Experimental Heat Transfer最新文献_第4页

Experiments and modeling of boiling heat transfer of GNP nanofluids with metallic elements 带有金属元素的 GNP 纳米流体沸腾传热的实验和建模

IF 3.5 3区工程技术

Experimental Heat Transfer Pub Date : 2023-12-30 DOI: 10.1080/08916152.2023.2298495

Linfeng Xiang, Yindong Song, Dongshu Yang, Ziyun Zhang, Yong Cui, Kambiz Vafai

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Experimental investigation and visualization of steam condensation heat transfer on horizontal conical surfaces with microgrooves 带微凹槽的水平锥面上蒸汽冷凝传热的实验研究与可视化

IF 3.5 3区工程技术

Experimental Heat Transfer Pub Date : 2023-12-27 DOI: 10.1080/08916152.2023.2298489

Leigang Zhang, Hao Li, Bo Xu, Zhenqian Chen, Guopei Li, Meng Ru

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Intensification of the rate of heat and mass transfer at the wall of a stirred tank reactor by integrating a helical coil turbulence promoter with the tank wall 通过将螺旋线圈湍流促进器与搅拌罐壁结合，提高搅拌罐反应器壁的传热和传质速率

IF 3.5 3区工程技术

Experimental Heat Transfer Pub Date : 2023-12-26 DOI: 10.1080/08916152.2023.2298494

F. Shokry, M. Abd Elfattah, M. H. Abdel-Aziz, H. A. Farag, G. H. Sedahmed, D. A. El-Gayar

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Investigating the influence of flexible flags on heat transfer through experimental analysis 通过实验分析研究了柔性旗子对传热的影响

IF 3.5 3区工程技术

Experimental Heat Transfer Pub Date : 2023-12-06 DOI: 10.1080/08916152.2023.2290259

Sinan Caliskan, Sertac Samed Seyitoglu

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Thermal characteristics of metal foamed flat plate with circular and elliptical impinging jets 圆形和椭圆形冲击射流金属泡沫平板的热特性

IF 3.5 3区工程技术

Experimental Heat Transfer Pub Date : 2023-12-03 DOI: 10.1080/08916152.2023.2290268

Pradeep Kumar Singh, Jaykumar Joshi, Santosh K. Sahu

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Investigation of aqueous alcohol solutions as working fluids in an ultra-thin vapor chamber 超薄蒸汽室中作为工作流体的酒精水溶液的研究

IF 3.5 3区工程技术

Experimental Heat Transfer Pub Date : 2023-11-20 DOI: 10.1080/08916152.2023.2282438

Arunjoy Baruah, John Mathew, Shankar Krishnan

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Thermal performance experimental study of a serrated micro-groove ultra-thin aluminum flat heat pipe under different heater locations 锯齿状微槽超薄铝平板热管在不同加热器位置下的热性能实验研究

IF 3.5 3区工程技术

Experimental Heat Transfer Pub Date : 2023-11-16 DOI: 10.1080/08916152.2023.2282441

Guimin Ye, Guochong He, Yuxuan Sheng, Yuhang Chen, Qifei Jian

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Force-thermal analysis of large-area microchannel embedded cooling plate in improving thermal management of high-power density data centers 大面积微通道嵌入式冷却板在提高高功率密度数据中心热管理中的力热分析

3区工程技术

Experimental Heat Transfer Pub Date : 2023-10-24 DOI: 10.1080/08916152.2023.2273812

Jialiang Yang

{"title":"Force-thermal analysis of large-area microchannel embedded cooling plate in improving thermal management of high-power density data centers","authors":"Jialiang Yang","doi":"10.1080/08916152.2023.2273812","DOIUrl":"https://doi.org/10.1080/08916152.2023.2273812","url":null,"abstract":"ABSTRACTA thermal management method for data centers from the server level is proposed in this paper. This paper explores the high energy consumption of the server itself, proposing a principle of microchannel shape design for a cooling plate based on the principal stress lines (PSLs). Under the condition of a uniform load, the influence of the cross-sectional shape of the microchannel on the contact thermal resistance was found to be insignificant. From the analysis of cooling plate plane, the uniformity of the stress distribution of the microchannel determined the uniformity of the contact thermal resistance, which determined the heat dissipation ability. Experiments were developed to test and verify the cooling performance of the cooling plate as well as the performance differences with the microchannels along and away from the PSLs under deformation. It was concluded that compared with the conventional serpentine microchannel, the cooling performance of the cooling plate proposed in this paper was 4.5 ∘C reduction in average temperature. Furthermore, when the ultra-thin cooling plate was subjected to a uniform load distribution, the microchannel along a single PSL had the best stress distribution, that is, the contact thermal resistance had the least variation.KEYWORDS: Data centersprincipal stress linemicrochannel designheat dissipationthermal management NomenclatureTableDisplay TableDisclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":12091,"journal":{"name":"Experimental Heat Transfer","volume":"2 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135316090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Experimental study on heat transfer characteristics between particle flow and wall 颗粒流与壁面传热特性的实验研究

3区工程技术

Experimental Heat Transfer Pub Date : 2023-10-18 DOI: 10.1080/08916152.2023.2270609

Zhong-Liang Fu, Ao-Yu Liu, Yong-Li Xiao, Rui-Feng Dou, You-Ping Zhang, Peng-Yuan Li, Guo-Feng Lou, Zhi Wen

{"title":"Experimental study on heat transfer characteristics between particle flow and wall","authors":"Zhong-Liang Fu, Ao-Yu Liu, Yong-Li Xiao, Rui-Feng Dou, You-Ping Zhang, Peng-Yuan Li, Guo-Feng Lou, Zhi Wen","doi":"10.1080/08916152.2023.2270609","DOIUrl":"https://doi.org/10.1080/08916152.2023.2270609","url":null,"abstract":"ABSTRACTThis study experimentally and numerically investigated the characteristics of heat transfer between particle flow and a cylindrical wall. The theoretical model of the heat transfer coefficient calculation was verified and modified according to experimental data. In the experimental scheme, the temperature at the axis of the cylinder under different conditions was measured to determine the effects of temperature, relative motion velocity, and cylinder diameter on the heat transfer coefficient between the particle flow and the cylindrical wall. Results revealed the benefits of using high temperature for increasing the heat transfer coefficient. The relative motion velocity between the wall and particles had no significant effect on the heat transfer coefficient. Furthermore, the change in the heat transfer coefficient was less than 10% in the range of relative velocity v = 0.03 to 0.12 m·s−1 between the wall and particles. The heat transfer coefficient almost independents on cylinder diameter under constant particle diameter conditions.KEYWORDS: Particle flowtheoretical heat transfer modeldiscrete element methodrelative motion velocitythermal radiation Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":12091,"journal":{"name":"Experimental Heat Transfer","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135883666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

The influence of a novel ribbed wave tape on the enhancement of heat transfer in a solar air heater operating in a transitional flow regime: an experimental study 新型肋波带对过渡流态太阳能空气加热器强化传热影响的实验研究

3区工程技术

Experimental Heat Transfer Pub Date : 2023-10-16 DOI: 10.1080/08916152.2023.2265208

Suvanjan Bhattacharyya, Devendra Kumar Vishwakarma, Manoj K. Soni

{"title":"The influence of a novel ribbed wave tape on the enhancement of heat transfer in a solar air heater operating in a transitional flow regime: an experimental study","authors":"Suvanjan Bhattacharyya, Devendra Kumar Vishwakarma, Manoj K. Soni","doi":"10.1080/08916152.2023.2265208","DOIUrl":"https://doi.org/10.1080/08916152.2023.2265208","url":null,"abstract":"ABSTRACTThe effect of a novel ribbed wave tape on the augmentation of heat transfer in a solar air heater operating in a transitional flow regime is experimentally examined. Three different wave ratios are used, and the tube is uniformly heated using heat fluxes while the Reynolds number varied from 521 to 10,194. The transition for plain tube begins at 2810 and ends at 3724. For tube with ribbed wavy tapes, transition begins early and ends at higher Reynolds number than plain tube. For 2 kW/m2 of heat flux, the transition for wavy tape having wave ratio 3 begins at Reynolds number 2589 while at heat flux of 4 kW/m2, the transition begins at Reynolds number 2745. The end of transition takes place at Reynolds number 3969 and 4139 for wave ratio 3 at heat fluxes 2 and 4 kW/m2, respectively. The length of transition decreases with increase in the wave ratio at uniform heat flux. The average enhancement in Nusselt number for ribbed wavy tapes having wave ratio 3 at 4 kW/m2 heat flux was 262% and 85% for laminar and turbulent flow regime, respectively. Two empirical correlations were developed to predict the Nusselt number and friction factor for all the flow regimes.KEYWORDS: Turbulatorsribbed wavy tapestransition flow regimeNusselt numberfriction factor AcknowledgmentsI would like to sincerely acknowledge the funding provided under the Research Initiation Grant and the Additional Competitive Research Grant of BITS Pilani, Pilani Campus.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the Birla Institute of Technology and Science, Pilani.","PeriodicalId":12091,"journal":{"name":"Experimental Heat Transfer","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136113223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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