{"title":"利用新型混合纳米流体增强芯@壳纳米颗粒的传热性能","authors":"Iachachene Farida, Achab Louisa, Cheradi Hanane","doi":"10.1615/jenhheattransf.2024053149","DOIUrl":null,"url":null,"abstract":"In this numerical study, we investigate a novel hybrid consisting of core-shell nanoparticles with a ZnO@Ag structure, with the aim of enhancing heat transfer in non-uniformly heated systems. The numerical analysis spans a diverse set of Rayleigh numbers with a constant nanoparticle density of 0.1%. The results demonstrate significant improvements in Nusselt numbers, with ZnO@Ag nanoparticles, which exhibited a remarkable 20.15% enhancement. This enhancement is attributed to the even coating of materials with superior thermal properties, such as Ag, onto metallic oxides like ZnO, leading to increased overall thermal conductivity. These findings underscore the promising potential of core-shell nanoparticles for enhancing heat transfer in engineering applications, thereby motivating further research and optimization efforts.","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":"11 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancing Heat Transfer with New Hybrid Nanofluids type Core@Shell Nanoparticles\",\"authors\":\"Iachachene Farida, Achab Louisa, Cheradi Hanane\",\"doi\":\"10.1615/jenhheattransf.2024053149\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this numerical study, we investigate a novel hybrid consisting of core-shell nanoparticles with a ZnO@Ag structure, with the aim of enhancing heat transfer in non-uniformly heated systems. The numerical analysis spans a diverse set of Rayleigh numbers with a constant nanoparticle density of 0.1%. The results demonstrate significant improvements in Nusselt numbers, with ZnO@Ag nanoparticles, which exhibited a remarkable 20.15% enhancement. This enhancement is attributed to the even coating of materials with superior thermal properties, such as Ag, onto metallic oxides like ZnO, leading to increased overall thermal conductivity. These findings underscore the promising potential of core-shell nanoparticles for enhancing heat transfer in engineering applications, thereby motivating further research and optimization efforts.\",\"PeriodicalId\":50208,\"journal\":{\"name\":\"Journal of Enhanced Heat Transfer\",\"volume\":\"11 1\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Enhanced Heat Transfer\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1615/jenhheattransf.2024053149\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Enhanced Heat Transfer","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1615/jenhheattransf.2024053149","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Enhancing Heat Transfer with New Hybrid Nanofluids type Core@Shell Nanoparticles
In this numerical study, we investigate a novel hybrid consisting of core-shell nanoparticles with a ZnO@Ag structure, with the aim of enhancing heat transfer in non-uniformly heated systems. The numerical analysis spans a diverse set of Rayleigh numbers with a constant nanoparticle density of 0.1%. The results demonstrate significant improvements in Nusselt numbers, with ZnO@Ag nanoparticles, which exhibited a remarkable 20.15% enhancement. This enhancement is attributed to the even coating of materials with superior thermal properties, such as Ag, onto metallic oxides like ZnO, leading to increased overall thermal conductivity. These findings underscore the promising potential of core-shell nanoparticles for enhancing heat transfer in engineering applications, thereby motivating further research and optimization efforts.
期刊介绍:
The Journal of Enhanced Heat Transfer will consider a wide range of scholarly papers related to the subject of "enhanced heat and mass transfer" in natural and forced convection of liquids and gases, boiling, condensation, radiative heat transfer.
Areas of interest include:
■Specially configured surface geometries, electric or magnetic fields, and fluid additives - all aimed at enhancing heat transfer rates. Papers may include theoretical modeling, experimental techniques, experimental data, and/or application of enhanced heat transfer technology.
■The general topic of "high performance" heat transfer concepts or systems is also encouraged.