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Journal of Enhanced Heat Transfer最新文献

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Heatfunction Analytics of Conjugate Natural Convection Heat Transfer in Partitioned Enclosure Filled with Hybrid Nanofluid Under Magnetic Fields 磁场作用下填充混合纳米流体的隔板内共轭自然对流换热的热函数分析
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2023-01-01 DOI: 10.1615/jenhheattransf.2023046875
M. Waheed, C. Enweremadu
{"title":"Heatfunction Analytics of Conjugate Natural Convection Heat Transfer in Partitioned Enclosure Filled with Hybrid Nanofluid Under Magnetic Fields","authors":"M. Waheed, C. Enweremadu","doi":"10.1615/jenhheattransf.2023046875","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2023046875","url":null,"abstract":"","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75410358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PERFORMANCE IMPROVEMENT OF CIRCULAR PARABOLIC CONCENTRATING SOLAR COOKER USING NANO-MIXED BINARY SALT PHASE CHANGE MATERIAL 利用纳米混合二元盐相变材料改善圆形抛物面聚光太阳灶的性能
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2023-01-01 DOI: 10.1615/jenhheattransf.2023047906
C. Papade, Amarsingh Kanase-Patil
{"title":"PERFORMANCE IMPROVEMENT OF CIRCULAR PARABOLIC CONCENTRATING SOLAR COOKER USING NANO-MIXED BINARY SALT PHASE CHANGE MATERIAL","authors":"C. Papade, Amarsingh Kanase-Patil","doi":"10.1615/jenhheattransf.2023047906","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2023047906","url":null,"abstract":"","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81108754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental investigation of flow boiling parameters in a transverse grooved horizontal tube: CHF, pressure drop and heat transfer coefficient 横槽水平管内流动沸腾参数的实验研究:CHF、压降和换热系数
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2023-01-01 DOI: 10.1615/jenhheattransf.2023044387
Pravin Tank, A. Sridharan, Prabhu Sv
{"title":"Experimental investigation of flow boiling parameters in a transverse grooved horizontal tube: CHF, pressure drop and heat transfer coefficient","authors":"Pravin Tank, A. Sridharan, Prabhu Sv","doi":"10.1615/jenhheattransf.2023044387","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2023044387","url":null,"abstract":"","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79858186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Wave Tube Structure on the Comprehensive Performance of Supercritical Carbon Dioxide and Lead Bismuth Eutectic Heat Exchanger 波管结构对超临界二氧化碳铅铋共晶换热器综合性能的影响
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2023-01-01 DOI: 10.1615/jenhheattransf.2023048068
Shuhan Liu, X. Lei, Jian Liu, Qingjiang Liu
{"title":"Effect of Wave Tube Structure on the Comprehensive Performance of Supercritical Carbon Dioxide and Lead Bismuth Eutectic Heat Exchanger","authors":"Shuhan Liu, X. Lei, Jian Liu, Qingjiang Liu","doi":"10.1615/jenhheattransf.2023048068","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2023048068","url":null,"abstract":"","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84195441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comparative study on channel cooling enhancement by angled, parallel broken, and rhombus patterned ribs 斜肋、平行破碎肋和菱形肋增强通道冷却效果的比较研究
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2023-01-01 DOI: 10.1615/jenhheattransf.2023048771
Shaohua Han, Jiangjiang Xing, Runsheng Zhang, Tianyi Huo, Yu Song, Na An, Leping Zhou, Li Li, H. Zhang, Xiaoze Du
{"title":"A comparative study on channel cooling enhancement by angled, parallel broken, and rhombus patterned ribs","authors":"Shaohua Han, Jiangjiang Xing, Runsheng Zhang, Tianyi Huo, Yu Song, Na An, Leping Zhou, Li Li, H. Zhang, Xiaoze Du","doi":"10.1615/jenhheattransf.2023048771","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2023048771","url":null,"abstract":"","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79741409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THERMAL MANAGEMENT STRATEGY WITH PHASE CHANGE MATERIAL (PCM) CAPSULES FOR PULSED-POWER SOURCE CONTROLLER IN EXTREME OIL-WELL THERMAL ENVIRONMENT 基于相变材料胶囊的脉冲电源控制器在油井极端热环境中的热管理策略
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2023-01-01 DOI: 10.1615/jenhheattransf.2023045699
Junjie He, Shihong Ma, Qiuwan Wang, W.W.L. Chu
{"title":"THERMAL MANAGEMENT STRATEGY WITH PHASE CHANGE MATERIAL (PCM) CAPSULES FOR PULSED-POWER SOURCE CONTROLLER IN EXTREME OIL-WELL THERMAL ENVIRONMENT","authors":"Junjie He, Shihong Ma, Qiuwan Wang, W.W.L. Chu","doi":"10.1615/jenhheattransf.2023045699","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2023045699","url":null,"abstract":"","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85367665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal Performance of Ionanocolloids in a Cubical Cavity with Internal Protrusions 具有内凸的立方体腔中离子胶体的热性能
4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2023-01-01 DOI: 10.1615/jenhheattransf.2023049550
Hariharan Ashok, Harish Rajan
{"title":"Thermal Performance of Ionanocolloids in a Cubical Cavity with Internal Protrusions","authors":"Hariharan Ashok, Harish Rajan","doi":"10.1615/jenhheattransf.2023049550","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2023049550","url":null,"abstract":"Ionic liquids have gained considerable attention as heat transfer fluids due to their unique properties, such as low vapor pressure and high thermal stability, which make them suitable for high-temperature applications. The purpose of this study is to examine the thermal behavior of ionanocolloids in a cubical cavity with an internal protruding heat source. The effect of Brownian motion and turbulence on the flow characteristics and thermal enhancement of ionic liquid dispersed with nanoparticles of silicon dioxide, aluminum oxide, and single-walled carbon nanotubes is investigated. The computations are performed by developing an unsteady, turbulent multiphase mixture model discretized by the finite difference method. The heater aspect ratio (ξ), Grashof number (Gr), and nanoparticle volume concentration (ϕ) are varied in the following range: 0.2 ≤ ξ ≤ 5, 106 ≤ Gr ≤ 1010 and 2% ≤ ϕ ≤ 6%. It is found that the velocity, kinetic energy, and Nusselt number are increasing functions of the heater aspect ratio and particle concentration. The coalescence of the nanoenhanced ionic liquid mixture is phenomenal for its lower heater aspect ratio. The carbon nanotube-dispersed ionanofluid mixture exhibited superior thermal performance for a turbulent Grashof number and enhanced the average Nusselt number of pure ionic liquid by 141.13%. The multiphase model is validated, and results are closer to the benchmark experimental findings.","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135561911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
HEAT-TRANSFER ENHANCEMENT OF A SOLAR PARABOLIC TROUGH COLLECTOR USING TURBULATORS AND NANOPARTICLES: A NUMERICAL STUDY 利用紊流和纳米颗粒增强太阳能抛物槽集热器的传热:数值研究
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2023-01-01 DOI: 10.1615/jenhheattransf.2022045462
Usman Allauddin, Muhammad Ikhlaq, Tariq Jamil, Fahad Alvi, Hibtullah A. Hussain, Hussain Mustafa, Muhammad Hassan Azeem
{"title":"HEAT-TRANSFER ENHANCEMENT OF A SOLAR PARABOLIC TROUGH COLLECTOR USING TURBULATORS AND NANOPARTICLES: A NUMERICAL STUDY","authors":"Usman Allauddin, Muhammad Ikhlaq, Tariq Jamil, Fahad Alvi, Hibtullah A. Hussain, Hussain Mustafa, Muhammad Hassan Azeem","doi":"10.1615/jenhheattransf.2022045462","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2022045462","url":null,"abstract":"Solar energy harnessing devices exhibit promising potential for providing a significant portion of the energy requirement. Among these devices, the solar parabolic trough collector (PTC) is a well-renowned and effective technology. In recent times, a great deal of research has been done further improving the thermal performance of PTC systems. The current numerical study investigates the effect of modifications to the geometry of the absorber tube and the effect of nanoparticles on the thermal performance of PTC. A corrugated tube (CT), sinusoidal corrugated tube (SCT), the corrugated tube having a cylindrical insert (CI), star insert (SI), and increasing diameter rod insert (IDRI) are used to modify the geometry of the absorber tube. The corrugated tube is also analyzed with water-Al<sub>2</sub>O<sub>3</sub> and water-TiO<sub>2</sub> nanofluids at volume concentrations of 2%, 4%, and 6%. The results showed that the sinusoidal corrugated tube produced the best results with a value of Nusselt number (Nu) being 15.2% greater than simple corrugated absorber tube without incurring any significant increase in pressure. Moreover, the performance evaluation criterion (PEC) value is also found to be greater than that of simple corrugated geometry. The use of nanofluids as the heat-transfer fluid (HTF) led to an overall enhancement in the heat transfer coefficient h by as much as 20%.","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138531521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetothermal convection on the thermally stratified fluid layer by permanent magnets 永磁体对热分层流体层的磁热对流
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2022-04-01 DOI: 10.1615/jenhheattransf.2022041934
Masayuki Kaneda, Kengo Wada, Kensuke Nazato
{"title":"Magnetothermal convection on the thermally stratified fluid layer by permanent magnets","authors":"Masayuki Kaneda, Kengo Wada, Kensuke Nazato","doi":"10.1615/jenhheattransf.2022041934","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2022041934","url":null,"abstract":"The Magnetothermal convection can be induced for paramagnetic fluid in the presence of the temperature difference and the magnetic field. In this study, the convection is studied both experimentally and numerically for the thermally stratified fluid layer attained by heating the top wall and cooling the bottom wall. When a single block magnet is placed above the top hot wall, the convection is confirmed near the magnet edges. In the case of multiple magnets, the convection is observed near the magnet junction(s) since the local magnetic force becomes stronger than that at magnet edges. This effect depends on the number of magnets. A pair block magnet that has one junction enhances the convection the most and pair vortex flow is induced. In the case of three magnets, the maxima of the local Nusselt number near the magnet junctions are suppressed. This is because that the magnetothermal force becomes weak due to the low-temperature difference formed by the conflicting convection cells.","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138531530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heat transfer enhancement of a new single phase hybrid cooling scheme of micro-channel and jet impingement 微通道与射流碰撞单相混合冷却方案的强化传热研究
IF 2.3 4区 工程技术
Journal of Enhanced Heat Transfer Pub Date : 2022-03-01 DOI: 10.1615/jenhheattransf.2022041672
Yuming Guo, Liangliang Fan, Liang Zhao
{"title":"Heat transfer enhancement of a new single phase hybrid cooling scheme of micro-channel and jet impingement","authors":"Yuming Guo, Liangliang Fan, Liang Zhao","doi":"10.1615/jenhheattransf.2022041672","DOIUrl":"https://doi.org/10.1615/jenhheattransf.2022041672","url":null,"abstract":"With the increase of power density of electronic components, in order to prolong the lifetime, to develop the cooling schemes with high heat dissipation performance has attracted much attention. The hybrid cooling schemes, combing the merits of micro-channel and micro-jet have been widely studied in the past decades. However, there is no good solution to the dilemma of stagnation zone caused by multi jet which weakens the heat dissipation performance of cooling schemes. In this study, a new hybrid cooling scheme was proposed, introducing coolant by micro-channel to attenuate the stagnation zone, to improve heat transfer performance and heat flux of single-phase reached 233W/cm2. A test module was constructed and tested using the deionized water as the coolant. A superposition technique was developed further, which now could correlate the single-phase heat transfer data for a new hybrid cooling scheme successfully, with all data falling within 95% confidence band. These findings have an impact on the further development of efficient cooling technology.","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138531529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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