-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
Thermo-fluidic behavior and entropy interpretation of ternary hybrid nanofluid inside an inclined domain having semi-circular heater and triangle-shaped corrugated walls Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-23 M.K. Nayak, Mohammed K. Al Mesfer, Amjad Ali Pasha, Mohd Danish, Kashif Irshad, Ali J. Chamkha
The present work deals with thermal aspect and entropy of ternary hybrid nanofluid (Graphene, AlO, and MWCNT as nanoparticles and water as base fluid) inside an inclined domain considering heat generation/absorption. The domain possesses triangle-shaped corrugated walls with variable height and a semi-circular heater located on its bottom wall. Finite element method (FEM) is employed to acquire a well-defined
-
Lorentz force and solar energy case study on CNTs and pollytetrafluoroethylene (PTFE) paraffin oil-based hybrid nanofluid flow through a porous divergent/convergent channel Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-23 Sahrish Amin, Ikram Ullah, Saira Shukat, Marouan Kouki, Hijaz Ahmad, Mohammad Mahtab Alam, Hassan Khan
The concept of thermal transfer has fundamental implications in many areas, from the most basic physiological processes to the most complex technological systems. Kerosene oil, often known as paraffin oil, is frequently used as a fuel for jet lighting, engines and heating processes in many technologies. The rate of heat transmission is the fundamental requirement of all phenomena. But this cannot be
-
Sustainable assessment of low viscous biofuel for compression ignition engine using wear debris analysis – Tribological investigation Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-23 Konareddy Harshavardhan Reddy, Nanthagopal Kasianantham
Lemon Peel oil is one of the ecologically friendly biofuels has many significant benefits for power generation applications. Lemon peel oil is extracted from left over rinds of lemon peel by applying steam distillation process. In the present work, long term durability study of compression ignition engines has been conducted using 10 % and 20 % low viscous biofuels with diesel. For 256 h long term
-
A between-wall heat transfer simulation approach based on the lattice Boltzmann method and its application in tube heat transfer analysis Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-23 Yingtao Sun, Di Bian, Zhenhua Wei, Jianfeng Zhou, Chunlei Shao
Between-wall heat transfer is a fundamental physical process. As a typical coupling heat and mass transfer process, between-wall heat transfer-based problems can be solved conveniently on the basis of advanced computation methods among which the lattice Boltzmann method (LBM) has been widely used in the analysis of simple heat and mass transfer cases. To investigate the applicability of LBM in more
-
An improved methodology for thermal calculation and design optimization of a thermosiphon waste heat boiler for CCPP Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-23 Iurii Dolganov, Alexander Epifanov, Pavel Patsurkovskyi, Bohdan Lychko
The study is dedicated to enhancing design and computational methodologies for thermosiphon waste heat boilers (WHB) within combined cycle power plants (CCPP). The optimized WHB design and an improved thermal calculation approach are shown. The efficiency of the proposed WHB has been improved by optimizing the area and arrangement of the surface. The novel method incorporates considerations for the
-
Research on the influence of solar radiation fuzzy adaptive system on the wet and hot environment in greenhouse Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-22 Zhao Mingzhi, Liu Yingjie, Han Zheng, Chang Chun, Bao Daorina, Bakhramzhan Sabirovich Rasakhodzhaev, Akhadou Jobir
Chinese solar greenhouse (CSG) is an artificially constructed agricultural facility that provides a suitable environment for crop growth. However, the imbalanced temperature and humidity phenomenon occurring in greenhouse during summer greatly affects crop yield. This article proposes the application of solar radiation fuzzy adaptive system in greenhouse to address this issue. The design process includes
-
A novel designation of LNG solid oxide fuel cells combined system for marine application Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-21 Phan Anh Duong, Bo Rim Ryu, Nguyen Thi Hai Hau, Jinwon Jung, Jin Kwang Lee, Hokeun Kang
This paper presents a pioneering multigeneration system for marine vessel applications, involving the integration of solid oxide fuel cells (SOFCs) fueled by liquefied natural gas (LNG), coupled with LNG cold energy utilization cycles and exhaust gas heat recovery systems. The system comprises a tandem arrangement of organic Rankine cycle (ORC) and -critical carbon dioxide cycle (TCO), specifically
-
Artificial intelligence -based prediction of heat transfer enhancement in ferrofluid flow under a rotating magnetic field: Experimental study Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-21 Somayeh Davoodabadi Farahani, Abazar Abadeh, Asˈad Alizadeh, Zarindokht Helforoush
The utilization of various techniques, both passive and active, to enhance heat transfer in fluids by scientists is continually advancing. One of the active methods being explored is the impact of a magnetic field (B) on flow to improve heat transfer. This study focuses on experimentally evaluating the effectiveness of B and the rotation of B on heat transfer of ferrofluid. The findings indicate that
-
Experimental study on the performance of micro gas turbines under different intake environments Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-21 Liu Cong, Shi Zhijun, Li Yimin, Zhou Zhongning, Ma Lina
This article uses experimental methods to measure the operational performance and pollutant emissions of micro gas turbines in different intake environments, and analyzes the feasibility of replacing mine ventilation fans with micro gas turbines. The results show that when the compressor efficiency is increased from 70 to 90 , the total efficiency of the micro combustion engine is increased from 28%
-
Corrigendum to “Electro-osmotic transport and thermal energy dynamics of tetra-hybrid nano fluid in complex peristaltic flows” [Case Stud. Therm. Eng. 57 (May 2024) 104317] Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-20 NidhalBen Khedher, Nouman Ijaz, Mohamed Medani, Kamal Barghout, Nidal Abu-Libdeh
-
Optimizing Closed Loop Pulsating Heat Pipes (CL-PHPs) using Taguchi method enhancing thermal performance and operational parameters Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-20 Juluru Pavanu Sai, D. Suneel, Penugonda Suresh Babu, P.V. Elumalai, Arunkumar Karuppasamy, S. Prabhakar
Closed Loop-Pulsating Heat Pipes (CL-PHPs) are a promising heat transfer technologies known for their efficient and versatile thermal management capabilities. This study presents a comprehensive analysis of CL-PHPs employing Taguchi method. It's a statistical technique to optimization enhance their performance. The research involves the utilizing an 8-turn pulsing heat pipe and a variety of working
-
Generalized thermoelastic wave response in a hollow cylinder with temperature-dependent properties based on the memory-dependent derivative of the heat conduction model Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-20 B. Zhang, K.N. Tu, Y.W. Liu, J.G. Yu, L. Elmaimouni
High-temperature pipelines are susceptible to defects due to the long-term service in high-temperature environments. The guided wave technology is promising for online non-destructive testing. Before implementing it in engineering, it is essential to better understand guided wave characteristics, especially attenuation, which significantly decreases the test distance and the resolution. However, describing
-
Enhanced study of phase change thermal storage using active rotating tank wall coupled fins combined with eccentric design Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-20 Xinle Yang, Baofeng Li, Shujuan Bu, Shuai Yan, Junwei Gao, Ning Yu
To address the low thermal conductivity of phase change materials and e improve heat storage, a novel rotating T-LHTESU structure is proposed. Numerical simulations systematically analyze the effects of rotation speed, various eccentricities and wall temperature on the performance of phase change heat storage. The results show that the introduction of rotation in the intermediate sleeve shortens the
-
Investigation of the simultaneous effect of fouling and ambient conditions on cooling performance and water consumption of a wet cooling tower Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-20 Ali Arefimanesh, Mohammad Mahdi Heyhat
-
An investigation shell and tube heat exchanger for cooling system: A case study of biodiesel plants using lauric acid Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-20 Anggara Dwita Burmana, Rondang Tambun, Bode Haryanto, Maya Sarah, Vikram Alexander
Shell and Tube Heat Exchanger (STHE) is a commonly used type of heat exchanger in various industries due to its cost-effectiveness and ease of maintenance. Continuous washing and maintenance of STHE play an important role in influencing both the quality and quantity of production from biodiesel plants. In this particular investigation, the STHE serves as a cooling medium for biodiesel production, with
-
Thermal radiation and propagation of tiny particles in magnetized Eyring–Powell binary reactive fluid with generalized Arrhenius kinetics Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-20 S.O. Salawu, T.A. Yusuf, A.M. Obalalu, E.O. Fatunmbi
The interest in improving the industrial and engineering working fluid for optimal productivity inspired studies on various fluid materials. Cauchy stress tensor fluids with suitable non-Newtonian rheological properties will enhance industrial fluids. Thus, Eyring-Powell fluid with applicable properties serves as a platform to promote engineering base fluid materials. As such, this study examines tiny
-
The integration of double-layer triangular micro-channel in three-dimensional integrated circuits for enhancing heat transfer performance Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-20 Huan Huang, Zong-jie Zeng, Peng Xu
This paper proposed a new heat dissipation structure called double-layer triangular micro-channel (DLTMC) to solve the increasingly serious thermal problem of three-dimensional integrated circuits (3D-ICs). The matrix equation of heat transmission is established to derive steady-state temperature of 3D-ICs with embedded DLTMC, which is based on equivalent thermal resistance network. According to proposed
-
Optimizing the amount of solution in packed liquid desiccant systems for sustained dehumidification Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-19 Xiaobo Zhang, Ziyang Guo, Duu-Jong Lee, Weihong Li
Liquid desiccant dehumidification technology, driven by renewable energy, presents an energy-efficient solution to dehumidification. However, a large solution amount is always configured to extend the dehumidification process and address the unavailability of renewable energy. This is due to a lack of design guidance regarding the optimal desiccant solution amount. This study aims to address this gap
-
Optimisation of design parameters for a novel two-piston ionic compressor applied in hydrogen storage Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-19 Yi Guo, Qi Wang, Yuming Tang, Yuli Wang, Xueyuan Peng
The ionic compressor is an advanced and prospective compression technology for hydrogen storage. However, a complex wave phenomenon was observed inside the compression chamber due to the fluid flow vortex. This complex gas-fluid interaction can be intervened by a new mechanical design of the motion piston. In this paper, the thermodynamic performance of a novel homocentric two-piston ionic compressor
-
Experimental study on flame interaction, gas temperature distribution, and radiative heat flux from two rectangular burning propane sources Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-19 Bo Li, Yangjin Shi, Liangjie Guo, Shaohua Mao, Kaihua Lu
This work experimentally investigates the flame interaction (flame merging and flame height), gas temperature distribution, and radiative heat flux from two rectangular propane burners by varying total heat release rate (80–360 kW) and burner spacing (0–1.28 m). The results show that the dominant mechanism of air entrainment rate changes from spacing to heat release rate with increasing spacing, making
-
Experimental investigation of air step cooling by the combination of spray and chord grid for mine cooling Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-19 Minhua Huang, Haiqiao Wang, Shiqiang Chen, Hui Zhu, Qiaoyun Han, Dong Liu
To address the issues of heat and humidity hazards, as well as insufficient air volume in deep mining operations, a novel cooling method combining spray and chord grid is proposed. To investigate the cooling dynamics, an experimental platform integrating both spray and chord grid components is independently developed. Field boundary conditions are simulated to conduct orthogonal experimental research
-
Numerical investigation of the influence of thermal protective fabric deformation on heat transfer from thermal radiant heat to human skin Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-19 Meiyan Xin, Jiazhen He, Jing Guo, Zhongwei Chen, Aifang He, Yan Chen, Hui Wang
Operators in thermal hazardous environments are more susceptible to burns during physical motion due to the potential deformation of thermal protective clothing. To study the influence of fabric deformation on heat transfer, a model of a three-layer thermal protective fabric system with stretching and compression deformation throughout the heat exposure and cooling phases was established and coupled
-
Thermal performance of a motile-microorganism within the two-phase nanofluid flow for the distinct non-Newtonian models on static and moving surfaces Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-19 Hatem Gasmi, A.M. Obalalu, A.O. Akindele, S.A. Salaudeen, Umair Khan, Anuar Ishak, Amir Abbas, Taseer Muhammad, Syed Modassir Hussain, Ahmed M. Abed
Nanofluid plays a crucial role in addressing the heat transmission challenges facing the industries including chemical processing systems, automobile radiators, spacecraft design, concrete heating, solar thermal conversion systems, etc. Consequently, this research is devoted to analyzing the solar radiation mechanism, thermophoresis and Brownian motion under unique conditions, specifically, temperature
-
Heat transfer treatment of system during freezing with implement of nanoparticles Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-18 Yahya Ali Rothan
The present attempt investigates solidification through a tank equipped with T-shaped fins, a crucial aspect of cold storage technology. Utilizing the Finite Element Method (FEM) for simulation, implementation of a mesh adaptation technique enhances the accuracy of modeling. Equations are derived based on the assumption of neglecting velocity effects during solidification, simplifying the mathematical
-
Experimental investigation of performance, emission, and combustion characteristics of a variable compression ratio engine using waste cooking vegetable oils blended with diesel Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-18 Bichitra Nanda Behera, Tapano Kumar Hotta
The availability of crude oil and petroleum products has become scarce and costly over the years leading to a stiff rise in engine fuel. Due to the depletion of conventional fuels; alternative fuels are gaining importance in recent times and Waste Cooking Vegetable Oils (WCVOs) are the viable option for the same. The present study highlights the performance, emission, and combustion characteristics
-
Comprehensive numerical modeling of intermittent flow cooling with enhanced photovoltaic efficiency in PVT/NPCM systems Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-18 Hui Chen, Jianfeng Zhang, Ming Shen, Hui Fang, Yiren Ma
The photoelectric conversion efficiency of photovoltaic thermal (PVT) systems is a key concern in solar energy research. The widespread use of continuous nanofluid cooling in PVT/NPCM (Nano-Enhanced Phase Change Material) systems leads to heightened energy consumption. In order to improve efficiency of the PVT/NPCM systems, a two-dimensional transient heat transfer numerical model is established to
-
An experimental approach to heat loss measurement of horizontal two-phase flow boiling in low-pressure low-flow (LPLF) conditions Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-18 Mehdi Kabir
A crucial parameter remarkably influencing the reliability and accuracy of vapor quality measurements in flow boiling experiments is the measurement of heat loss. The latent heat loss estimation in two-phase flow boiling sounds more demanding than that of sensible heat loss in single-phase flow experiments. To accurately investigate the impact of vapor quality on the heat transfer coefficient of flow
-
Ignition and combustion of Al–Mg–Li alloy particles at elevated pressures Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-18 Yuezu Miao, Shengji Li, Yanjing Yang, Xiaohong Zhang, Xuefeng Huang, Hongyan Li, Zhao Qin
Al–Mg–Li ternary alloy particles can be a promising metal additive to replace aluminum in solid propellants to improve combustion efficiency by reducing agglomeration during combustion. In this paper, Al–Mg–Li ternary alloy was prepared and its basic physical and chemical characterization parameters were obtained by SEM-EDS, ICP-AES, and XRD analysis. The ignition and combustion characteristics of
-
Thermal analysis of 4-phase 8/6 SRM for EV application Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-18 S. Rani, R. Jayapragash
This article provides a comprehensive analysis of the thermal characteristics of a 4-phase 8/6 switching reluctance motor (SRM) designed for use in an e-rickshaw (3-wheeler) application. The determination of core and copper losses is achieved through electromagnetic analysis using Finite Element Analysis (FEA). The analysis is conducted via MOTORCAD, a multiphysics design software. This work includes
-
Effect of mechanical stirring on heat transfer and flow of crude oil in storage tanks under different heating methods Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-18 Mingyu Lei, Jian Zhao, Hongtao Wang, Xingchao Zhou
Mechanical stirring can promote uniform distribution of crude oil temperature and increase the heating rate, but the effect is different for different heating methods in crude oil storage tank. In this paper, jet heating and tubular heating are used as the heating methods in the tank, the physical and mathematical models under the synergy of two heating methods and mechanical stirring are established
-
Thermodynamic analysis of pavement roads underground heat harvesting through water pipelines for effective management of urban heat island effect integrated to space cooling applications Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-18 Fariha Niaz, Yusuf Bicer, Luai El-Sabek, Abdulkarem I. Amhamed
Urban heat island effect drastically affects the climate by approximately increasing the surroundings temperature by 2°C, thus, rises the energy demand for space cooling. As roads/asphalt pavements makes 20–30% of urban areas that are fully exposed to solar radiations, this unused energy can be utilized by laying down a network of underground cross-linked polyethylene (PEX) pipes full of heat transfer
-
Corrigendum to “A new optimized artificial neural network model to predict thermal efficiency and water yield of tubular solar still” [Case Stud. Therm. Eng. 30 (2022) 101750] Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-17 Essam B. Moustafa, Ahmed H. Hammad, Ammar H. Elsheikh
-
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
-
A novel zero emission combined power and cooling system for concentrating solar power: Thermodynamic and economic assessments and optimization Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 Yan Sun, Hong-Wei Li, Di Wang, Chang-He Du
-
Lattice Boltzmann study on magnetohydrodynamic double-diffusive convection in Fe3O4–H2O nanofluid-filled porous media Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 Yanyan Feng, Cunhai Wang
Magnetohydrodynamic double-diffusive convection (MHD-DDC) in porous media has substantial significance in broad applications. However, due to the complexity of the DDC problems involving nanofluid, porous media, and external magnetic field at the same time, the MHD-DDC in nanofluid-filled porous media has rarely been studied. Besides, previous research on MHD convection problems usually focuses on
-
Experimental studies of semi hermetic single screw compressor with variable speed in heat pump Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 Qiangyu Wen, Ruiping Zhi, Yuting Wu, Biao Lei, Guohong Ban
A single screw compressor is widely studied as a promising compressor technology applied in heat pumps. The capacity control mechanism is required for the compressor to satisfy the actual heating capacity under different working conditions. In this paper, the frequency conversion regulating mechanism by changing the motor rotating speed is employed to control the capacity of the single screw compressor
-
Comprehensive experimental investigations on Co-combustion dynamics and multi-pollutant formation characteristics of coal gangue and biomass in oxy-fuel atmosphere Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 Qingxiang Wang, Lingfei Liu, Maiwei Chen, Xiao Yang, Junqi Liu, Yaojie Tu, Shilin Wang
Based on the co-combustion principle of coal gangue and biomass, the combustion characteristics, kinetic mechanisms, and pollutant emission characteristics of mixed coal gangue and wheat straw in oxy-fuel atmosphere were investigated by conducting experiments with a thermogravimetric analyzer and a tube furnace in this paper. The results indicated that the comprehensive combustion characteristics,
-
Employing RSM to model thermal performance and exergy destruction of LS-3 parabolic trough collector by coupling MCRT and CFD techniques Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 Wajdi Rajhi, S.A.M. Mehryan, Nasrin B.M. Elbashir, Hikmet Ş. Aybar, Walid Aich, Aboulbaba Eladeb, Lioua Kolsi
This study investigates the thermal performance and exergy destruction of parabolic trough collector by Response Surface Methodology. This collector is simulated by the Monte Carol Ray Tracing method and the results are coupled to the Computational Fluid Dynamics. Thermo-hydraulic performance and the characteristics of the thermodynamics second law are studied with the turbulence-inducing elements
-
Numerical simulations of thermal heat conservation in hybrid nanofluids with chemical reaction, viscous dissipation, and inclination Case Stud. Therm. Eng. (IF 6.8) Pub Date : 2024-04-16 J. Manigandan, D. Iranian, Ilyas Khan, Najla A. Mohammed, Hadil Alhazmi
In this work numerical solutions using finite difference method of hybrid nanofluids (TiO–Cu/Water) over an inclined plate are obtained. The nanoparticles are taken of volume fraction of size less than or equal to 0.05. Heat and mass transfers are studied. Chemical reaction and viscous dissipation effect are also examined. The results are computed and plotted for various parameters such as radiation