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SiO2@Cu core-shell nanostructure impregnation on phase changed material (paraffin) for thermal energy storage Exp. Heat Transf. (IF 3.5) Pub Date : 2024-04-16 Neetu Bora, Deepika P. Joshi, Mrinal Kanti Adak
The present research aims to achieve a shape-stable, and leakage-proof material for thermal energy storage (TES). The leakage analysis of 20 wt.% SiO2@Cu PCM shows 0.05%, as a result, more testing ...
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Machine learning-based Nusselt number prediction for falling-film evaporators in absorption refrigeration systems Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-17 Thi Nhan Nguyen, Syed Muhammad Ammar, Chan Woo Park
The evaporator serves as a pivotal component of an absorption refrigeration system (ARS), bolstered by improved wettability and mitigation of the irregular arrangement of the liquid film. The complexities of the evaporation heat transfer characteristics of falling films have led to numerous empirical correlations for falling-film Nusselt number () estimation, demanding substantial computational resources
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Heat transfer performance study of fluid rotating microchannel heat sink Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 Yu Fan, Chuan Chen, Rong Fu, Qidong Wang, Liqiang Cao, Xinhua Chen, Meiying Su, Yikang Zhou, Weihai Bu, Kai Zheng, Jin Kang
The study presents a novel fluid rotating microchannel heat sink (FR-MC) and reports its heat transfer performance. The FR-MC features two cross ribs positioned in the channel. These cross ribs are inclined in the direction of fluid flow, with each rib inclining in opposite directions. This design enables the fluid to ascend or descend along the ribs, creating rotation after passing through the center
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Influence of variable viscosity and slip on heat and mass transfer of immiscible fluids in a vertical channel Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 Vanaja Gosty, G. Srinivas, B. Suresh Babu, B. Shankar Goud, Ahmed S. Hendy, Mohamed R. Ali
This study examines the heat and mass transfer phenomena that take place in a vertical channel containing immiscible fluids, specifically micropolar and viscous fluids. The main objective is to explore the impact of variable viscosity, velocity slip, and other pertinent parameters on various properties, including velocity, angular velocity, temperature, and diffusion. This investigation reveals a significant
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Performance optimization of the transient thermoelectric cooling for the temperature control of the chip working under dynamic power Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 Yongjia Wu, Peng Zhang, Sen Chen, Congcong Zhi, Tianhao Shi, Tingrui Gong, Tingzhen Ming
The thermoelectric cooler (TEC) operating under the transient mode showed a stronger short term cooling effect than that of the steady state mode. In this study, a chip cooling experimental setup with the chip modeled by a ceramic heater was constructed using a commercial BiTe-based TEC. A transient three-dimensional numerical model was established for the system optimization. The impacts of the pulse
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Comparative analysis of the fire performance of pipe insulations depending on test standards Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-15 Ohk Kun Lim
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Supercritical heat transfer of Novec 649 refrigerant in a minichannel with various inclination angles: Horizontal to vertically downward flows Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-15 Ben-Ran Fu, Chih-Yun Liu
The study of organic fluids under supercritical conditions has been less extensive than that of supercritical carbon dioxide and water. In addition, most studies on supercritical heat transfer have focused on horizontal or vertical channels, with limited research on inclination angles. Therefore, the focus of this study was to investigate the supercritical heat transfer of organic fluid (Novec 649)
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Enhanced heat transfer in vented square enclosures with block structures: Exploring iso-perimetric shapes and multigrid approach for mixed convection of nano-fluids Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-15 Nusrat Rehman, Rashid Mahmood, Afraz Hussain Majeed, Mohamed R. Ali, Ahmed S. Hendy
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Experimental and numerical study on natural gas explosion evolution in open space under different initial conditions Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-15 Shiyu Jia, Mingzhi Li, Zhenyi Liu, Zihao Xiu, Chen Wang, Peng Cai, Kan Wang
The vapor cloud explosion in open space are greatly affected by the initial conditions of gas cloud and the surrounding environment, while in the gas compressor station, these factors are ubiquitous. While the researches of external influencing factors like the obstacle and initial turbulence effect on natural gas explosion in open space are rare. In this paper, a series of natural gas explosion experiments
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Utilization of RSM to optimize the performance and emissions of a single cylinder diesel engine using waste hazelnut biodiesel Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-15 Emre Aytav
One of the environmentally friendly, biodegradable, and renewable alternative fuels widely used around the world is biodiesel. Among vegetable oils, hazelnut oil has great importance in biodiesel production due to its high content of oleic acid. For this study, it is aimed to determine the optimum mixing ratio of biodiesel, produced from waste hazelnut oil (WHB). The tests were carried out on a diesel
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Study on the influence of slope on smoke overflow and temperature characteristics of carriages with lateral openings in subway fires Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-14 Xinyu Wang, Guoqing Zhu, Deqiang Cheng, Guowei Zhang, Lu He, Min Peng, Tong Liu, Rongliang Pan, Yuyang Ming, Fanbao Chen
This research explores the impact of slope on fire hazards in train carriages with multiple lateral openings in underground tunnel fires. Utilizing FDS software, a comprehensive full-scale fire scenario is simulated to study smoke overflow and temperature distribution in inclined tunnels with slopes ranging from 0 % to 4 % and Heat Release Rates (1 MW–10 MW) under natural ventilation. The study reveals
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Influence of air-conditioning intermittent operation on the cooling load from opaque envelopes in residences Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-14 Xi Meng
Air-conditioning (AC) intermittent operation is extensively employed owing to occupancy regulations and residents' habits. This conditioning operation type significantly affects the indoor air temperature as a result of the on-off cycles of AC, leading to potential high temperature differences between adjacent rooms due to varying operation rules. Based on this, numerical simulations were done to deal
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Optimal control of thermoregulation in the human dermal regions investigated through the stochastic integrated techniques Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-14 Iftikhar Ahmad, Syed Ibrar Hussain, Hira Ilyas, Muhammad Asif Zahoor Raja, Sana Afzal, Mariam Javed
In this research, stochastic computing techniques based on artificial neural networks are applied to the proposed singular nonlinear differential equation to explain thermoregulation in the human dermal region problem to investigate and predict the effect of bioheat temperature on human skin at different atmospheric temperatures with different cases with considering the impact of both air convection
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Study on thermal error modeling of high-speed motorized spindle considering bearing inner ring temperature Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-13 Ye Dai, Jian Pang, XuKun Rui, WeiWei Li
In addressing the challenge of unattainable temperature data at critical heat source points in bearings, this study solves for the temperatures of the bearing inner ring and rollers by merging thermal resistance network calculations with experimental data, referencing finite element simulation outcomes. The impact of temperature data from various positions within bearings on model accuracy is assessed
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Evaluation of thermal radiation and Lewis number effects on oscillatory thermal-diffusive instabilities of counterflow premixed flame fed with moisty biomass particles Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-13 Moein Farmahini Farahani, Shahin Akbari, Khashayar Hosseinzadeh
In this study, a thermal-diffusive model using a sinusoidal function for the oscillation term is presented. The model is employed to evaluate the pulsating behavior in a premixed counterflow flame fed with biomass particle cloud considering Lewis number and thermal radiation effects. In order to scrutinize the pulsating characteristics of a flame, time-related governing equations are written for the
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Comparative study of nonlinear thermal convection on magnetized dissipative flow along a shrinking Riga sheet with entropy generation Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-12 Palani Sathya, Padigepati Naveen
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Experimental study on the effect of modified heated surfaces on the heat transfer performance of deionized water and ethylene glycol binary mixtures Exp. Heat Transf. (IF 3.5) Pub Date : 2024-04-09 Chen Xu, Wanqing Zhu, Zuo-Qin Qian, Jie Ren
With the development of modern industry, the demand for environmentally friendly working fluids is gradually increasing. Although binary mixtures have low global warming potential, their boiling he...
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Study on the evolution law of physical mechanics and abrasion characteristics of granite under high temperature-water cooling treatment Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-10 Xiangwei Li, Jian Lin, Wanhang Shao, Dongliang Ge, Yun Wu
During deep geothermal resource development, the estimation of drilling efficiency and tool wear in extremely hard rocks relies primarily on CAI testing. However, the degradation of rocks caused by high-temperature water cooling conditions leads to unpredictable changes in CAI. To address this issue, this study conducted P-wave velocity, hardness, thermal conductivity testing, BTS experiments, CAI
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Thermal response of DNAN based explosives considering thermodynamic coupling:Under different charge quantity and diameter changes Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-10 Dihua Ouyang, Chunwei Qin, Xiaowen Qin, Liu Qing, Tao Yu
This paper explores the impact of changes in charge quantity and diameter on the thermal response of DNAN-based explosives. To achieve this, we established a method for simulating thermal, chemical, and mechanical coupling. The study focuses on three fixed charge quantities of explosives, each with varying length-to-diameter ratios, examining alterations in ignition position, timing, and temperature
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Elucidating the effects of surface wettability on boiling heat transfer using hydrophilic and hydrophobic surfaces with laser-etched microchannels Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-10 Domen Žalec, Matic Može, Matevž Zupančič, Iztok Golobič
This study explores the nuanced interplay between surface wettability and morphology in nucleate boiling heat transfer. Surfaces with identical microstructures but varying wettability are created on copper substrates using laser texturing and a hydrophobic agent. The spacing between laser-etched microchannels is adjusted to achieve different contact angles and percentages of laser-textured areas. Boiling
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Optimization of the performance and operation of a photovoltaic-thermoelectric power supply system for bridge safety monitoring microsystems Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-10 Guorui Wei, Tao Lin
In the long-term unattended condition, the continuous operation of bridge safety monitoring micro-system (BSMMS) in mountain areas has the issue of insufficient energy supply. Therefore, a photovoltaic-thermoelectric hybrid power generation system (PV-TEG) is proposed to power the temperature, wind speed, and tilt sensors of BSMMS. The power generation performance and characteristics of PV and TEG
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Analytical modeling of the mixed-mode behavior in functionally graded coating/substrate systems Contin. Mech. Thermodyn. (IF 2.6) Pub Date : 2024-04-08 Rossana Dimitri, Marco Trullo, Martina Rinaldi, Caterina Fai, Francesco Tornabene
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Unraveling metachronal wave effects on heat and mass transfer in Non-Newtonian fluid Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-09 Yuchi Leng, Yijie Li, Haris Anwaar, Sidra Shaheen, Muhammad Bilal Arain, Emad Az-Zo'bi, Ahmed M. Zidan
Non-Newtonian fluids flow generated by “” are critical in medicine and bio-medical engineering. Such investigations are created by the back-and-forth movement of a microscopic hair-like structure connected to the walls, which causes a metachronal wave to form and drive biological fluids. Motivated by a wide range of biological applications, this study aims to explain the incompressible flow of Ellis
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Impact of length and radius of carbon nanotubes on flow and heat transfer in converging and diverging channels with entropy generation Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-09 Badreddine Ayadi, Rabia Rehman, Basharat Ullah, Hafiz Abdul Wahab, Umar Khan, Taseer Muhammad, Lioua Kolsi, Nejib Ghazouani
This research examines the complex interplay between the carbon nanotubes' length and radius and how that affects flow patterns, heat transfer properties, and entropy creation in both convergent and divergent channels. Our research elucidates the mechanisms at play by revealing a crucial link between carbon nanotube dimensions and the efficacy of heat transfer processes. In particular, carbon nanotubes
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The suppression of thermal propagation using spray cooling with R410A in overheated lithium battery pack Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-09 Xiaoyan Liu, Tianshi Zhang, Qing Gao, Zhiwu Han, Haizhen Huang, Yihuai Xu, Haopeng Chen, Xiaoyu Xu
Currently, the thermal safety control of lithium-ion batteries for electric vehicles has emerged as a prominent research focus in both academia and industry. During the transition from overheating to the initial stage of thermal runaway, lithium batteries undergo an overheating decomposition reaction, which presents an opportunity for proactive prevention of thermal runaway. In this context, this study
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Thermal transport in thermoelectric materials of SnSSe and SnS[formula omitted]: A non-equilibrium Monte-Carlo simulation of Boltzmann transport equation Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-09 Seyedeh Ameneh Bahadori, Zahra Shomali
In the present work, thermal transport and the energy conversation in two thermoelectrically efficient candidates of Janus SnSSe and SnS are investigated within the non-equilibrium Monte Carlo simulation of the phonon Boltzmann equation. The phonon analysis has been performed to determine the contributed phonon in heat transport. The results present that the dominant participating phonons are the ones
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Performance analysis and optimization of thermal barrier coated piston diesel engine fuelled with biodiesel using RSM Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-09 G. Anjaneya, S. Sunil, Srinivasa Rao K, N.K. Manjunatha, Jayant Giri, Hamad A. Al-Lohedan, T. Sathish, C Durga Prasad
The current research investigates diesel and simarouba biodiesel blends (10%, 20%, & 30% by volume) in conventional and Low Heat Rejection (LHR) diesel engines, each rated at 4.4 kW. While optimization techniques like Response Surface Method and Taguchi have been extensively studied, the impact of LHR and optimization on LHR engine performance and emissions is rarely explored. Converting the conventional
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Graph convolution network-based surrogate model for natural convection in annuli Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-09 Feng Feng, Yu-Bai Li, Zhi-Hua Chen, Wei-Tao Wu, Jiang-Zhou Peng, Mei Mei
This work develops a model for natural convection in annuli with internal heat sources based on Graph Convolution Network (GCN), achieving rapid prediction by directly establishing the mapping relationship between the geometric features and the temperature field. The GCN learns node features and connections between nodes in data structures. Compared with traditional machine learning networks, GCN exhibits
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Numerical investigation on upper layer thickness and temperature rise in a fire in two rooms connected through a side vent Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-08 Yun Young Kim, Chi Young Lee
Upper layer thickness and temperature rise in a fire in two rooms connected through a side vent were numerically investigated. Side vents of SV-1 and SV-2 were installed between two rooms (R-1 and R-2) and between R-2 and the outside, respectively. Situations in which fires occurred in R-1 and R-2, referred to as R-1-F and R-2-F, respectively, were tested. Effects of heat release rate (HRR), SV-1 width
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A study of four-phase fluid and thermal enhancement based on tetra-hybrid nanofluid considering temperature jump on a spinning sphere Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-08 Shuai Yuan, Yuchi Leng, Ahmed Fouly, Emad Mahrous Awwad, Umar Nazir, Muhammad Sohail
The purpose of the current development is to investigate solar thermal radiations using advanced tetra-hybrid nano-structures in advanced industrial applications. The inclusion of tetra-hybrid nanoparticles into thermal energy storage devices is a vital mechanism while suspension nanoparticles can be treated as solar absorbers, absorbing solar light and converting it to heat. The current study reveals
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Enhancing energy efficiency in zero energy buildings: Analyzing the impacts of phase change material-filled enclosures and outlet air distance on solar wall performance Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-08 Saeed Alqaed, Jawed Mustafa, S. Mohammad Sajadi, Hikmet Ş. Aybar
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Experimental study on the water and heat dynamic characteristics of silty clay at different depths under temperature gradient Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-08 Yajun Shi, Xiangbing Kong, Wei Ma, Lianhai Zhang, Chengsong Yang, Yanhu Mu
Soil properties play a crucial role in the stability of engineering foundations, particularly in cold regions where temperature gradients impact water migration and soil conditions. This study utilized MRI-Cryogenic Soil-Moisture Analyzer (MRI-CSMA) to conduct indoor freeze-thaw experiments on silty clay specimens with varying initial water contents (12.0 %, 16.8 %, and 21.1 %). Dynamic changes in
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Microwave-enabled rapid volumetric heating of moldable low-dielectric-loss glass Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-08 Hong Luo, Yuming Zhang, Jianwu Yu, Jun Qian, Qingchun Li, Jian'an Liu, Yingying Zhang, Kai Liao
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Lack-of-fit reduction in non-equilibrium thermodynamics applied to the Kac–Zwanzig model J. Non Equilib. Thermodyn. (IF 6.6) Pub Date : 2024-04-08 Kateřina Mladá, Martin Šípka, Michal Pavelka
Even when microscopic particle dynamics is purely mechanistic and thus reversible, the behavior of macroscopic systems composed of those particles is irreversible. In other words, effectively irreversible behavior emerges out of purely reversible dynamics when we do not observe all degrees of freedom of the detailed dynamics. But how can we find the irreversible macroscopic evolution equations when
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Variations on the models of Carnot irreversible thermomechanical engine J. Non Equilib. Thermodyn. (IF 6.6) Pub Date : 2024-04-08 Michel Feidt, Monica Costea
The JETC Conference held in Salerno (June 12–17, 2023) was the opportunity to honor the two centuries anniversary of the booklet publication of Sadi Carnot. The paper reports on a selective review summarizing the evolution of the ideas and concepts proposed by Carnot. We consider mainly: a. The Carnot cycle relative to thermomechanical engine, b. The concept of efficiency (Carnot efficiency), c. The
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A numerical modeling of battery thermal management system using nano-enhanced phase change material in hot climate conditions Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-07 Jing Zhu, Rishabh Chaturvedi, Yasser Fouad, Ibrahim Albaijan, Nizomiddin Juraev, Laith H. Alzubaidi, Ibrahim Mahariq, Abdulkareem Afandi, Hakim A.L. Garalleh
Battery thermal management system (BTMS) is of utmost importance to ensure their safe and efficient operation. In regions with hot climates, such as Saudi Arabia, batteries are particularly susceptible to overheating, leading to performance degradation, safety risks, and potential fires. Traditional phase change materials (PCMs) have limitations in terms of slow response times and limited thermal conductivity
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Experimental study of butanol blending in biogas-biodiesel fueled CI engine under dual fuel, RCCI and HCCI combustion modes Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-07 M. Feroskhan, N. Gobinath
Advancement in global emission policies and competitive market demands for fuel-efficient vehicles enforce challenges over the usage of internal combustion engines. Greenhouse and other pollution gases which could emanate from engine combustions can be controlled by supplying right fuel at the choice of operating modes. In the present research, impact of butanol blending into the secondary fuel on
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Analysis of cascade vapor compression refrigeration system using nanorefrigerants: Energy, exergy, and environmental (3E) Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-07 Metin Yilmaz, Canan Cimsit, Arzu Keven, Rabi Karaali
Nanorefrigerants are considered the most efficient heat transfer fluids for improving heat transfer properties in the refrigeration and air conditioning equipment. For the first time in this study, energy, exergy, and environmental evaluation (3E) analyses were performed by the addition of different nanoparticles to a low GWP refrigerant pair such as R290/R1233ZDE in a cascade refrigeration system
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Investigation into X-point emissivity in metallic materials for temperature measurement Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-07 Gangquan Wang, Yinxue Bai, Naiya Yan, Longfei Li, Kaihua Zhang, Baolin Zhao, Yufang Liu, Kun Yu
Amidst the swift progression of thermal radiation, the application of high-temperature spectral radiation characteristics in metallic materials has become pervasive across domains such as temperature measurement and material identification. X-Point is the intersection of the metal emissivity isotherms. The scope of X-point emissivity has been inadequately explored in prior investigations. The present
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Numerical study of a novel automotive thermoelectric generator system equipped with segmented converging heat exchanger Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-07 Jie Chen, Ruochen Wang, Renkai Ding, Ding Luo
The automotive thermoelectric generator (ATEG) system represents a significant advancement in exhaust waste heat recovery for conventional or extended-range engines. This study aims to comprehensively assess the performance advantages of a novel ATEG system equipped with a segmented converging heat exchanger. The numerical method is used to conduct the simulation analysis. An experimental bench is
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Improving heat transfer through alumina-silica nanoparticles suspension: an experimental study on a single cooling plate Exp. Heat Transf. (IF 3.5) Pub Date : 2024-04-05 Saifuddin Khalid, Irnie Azlin Zakaria, Wan Hamzah Azmi, Mohamad Noor Izwan Johari, Wan Ahmad Najmi Wan Mohamed
The urge for more complicated, sophisticated electrically active heat transfer devices, has intensified nowadays thus requiring a more critical thermal management issue. The generation of higher he...
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Natural buoyancy and thermally radiated driven flow in a saturated Darcy medium with suspension of microbes Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-06 Usman Afzal, C.S.K. Raju, Mansoor Alshehri, Nehad Ali Shah, Jae Dong Chung
The captivating realm of bio-convection has garnered significant attention due to its wide array of applications spanning medicine, cancer treatment, advanced aircraft manufacturing, water distillation, enhanced electronic instruments, efficient batteries, cosmetics production, and modern defense equipment. Recognizing this multifaceted significance, a numerical investigation focused on buoyancy-driven
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Dynamic compressive properties of heat-treated and pre-stressed cement mortar specimen subjected to cyclic impact loading Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-06 Ronghua Shu, Guang Xu, Lijinhong Huang
By carrying out the cyclic dynamic compressive experiment, the dynamic compressive properties of heat-treated and pre-stressed cement mortar subjected to cyclic impact loading were obtained. The results show that under static and cyclic impact loading, the peak stress shows a nonlinear decrease trend with the increasing dynamic impact number, and the failure strength decreases as heated temperature
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Applicability evaluation of a temperature humidity index-controlled ventilation system in livestock using a building energy simulation model Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-06 Hakjong Shin, Sang-yeon Lee, Jun-gyu Kim, Dae-Heon Park, Seng-Kyoun Jo, Younghoon Kwak
In general, for livestock building, a simple system for controlling the HVAC system that is based only on the indoor air temperature is applied. This study evaluated the applicability of temperature humidity index (THI)-based ventilation systems installed in livestock buildings using a building energy simulation model. Based on the monitoring data of an actual pig house, the integrated predictive performance
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Experimental and numerical research on thermal characteristics of phase change thermal storage device Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-05 Zepeng Liu, Liping Zeng, Mengyao Sheng, Yan Yan, Wenjing Li, Huan Su
Phase change materials (PCMs) are widely used in heat exchangers because of their advantages of high energy storage density and constant temperature heat storage and release. In this study, the application of palmitic acid as PCM in double spiral tube heat exchanger was discussed and its heat transfer characteristics were analyzed. Firstly, the heat transfer characteristics of the heat storage and
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Evaluation on novel Kalina power generation system through exergoenvironmental analysis Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-05 G. Uma Maheswari, N. Shankar Ganesh, T. Srinivas, B.V. Reddy
First law analysis assesses the performance of the system considered for investigation in the energy aspect. Low-temperature power generation system suitable to recover waste heat from a renewable source is investigated in the present work. The system is adopted to work at hot sink conditions and investigation on performance assessment is carried out in exergy aspect. Exergy analysis in both conventional
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Analysis of NePCM melting flow inside a trapezoidal enclosure with hot cylinders: Effects of hot cylinders configuration and slope angle Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-04 Nidhal Ben Khedher, S.A.M. Mehryan, Mohammad Shahabadi, Amira M. Hussin, Abed Saif Alghawli, Mohsen Sharifpur
Hot cylinders within the cavity can find diverse thermal applications, ranging from electronic devices and heat exchangers to solar systems, nuclear reactors, and the thermal design of passive cooling systems. Consequently, considering the use of phase change materials (PCM) close to hot cylinders emerges as a viable method for both cooling and storing thermal energy. In this work, two hot cylinders
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Simulation on the performance and cooling capacity compensation solution of a loop thermosyphon system under fan failure conditions Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-04 Sikai Zou, Quan Zhang, Chang Yue
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Flow of couple stress nanofluid due to stretching surface with applications of induced magnetic field and variable thermal conductivity Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-04 Amjad Salamah Aljaloud, Leila Manai, Iskander Tlili
Owing to current evolution in nanotechnology, the idea of nanomaterials has been developed to improve the heat transfer phenomena. In order to obtain diverse significance of nanomaterials in engineering systems, applications of different thermal sources are contributed. The aim of current analysis is to presents the induction of induced magnetic force for couple stress nanofluid due to moving stretched
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Thermal performance of a large-diameter thin flattened heat pipe with novel composite wick structure Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-04 Wenjie Zhou, Yong Li, Guangwen Huang, Yong Yang, Lanying Xu, Junfeng He, Yue Jian
Flattening large-diameter cylindrical heat pipes to fabricate thin heat pipes can significantly improve their heat transfer performance in theory, but their appropriate wick structures and thermal performance are still unclear. In this work, a novel composite wick structure sintered from spiral woven mesh and orthogonal woven mesh was developed for large-diameter thin flattened heat pipes. Their diameter
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A numerical study of the nanoparticles type effects on the atomic and thermal behavior of silica aerogel/paraffine nanostructure in a cylindrical duct: A molecular dynamics approach Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-04 Samad Jafarmadar, Morteza Khalilian, As'ad Alizadeh, Davood Toghraie
The research examines how silica aerogel and paraffin behaved as phase-change materials in thermal energy storage systems using CuO nanoparticles. The significance is in meeting the need for effective energy storage techniques in response to increasing air pollution levels and rising conventional fuel expenses. The study used molecular dynamics simulations to examine the atomic and thermal properties
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Infrared drying characteristics and optimization of ginseng Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-04 Yixiao Zhang, Yijun Lu, Dan Huang, Hangyi Zhao, Shuai Huang, Liqiang Zhang, Guiliang Gong, Lijun Li
Fresh ginseng has a high moisture content and is easy to be deteriorated, thus an effective drying method is needed. Infrared drying is known as low energy consumption, and high heat transfer, thus the far infrared (FIR) and near infrared (NIR) drying characteristics of ginseng were investigated and compared. Influences of infrared temperature, radiation distance, and slice thickness on the drying
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Investigating the influence of reflective materials on indoor thermal environment and solar reflectance in buildings Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-04 Jihui Yuan, Yasuhiro Shimazaki, Masaki Tajima, Shaoyu Sheng, Zhichao Jiao, Marko Bizjak
This in-depth study explores the intricate dynamics of reflective materials, emphasizing their impact on the indoor thermal environment and urban heat island (UHI) mitigation. Examining diffuse highly reflective (DHR), general reflective (GR), and retro-reflective (RR) materials on a simplified building model during summer days, the research utilizes outdoor experiments to analyze air and surface temperatures
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Experimental investigation of two-phase immersion cooling with single and multi-fluid systems Exp. Heat Transf. (IF 3.5) Pub Date : 2024-04-02 Pratheek Suresh, V.B. Krishnadasan, Srikanth Rangarajan, C. Balaji
Two-phase immersion cooling has emerged as a promising solution for efficient and effective thermal management in high-performance computing applications. This study presents the results of detaile...
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Forecasting the temperature of a building-integrated photovoltaic panel equipped with phase change material using artificial neural network Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-03 Shiwan Zhou, Wenting Lu, Wenfang Li, Suqi Wang
This research aims to conduct a numerical investigation into the impact of incorporating phase change material on the thermal management of a building-integrated solar photovoltaic panel. The study compares the outcomes with those of a photovoltaic panel without the phase change material layer, utilizing sunlight intensity and ambient temperature data from the Meteorological Organization of Jiangsu
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Two-phase flow characteristics and visualization of distributed confined array jet boiling Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-03 Xinyu Ji, Xiaoping Yang, Xiang Ma, Hongmiao Tian, Jinjia Wei, Bengt Sunden
Confined array jet boiling can achieve high heat flux in a compact space and its flow resistance characteristics are critical to the design of cooling systems. The boiling images of distributed confined jet of HFE-7100 is recorded by a high-speed camera in this study. The effects of jet mass flux, jet height and surface structure of two-phase jet flow characteristics on micro-pin-finned surfaces are
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Numerical simulation study on integral induction heating of backup roll Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-03 Taolue Wen, Xiaofeng Qin, Zhi Lv, Ping Yang, Wei Chen, Jing Xie, Fengbin Liu
A finite element model (FEM) of the electromagnetic-thermal coupling is developed to study the integral induction heating of the backup roll. The method of calling different B–H curves of the material at different temperature moments is proposed to consider the change of the relative permeability of the backup roll in the temperature rise process. The magneto-thermal two-way coupling simulation of
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Polymeric coatings for passive radiative cooling of PV modules in hot and humid weather: Design, optimization, and performance evaluation Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-03 Ali A. Alshammari, Elias M. Salilih, Eydhah Almatrafi, Mohamed Rady
This article evaluates the utilization of Polyethylene terephthalate (PET) and Polydimethylsiloxane (PDMS) polymeric coatings for passive radiative cooling of commercial photovoltaic (PV) modules. The methodology involves the design of film coatings and the analysis of their optical properties. A numerical model is developed to simulate the thermal behavior of the PV system. Parametric analysis explores
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Elasto-plasticity theory for large plastic deformation and its use for the material stiffness determination Contin. Mech. Thermodyn. (IF 2.6) Pub Date : 2024-04-02 Martin Weber, Holm Altenbach
In this paper, we present a finite elasto-plasticity theory for large plastic deformations. For the elastic part of the model, we use the St. Venant–Kirchhoff elasticity. The plastic part is described by the isomorphy concept, the yield condition is covered by the isotropic \(J_2\) theory of (Huber in Czas Techn 22:34,1904; von Mises in Math Phys 4:582–592, 1913) and (Hencky in ZAMM 9:215–220, 1924)
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Effects of using fireproof thermal management systems on the lifespan of battery cells Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-02 Thomas Imre Cyrille Buidin, Florin Mariasiu
The current need, from the point of view of increasing the sustainability of electric vehicles (more and more present in the car market), makes the research in the field to be focused on the analysis of the factors that can lead to an increase electric vehicle batteries' lifespan. Since this is directly related to the temperatures reached during operation and the thermal gradients inside the battery