{"title":"多孔镍微结构表面的池沸腾传热特性","authors":"Kun-Man Yao, Mou Xu, Shuo Yang, Xi-Zhe Huang, Dong-chuan MO, Shu-Shen Lv","doi":"10.1615/jenhheattransf.2024051598","DOIUrl":null,"url":null,"abstract":"Pool boiling as a mechanism for effective heat dissipation in battery thermal management systems can considerably mitigate this risk. In this study, we electrochemically deposited one smooth nickel specimen and three specimens with a porous nickel-stacked structure. The four samples underwent microstructural characterization via scanning electron microscopy. Through visual experiments, we evaluated their wettability, and through pool boiling experiments, we tested their boiling heat transfer properties. Our findings suggest that samples incorporating a porous nickel structure consistently outperform unmodified samples regarding heat transfer efficiency. Specifically, samples with a current density of 0.5 A·cm-2 demonstrated the most optimal boiling heat transfer performance, evidenced by a 65.6% reduction in temperature at the onset of boiling, a 16.1% increase in critical heat flux density, and a 160.7% larger maximum heat transfer coefficient compared to the smooth nickel sample. The superior performance of samples with porous nickel structures can be attributed to the availability of a more significant number of nucleation sites. Additionally, specimens with a current density of 0.5 A·cm-2 displayed smaller micro-crystalline dendritic structures, an attribute that further favorably influenced their boiling heat transfer performance.","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":"21 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Pool boiling heat transfer characteristics of porous nickel microstructure surfaces\",\"authors\":\"Kun-Man Yao, Mou Xu, Shuo Yang, Xi-Zhe Huang, Dong-chuan MO, Shu-Shen Lv\",\"doi\":\"10.1615/jenhheattransf.2024051598\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Pool boiling as a mechanism for effective heat dissipation in battery thermal management systems can considerably mitigate this risk. In this study, we electrochemically deposited one smooth nickel specimen and three specimens with a porous nickel-stacked structure. The four samples underwent microstructural characterization via scanning electron microscopy. Through visual experiments, we evaluated their wettability, and through pool boiling experiments, we tested their boiling heat transfer properties. Our findings suggest that samples incorporating a porous nickel structure consistently outperform unmodified samples regarding heat transfer efficiency. Specifically, samples with a current density of 0.5 A·cm-2 demonstrated the most optimal boiling heat transfer performance, evidenced by a 65.6% reduction in temperature at the onset of boiling, a 16.1% increase in critical heat flux density, and a 160.7% larger maximum heat transfer coefficient compared to the smooth nickel sample. The superior performance of samples with porous nickel structures can be attributed to the availability of a more significant number of nucleation sites. Additionally, specimens with a current density of 0.5 A·cm-2 displayed smaller micro-crystalline dendritic structures, an attribute that further favorably influenced their boiling heat transfer performance.\",\"PeriodicalId\":50208,\"journal\":{\"name\":\"Journal of Enhanced Heat Transfer\",\"volume\":\"21 1\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-02-01\",\"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.2024051598\",\"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.2024051598","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}
Pool boiling heat transfer characteristics of porous nickel microstructure surfaces
Pool boiling as a mechanism for effective heat dissipation in battery thermal management systems can considerably mitigate this risk. In this study, we electrochemically deposited one smooth nickel specimen and three specimens with a porous nickel-stacked structure. The four samples underwent microstructural characterization via scanning electron microscopy. Through visual experiments, we evaluated their wettability, and through pool boiling experiments, we tested their boiling heat transfer properties. Our findings suggest that samples incorporating a porous nickel structure consistently outperform unmodified samples regarding heat transfer efficiency. Specifically, samples with a current density of 0.5 A·cm-2 demonstrated the most optimal boiling heat transfer performance, evidenced by a 65.6% reduction in temperature at the onset of boiling, a 16.1% increase in critical heat flux density, and a 160.7% larger maximum heat transfer coefficient compared to the smooth nickel sample. The superior performance of samples with porous nickel structures can be attributed to the availability of a more significant number of nucleation sites. Additionally, specimens with a current density of 0.5 A·cm-2 displayed smaller micro-crystalline dendritic structures, an attribute that further favorably influenced their boiling heat transfer performance.
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.