Engineering Science and Technology-An International Journal-Jestech最新文献

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Hybridization of the Snake Optimizer and Particle Swarm Optimization for continuous optimization problems 连续优化问题的Snake优化器与粒子群优化的杂交
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-05-17 DOI: 10.1016/j.jestch.2025.102077
Abdülkadir Pektaş , Mehmet Hacıbeyoğlu , Onur İnan
{"title":"Hybridization of the Snake Optimizer and Particle Swarm Optimization for continuous optimization problems","authors":"Abdülkadir Pektaş ,&nbsp;Mehmet Hacıbeyoğlu ,&nbsp;Onur İnan","doi":"10.1016/j.jestch.2025.102077","DOIUrl":"10.1016/j.jestch.2025.102077","url":null,"abstract":"<div><div>The Snake Optimizer (SO), despite its reasonable performance in a variety of continuous optimization problems, struggles by inefficient exploration, stagnation in local optima, and a slow convergence. To improve exploration, accelerate convergence, and avoid local optima, the velocity vector of Particle Swarm Optimization (PSO) was integrated into the Snake Optimizer (SO), resulting in the proposal of the Snake Optimizer Particle Swarm Optimization (SO-PSO) metaheuristic method. To evaluate the applicability of the proposed SO-PSO method, it was evaluated on continuous numerical problems (CEC-2017) and seven real-world engineering problems, benchmarking its performance against contemporary metaheuristic algorithms, including WOA, PSO, GWO, EO, LSHADE, and SO. A comparative analysis of six metaheuristics and SO-PSO was conducted on 30 shifted and rotated benchmark problems across dimensions and population sizes of 30, 50, and 100, as well as seven engineering challenges with population sizes of 30, 50, and 100, each evaluated over 30 independent runs. According to the Friedman ranking results from 270 experimental tests on CEC17 functions, SO-PSO, WOA, PSO, GWO, EO, LSHADE, and SO achieved rankings of <strong>1.62</strong>, 6.5, 5.91, 4.18, 1.98, 4.53, and 3.28, respectively. Regarding the results of the engineering functions, SO-PSO, WOA, PSO, GWO, EO, LSHADE, and SO achieved rankings of <strong>1.82</strong>, 6.19, 3.95, 4, 3.38, 4.34, and 4.33, respectively. Besides, the proposed SO-PSO shows statistically significant difference from other methods in <strong>96.42 %</strong> and <strong>93.65 %</strong> of experimental tests obtained from Wilcoxon’s signed-rank test in CEC17 functions and engineering problems, respectively. Consequently, SO-PSO demonstrated superior performance over other metaheuristics based on experimental and statistical test results.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"67 ","pages":"Article 102077"},"PeriodicalIF":5.1,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated biomimetic biphasic structures for high-strain-rate resistance and thermal insulation: Design, fabrication and performance characterization 集成仿生双相结构的高应变率电阻和隔热:设计,制造和性能表征
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-05-16 DOI: 10.1016/j.jestch.2025.102088
Lijia Guo , Zhichao Dong , Zihao Chen , Xiaoyu Wang , Weijie Li , Ying Li
{"title":"Integrated biomimetic biphasic structures for high-strain-rate resistance and thermal insulation: Design, fabrication and performance characterization","authors":"Lijia Guo ,&nbsp;Zhichao Dong ,&nbsp;Zihao Chen ,&nbsp;Xiaoyu Wang ,&nbsp;Weijie Li ,&nbsp;Ying Li","doi":"10.1016/j.jestch.2025.102088","DOIUrl":"10.1016/j.jestch.2025.102088","url":null,"abstract":"<div><div>Addressing the critical need for multifunctional protective structures in military vehicles, this paper proposes three novel biphasic structures integrating high-strain-rate resistance and thermal insulation. Natural organisms have evolved lightweight, strong, and durable structures through long-term evolutionary adaptation. Guided by the tenets of biomimicry, three high-strain-rate resistant structural frameworks are firstly proposed and fabricated using 3D printing technology. Biphasic structures are fabricated by infusing phenolic resin into three novel structural frameworks through solution impregnation and thermal curing, followed by room temperature drying. The high-strain-rate resistances of the three biphasic structures are analyzed and compared employing Split Hopkinson Pressure Bar (SHPB) experiments, with the deformation process recorded via a high-speed camera. Based on micro-computerized tomography (μ-CT) images, the structural characteristics and porosity of the three biphasic structures after SHPB experiment are acquired. The thermal insulation properties of the structures are characterized using hot plate test and butane torch test. The dynamic mechanical properties and heat transfer mechanisms of the three biphasic structures are further analyzed using finite element simulations. The results show that the three structures exhibit both high-strain-rate resistance and thermal insulation properties, with the G-TPMS biphasic structure having the superior overall performance.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"67 ","pages":"Article 102088"},"PeriodicalIF":5.1,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing energy management in battery electric vehicles: A novel approach based on fuzzy Q-learning controller 加强纯电动汽车能量管理:一种基于模糊q -学习控制器的新方法
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-05-07 DOI: 10.1016/j.jestch.2025.102070
Salma Ariche , Zakaria Boulghasoul , Abdelhafid El Ouardi , Abdelhadi Elbacha , Abdelouahed Tajer , Stéphane Espié
{"title":"Enhancing energy management in battery electric vehicles: A novel approach based on fuzzy Q-learning controller","authors":"Salma Ariche ,&nbsp;Zakaria Boulghasoul ,&nbsp;Abdelhafid El Ouardi ,&nbsp;Abdelhadi Elbacha ,&nbsp;Abdelouahed Tajer ,&nbsp;Stéphane Espié","doi":"10.1016/j.jestch.2025.102070","DOIUrl":"10.1016/j.jestch.2025.102070","url":null,"abstract":"<div><div>The global emphasis on sustainable transportation is driving the increasing adoption of Battery Electric Vehicles (BEVs), which offer independence from fossil fuels and zero emissions during operation. However, optimizing energy efficiency and vehicle performance in BEVs remains a significant challenge due to the dynamic nature of driving conditions. Current power control methods often struggle to adapt to these varying conditions, leading to suboptimal energy distribution and reduced performance. This paper presents a novel approach to power control in BEVs using a Fuzzy Q-learning Controller (FQLC), which dynamically adjusts the motor power coefficient based on real-time driving conditions. The FQLC optimizes energy distribution to the electric motor by adapting to factors such as vehicle speed, road slope, and battery state of charge (SOC). A comparative analysis between the Fuzzy Logic Controller (FLC) and the proposed FQLC demonstrates the advantages of the new system. The Modified Mean Absolute Error (MMAE) is used to quantitatively evaluate performance across various driving scenarios. The results show that the FQLC significantly outperforms the FLC, achieving MMAE values as low as 0.01, indicating substantial reductions in error rates. In the performed tests, the FQLC’s ability to manage energy use contributed to range extensions in certain cases, achieving an increase of up to 11 km. These findings highlight the FQLC potential as an innovative solution for BEV power control.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"67 ","pages":"Article 102070"},"PeriodicalIF":5.1,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Front Matter 1 - Full Title Page (regular issues)/Special Issue Title page (special issues) 封面1 -完整的扉页(每期)/特刊扉页(每期)
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-05-06 DOI: 10.1016/S2215-0986(25)00139-9
{"title":"Front Matter 1 - Full Title Page (regular issues)/Special Issue Title page (special issues)","authors":"","doi":"10.1016/S2215-0986(25)00139-9","DOIUrl":"10.1016/S2215-0986(25)00139-9","url":null,"abstract":"","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"66 ","pages":"Article 102084"},"PeriodicalIF":5.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of construction and demolition waste prediction post-earthquake disasters 地震灾后建筑垃圾预测分析
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-05-05 DOI: 10.1016/j.jestch.2025.102078
Ugur Emre Temelli , Naim Sezgin , Bilge Ozdogan Cumali , Semih Nemlioglu
{"title":"Analysis of construction and demolition waste prediction post-earthquake disasters","authors":"Ugur Emre Temelli ,&nbsp;Naim Sezgin ,&nbsp;Bilge Ozdogan Cumali ,&nbsp;Semih Nemlioglu","doi":"10.1016/j.jestch.2025.102078","DOIUrl":"10.1016/j.jestch.2025.102078","url":null,"abstract":"<div><div>The proper management of construction and demolition wastes (CDWs) involves understanding their origins, generation, and efficient collection methods. This is especially crucial in developing countries experiencing rapid urbanization and industrialization, where new construction and the reconstruction of older, lower-quality buildings are common practices. Governmental encouragement for the reconstruction of weak buildings, often due to dangerous conditions or natural disasters like earthquakes, further contributes to the generation of vast amounts of CDWs. In this study, the masses and volumes of CDWs resulting from the Kahramanmaras and Hatay earthquakes that occurred on February 6th, 2023, and the anticipated Istanbul earthquake in Turkiye were estimated. Additionally, the amounts of mineral fraction wastes (MFWs) and scrap iron wastes (SIWs) within these CDWs were calculated, along with their economic values. The quantitative estimations of waste generation for CDW were determined as 396,473,616 tons and 293,684,160 m<sup>3</sup> for Kahramanmaras and Hatay earthquakes, and 393,456,358 tons and 291,449,154 m<sup>3</sup> for the anticipated Istanbul earthquake, respectively. The economic values of recyclable materials (MFWs and SIWs) were calculated as €935,677,734 and €1,268,715,571 for Kahramanmaras and Hatay earthquakes, and €928,557,005 and €1,259,060,346 for Istanbul, respectively.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"67 ","pages":"Article 102078"},"PeriodicalIF":5.1,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Two-dimensional spatial orientation relation recognition between image objects 图像对象间二维空间方向关系识别
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-05-03 DOI: 10.1016/j.jestch.2025.102074
Gong Peiyong , Zheng Kai , Jiang Yi , Zhao Huixuan , Huai Honghao , Guan Ruijie
{"title":"Two-dimensional spatial orientation relation recognition between image objects","authors":"Gong Peiyong ,&nbsp;Zheng Kai ,&nbsp;Jiang Yi ,&nbsp;Zhao Huixuan ,&nbsp;Huai Honghao ,&nbsp;Guan Ruijie","doi":"10.1016/j.jestch.2025.102074","DOIUrl":"10.1016/j.jestch.2025.102074","url":null,"abstract":"<div><div>Recent advances in computer vision have concentrated on comprehension of the semantic features of images, particularly the spatial relations between objects—a fundamental semantic feature of visual scene understanding. This study systematically addresses the recognition problem of two-dimensional spatial orientation relations and develops the Target Spatial Orientation Vector Field (TSOVF) algorithm, a novel end-to-end framework to explicitly model spatial orientation dependencies. TSOVF algorithm introduces the learnable spatial orientation vector field to effectively encode the spatial orientation relation into a deep convolutional neural network model. The proposed architecture features a dual-branch design: the T-branch identifies object central points and classifies categories via keypoint estimation, while the S-branch constructs a pixel-level spatial orientation vector field. Each vector in this field quantifies the angular orientation between object pairs, with aggregated vector data determining the final spatial relation category. A dedicated fusion module synthesizes features from both branches, generating a structured triple list that documents detected objects, their inter-object spatial orientations, and associated confidence scores. Evaluated on a PASCAL VOC2012-derived dataset, TSOVF algorithm achieves 94.8 % global accuracy and a class-balanced geometric mean (G-mean) of 0.798, demonstrating robust performance across various spatial configurations. For dominant orientation categories, the algorithm attains up to 95.9 % precision and 94.7 % F1-score, establishing it as a foundational benchmark for spatial relation recognition. These results validate TSOVF’s capacity to advance fine-grained visual relationship detection while providing a reproducible framework for future research in spatial-semantic analysis.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"67 ","pages":"Article 102074"},"PeriodicalIF":5.1,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Dual Three-Phase configurations and interleaved carrier-based PWM techniques on the DC-Link current stress 双三相配置和基于交错载波的PWM技术对直流链路电流应力的影响
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-05-03 DOI: 10.1016/j.jestch.2025.102068
Ander DeMarcos , Milijana Odavic , Endika Robles , Unai Ugalde , Jon Andreu
{"title":"Effect of Dual Three-Phase configurations and interleaved carrier-based PWM techniques on the DC-Link current stress","authors":"Ander DeMarcos ,&nbsp;Milijana Odavic ,&nbsp;Endika Robles ,&nbsp;Unai Ugalde ,&nbsp;Jon Andreu","doi":"10.1016/j.jestch.2025.102068","DOIUrl":"10.1016/j.jestch.2025.102068","url":null,"abstract":"<div><div>Dual Three-Phase (DTP) winding configurations are gaining importance in automotive powertrains, where the DC-Link capacitor plays a critical role in terms of power density and reliability, as it accounts for approximately 40% of the inverter’s volume and about 30% of its failures. This work systematically analyses the influence of various DTP configurations (S0-DTP, A30-DTP, S60-DTP) and DTP-specific Double Zero-Sequence Injection (DZSI) PWM techniques on the DC-Link capacitor current spectrum to minimize its RMS value. Using the Double Fourier Integral formalism, this work derives analytical expressions for input current harmonics, identifies dominant ripple components, and assesses interleaving strategies to suppress these harmonics, thereby reducing RMS current stress on the capacitor. The findings are validated through experimental measurements, which confirm that proper selection of DZSI-PWM techniques and interleaving angles leads to up to 85% reduction in capacitor RMS current stress compared to standard non-interleaved modulation, thus enhancing power converter reliability without additional hardware modifications. These insights offer practical design guidelines for electric vehicle powertrains and high-performance multiphase inverters.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"67 ","pages":"Article 102068"},"PeriodicalIF":5.1,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel pixel antenna by using a genetic algorithm for Wi-Fi 6E applications 采用遗传算法的新型像素天线,用于Wi-Fi 6E应用
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-04-30 DOI: 10.1016/j.jestch.2025.102072
Kayhan Çelik , Bekir Dursun , Javed Iqbal
{"title":"A novel pixel antenna by using a genetic algorithm for Wi-Fi 6E applications","authors":"Kayhan Çelik ,&nbsp;Bekir Dursun ,&nbsp;Javed Iqbal","doi":"10.1016/j.jestch.2025.102072","DOIUrl":"10.1016/j.jestch.2025.102072","url":null,"abstract":"<div><div>The number of wireless devices is increasing daily, and these gadgets have become indispensable in people’s daily lives, requiring speedy and unlimited internet access. This may cause the currently used frequency bands to be insufficient or overcrowded. Adding the 6 GHz spectrum as a Wi-Fi 6E may assist in reducing traffic on other bands. However, the large bandwidth raises antenna design difficulties, and this article brings a new antenna proposal to this issue. It is a novel pixel patch antenna optimized by a metaheuristic optimization algorithm for Wi-Fi 6E applications. The shape of the radiating patch is determined using genetics, which is a basic algorithm based on population to achieve wideband operation. The antenna radiating element is divided into small pixel-shaped squares, then, some of them are removed for broadband operation. The antenna is constructed with the FR4 dielectric material, and it has a compact volume of 25 x 25 x 1.6 mm<sup>3</sup>. The measured impedance bandwidth of the antenna varies between 5.75 GHz and 8.46 GHz, with the maximum radiation efficiency and a gain of values of 67 % and 4.5 dBi. As a result, the suggested antenna may be employed for Wi-Fi 6E applications.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"67 ","pages":"Article 102072"},"PeriodicalIF":5.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stabilization of recycled and pure soils using mussel shell powder and cement: Experimental evaluation of strength and durability 用贻贝粉和水泥稳定再生土和纯土:强度和耐久性的实验评价
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-04-30 DOI: 10.1016/j.jestch.2025.102073
Tugba Eskisar, Esma Rahat
{"title":"Stabilization of recycled and pure soils using mussel shell powder and cement: Experimental evaluation of strength and durability","authors":"Tugba Eskisar,&nbsp;Esma Rahat","doi":"10.1016/j.jestch.2025.102073","DOIUrl":"10.1016/j.jestch.2025.102073","url":null,"abstract":"<div><div>The integration of industrial and biogenic waste materials in soil stabilization provides an environmentally sustainable alternative to conventional binders. This study evaluates the influence of mussel shell powder (MSP) on both untreated, cemented, and recycled soils, where the recycled soil was initially stabilized with calcium carbide residue, cured for one year, ground into powder, and then re-treated with MSP. Unconfined compression, ultrasonic pulse velocity, and direct shear tests were conducted to assess the strength, compaction, and shear behavior of MSP-stabilized pure, recycled, and cemented soils. The results indicate that MSP addition reduced plasticity and improved soil workability. In recycled soils, 5% MSP provided optimal strength enhancement, while in cemented soils, 20% MSP was required for significant strength gains due to its role in secondary cementation. Freeze-thaw tests demonstrated that MSP-treated soils exhibited up to a 40% reduction in strength loss compared to untreated samples, improving durability in cold climates. The ultrasonic pulse velocity measurements showed strong correlations with unconfined compressive strength, confirming its potential as a non-destructive assessment method for stabilized soils. These findings highlight the potential of MSP as a sustainable stabilizer for improving soil mechanical properties, durability, and resistance to freeze–thaw cycles.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"67 ","pages":"Article 102073"},"PeriodicalIF":5.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced thermal management of lithium-ion batteries using hybrid nanofluids in finned mini-channels: Energy and entropy analyses 利用混合纳米流体在鳍状微通道中增强锂离子电池的热管理:能量和熵分析
IF 5.1 2区 工程技术
Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-04-26 DOI: 10.1016/j.jestch.2025.102069
Z. Esmaeili , M. Sheikholeslami
{"title":"Enhanced thermal management of lithium-ion batteries using hybrid nanofluids in finned mini-channels: Energy and entropy analyses","authors":"Z. Esmaeili ,&nbsp;M. Sheikholeslami","doi":"10.1016/j.jestch.2025.102069","DOIUrl":"10.1016/j.jestch.2025.102069","url":null,"abstract":"<div><div>Efficient thermal management is crucial for maintaining the safety and lifespan of battery packs, particularly during high-discharge operations. This study investigates an innovative approach to cooling these batteries by modifying traditional rectangular mini-channels with bio-inspired fins, modeled after dolphin dorsal shapes and fish contours. Unlike conventional cooling designs, these structures enhance fluid mixing and heat transfer efficiency when paired with a hybrid nanofluid (Fe<sub>3</sub>O<sub>4</sub>–SWCNT in water) under laminar flow conditions. A time-dependent numerical simulation was conducted to replicate unsteady heat generation in battery cells, and the results were validated against established studies. The findings indicated that dolphin dorsal fins and fish-shaped fins reduce total entropy generation by 28.59 % and 14.12 %, respectively, compared to a standard mini-channel. Additionally, the convective heat transfer coefficient improved by 20.18 % with dolphin fins and 43.04 % with fish fins, demonstrating superior thermal regulation. The hydrothermal performance, evaluated using the performance evaluation criterion (PEC), showed that the fish-shaped fins outperformed dolphin fins by 42.87 %, achieving a PEC value of 1.12. These results highlight the effectiveness of bio-inspired fin geometries in optimizing battery cooling systems, offering a promising strategy for improving the efficiency and longevity of batteries in electric vehicles.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"66 ","pages":"Article 102069"},"PeriodicalIF":5.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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