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Heat extraction performance of the super-long gravity heat pipe applied to geothermal reservoirs of multi-aquifers Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-16 Zhibin Li, Jian Guo, Wenbo Huang, Juanwen Chen, Kunpeng Liu, Jiwen Cen, Qingshan Ma, Ang Li, Bin Wang, Fangming Jiang
The super-long gravity heat pipe (SLGHP) is a novel down-hole heat exchanger (DHE), which is in fast-developing and extremely suitable for deep-earth geothermal energy exploitation. The SLGHP itself has very high heat transfer coefficient, making the poor heat transfer capability of the surrounding geothermal formulations become the bottleneck constraining the overall performance of the SLGHP geothermal
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Analysis and design of module-level liquid cooling system for rectangular Li-ion batteries Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-16 Wenhua Wei, Zhi Luo, Shixin Qiao, Jiawei Zhai, Zhiguo Lei
To promote energy conservation and emission reduction, the electric vehicles (EVs) are developing rapidly. An effective battery thermal management system (BTMS) can extend the service life of batteries and avoid thermal runaway. In this study, a liquid-cooling management system of a Li-ion battery (LIB) pack (Ni-Co-Mn, NCM) is established by CFD simulation. The effects of liquid-cooling plate connections
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A developed convolutional neural network model for accurately and stably predicting effective thermal conductivity of gradient porous ceramic materials Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-16 Pan Liu, Zelin Han, Wantong Wu, Yujuan Zhao, Yan Song, Mengyu Chai
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Probabilistic design and optimization of thermal protection system with variable thickness based on non-uniform aerodynamic heating Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-16 Gui Lu, Zhaoxu Shi, Runlin Zhang, Yuanyuan Li, Kai Zhang
Thermal Protection System (TPS) is a critical component of space vehicles to protect them from damage by extreme aerothermal heating conditions. The uncertainty of the aerothermal heating conditions, including approaching velocities, atmospheric density, pressure, etc., significantly affects the aerothermal heating imposed on the TPS, vastly changing the initial design conditions. In this study, we
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Investigating maximum temperature lift potential of the adsorption heat transformer cycle using IUPAC classified isotherms Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-14 Sagar Saren, Sourav Mitra, Frantisek Miksik, Takahiko Miyazaki, Kim Choon Ng, Kyaw Thu
Adsorption heat transformer (AHT) cycle is capable of upgrading the low-grade waste heat to a higher temperature. The maximum temperature lift of the AHT cycle can represent its theoretical performance limit. However, such a metric is currently absent from the literature due to the scarcity of fundamental studies on the heat upgrading sorption cycles. Therefore, in the present study, three models are
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Theoretical analysis of the three-stage phase transition process of alkane droplet under supercritical conditions Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-14 Yaquan Ai, Han Wu, Timothy Lee, Chia-fon Lee, Xiangrong Li
With the development of heavy-duty diesel engines, the in-cylinder ambient conditions of the diesel engine are well above critical points of the main components of the diesel fuel. Therefore, significant changes arise in the phase transition process of the liquid fuels. However, the entire phase transition process of the liquid fuels in such supercritical environments is not well understood compared
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Capacitive sensing of frost growth dynamics on aluminum surfaces with different wettabilities Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-14 Mohammad Jalal Inanlu, Yashraj Gurumukhi, Pouya Kabirzadeh, Rishi Anand, Siavash Khodakarami, Vishal Viswanathan, Andrew Stillwell, Nenad Miljkovic
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Turbulent mixed convection in a horizontal cylindrical cavity with the off-lattice Boltzmann method Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-13 Sai Ravi Gupta Polasanapalli, Kameswararao Anupindi
Large-eddy simulations (LES) of turbulent mixed convection in a horizontal concentric cylindrical cavity when cylinders are subjected to rotations are investigated in the present study. A characteristic-based finite-difference off-lattice Boltzmann method solver is employed to investigate whether rotation enhances heat transfer in a horizontal concentric cylindrical cavity configuration where buoyancy
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Effect of nanocavity geometry on nanoscale nucleate boiling heat transfer Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-12 Wenbin Zhou, Yanke Hu, Hualin Ma, Yangbin Zou, Liang Yu, Guodong Xia
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Airfoil flow field for proton exchange membrane fuel cells enhancing mass transfer with low pressure drop Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-12 Guobin Zhang, Feibin Duan, Zhiguo Qu, Hongwei Bai, Jianfei Zhang
Optimal configuration of bipolar plate (BP) embedding flow field is of great significance in improving the power density and durability of proton exchange membrane fuel cells (PEMFCs). Inspired by the airfoil in aircraft dividing the airflow into two streams causing pressure difference, a novel airfoil flow field (AFF) is designed to enhance the mass transfer capacity in channel and across the rib
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Effect of startup modes on cold start performance of PEM fuel cells with different cathode flow fields Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-12 Wenzhe Zhang, Xingxiao Tao, Qifeng Li, Kai Sun, Rui Chen, Zhizhao Che, Tianyou Wang
Proton Exchange Membrane Fuel Cell (PEMFC) is widely recognized for its cleanliness and high efficiency, but is still facing challenges in cold environments. At low temperatures, the formation of ice and repeated freezing/thawing cycles may cause cell performance reduction and irreversible degradation. The cathode flow field of PEMFCs has a significant effect on the performance. In contrast to the
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3-D numerical simulation of the heat transfer of a fluidized bed with a horizontal tube bundle and Geldart D particles Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-12 J.I. Córcoles, M. Díaz-Heras, P. Domínguez Coy, J.A. Almendros-Ibáñez
In the present study, a numerical simulation is performed to analyse hydrodynamic and heat transfer of a fluidized bed in a vertical channel. As a novelty, method is applied to 3-D tube bundles immersed in a fluidized bed with Geldart D particles. The main results are compared and validated using the experimental results published in the literature.
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In situ monitoring of flip chip package process using thermal resistance network method and active thermography Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-12 Bin Zhou, Jianxin Qiao, Yunkang Su, Wentao Huang, Longqiu Li
Flip chip technology has been used extensively in microelectronic packaging due to the high density, fine spacing, smaller size. However, the size and spacing of the solder bumps are decreasing gradually, defect detection is getting more and more difficult. Thus, the growing demand for high reliability has generated considerable attention on the importance of defect inspection. This paper proposes
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The generalized telegraph equation with moving harmonic source: Solvability using the integral decomposition technique and wave aspects Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-12 T. Pietrzak, A. Horzela, K. Górska
The paper is devoted to study the frequency shift in the solution of the generalized telegraph equation with a moving point-wise harmonic source. This equation contains the nonlocality in time derivatives which is expressed by the memory functions and , where smears the second time-derivative and the first one. Moreover, in the Laplace domain we have . The generalized telegraph equation with an external
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New Jet impingement flow-scale sets wall approach, Proximity limits & wall-jet heat transfer Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-12 Avishai Oved, Barak Kashi, Herman D. Haustein
A new scale is here identified as dominant in laminar jet impingement flow and heat transfer, namely, the height of the stagnation zone, z. This being the point at which the jet “senses” the approaching wall, which corresponds to the location of marginal static pressure rise above the impinged plate. It is shown that this new profile-specific scale emerges from the virtual origin concept in Glauert's
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A limited evaporation model for flashing applications Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-12 Stanley John, Carlos F. Lange
Modelling of flashing phase change has been challenging due to it occurring at high pressures and temperatures. Unlike the more established flash boiling models, flash evaporation modelling is a work in progress and a reliable model applicable at different flow rates is much needed. In this work, a limited evaporation model is developed and tested for experimental cases from the Brookhaven National
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Critical review of vertical gas-liquid slug flow: An insight to better understand flow hydrodynamics' effect on heat and mass transfer characteristics Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-11 Shahriyar G. Holagh, Wael H. Ahmed
Slug flow is a dynamically complex two-phase flow pattern. A wide variety of industrial gas-liquid systems operate under slug flow conditions for not only flow transportation purposes, but also heat and mass transfer applications. In such systems, heat and mass transfer at the gas-liquid interface are strongly controlled via the hydrodynamic behavior of the flow, which is difficult to accurately predict
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Development of a modified thermal phase change model based on the interfacial area concentration determined by an interface reconstruction algorithm Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-11 Jie Fang, Tongyang Zhang, Jiaxin Zhang, Siyu Zhao, Yabo Wang, Jinfan Liu, Guobiao Cai
In order to enhance the physical basis of the mass transfer model in numerical simulation of gas-liquid direct contact condensation and improve the fidelity, a set of methods and models are developed. Based on the concept of the piecewise-linear interface calculation (PLIC), an interface reconstruction algorithm is proposed to calculate the interfacial area concentration in three-dimensional non-orthogonal
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Propagation dynamics of the thermal runaway front in large-scale lithium-ion batteries: Theoretical and experiment validation Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-11 Xuning Feng, Fangshu Zhang, Jing Feng, Changyong Jin, Huaibin Wang, Chengshan Xu, Minggao Ouyang
Large-scale lithium-ion batteries are favored in electric vehicles and energy storage stations; for instance, BYD blade batteries and CATL Kirin batteries are popular. A tiny defect will trigger thermal runaway from a local point towards the other parts of the battery, and the boundary between the failure region and the intact region is called the “thermal runaway front,” of which the dynamics are
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Multiple in-situ measurement of water transport in the bipolar plate of proton exchange membrane fuel cell Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-11 Taehyeong Kim, Younghyeon Kim, Jaesu Han, Sangseok Yu
Water concentration inside proton exchange membrane fuel cells (PEMFCs) is a key factor affecting performance and durability. Therefore, many studies have been conducted to maintain an appropriate moisture balance inside the stack. The most recent study was a study that confirmed moisture distribution using five sensors inside the anode and cathode. However, in this study, it is difficult to determine
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Thermal effectiveness enhancement in heat exchange tube using louver-punched V-baffles Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-10 Pongjet Promvonge, Pitak Promthaisong, Sompol Skullong, Mahdi Erfanian Nakhchi
An efficient technique for reducing frictional loss by punching holes on the surface of vortex generators has been extensively researched, particularly in the form of louver-punched holes. This article describes an experimental and numerical examination of thermal effectiveness in a heat exchange tube with louvered baffle vortex generators (LBVG). As air was directed to the LBVG-inserted tube with
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On thermodynamics and heat and mass transfer aspects of CH4 adsorption onto coconut shell-based carbonaceous material Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-10 Anupam Chaudhary, Satyabrata Sahoo
The current study investigates the equilibrium methane (CH) adsorption capacity and the adsorption kinetics of a locally produced coconut shell-derived activated carbon (AC CARB 6X12 60) for pressure and temperatures ranging from 0 to 55 bar and -20 to 70 °C, respectively. The adsorption isotherms and kinetics are determined using an in-house developed adsorption test rig. A maximum methane adsorption
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Investigating the stability mechanisms of single bulk Nanobubbles: A molecular dynamics perspective Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-10 Jiajie Lei, Dezhao Huang, Wensheng Zhao, Sheng Liu, Yanan Yue
In this study, we investigated the relationship between bubble stability and various parameters, including radial pressure, density, surface tension, charge distribution, and Brownian motion, using molecular dynamics simulations and classical bubble stability theory. Our research sheds light on the contrasting behavior of small and large nanobubbles in water, with larger bubbles demonstrating a prolonged
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Enhanced phonon transport in sI-type methane hydrate under uniaxial compression strain: Unveiling the opening of an advantageous channel Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-10 Dongsheng Chen, Tingting Miao, Cheng Chang, Xuyang Guo, Zhongli Ji
Unveiling the thermal transport mechanisms of natural gas hydrate under strain conditions is fundamental to the heat transfer of the hydrate reservoir during drilling and production. This work investigated the structural stability and phonon transport mechanisms of methane hydrate using equilibrium molecular dynamics simulations subjected to uniaxial compression strain. The results indicate that the
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A numerical investigation of the wettability effect on minitube flow boiling using the volume of fluid method Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-10 Hua-Yi Hsu, Ranjith Kumar, Chia-Wei Lin
Flow boiling within minitubes holds immense promise for efficient heat dissipation owing to its substantial latent heat exchange capacity. The performance and efficacy of the pump, crucial beyond just necessitating high heat flux, are closely tied to maintaining a low-pressure drop. Surface treatment stands out as one of the techniques to augment thermal efficiency. While the significance of microscale
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A real-fluid low-dissipative solver for flash boiling simulations of non-equilibrium mixtures Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-09 Francesco Duronio, Michele Battistoni, Andrea Di Mascio, Angelo De Vita, Faniry Nadia Zazaravaka Rahantamialisoa, Jacopo Zembi
An Eulerian fluid-dynamic code for simulating compressible, multi-phase flows with phase transition modeling was developed. The code features a low-dissipative flux-splitting discretization scheme, a real-fluid library to properly describe thermophysical properties, and a phase transition model for flows with thermal non-equilibrium.
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Quantum genetic algorithm assisted high speed and precision pump-probe thermoreflectance characterization of micro-/nano-structures Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-09 Yongze Xu, Yang He, Jinfeng Yang, Yan Zhou, Aihua Wu, Cui Yu, Yuwei Zhai, Yan Liu, Dihai Wu, Huaixin Guo, Huarui Sun
The rapid and precise extraction of thermophysical properties remains an enormous challenge in pump-probe thermoreflectance, and quantum algorithms present significant potential for addressing thermal transport problems. This paper introduces an innovative application of the quantum genetic algorithm to the fitting of experimental data from pump-probe thermoreflectance. Initially, a physical model
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Effect of off-bottom clearance of Lightnin impeller on heat transfer performance in the stirred tank coupled with draft tube Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-08 Yi Sui, Wenchun Jiang, Dahai Zhang, Huibo Meng, Yanfeng Zhao
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Review on numerical simulation of boiling heat transfer from atomistic to mesoscopic and macroscopic scales Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-08 Yujie Chen, Bo Yu, Wei Lu, Bohong Wang, Dongliang Sun, Kaituo Jiao, Wei Zhang, Wenquan Tao
Boiling is an efficient heat transfer mode with significant potential for thermal management in high-power electronic equipment. However, a comprehensive understanding of the boiling process, which encompasses bubble nucleation, growth, coalescence, slipping, and detachment across various scales, remains challenging. Molecular dynamics simulation, lattice Boltzmann, and computational fluid dynamics
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Analytical mass transfer coefficients for natural convection from vertical gas-evolving electrodes Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-08 N. Valle, J.W. Haverkort
The high mass transfer to or from gas-evolving electrodes is an attractive feature of electrochemical reactors, which can be partly attributed to the large convective flows that arise due to the buoyancy of bubbles. We derive exact analytical expressions for mass transfer coefficients for the case of constant gas flux boundary conditions. For the mass transport both Dirichlet and Neumann boundary conditions
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Relationship between cross-sectional plane and corresponding morphology in an immiscible alloy powder with core-deviated structure Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-07 Yinli Peng, Mei Li, Weibin Yang, Tongqi Wen, Ke Zhao, Gang Liu, Fang Xie
Immiscible alloy powders with core/shell structure have recently garnered considerable interest due to their excellent industrial performance. However, a frequently observed yet often overlooked feature is the presence of core-deviated structure in various cross-sectional planes of the powder. To date, limited research has been conducted on this structure and its origin, leaving the formation mechanism
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Numerical study of variable density and height flow guided pin fin in an open microchannel heat sink Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-07 Zhirun Shi, Xin Lan, Jie Cao, Ning Zhao, Yong Cheng
The rapid advancements in high power density electronics encounter challenges in thermal management due to elevated heat flux and nonuniform temperature dispersion. In this work, a staggered flow guided pin fin is proposed. Its thermal performance and hydraulic characteristics with varying height and density are numerically investigated and compared with the conventional rectangular pin fin structure
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Active learning molecular dynamics-assisted insights into ultralow thermal conductivity of two-dimensional covalent organic frameworks Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-07 Zhiqiang Li, Haoyu Dong, Jian Wang, Linhua Liu, Jia-Yue Yang
Two-dimensional covalent organic frameworks (2D COFs) are novel materials with high porosities and large surface areas that are highly sought after for separation technologies and energy storage. The exothermic issues of gas adsorption and storage processes need to be emphasized, which requires an in-depth understanding of heat transfer mechanisms. Limited by experimental conditions, imprecision of
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Non-axisymmetric Endwall film cooling characteristics considering the influences of cylindrical holes and laidback fan-shaped holes Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-07 Kun Du, Yihao Jia, Cunliang Liu, Bengt Sunden
Flow fields near the turbine vane endwall are complicated due to the endwall cross flows. The use of a non-axisymmetric endwall is regarded as an efficient technique to reduce the lateral pressure difference, decreasing the endwall cross flow. Numerical analysis was performed to determine how the non-axisymmetric endwall affected the vortex structure and heat transfer level. The cooling performance
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Capture of kinetic behavior of ethanol-based copper oxides in pulsating heat pipe Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-07 Yuchen Fan, Zhiguo Wang, Jingwei Guo, Da Ma, Wenzhe Yang
As a result of their superior capillary effect, pulsating heat pipes containing nanofluids offer a great deal of potential for cooling tiny and medium-sized electronic equipment. The traditional analytical methods are unable to completely reveal the operating characteristics of the pulsating heat pipe because of the typical chaotic system's inherent randomness in the distribution of the number of vaporized
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Analysis of wettability effects on thermal performance of vapor chamber with a hybrid lattice Boltzmann method Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-07 Ruiyang Ji, Siyu Qin, Yijia Liu, Liwen Jin, Chun Yang, Xiangzhao Meng
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Competitive adsorption-diffusion coupling process of helium-nitrogen mixture in shale kerogen nano-slit Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-06 Yang Zhou, Yi Ren, Kecheng Zeng, Ruina Xu, Bo Zhou
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Three-dimensional multi-scale topology optimization of porous heat sink with predetermined unit cells for natural convection heat transfer Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-06 Ji-Wang Luo, Li Chen, Yang Xia, Xinjian Zheng, Wen-Quan Tao
This work presents a novel multi-scale topology optimization (TO) method for designing the three-dimensional porous heat sink to enhance the natural convection heat transfer. The pore-scale lattice Boltzmann model is applied to predict the effective transport properties while the level-set-based TO is performed at the representative elementary volume (REV)-scale. Six predetermined unit cells of distinct
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Thermally conductive h-BN/EP composites oriented by AC electric field induction Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-06 Liang Liang, Yu Feng, Kailun Yang, Zhonghua Zhang, Qingguo Chen
The excellent electrical insulation properties and mechanical properties of epoxy resin (EP) have led to its rapid development in the field of microelectronic packaging. However, the poor thermal conductivity of epoxy resins (thermal conductivity of only 0.14 W/(m·K)) limits the development of components for high power. Adding h-BN to epoxy resin to prepare composites can effectively improve the thermal
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Degradation of the ZT thermoelectric figure of merit in silicon when nanostructuring: From bulk to nanowires Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-06 Martí Raya-Moreno, Riccardo Rurali, Xavier Cartoixà
Since the landmark paper by Hicks and Dresselhaus [Phys. Rev. B , 16631(R) (1993)], there has been a general consensus that one-dimensional nanoscale conductors, i.e. nanowires, provide the long sought paradigm to implement the so-called phonon-glass electron-crystal material, which results in large improvements in the thermoelectric figure of merit . Despite some encouraging—though isolated—experimental
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On the continuous nature of phase change in near-critical carbon dioxide Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-06 Trevor A. Whitaker, Sameer R. Rao
Unique boiling behavior at near-critical conditions can leverage the large heat transfer coefficients associated with flow boiling while mitigating some of the disadvantages encountered in two-phase flows, presenting opportunities for enhancing the stability and effectiveness of cooling systems. Contemporary understanding treats subcritical boiling and supercritical heat transfer as two distinct regimes
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Parameter extraction approaches for compact modeling of thermoelectric modules Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-06 Hanlong Wan, Bo Shen, Zhenning Li
Thermoelectric (TE) cooling has experienced rapid advancements with the foundational understanding of TE materials. TE modules, compact and lightweight devices, have become the prevalent approach for implementing TE technologies. Accurately quantifying TE physical parameters (Seebeck coefficient , thermal conductivity , and thermal resistance ) is challenging due to the dynamic temperature changes
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Multimaterial topology optimization of unsteady heat conduction problems based on discrete material optimization Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-06 S. Ogawa, K. Yonekura, K. Suzuki
This study proposes a multimaterial topology optimization method for unsteady heat-conduction problems using the discrete material optimization (DMO) method. It focuses on optimizing the configuration of multiple materials to maximize thermal conduction performance. The solid isotropic material with penalization (SIMP) method is commonly used for multiple materials, however, this method depends on
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Length effect of short base resin on thermomechanical properties of crosslinked epoxy resin via molecular dynamics simulation Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-05 Yinbo Zhao, Gota Kikugawa, Zhengming Huang, Yan Li
Epoxy resin is commonly used as the matrix in carbon fiber-reinforced polymer (CFRP), fabricated through the curing reaction of the base resin and curing agent, whose properties have a deep relationship with the crosslinking degree of the polymer. However, under certain circumstances, the desired conversion rate cannot be achieved in the experiments. To shed light on this phenomenon and the underlying
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Enhanced boiling heat transfer on structured surfaces with linear and staggered arrangements of hydrophilic and hydrophobic micro-pillars Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-05 Chao Luo, Toshio Tagawa
This study explores pool boiling performance of three-dimensional structured surfaces featuring square micro-pillars. The investigation employs the hybrid cascaded lattice Boltzmann method (CLBM) in conjunction with finite difference method (FDM). Four types of structured surfaces are considered: homogeneous hydrophilic surface (HHS), fully mixed surface (FMS), linear mixed surface (LMS), and staggered
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Close-contact melting of a vertical cylinder on an isothermal surface: Modeling and investigation for a non-Newtonian Herschel-Bulkley fluid liquid-phase Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-05 Y, o, r, a, m, , K, o, z, a, k
The present study deals with close-contact melting of a solid vertical cylinder on an isothermal surface. In particular, we develop a new numerical model designated for phase change materials with a non-Newtonian liquid-phase that behaves according to the Herschel-Bulkley fluid model. We reveal the dimensionless groups that govern the problem, and show that the new model provides a generalization for
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Optimizing thermal performance of pin-fin arrays using Bayesian methods for turbine cooling Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-04 Evan M. Mihalko, Amrita Basak
Pin-fin arrays are crucial in the cooling of aerospace components. Specifically, pin-fins find extensive usage in the trailing edge of turbine blades, primarily due to the harsh operating conditions these blades experience. With the development of additive manufacturing, complex internal geometries that were previously too expensive to manufacture are now feasible. This advancement has created a new
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Enhancing the vertical downward condensation heat transfer of a plate heat exchanger by electrochemical etching Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-04 Dong Ho Nguyen, TaeJoo Kim, Jin Man Kim, Taewan Kim, Thana Arkadumnuay, Omid Mahian, Ho Seon Ahn, Somchai Wongwises
This research employed electrochemical etching to generate microscale roughness on a plate heat exchanger (PHE) thereby enhancing condensation heat transfer in a vertical downward flow. The effects of the mass flux, vapor quality, heat flux, saturation temperature and microscale surface roughness on the condensation heat transfer coefficient (HTC) and frictional pressure drop (FPD) of R-513a flowing
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Heat transfer and spreading in a finite-thickness cylinder with spatially varying convective cooling along the side wall Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-03 Girish Krishnan, Ankur Jain
Thermal spreading and constriction resistance play an important role in thermal management of a variety of engineering systems, including semiconductor devices. Moreover, thermal contact resistance at interfaces between materials is also governed by spreading and constriction processes. Most of the past literature on theoretical modeling of thermal spreading from a source into a larger body assumes
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The heat transfer enhancement with a flag-shaped flexible wing Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-02 Xueling Liu, Yunkai Leng, Jiansheng Wang
The flow and heat transfer characteristics in a rectangular channel with a flag-shaped flexible wing are numerically investigated. The effects of Young's modulus of flexible wings and Reynolds number on the fluid dynamic and heat transfer characteristics are explored. Different from the previous investigations, the visualization of the flexible wings motion and vortex structure induced by the flexible
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Experimental study on the performance of power battery module heating management under a low–temperatures charging scenario Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-02 Xiaohua Zeng, Jingjing Li, Lulu Qiao, Meng Chen
To effectively solve the problem that the capacity of lithium power batteries decreases significantly and is prone to irreversible damage under low–temperature charge and discharge scenarios, which seriously affects the driving range, cycle life and service safety of electric vehicles (EVs). In this paper, a low–temperatures thermal management system of pulsating heat pipes with ethanol as the base
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Enhancement of efficiencies of cryogenic energy storage packed bed using a novel Referred-Standard-Volume optimization method Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-01 Xiaohui She, Xingyu Wang, Peng Han, Yongliang Li, Chen Wang
Cryogenic liquids (e.g., liquid air, liquid hydrogen, liquid carbon dioxide) have gained popularity in electricity storage due to their high energy density, no geographical constraints, and environmental friendliness. The cryogenic energy storage packed bed (CESPB) is widely employed as a cold recovery device to enhance the round-trip efficiency of cryogenic energy storage systems. Nonetheless, the
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A control-oriented mathematical model for the evolution of temperatures and phases in a steel strip during cooling Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-01 M. Niederer, P. Zeman, S. Sannes, H. Seyrkammer, G. Helekal, A. Kugi, A. Steinboeck
In the state of the art of steel production, the temperature evolution of steel strips is typically controlled to regulate the phase contents indirectly and, with this, their material properties. This paper proposes a novel computationally efficient, real-time capable dynamic model that captures both the temperature evolution and the phase transformations in the steel strip. The steel strip is processed
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Flow boiling pressure drop correlation in small to micro passages Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-01 Ali H. Al-Zaidi, Mohamed M. Mahmoud, Tassos G. Karayiannis
An accurate and acceptable correlation for the prediction of two-phase pressure drop is considered a crucial step in heat exchanger design. Although many existing models and correlations were developed and proposed in the past, their ability to predict within acceptable error bands when applied in general to flow boiling flows is limited, even within their originally recorded ranges. The discrepancies
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Stochastic simulation of magnetically controlled convection in porous media with random porosity via Karhunen-Loève expansion and intrusive polynomial chaos expansion Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-01 Changwei Jiang, Yuquan Qi, Jie Li, Xiong Mei, Wei Li, Er Shi
Understanding and quantifying uncertainty factors are crucial for accurately predicting thermomagnetic convection phenomena. This study presented a mathematical model and algorithm framework for uncertainty analysis of thermomagnetic convection in porous media with random porosity. The proposed method combined Karhunen-Loève expansion and intrusive polynomial chaos expansion to represent the input
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Characterization and experimental assessment of hybrid cooling strategy for lithium-ion batteries by integrating microencapsulated phase change materials Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-03-01 Aikun Tang, Jun Pan, Dengfu Xia, Tao Cai, Qian Zhang, Getachew Alemu Tenkolu, Yi Jin
This study proposes a novel hybrid cooling approach for lithium-ion battery thermal management by integrating dual-phase change with the large surface liquid cooling scheme. Microencapsulated phase change materials (MPCM) are synthesized using an in-situ polymerization method, employing a melamine-urea-formaldehyde shell and a dual-core of octadecane (C18) and docosane (C22). Nitrogen-doped multi-walled
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Convective heat transfer with condensation in crossflow of a circular cylinder: Experiments and simulations Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-02-29 Zheng Xu, Mark Anthony Redo, Manabu Watanabe
Forced convection heat transfer has been widely studied but not with the inclusion of condensation phenomenon particularly in crossflow of a cylinder. In this study, the convective heat transfer with moisture condensation of the air that is relevant for food thawing applications with the airflow around a circular cylinder was investigated. Experiments were carried out that represents food air-thawing
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CO2 capture using gas-lift pumps operating under two-phase flow conditions Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-02-29 Alexander Doucette, Shahriyar Ghazanfari Holagh, Wael H. Ahmed
CO capture through dissolution in water offers environmental benefits and industry applications. However, current studies mostly focus on CO extraction into solvents, overlooking its direct solubility in water. Alternatively, gas-lift pumps may hold significant potential for capturing and storing CO in water; but this ability remains unexplored. Therefore, this study experimentally delves into the
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Multi-objective optimization of the wet at the blade's inlet and surface heating for wet steam flow in turbine blade cascade by TOPSIS method Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-02-28 Esmail Lakzian, Daryoush Dadpour, Mohammad Reza Aghdasi, Mohsen Gholami, Heuy Dong Kim
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Experimental research on heat transfer characteristics of a battery liquid-cooling system with ⊥-shaped oscillating heat pipe under pulsating flow Int. J. Heat Mass Transf. (IF 5.2) Pub Date : 2024-02-28 Lu Hongkun, M.M. Noor, Yu Wenlin, K. Kadirgama, I.A. Badruddin, S. Kamangar
After a comprehensive review of oscillating heat pipe (OHP) based on battery thermal management system (BTMS), a novel battery liquid-cooling system with a ⊥-shaped OHP is presented to increase the volume utilization efficiency of battery module and the total amount of heat dissipation. The new system retains the heat transfer path of the OHP while incorporating an additional heat dissipation route