUrl":null,"url":null,"abstract":"<div><p>To improve the heat dissipation of gear churning oil, six types of nanofluids are prepared using 2% concentration Al<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, Fe<sub>3</sub>O<sub>4</sub>, TiO<sub>2</sub>, CuO and graphene oxide (GO) nanoparticles and using castor oil as the base lubricant oil. The method of applying nanoparticles to lubricating oil to improve gear tooth surface heat dissipation is proposed. The 3D dynamic mesh technology and the computational fluid dynamics–volume of fluid (CFD–VOF) model were adopted to investigate the lubricant flow characteristics and gear heat dissipation performance. The numerical model of gear heat dissipation is verified by thermal imaging infrared experiment, and the simulation results are in good agreement with the experimental results. The effects of gear speed and oil immersion depth on gear heat dissipation are analyzed. The best heat dissipation performance of the gears is achieved at an oil immersion depth of <em>l</em> = 1.5 h and 420 rpm, its thermal performance is increased by 163.95% compared to <em>l</em> = 0.5 h and 1200 rpm. Based on this optimal working condition, the heat dissipation is analyzed under different nanofluid lubrication. The results show that GO has the best heat dissipation performance with a 50% increase in heat transfer coefficient compared to pure castor oil.</p></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":null,"pages":null},"PeriodicalIF":6.4000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Communications in Heat and Mass Transfer","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0735193324004512","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
To improve the heat dissipation of gear churning oil, six types of nanofluids are prepared using 2% concentration Al2O3, SiO2, Fe3O4, TiO2, CuO and graphene oxide (GO) nanoparticles and using castor oil as the base lubricant oil. The method of applying nanoparticles to lubricating oil to improve gear tooth surface heat dissipation is proposed. The 3D dynamic mesh technology and the computational fluid dynamics–volume of fluid (CFD–VOF) model were adopted to investigate the lubricant flow characteristics and gear heat dissipation performance. The numerical model of gear heat dissipation is verified by thermal imaging infrared experiment, and the simulation results are in good agreement with the experimental results. The effects of gear speed and oil immersion depth on gear heat dissipation are analyzed. The best heat dissipation performance of the gears is achieved at an oil immersion depth of l = 1.5 h and 420 rpm, its thermal performance is increased by 163.95% compared to l = 0.5 h and 1200 rpm. Based on this optimal working condition, the heat dissipation is analyzed under different nanofluid lubrication. The results show that GO has the best heat dissipation performance with a 50% increase in heat transfer coefficient compared to pure castor oil.
期刊介绍:
International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.