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Exploring dynamic response in a three-layer dome with non-homogeneous elastic core under a concentrated impact at its apex Contin. Mech. Thermodyn. (IF 2.6) Pub Date : 2024-05-14 Alexander Grigorenko, Petro Lugovyi, Sergii Orlenko, Kostiantyn Kotenko
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Swirl flow stability: thermodynamic analysis and experiments Contin. Mech. Thermodyn. (IF 2.6) Pub Date : 2024-05-10 František Maršík, Zdeněk Trávníček, Bernhard Weigand, Florian Seibold, Zuzana Antošová
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Comparative analysis of thermal interface materials for effective thermal management of electronic devices Exp. Heat Transf. (IF 3.5) Pub Date : 2024-05-07 Saddam Husain, Mohammad Asif, Khursheed Anwar Khan
Thermal interface materials (TIM) employed to electronic devices enhances interfacial heat dissipation and thermal contact conductance (TCC). This study compares the performance of TIMs (silicon gr...
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Modeling and FE simulation of coupled water diffusion and viscoelasticity in relaxation tests of polyamide 6 Contin. Mech. Thermodyn. (IF 2.6) Pub Date : 2024-05-08 Alexander Dyck, Leonhard Groß, Johannes Keursten, Loredana Kehrer, Thomas Böhlke
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Combustion performance of hydrogen fueled parallel wall-jet used for drag reduction in a supersonic combustor Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-08 Jingying Zuo, Jingjia Xue, Silong Zhang, Jianfei Wei, Xin Li, Naigang Cui, Wen Bao
Hydrogen fueled parallel wall-jet combustion is considered to be one of the most promising drag reduction technologies in supersonic combustors, researchers mainly focus on its drag reduction mechanism, while balancing its combustion efficiency and drag reduction performance is of great significance for engine performance and energy conservation. In this paper, combustion performance of hydrogen fueled
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Desirability-based optimization of dual-fuel diesel engine using acetylene as an alternative fuel Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-06 Van Giao Nguyen, Brijesh Dager, Ajay Chhillar, Prabhakar Sharma, Sameh M. Osman, Duc Trong Nguyen Le, Jerzy Kowalski, Thanh Hai Truong, Prem Shanker Yadav, Dao Nam Cao, Viet Dung Tran
The study examined the dual-fuel engine performance employing acetylene gas as primary fuel and diesel as pilot fuel. The engine's operational parameters were adjusted using the Box-Behnken design, and the results were recorded. The best operating settings were yielded as 81.25 % engine load, 4.48 lpm acetylene gas flow rate and the compression ratio were 18. At this optimized setting the BTE was 27
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Analysis of exergy and heat transfer in a tube fitted with flapped V-baffles Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-06 Nuthvipa Jayranaiwachira, Pongjet Promvonge, Paritkavin Tongyote, Sompol Skullong, Mahdi Erfanian Nakhchi
Vortex generator is a device that shows promise in generating streamwise vortices that can be utilized for boosting the rate of heat transmission inside a cooling/heating system with a relatively smaller penalty in terms of friction loss. The primary goal of the current research is to maximize the comparative Nusselt number ratio (/) to be as large as possible to lower the size of the system while
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Effect of temperature on the mechanical properties of aluminum polycrystal using molecular dynamics simulation Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-06 Peng Lin, Ali Basem, As'ad Alizadeh, Eissa N. Nasser, Mohammed Al-Bahrani, Choon Kit Chan, Nafiseh Emami
The initial temperature has a considerable effect on aluminum polycrystals' physical stability and mechanical performance, with the possibility to optimize their mechanical properties for practical applications. Thus, using a molecular dynamics technique, the effect of temperature on the mechanical properties of aluminum polycrystals is studied. Stress-strain curves, ultimate strength, and Young's
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Innovative configurations for spherical solar distillation: Ball rotation and preheating for improved productivity Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-04 Fadl A. Essa, Z.M. Omara, Ammar H. Elsheikh, S. Shanmugan, A.S. Abdullah, Mahmoud S. El-Sebaey
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An improved dynamic analytical model and the parameter sensitivity analysis of spherical stacking latent thermal energy storage devices Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-03 Shen Tian, Yujie Zhao, Lingling Tian, Shuangquan Shao, Suke Liu, Tieying Wang, Xiaodong Shi
Thermal energy storage technology plays an important role on improving energy usage flexibility for the end users. The spherical stacking latent thermal energy storage devices inherits the advantages of direct thermal energy usage efficiency and simplified practical applications that received widely attentions. However, due to dispersed and multi-layer structural arrangement, the non-ignorable dynamic
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Uncertainty quantification of exchange efficiency in membrane-based air-to-air energy exchanger cores: Repetitive manufacturing and experiments Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-03 Shunian Qiu, Yanjin Che, Yuan Chang, Zhechao Wang, Zhenhai Li
Air-to-air membrane-energy exchangers have been widely used in green buildings as passive energy-recovery technologies for energy conservation and carbon reduction. An air-to-air membrane-energy exchanger conserves building energy by forcing the indoor exhaust air and unconditioned fresh air to exchange heat and moisture. As a critical performance indicator, the energy-exchange efficiency is primarily
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Numerical investigation of heat transfer enhancement in magnetohydrodynamics ternary ferrofluids on nonlinear stretching sheet Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-03 Muhammad Ehsan Ullah, Muhammad Idrees, Shah Muhammad, Mohammad Shuaib
The current study examines the complex interaction between mass and thermal energy variations, considering factors including activation energy, chemical reactions, and thermal radiation across a nonlinear stretching sheet. The ternary nanofluid comprises titanium, single-walled carbon nanotubes, and multi-walled carbon nanotubes to improve the heat transfer characteristics of the fluidic system. Partial
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Condenser operating conditions effects on dielectric liquid boiling and condensation heat transfer in closed systems Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-03 Gabriel Parent, Omidreza Ghaffari, Yaser Nabavi Larimi, Julien Sylvestre
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Theoretical and numerical investigation of introduced errors in surface temperature measurements of pistons applied in internal combustion engine Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-03 Cheng Sun, Chao Li, Banglin Deng, Jing Yang, Lili Zhou
DMP Differences in Material Properties) often exists between temperature sensors and combustion chamber components of ICE (Internal Combustion Engine), resulting in IEs (Introduced Errors) in the temperature measuring process. In this paper, we present a comprehensive theoretical analysis of the correlation between introduced errors on chamber components and the DMP. The analysis process considers
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Eulerian multiphase technique for detailed investigation on hydro-thermal enhancement in a cooling microchannel using pulsating alumina nanofluid: A numerical simulation Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Saheed Adewale Adio, Adam Olatunji Muritala, Ayodeji Samuel Binuyo, Temitayo Oketola, Vasudeva Rao Veeredhi
This study explored the impact of pulsation on the hydro-thermal behavior of an interrupted microchannel heat sink. A homogeneous blend of AlO-water was employed as the coolant. The investigation considers the influence of varying amplitude, pulsation frequency and Reynolds number. Findings indicate that using pulsating flow instead of steady flow substantially improved the thermal efficiency of the
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Numerical investigation and comparison on thermal-hydraulic performance of H-type finned tube heat exchanger Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Junjie Zhou, Xinyu Xie, Songzhen Tang, Yanyan Xu, Xiuzhen Li
H-type finned tube heat exchangers have been widely used in boilers and waste heat recovery devices due to their advantages of wear resistance and anti-fouling. In order to improve the energy-saving effect, the flow and heat transfer characteristics of H-type finned tube heat exchangers with different tube bundle arrangements were studied. It was found that, at the same Re number, the column staggered
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A case study on effect of twisting technique on heat transfer characteristics in a twisted oval helical tube Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Mahdy Elsayed, Muhammad Sultan, Fahid Riaz, Manoj Kumar Agrawal, Mohammad Altaf, Nehad Ali Shah, B. Nageswara Rao, Li Zhang
Efficient transfer of energy is an important issue addressed by numerous scholars in the literature and various methods have been proposed for enhancing the heat transfer efficiency in heat exchangers. Among many different heat exchangers, helical tubes are one of the most prevalent types of heat exchangers which have many applications in industry. In a case study, effect of twisting technique on the
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Self-extinction characteristics of fire extinguishing induced by nitrogen injection rescue in an enclosed urban utility tunnel Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Guobin Cai, Xuezhao Zheng, Wenjing Gao, Jun Guo
Extensive studies have been conducted on effect of sealing ratio on combustion process and temperature field of pool fire, while still lacking emergency rescue research after the failure of the original fire extinguishing system. Therefore, a series of tests were carried out in a 1/3 reduced-scale tunnel to explore the nitrogen injection into the closed tunnel on the effectiveness of fire-fighting
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Influence of low air pressure on flame instability of methane buoyant laminar diffusion flames Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Jinfei Zhao, Shengfeng Luo, Xuehui Wang, Dan Zhao, Jian Wang
This work experimentally investigated the buoyancy induced flame instability of laminar diffuison flames under different sub-atmospheric pressures (20kPa–100 kPa) in a reduced pressure chamber. Circular nozzle with inner diameter of 8mm was used to produced the laminar diffuison flames, and methane as one of the most commonly used renewable energies, was selected as the studied fuel gas. In this work
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Effect of key structure parameters of passive pre-chamber on in-cylinder combustion processes and emissions within a gasoline engine Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Yang Lv, Shangsi Feng, Jing Luo, Qiuyu Liu, Lan Li, Zhe Kang
Due to increasingly strict global emission regulations and energy conservation policies, gasoline engines are facing significant challenges. Achieving high efficiency and ultra-low emissions in gasoline engines has become a critical technical challenge that requires attention. Pre-chamber (PC) Turbulent Jet Ignition (TJI) is a highly promising technology for improving thermal efficiency and reducing
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Optimal charge amount for semiconductor chiller applying eco-friendly refrigerant R-744 Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Joon-Hyuk Lee, Jung-Hoon Kim, In-Young Heo, Jung-In Yoon, Chang-Hyo Son, Jung-Wook Nam, Hyun Joong Kim, Seung-Yoon Cha, Sung-Hoon Seol
The refrigerants used to cool the heat generated in semiconductor production are Freons, which are now subject to regulation because of their high ozone depletion potential (ODP) and global warming potential (GWP). Therefore, R-744 is considered an eco-friendly refrigerant. This study experimentally analyzed the effect of the refrigerant charge amount based on the temperature discharged after cooling
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Williamson MHD nanofluid flow via a porous exponentially stretching sheet with bioconvective fluxes Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 M. Siva Sankari, M. Eswara Rao, Zill E. Shams, Salem Algarni, Muhammad Nadeem Sharif, Talal Alqahtani, Mohamed R. Eid, Wasim Jamshed, Kashif Irshad
The recent study concentrates on magnetohydrodynamics (MHD). Williamson fluid drifts over an exponentially extending sheet. The porous medium is also crucial to improving thermal efficiency. The flow pattern model considers the inspirations of Joule heating, heat generation, viscous dissipation, and thermal radiation. This study also comprises the activation energy, bio-convectional, and gyrotactic
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Effect of rectangular, triangular, and semi-circular hybrid nano phase change material chambers under permanent magnetic field on the stepped solar still efficiency: An experimental study Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Seyed Sina Adibi Toosi, Hamid Reza Goshayeshi, Iman Zahmatkesh, Issa Chaer, Soheil Salahshour, D. Toghraie
Water has been considered one of the most important human needs since the beginning of human existence. This experimental study investigates the impact of utilizing hybrid nanomaterials (FeO + Graphene oxide) in phase change material (NPCM) under consideration of magnetic field on the production of a uniquely designed stepped solar still. The major aim of this research is to compare three different
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A study on the impact of solar radiations and activation energy effects in existence of nanofluid over stretching solar sheets Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-05-01 Bilal Ahmad, Muhammad Idrees, Syed Asif Ali Shah, Kottakkaran Sooppy Nisar, Abdel-Haleem Abdel-Aty
In this paper, we study the effects of activation energy and solar radiation on expanding solar sheets, as well as non-Newtonian nanofluid dynamics, which are important in these applications and are driving efforts to find solutions to the world’s energy problems. We provide numerical solutions to physical flow problems by solving partial differential equations. We utilise the MATLAB-integrated bvp4c
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Investigating the performance improvement of lithium-ion battery cooling process using copper fins and phase change materials (PCMs) Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-30 Mohammed A. Alghassab
This study investigates utilizing phase change materials (PCMs) along with metallic fins for passive cooling of lithium-ion batteries. PCMs have low thermal conductivity, which is enhanced by incorporating copper or aluminum fins. Numerical simulations using ANSYS FLUENT's Solidification & Melting solver in an axisymmetric configuration are performed. PCM cooling outperforms air cooling, providing
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Investigation on efficient and clean combustion pre-injection strategy of a diesel/methanol dual direct-injection marine engine under full load Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-30 Yue Yu, Huabing Wen
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Experimental investigation of photothermal performance in nanofluid-based direct absorption solar collection for solar-driven water desalination Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-30 Abdul Sattar, Bai Bofeng, Faraz Fazal, Muhammad Farooq, Fahid Riaz, Ijaz Hussain, Muhammad Imran Khan
As the demand for energy continues to rise unabated, an examination of the constraints posed by finite fossil fuel reserves becomes crucial. There is need to explore and underscore the imperative shift towards renewable energy resources, where, solar energy is widely available and can readily be used in different applications, especially in water desalination applications. In the present research,
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Impact of turbine characteristics on low temperature organic Rankine cycles operating with zeotropic and azeotropic mixtures Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-30 Fuhaid Alshammari, Ibrahim Alatawi, Ahmed S. Alshammari
The urgent need to mitigate the environmental impacts of fossil fuel combustion has spurred interest in renewable energy sources for electricity generation, particularly solar organic Rankine cycles (ORCs). This study investigates the potential of fluid mixtures in low-temperature ORCs, focusing on a radial turbine. While fluid mixtures have shown promise for heat recovery in low-temperature applications
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Simulation analysis of thermal insulation performance of diesel engine piston based on PEO and La2Zr2O7 thermal barrier coating Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-30 Yuxuan Du, Chunguang Fei, Zuoqin Qian, Siwei Zhu, Zihao Shu, Kai Zhou
In this research, we explored the application of ‘thermal swing’ thermal barrier coatings (TBCs) in diesel engines, aiming to surpass the performance of conventional TBCs. Traditional TBCs often suffer from limitations like consistently high surface temperatures and a delayed response to sudden variations in cylinder temperatures, which adversely impact engine efficiency. To overcome these challenges
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Recent developments in the Darcy-Forchheimer model of magnetized tetra hybrid nanofluid activation energy/joule heating in a stenotic artery Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-30 Afraz Hussain Majeed, Ahmed Zubair Jan, Atif M. Alamri, Salman A. AlQahtani, Mohamed R. Ali, Ahmed S. Hendy
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A real-time solution method for three-dimensional steady temperature field of transformer windings based on mechanism-embedded cascade network Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-30 Yunpeng Liu, Qingxian Zhao, Gang Liu, Ying Zou, Shuqi Zhang, Ke Wang, Xiaolin Zhao
To enhance the computation efficiency and accuracy of three-dimensional steady temperature field of transformer windings, we propose a new non-invasive Reduced Order Model (ROM) based on a mechanism-embedded cascade network. Initially, a snapshot matrix is formed from the Full Order Model (FOM) and then combined with Proper Orthogonal Decomposition (POD) to extract key modal features that characterize
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Inconsistency between the micropolar theory and non-equilibrium thermodynamics in the case of polar fluids J. Non Equilib. Thermodyn. (IF 6.6) Pub Date : 2024-04-30 Pavlos S. Stephanou
The balance equation of angular momentum in anisotropic fluids includes a couple stress contribution, also responsible for an antisymmetric contribution to the force stress tensor. We herein derive all balance equations for the simplest anisotropic fluid, i.e., a polar fluid, using the GENERIC formalism of non-equilibrium thermodynamics. In doing so, we find that there is an inconsistency between the
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Capacity configuration and economic analysis of integrated wind–solar–thermal–storage generation system based on concentrated solar power plant Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-29 Ruishen Guo, Dongqiang Lei, Hantao Liu, Yanwen Guo, Hang Yin, Yue Lv, Zhifeng Wang
As the proportion of wind and photovoltaic power plants characterized by intermittency and volatility in the electric power system is increasing continuously, it restricts the development of renewable energy at a higher proportion and a larger scale. CSP has the dual functions of peak-regulating power supply and energy storage, which can provide important support for grid access and power regulation
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Thermal analysis of the water-based micropolar hybrid nanofluid flow comprising diamond and copper nanomaterials past an extending surface Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-28 Anwar Ali Aldhafeeri, Humaira Yasmin
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Parametric study on thermal performance augmentation of TiO2/water nanofluids flowing a tube contained with dual counter twisted-tapes Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-28 C. Thianpong, K. Wongcharee, K. Kunnarak, S. Chokphoemphun, S. Chamoli, S. Eiamsa-ard
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Effect of chemical reaction and activation energy on Riga plate embedded in a permeable medium over a Maxwell fluid flow Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 K. Vijayalakshmi, Ajmeera Chandulal, Hadil Alhazmi, A.F. Aljohani, Ilyas Khan
This study delves into the intriguing interplay between activation energy, chemical reactions, no-slip effects, and radiation on the flow dynamics of a Maxwell fluid over a Riga plate nestled in a permeable medium. By initially formulating partial differential equations, which are then transformed into a set of ordinary differential equations using adept similarity transformations, we embark on a numerical
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Examining the effect of water and glass surface temperature on the rate of generation and heat transfer in triangular double-slope single-basin solar still in Kerman province Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Mohammad Hemmat Esfe, Davood Toghraie
Freshwater is a fundamental ingredient and its shortage is a serious issue. High evaporation rates of some regions can be exploited for freshwater production using solar stills. Meanwhile, Kerman province in the south of Iran has a hot and dry climate and suffers from water shortages and drought. On the other hand, Iran has a lot of access to salt and open water and has a high evaporation capacity
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Thermal attributes of sodium alginate (Na.C6H7O6) based binary and ternary hybrid nanofluids under activation energy and induced magnetic field environment Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Shuguang Li, Yuchi Leng, Gulnaz Atta, Sohail Ahmad, Kashif Ali, Sahar Ahmed Idris, Hijaz Ahmad
Ternary hybrid nanofluids possess several potential applications in the modern science beyond just the heat transfer efficiency. A continuous research and advancements on binary and ternary hybrid nanofluids might lead towards new developments in many technological and scientific zones. Ongoing research interprets and distinguishes the novel attributes of the sodium alginate () based unary, binary
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Significance of heat generation and thermophoretic particle deposition in Marangoni convective driven boundary layer flow of cross nanofluid with activation energy Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Munawar Abbas, Nargis Khan, M.S. Hashmi, Reem K. Alhefthi, Mustafa Inc
The thermo-solutal Marangoni boundary layer flow has been studied because it has a number of real-world uses, such as drying silicon wafers, applying thin coats of paint or glue, employing adhesive in heat exchangers, and growing crystals in space. The physical phenomenon of Cross nanofluid flow in a porous medium with thermophoretic particle deposition and Marangoni convective flow is explored. Non-Newtonian
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Experimental investigation on the heat transfer performance of pulsating heat pipe with self-rewetting Fe3O4-nanofluid Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Zhenchuan Weng, Juan Du, Feng Jiao, Yuxiang Hong, Yongqing He, Chengyuan Wang
This paper conducted an experimental study on the heat transfer performance of pulsating heat pipe (PHP) under three different working fluids: ultrapure water, n-butanol self-rewetting fluid (SRWF), and self-rewetting FeO-nanofluid (SRNF). The effects of filling ratio (FR), heating power, and magnetic field are studied. The results mainly show that the PHP with SRNF under a magnetic field, the start-up
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Maximizing thermal and electrical efficiency with thermoelectric generators and hybrid photovoltaic converters: Numerical, economic, and machine learning analysis Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Haitham Osman, Loke Kok Foong, Binh Nguyen Le, Velibor Spalevic, Branislav Dudic, Goran Skataric
In this paper, we introduce an innovative thermoelectric, photovoltaic hybrid system and investigate its performance under various radiation intensities and heat transfer coefficients outside the cavity. Our findings reveal that the proposed system yields twice the power output compared to a traditional plate thermoelectric, photovoltaic hybrid system. Through economic analysis, we project a 45 % reduction
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A test rig for the validation of CFD simulations of a passenger vehicle under hood environment Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Alexey Vdovin, Tarun Kadri Sathiyan, Christophe Duwig, Ammar Hazim Saber
As part of global efforts to reduce greenhouse gas emissions, the automotive industry is moving towards the electrification of its fleet – including full electric and hybrid vehicles. Considering hybrid vehicles, the energy efficiency and thermal management of powertrains including IC engines remains an important contribution. In this regard, engineers need accurate tools to understand heat-transfer
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MHD flow of blood-based hybrid nanofluid through a stenosed artery with thermal radiation effect Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Issah Imoro, Christian John Etwire, Rabiu Musah
The MHD flow of a blood-based hybrid nanofluid with thermal radiation and stenosis effects is explored in this study. Gold (Au) and Copper (Cu) hybrid nanoparticles are assumed to be distributed in the blood. Relevant governing equations are established and appropriately normalized. The Caputo fractional-order derivative is used to convert the transient terms of normalized equations into time-fractional
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Transportation of melting heat in stratified Jeffrey fluid flow with heat generation and magnetic field Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Mamoona Muzammal, Muhammad Farooq, Hashim, Hammad Alotaibi
In current years, storage of energy is a challenging task for the scientists and researchers. So, they are interested to develop some extra ordinary techniques of energy storage. Thus, our main theme here is to focus on the latent heat energy (melting heat) which is more economical and sustainable. Transportation of melting heat in quadratic stratified Jeffrey fluid flow in the vicinity of stagnation
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Preparation and properties of low-temperature self-expanding foamed ceramics utilizing lepidolite mica ore and ceramic tile polishing waste Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Yali Hu, Cai Wu, Yani Lu, Jiafeng Li, Daopei Zhu
Foamed ceramics were prepared at temperatures of 1175 °C, 1200 °C, 1225 °C, 1250 °C, and 1275 °C using lepidolite mica ore, ceramic tile polishing waste, and fly ash as raw materials, with borax as a fluxing agent. The main source of the foaming material was determined as , followed by anorthite and iron oxide, based on the X-ray diffraction (XRD) patterns of the raw materials and the thermal analysis
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Enhanced thermal modeling of three-phase dry-type transformers Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Jônatas P. Américo, Jean V. Leite, Cristian F. Mazzola
This work presents an enhanced thermal modeling for dry-type three-phase transformers, addressing the heat exchange mechanisms through conduction, radiation, and convection. Additionally, an equivalent thermal network is proposed to analyze the thermal behavior of these transformers. The thermal model includes several improvements, such as the differentiated representation of the core and windings
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Dual-phase prediction model of passenger thermal sensation using facial thermal imaging and environmental factors Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-27 Xuejin Zhou, Zhihong Miao, Man Yuan, Kang Li, Huan Guo, Xianghong Lin, Yi Zeng, Ran Tu, Jinjin Zhong
The concept of passenger-centric design has become increasingly significant in the intelligent automotive industry. Enhancing in-cabin thermal comfort while maintaining energy efficiency is crucial, and to this end, we leverage real-time passenger thermal sensation as a basis for HVAC control strategies. This study introduces a non-invasive, dual-phase prediction model that evaluates passenger thermal
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Numerical investigation of the thermal-hydraulic performance of a novel parabolic trough wavy tubular receiver by using FMWNCT/oil-nanofluid coupled with fins Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-26 S.M.A. Rahman, Salah Issa, Abdul Ghani Olabi, Mohammad Ali Abdelkareem
This study employs a computational fluid dynamics (CFD) approach to assess the performance of a novel wavy profile tube receiver. It integrates rectangular fins and an Oil-based nanofluid, specifically utilizing Thermodyne GG-03 synthetic oil combined with Functionalized Multi-Wall Carbon Tubes (FMWNCT). The synthesis involves rigorous experimental procedures to characterize the thermophysical properties
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Microfluidic flow synthesis of Al2O3 nanofluids for efficient phase-change boiling heat transfer enhancement of electronic devices Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-26 Junsheng Hou, Junjie Wu, Xiong Zhao, Li Ma, Lei Huang, Yinan Qiu, Dongyu Li, Zihan Ding, Zhenzhen Chen, Jinjia Wei, Nanjing Hao
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Two-phase simulation of hydrothermal performance and entropy generation aspects of a biologically prepared nanofluid-cooled heat sink with helical Tesla valve-based microchannels Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-26 Amin Shahsavar, Mahan Hasani, As'ad Alizadeh
The continuous development of innovative cooling techniques is imperative for advancing electronic device performance, enhancing efficiency, and prolonging their operational reliability in an ever-evolving technological landscape. In this numerical investigation, the hydrothermal performance and entropy generation aspects of a heat sink featuring Tesla valve-base helical channels are explored using
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Sensitivity analysis of velocity field influence on condensers’ performance and parallel circuit design based on actual air velocity distribution Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-25 Chuangye Li, Changshuang Zhi, Jinbo Li, Rixin Li, Fufeng Zhao, Peng Yang, Yingwen Liu
Currently, most integral simulations of condensers are based on the assumption of uniform intake air, which differs from real scenarios and leads to imprecise circuit designs. To obtain the actual air velocity distribution and reflect its impacts in the model, a comprehensive methodological system is established in this study. The implementation involves employing the porous media model to simulate
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Experimental and simulation study on oscillating flow and heat transfer characteristics of the cooling gallery in steel pistons Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-25 Yang Liu, Jilin Lei, Baojian Wang, Xiwen Deng, Dongjun Sun, Hong Wang
To characterize the oscillating flow and heat transfer characteristics of the cooling gallery inside a steel piston, a visual experimental platform was designed and constructed. Based on experimental results, simulation models of the cooling gallery under calibration conditions were established, and the oscillating flow and heat transfer characteristics of different oil injection strategies were studied
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Simulation on paraffin melting enhancement in shell-tube phase change thermal storage equipment induced by natural convection Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-25 XiaoLong Wang, LingNing Zhang, Tian Mu, ShangYi Song, WenKe Zhang, LinHua Zhang, WenJun Lei, GuanYue Sun
To enhance the thermal performance of the shell-tube phase change thermal storage equipment, the transient two-dimensional mathematical models of the RT35 melting were established. The transient evolution of temperature and velocity distribution and the effect of the positions of the inner tube on the intensity of natural convection for the RT35 and the melting times were analyzed. The results showed
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Comparative analysis of single and paired metal hydrides based thermal energy storage system Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-25 Sofiene Mellouli, Faouzi Askri, Talal Alqahtani, Salem Algarni, Badr M. Alshammari, Lioua Kolsi
This study aims to determine which thermal energy storage (TES) system is most suited for a concentrated solar power (CSP) plant. The question is which the best TES system, whether utilizing a single metal hydride or employing dual metal hydrides with or without reaction heat recovery via phase change material (PCM). The authors noted that no studies have been conducted to address this question thus
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Theoretical analysis of Ellis fluid flow in two layers due to metachronal propulsion subject to heat and mass transfer: Application in biological function Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-24 Sidra Shaheen, Hulin Huang, Fuad A.M. Al-Yarimi, Muhammad Bilal Arain
This study uses a metaphor to describe the motion of cilia with heat and mass transfer, and it highlights the importance of research for understanding biological function. This research article depicts analysis of double-layer of cilia induced flow for non-Newtonian (Ellis fluid) with additional effects of thermal and concentration fields. The Ellis fluid model is considering as mucus present in Human
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Dynamics of magnetized viscous dissipative material of hybrid nanofluid with irregular thermal generation/absorption Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-24 Muhammad Yasir, S. Saleem, Masood Khan, Neyara Radwan
The intriguing thermophysical properties of nanoparticles have considerable potential in thermal transportation for engineering applications. The inclusion of solid nanoparticles in the base fluid raises the fluid's thermal conductivity, which improves thermal transfer characteristics. Thus, an analysis is performed by assuming the Tiwari and Das model, for the flow and energy transportation aspects
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A double-pass optical beam deflection instrument for the measurement of diffusion, thermodiffusion and Soret coefficients in liquid mixtures and its application to polymer analysis J. Non Equilib. Thermodyn. (IF 6.6) Pub Date : 2024-04-24 Roman Reh, Mareike Hager, Werner Köhler
We have developed a new double-pass optical beam deflection instrument for the measurement of diffusion, thermodiffusion and Soret coefficients in liquid mixtures. The increased sensitivity of the instrument results from a second passage of the readout laser beam through the Soret cell containing the sample. An elegant description of the total beam deflection is achieved by means of a transfer matrix
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Effect of heat generation and activation energy on MHD maxwell fluid with multiple slips Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-23 K. Sudarmozhi, D. Iranian, Hadil Alhazmi, Ilyas Khan, Ajmeera Chandulal, A.F. Aljohani, Abdoalrahman S.A. Omer, A. Singh
This research delves into Maxwell fluid flow's intricate fluid dynamics, as well as heat-mass transfer features over a porous horizontal plate. The investigation encompasses magnetohydrodynamics, heat generation, radiation, chemical reactions, and the influence of activation energy. Furthermore, the study integrates slip conditions for temperature, velocity, and concentration gradients at the interface
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Photothermal effects induced by laser radiation in a 2D axi-symmetric generalized thermoelastic semiconducting half space using MGL model Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-23 Ismail M. Tayel, Muqrin A. Almuqrin
In this paper, a novel model based on the strain-temperature rate-dependent theory is investigated to study the coupling influences of thermal, elastic, and plasma waves during the photothermal process in a 2D axi-symmetric semiconducting half space. The surface absorption technique is used to illuminate the surface of the medium by a laser beam whose temporal and spatial profiles are Gaussian, moreover
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Hydrothermal behaviour of hybrid nanofluid flow in a shell-and conical coil tube heat exchanger; numerical approach Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-23 Hossein Zolfaghary Azizi, Vahid Shokri, Seyed Hossein Hashemi Karouei
The present work considers a shell-and-coil heat exchanger, and the hybrid nanofluid's flow and heat transfer inside the proposed thermal system are numerically evaluated. The coil tube has a conical pattern and is oriented horizontally inside the shell. Three water-based hybrid nanofluids are considered here as heat transfer fluids. A commercial CFD code that uses the finite volume method performs