Heat Transfer Engineering最新文献

{"title":"Effect of Vortex Generator Placement and Nanofluids on Channel Flow Heat Transfer","authors":"Obula Reddy Kummitha, Siva Krishna Reddy Dwarshala, Karthik Chary, Venu Mangam, Harikrishna Chirala, Naga Malleswararao Battina","doi":"10.1080/01457632.2023.2268865","DOIUrl":"https://doi.org/10.1080/01457632.2023.2268865","url":null,"abstract":"AbstractIn this research, an attempt has been made to enhance the heat transfer for a plate-fin heat exchanger with the new arrangement of classic delta winglets used for vortex generators and compared the same with the existing literature. The computational domains are developed by dislocating delta winglets from their original position, so there is no additional pressure loss with flow geometry. All the flow domains are analyzed by computing the 3D Reynolds averaged Navier–Stokes equations using ANSYS Fluent. Two different working fluids are considered one is water and nanofluids (water with Aluminum oxide). Heat transfer characteristics are analyzed for different placements of winglets for both water and nanofluids. The plate-fin heat exchanger’s performance has been optimized with the optimum location of winglets and nanofluids from the analysis of numerical results. For the case of 0% nanofluids at 300 Reynolds number, Case 3 Nusselt number has been increased by 23.2% with a decrease in pressure drop of 17.7% with the dislocation of one winglet. It represents the enhancement of heat transfer. Disclosure statementThe authors declare no conflict of interest in this research work.Additional informationNotes on contributorsObula Reddy KummithaObula Reddy Kummitha is an Associate Professor at the Department of Mechanical Engineering, B V Raju Institute of Technology, Narsapur, India. He obtained his Doctorate and Master of Technology in Thermal Engineering from NIT Silchar in 2020 and 2013, respectively. For the past 7 years, he has been working on supersonic combustion, energy efficient buildings, heat transfer, and computational fluid dynamics.Siva Krishna Reddy DwarshalaSiva Krishna Reddy Dwarshala is an Assistant Professor at the Department of Mechanical Engineering, SRM Institute of Science and Technology, Chennai, India. He obtained his Doctorate from the Indian Institute of Technology, Bombay, in 2012. He has 6 years of industrial experience as a computational fluid dynamics engineer from 2011 to 2017. For the past 7 years, he has been working on supersonic combustion, energy efficient buildings, and heat transfer.Karthik CharyKarthik Chary is pursuing a Bachelor of Technology in the Department of Mechanical Engineering, B V Raju Institute of Technology, Narsapur, India. His research interests are heat transfer, fluid Mechanics and computational fluid dynamics.Venu MangamVenu Mangam is Professor and HOD at the Department of Mechanical Engineering, Vishnu Institute of Technology, Vishnupur, Bhimavaram, Andhra Pradesh, India. He has 18 years of teaching experience and has published many articles in peer-reviewed journals. He obtained his Doctorate from the Indian Institute of Technology, Kharagpur, in 2011.Harikrishna ChiralaHarikrishna Chirala is an Associate Professor and HOD of the Mechanical Engineering Department, Shri Vishnu Engineering College for Women(A), Bhimavaram. He has completed his Ph.D. in the area of metal forming processes.","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"70 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":"135883615","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}

{"title":"An optimization of grooves structure for thermal performance enhancement in microchannel heat sink","authors":"Pankaj Kumar, Vishnu Teja Mantripragada","doi":"10.1080/01457632.2023.2268868","DOIUrl":"https://doi.org/10.1080/01457632.2023.2268868","url":null,"abstract":"ABSTRACTIn the current work, the thermal performance of a grooved microchannel heat sink is evaluated at different offset positions inside the channel. For this purpose, the Eulerian – Eulerian approach-based mathematical model is developed and is numerically solved using the finite volume approach. Water is the base fluid to which alumina nanoparticles were added to enhance heat transfer. The effect of the Reynolds number (100-1000), particle diameter (10 nm- 50 nm), the number of grooves (10-80), offset between the grooves (0-1), and particle volume fraction (0% -5%) on the dimensionless pressure drop, Nusselt number, and coefficient of performance are investigated, and their impact on the microchannel's thermal characteristics is quantified. Most importantly, the microchannels with symmetric (Offset = 0) and asymmetric grooves (Offset ≠ 0) were compared, and it was found that offsetting the grooves has an insignificant effect on the microchannel performance. Furthermore, an empirical correlation is proposed to evaluate the coefficient of performance of both symmetric and asymmetric microchannels as a function of the output variables.DisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. Additional informationNotes on contributorsPankaj Kumar Pankaj Kumar is a Research Assistant Professor in the Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai-603203, Tamilnadu, India. He has been working in two-phase flow and heat transfer for the past ten years. He has published 16 research papers in international journals focusing on cavitation, two-phase flows, and flow past a circular cylinder.Vishnu Teja Mantripragada Vishnu Teja Mantripragada is an Assistant Professor in the Department of Fuel, Minerals and Metallurgical Engineering, IIT (ISM) Dhanbad, Jharkhand. India. He has been working in multiphase flows and computational fluid dynamics for the past seven years. He has published 12 research papers in international journals focusing on multiphase flows, transport phenomena, droplets, and bubbles.","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135968291","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}

{"title":"Comparison of flow boiling characteristics between minichannel and macrochannel in solar still-numerical study","authors":"None Thavamani Jayaraj, Pankaj Kumar","doi":"10.1080/01457632.2023.2268867","DOIUrl":"https://doi.org/10.1080/01457632.2023.2268867","url":null,"abstract":"ABSTRACTThe thermal performance of a rectangular minichannel has been estimated for various heat fluxes (1 kW/m2 to 2 kW/m2) and fluid mass flux rates (20 g/s to 40 g/s). The mixture model is used to determine two-phase flow characteristics in the mini-macro channel. The focus of the present work is to establish prime factors for the enhancement of vapour fractions inside the minichannel (< 3 mm) and macrochannel (> 3 mm). The fluid flow characteristics are explained with help of temperature difference (the wall side and water film side), friction factor, Nusselt number, evaporative thin film thickness, heat transfer coefficient and vapour fraction. Validation of current simulation with earlier research article shows good agreement. The friction factor value for the minichannel and macrochannel are 0.0004 and 0.0011, respectively. It is found that heat transfer is significantly more in macrochannel pipes compared with minichannels. By using the dimensional analysis, empirical correlation is developed for vapour fraction with dependent parameters such as channel diameter, fluid mass flow rate and heat flux the first time. The predicted correlation of vapour fraction and film thickness help to understand the pronounced effect of channel diameter on heat transfer.DisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. Additional informationNotes on contributorsThavamani Jayaraj Thavamani Jeyaraj is an Assistant Professor at the Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamilnadu. India. He obtained his Master of Engineering in Refrigeration and Air conditioning from Anna University in 2009. He is doing Doctorate in the area of influence parameter of solar distillation system. For the past 13 years he has been working in the heat transfer and refrigeration system field.Pankaj Kumar Pankaj Kumar is a Research Assistant Professor at the Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamilnadu. India. He has been working in the field of two-phase flow and heat transfer for the past 10 years. He has published more than 16 research papers in international journals focusing on cavitation, two phase flow, and flow past a circular cylinder.","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136062686","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}

{"title":"Performance Evaluation of Different Desiccant Matrix Materials Coated with Silica Gel","authors":"Laxmikant Yadav, Ajay Sharma, Ravi Pratap, Shubham Kumar Mishra, Ashutosh Kumar Verma","doi":"10.1080/01457632.2023.2268870","DOIUrl":"https://doi.org/10.1080/01457632.2023.2268870","url":null,"abstract":"ABSTRACTExcessive cooling of air is required in conventional air conditioning systems to reduce the humidity, leading to the development of desiccant wheel-based air conditioning systems. The desiccant wheel consists of desiccant material which is deposited on matrix material. In this study, aluminum, magnesium alloy, Teflon and fiberglass have been considered matrix materials of the desiccant wheel. A one-dimensional mathematical model has been developed to evaluate the effect of these matrix materials. The results show that fiberglass can be selected as a suitable matrix material for drying applications because it has maximum moisture removal (1.92 g/kg) and temperature difference (4.72 °C) at optimal rotational speed, which are desirable for drying. While aluminum can be selected as a suitable matrix material for air conditioning applications because, at the optimal rotational speed, it has lower maximum moisture removal (1.26 g/kg) and temperature difference (3.14 °C) as compared to other matrix materials. As moderate maximum moisture removal and lower temperature difference are the requirements for air conditioning. A similar trend of results has been also obtained for other parameters (volume ratio, regeneration velocity, regeneration temperature, etc.) of this study.DisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. AcknowledgementWe thank the reviewers for providing helpful comments on earlier drafts of the manuscript. We sincerely appreciate all valuable comments and suggestions, which helped us improve the manuscript's quality.Additional informationNotes on contributorsLaxmikant YadavLaxmikant Yadav is working as an Assistant Professor at the Department of Mechanical Engineering, National Institute of Technology Hamirpur, Himachal Pradesh, India. He obtained his Doctorate and Master of Engineering from NIT Kurukshetra. His research area includes desiccant dehumidification systems and refrigeration & air conditioning. He has ten years of teaching experience. Ajay SharmaAjay Sharma has completed his Master of Technology in Energy Technology under the guidance of Dr. Laxmikant Yadav in 2022 from National Institute of Technology, Hamirpur, Himachal Pradesh, India. Ravi PratapRavi Pratap has completed Master of Technology in Mechanical Engineering under the guidance of Dr. Laxmikant Yadav from Madan Mohan Malaviya University of Technology, Gorakhpur, U.P, India. Shubham Kumar MishraShubham Kumar Mishra has completed his Master of Technology in Mechanical Engineering (Thermal) from National Institute of Technology, Hamirpur, Himachal Pradesh, India, in 2022. A","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136209437","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}

{"title":"Experimental Investigation on Thermal Stability of Dual Particle Magnetorheological Fluid and Performance","authors":"Ashok Kumar Kariganaur, Hemantha Kumar, Arun Mahalingam","doi":"10.1080/01457632.2023.2268871","DOIUrl":"https://doi.org/10.1080/01457632.2023.2268871","url":null,"abstract":"ABSTRACTMagnetorheological fluid and their properties are essential in Magnetorheological applications. The present study aims to obtain the thermally stable carrier fluid for Magnetorheological damper application through thermogravimetric analyses of three base fluids for higher stability fluid to synthesize Magnetorheological fluid. Scanning electron microscopic images of particles were also tested for their morphology. Magnetorheological fluid samples with 10%, 15%, and 20% by volume were prepared in-house with a 3% calcium base additive (base fluid). Sedimentation and thermal conductivity studies reveal that increasing particle concentration increases the settling time and thermal conductivity. The flow properties show an increase in yield stress with an increase in particle concentration and magnetic fields. The application part of the fluid consists of Magnetorheological damper fabrication and dynamic testing of 20% volume concentration particles at 10mm amplitude, 2 Hertz frequency, and 0 Ampere and 0.5 Ampere currents, and the temperature of the system is captured with a K-type thermocouple. The results show an 8.2 °C rise at 0.5 Ampere with a 26.2% force decrease within 1000 cycles. The theoretical model based on the lumped parameter analysis predicts the temperature rise, similar to the experimental analysis with a 9.5% error.DisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. AcknowledgmentsThe authors acknowledge the Ministry of Human Resource Development and the Ministry of Road Transport and Highways, Government of India, for supporting this research through IMPRINT Project No. IMPRINT/2016/7330 titled \"Development of Cost-Effective Magnetorheological (MR) Fluid Damper in Two wheelers and Four Wheelers Automobile to Improve Ride Comfort and Stability\".Conflict of interest statementThere is no potential conflict of interest was reported by the authors.Funding StatementThis work was supported by Ministry of Human Resource Development and the Ministry of Road Transport and Highways, Government of India.Additional informationNotes on contributorsAshok Kumar KariganaurAshok Kumar Kariganaur is a research scholar in the Department of Mechanical Engineering at National Institute of Technology Karnataka, India. He graduated in Mechanical Engineering from National Institute of Engineering, Mysore, Karnataka (2012) and obtained his Master's degree in Thermal Engineering from University Vishweshwaraya College of Engineering, Bangalore, Karnataka (2016). His research interests include CFD, heat transfer in multiphase fluids, and experimental heat transfer. Curren","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136211188","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}

{"title":"Selected Papers from the 4th International Conference on Advances in Mechanical Engineering (ICAME2022)","authors":"Marimuthu Cheralathan, Chandrasekaran Selvam, Ramalingam Senthil","doi":"10.1080/01457632.2023.2268862","DOIUrl":"https://doi.org/10.1080/01457632.2023.2268862","url":null,"abstract":"\"Selected Papers from the 4th International Conference on Advances in Mechanical Engineering (ICAME2022).\" Heat Transfer Engineering, ahead-of-print(ahead-of-print), pp. 1–2 Disclosure statementThe authors declare there is no conflict of Interest at this study.Additional informationNotes on contributorsMarimuthu CheralathanMarimuthu Cheralathan is presently Professor and Head of the Department, Mechanical Engineering at SRM Institute of Science and Technology, Kattankulathur. He obtained his Ph.D. degree from Anna University, Chennai in 2007. He has three decades of experience in teaching and research. His area of interest includes thermal energy storage for heating and cooling applications, bio fuels and bio energy. He has published around ten patents and one has been granted. He has authored more than fifty articles in reputed journals. He is a member of SAE, SESI, IE(I), ISCA, and ISTE.Chandrasekaran SelvamChandrasekaran Selvam is an Assistant Professor at the Department of Mechanical Engineering, SRM Institute of Science and Technology, Chennai, India. He obtained his Doctorate from Anna University, Chennai, in nanofluid heat transfer. His research interests include enhancement of heat transfer using nanofluids, refrigeration and air-conditioning, thermal energy storage, thermal management of thermoelectric cooler and concentrated photovoltaics. He has published many articles in various reputed international journals.Ramalingam SenthilRamalingam Senthil is an Associate Professor at SRM Institute of Science and Technology, Chennai. He obtained his Ph.D. from the SRM Institute of Science and Technology. He has two decades of experience in teaching and research. He is working on solar energy conversion and storage technologies. He has delivered more than thirty expert talks on solar energy and thermal energy storage perspectives. He is a member of ISES, SESI, IE(I), IEEE, ISCA, and ISTE. He authored more than eighty articles in indexed (Scopus and Web of Science) journals. He is a reviewer in sixty-plus reputed international journals. Currently, he is featured in the Top 2% Most Cited Scientists in the World (Elsevier-Stanford University Report, Oct 2021).","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136063629","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}

{"title":"Impact of Linear Heating Profiles on Nanofluidic Convection in Enclosure","authors":"Abhinav Saha, Nirmalendu Biswas, Nirmal K. Manna, Koushik Ghosh","doi":"10.1080/01457632.2023.2268866","DOIUrl":"https://doi.org/10.1080/01457632.2023.2268866","url":null,"abstract":"ABSTRACTThe present study demonstrates the influence of non-uniform heating on the nanofluidic thermal convection in an enclosure by keeping the mean temperature of heating constant. The non-uniform heating is applied by varying the slope of the linear temperature profile from 0° to 60° at an interval of 15°. The investigation is executed numerically following the finite volume discretization technique. Two different cases are taken into consideration: Case A for linearly increasing temperatures, and Case B for linearly decreasing temperatures. The flow structures and heat transfer characteristics are studied for the Rayleigh number from 103 to 106 and the copper-water nanoparticle concentrations from 0 to 0.04, utilizing the streamlines, isotherms, and heatlines. The results reveal that the mean Nusselt number monotonically increases with a rise in slope for all linearly increasing temperature profiles. For the decreasing profiles (Case B), the Nusselt number decreases with a rise in the temperature slope for the lower Rayleigh number (103 and 104); however, a marginal increment is observed at the maximum profile angle for the higher Rayleigh number (105 and 106). This study provides findings helpful for designing thermal devices with the efficient utilization of heating sources.DisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. Additional informationNotes on contributorsAbhinav Saha Abhinav Saha is a Ph.D. student at Jadavpur University, Kolkata, India. He received his Master’s in Mechanical Engineering in 2012. His research includes computational heat transfer, buoyancy-driven flow of nanofluids, and transport in porous media. His research papers on thermal engineering have been published in international journals and conference proceedings.Nirmalendu Biswas Nirmalendu Biswas graduated from Jadavpur University and did Master’s in Mechanical Engineering from Jadavpur University. He received his Ph.D. in Engineering from Jadavpur University, Kolkata in 2016. He has more than ten years of industrial experience. Presently he is an Assistant Professor in the Department of Power Engineering, Jadavpur University, Kolkata, India since 2019. His research interests include heat transfer, microfluidics, multiphase-flow, energy storage, phase-change material, and bio-fluid mechanics. He has published a number of research papers in international journals and conference proceedings. He is an INAE fellow. He is a life member of ISHMT and IEI.Nirmal K. Manna Nirmal K. Manna is a Professor in the Department of Mechanical Engineering at Jadavpur University, Kolkata, India. He co","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136211019","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}

{"title":"Optimization of natural cooled heat sinks for panel mounted solid state relays","authors":"Palani Nainar, Karuppaiah Ramaiah, Dhanushkodi Ganesan","doi":"10.1080/01457632.2023.2268869","DOIUrl":"https://doi.org/10.1080/01457632.2023.2268869","url":null,"abstract":"ABSTRACTA solid state relay mounted at a cabinet wall dissipating 30W heat is considered in this analysis. A parallel plate mid-finned heat sink is designed for the relay to accommodate within 100 × 60 × 100 mm3 volume. A heatsink of 100 mm × 56 mm base size, 6 mm trunk thickness, 3 mm fin thickness, 6 mm fin spacing, and 102 mm length is attained by optimization. Further, it is optimized by trimming off the inefficient portion of the fin height, thereby attaining a taper heat sink without compromising the thermal performance. The appraisement of this trimming is characterized by the taper angle formed between the base of the heat sink and the line connecting all fin tips. The temperature profiles for heatsinks with 90°, 85° and 80° taper angle are presented in this paper for various power levels. The heat sink with 85° taper angle is optimum and the same is fabricated and tested experimentally. Thus, the parallel plate heat sink is optimized to improve the overall fin effectiveness and a 13% reduction in weight is achieved at 85° taper angle with a notional increment in temperature.DisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. Additional informationNotes on contributorsPalani Nainar Palani Nainar is orking as a Scientist at SAMEER-Centre for Electromagnetics, Chennai, an R&D institution under the Ministry of Electronics and Information Technology, Govt. of India. He received his Bachelor's Degree in Mechanical Engineering from Madurai Kamaraj University and a Master's Degree from the National Institute of Technology, Trichy. Since 2004, he has established facilities to evaluate, analyze and validate the thermal performance of electronic products in the Electronics Packaging Division at SAMEER.Karuppaiah Ramaiah Karuppaiah Ramaiah is working as a Research Scientist with Electronics Packaging Division in SAMEER-Centre for Electromagnetics, Chennai. He received his Bachelor's Degree in Mechanical Engineering from the University College of Engineering, Anna University, Dindigul. He is working in the area of design and development of thermal management systems for electronics packaging. He has secured knowledge in the use of CAD/CFD tools for thermal analysis of electronic systems.Dhanushkodi Ganesan Dhanushkodi Ganesan received his Bachelor of Engineering from Madurai Kamaraj University in the year 1997 and Master's Degree from Anna University in the year 2007 and joined SAMEER-Centre for Electromagnetics, Chennai. Since 1997 he has been working as a scientist with the Electronics Packaging Division. Currently doing his research in thermal management of electron","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135044830","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}

{"title":"Empirical Modeling and Meta-analysis of Heat Transfer in Plate Heat Exchangers","authors":"Yagnavalkya Mukkamala, Jaco Dirker","doi":"10.1080/01457632.2023.2260524","DOIUrl":"https://doi.org/10.1080/01457632.2023.2260524","url":null,"abstract":"AbstractPlate heat exchangers provide a compact and efficient alternative to bulky and spacious shell-and-tube heat exchangers. With numerous plates and flow passages, plate heat exchangers increase the flow transit time and enhance hot-fluid-to-cold fluid contact promoting higher heat transfer rates than conventional designs. Plate condensers and evaporators offer cost-effective, compact, and highly efficient alternatives to traditional surface condensers and evaporators. This article reports the empirical modeling and meta-analysis of over two-thousand heat transfer data compiled from thirty-five experimental investigations in the past three decades. The predictive correlations validated against an extensive database should be helpful to the industry and academia. Meta-analysis of the phase-change heat transfer data was statistically insignificant, and the current practice of deploying plate heat exchangers should be encouraged. AcknowledgmentsThe authors thank the University of Pretoria and the Vellore Institute of Technology for the research resources.Disclosure statementNo conflicts of interest are reported.Additional informationNotes on contributorsYagnavalkya MukkamalaYagnavalkya Mukkamala is a Professor in the School of Mechanical Engineering, Vellore Institute of Technology, Vellore, India. He received his Ph.D. in Mechanical Engineering from Vellore Institute of Technology in 2008 and his M.S. in Mechanical Engineering from Virginia Polytechnic Institute and State University in 1993. He has published over seventeen articles in various peer-reviewed journals and peer-reviewed conference articles. He has completed several funded projects as a principal investigator for the Government of India and numerous as a student investigator for the US Department of Energy and NASA. He has been cited over two hundred and ten times and has an h-index of over eight. His research interests include enhanced heat transfer, design of enhanced heat exchangers, and automotive aerodynamics.Jaco DirkerJaco Dirker is an Associate Professor in Mechanical Engineering at the University of Pretoria. He received his Ph.D. from Rand Afrikaans University (University of Johannesburg) in 2004. He has published over 44 peer-reviewed journals and 44 peer-reviewed conference articles. He has completed over five research projects, with the most recent project being funded by the Royal Society of the United Kingdom for over R 9 million (South African Rand). He is a clean energy and enhanced heat transfer specialist and has supervised several doctoral theses and post-doctoral scholars. He is a registered professional engineer at the Engineering Council of South Africa.","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135301299","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}

{"title":"Experimental Study on Indirect Liquid Cooling Performance of Metal 3D-Printed Cold Plates for Battery Thermal Management","authors":"Baris Burak Kanbur, Yi Zhou, Mun Hoe Seat, Wiebke Brix Markussen, Martin Ryhl Kærn, Fei Duan","doi":"10.1080/01457632.2023.2260525","DOIUrl":"https://doi.org/10.1080/01457632.2023.2260525","url":null,"abstract":"AbstractTwo new cold plates manufactured via metal 3D printing were experimentally investigated for thermal performance analysis in indirect liquid cooling operations; then they were compared to the traditional cold plates. Experiments were performed with different coolant inlet temperatures (15.7 °C and 24.5 °C) and ambient air velocities (0.5 m/s and 3 m/s) at tropical conditions; hereby, the impact of high dew point temperatures at tropics was also investigated. Body-centered cubic (BCC) and pillar elements were applied in the cooling cavity of the cold plates. The results showed that the target surface temperature in both BCC- and pillar-filled plate designs was maintained below the limits at the lower inlet temperature. However, at the higher inlet temperature, the temperature was only maintained below the limit when the ambient air velocity was 3 m/s. The convective heat transfer coefficient at the inlet temperature of 15.7 °C was found 1.5 and 2.5 times higher than the convective heat transfer coefficient value at the inlet temperature of 24.5 °C for the pillar- and BCC-filled plates, respectively. The performance evaluation criterion values were found in the range of 1.2 − 2.4, which depended on the operating conditions and were already higher than the referenced studies in the literature. Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis study is funded by the Ministry of Education Tier 1 RG154/19 (Singapore) and the Unfettered Research Grant of the Momental Foundation (USA). B.B. Kanbur was the Mistletoe Research Fellow (2020–2021) and sincerely thanks the Momental Foundation for this opportunity during the tough research period in pandemics. We greatly appreciate Mr. Lim Si Xian for his help to measure the surface roughness of the cold plate. The authors would also like to thank the support of the Energy Systems Lab in the School of Mechanical and Aerospace Engineering at Nanyang Technological University (Singapore), the Thermal Energy Section in the Department of Mechanical Engineering at the Technical University of Denmark (Denmark), and the Singapore Centre for 3D Printing (SC3DP) at Nanyang Technological University (Singapore). Notes on contributorsBaris Burak KanburBaris Burak Kanbur is a postdoctoral researcher at the Technical University of Denmark. His main research interest is thermal engineering applications at lab-, component-, or system-level with the aspects of heat transfer and thermodynamics by using experimental and computational methods. He worked as a research fellow at Nanyang Technological University until 2022 after receiving his Ph.D. degree from the same university in mid-2019.Yi ZhouYi Zhou is a research associate in Singapore Center for 3D Printing at Nanyang Technological University. He received his B.Eng. from University of Electronic Science and Technology of China before receiving M.Sc. and Ph.D. degrees from Nanyang Technological University.","PeriodicalId":12979,"journal":{"name":"Heat Transfer Engineering","volume":"302 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135549285","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}