Case Studies in Thermal Engineering最新文献

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Study on the explosion characteristics of alcohol vapor cloud-feed powder dust cloud mixture during the deep processing of waste mash 废醪深加工中酒精蒸气云-进料粉尘云混合物爆炸特性的研究
IF 6.4 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-20 DOI: 10.1016/j.csite.2025.106538
Huiqiang Ma , Yihan Zhang , Yuyuan Zhang , Bo Liu , Daoyong Zhu , Kaili Xu , Yantao Yao , Junpeng Wang , Tengteng Hao , Jishuo Li , Haihan Zhang , Zongjun Cheng
{"title":"Study on the explosion characteristics of alcohol vapor cloud-feed powder dust cloud mixture during the deep processing of waste mash","authors":"Huiqiang Ma ,&nbsp;Yihan Zhang ,&nbsp;Yuyuan Zhang ,&nbsp;Bo Liu ,&nbsp;Daoyong Zhu ,&nbsp;Kaili Xu ,&nbsp;Yantao Yao ,&nbsp;Junpeng Wang ,&nbsp;Tengteng Hao ,&nbsp;Jishuo Li ,&nbsp;Haihan Zhang ,&nbsp;Zongjun Cheng","doi":"10.1016/j.csite.2025.106538","DOIUrl":"10.1016/j.csite.2025.106538","url":null,"abstract":"<div><div>The explosion limits (LEL&amp;UEL), maximum explosion pressure (<em>P</em><sub>max</sub>), and minimum ignition energy (MIE) of mixtures composed of four combustible feed dusts and inflammable alcohol vapor are investigated in a modified 20-L spherical explosion system and a modified MIE test system. The explosivity of vapor-dust mixtures is tested according to national standards GB/T16425, GB/T16426 and GB/T16428, using four combustible feed dusts mixed with inflammable alcohol vapor. The results show that adding low concentration alcohol vapor can broaden the range of explosion limits for feed dusts. Alcohol vapor affects both the <em>P</em><sub>max</sub> and MIE of feed dust in a unimodal pattern. There is a critical value for the increase of feed dust explosion parameters by alcohol vapor: 10 vol% alcohol vapor. Below this value, alcohol vapor increases the explosivity of feed dusts remarkably. Above this value, it reduces their explosivity. Finally, the influence of low concentration and high concentration alcohol vapor on feed dusts is examined from the ignition process of alcohol vapor-feed dust mixture. According to the experimental data, we also optimized the explosion discharge area of the auxiliary dust collector of the waste mash drying system. The research conclusion provides a technical means for the safety issues of gas-solid mixed dust removal systems.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"73 ","pages":"Article 106538"},"PeriodicalIF":6.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335506","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
The thermal conductivity characteristics and prediction models of limestone sand-yellow soil mixtures 灰岩-砂黄混合土导热特性及预测模型
IF 6.4 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-20 DOI: 10.1016/j.csite.2025.106545
Xiong Liu , Ruiyong Mao , Zujing Zhang , Hongwei Wu , Xing Liang , Jing Chen
{"title":"The thermal conductivity characteristics and prediction models of limestone sand-yellow soil mixtures","authors":"Xiong Liu ,&nbsp;Ruiyong Mao ,&nbsp;Zujing Zhang ,&nbsp;Hongwei Wu ,&nbsp;Xing Liang ,&nbsp;Jing Chen","doi":"10.1016/j.csite.2025.106545","DOIUrl":"10.1016/j.csite.2025.106545","url":null,"abstract":"<div><div>To optimize the backfilling of ground source heat pump drilling mud and boost the thermal conductivity of drilling materials, this study proposes using a mixture of limestone sand and loess, typical in karst regions, as backfill for buried pipe heat exchangers. Through indoor experiments, 152 limestone sand-loess mixtures were prepared and their thermal conductivities tested. Analyses explored the impacts of limestone sand content, moisture content, dry density, and particle size distribution. Results show that artificially graded materials generally outperform natural ones in thermal conductivity, with grading's influence decreasing as moisture rises. At 8 % moisture, grading increases thermal conductivity by 18.57 % (0.069–0.124 W/(m·K)); at 20 %, the increase is 7.63 %. High moisture and limestone sand content can yield a thermal conductivity of 1.508 W/(m·K). When using graded materials, geological conditions and aquifers should be considered, and they suit strata with moderate moisture. A backpropagation neural network - based predictive model for thermal conductivity, developed from experimental data, achieved 6.4 % average absolute percentage error, indicating good accuracy.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"73 ","pages":"Article 106545"},"PeriodicalIF":6.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335501","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
Preliminary design and key components validation of modular recuperated micro gas turbine for small unmanned systems 小型无人系统模块化回热式微燃气轮机初步设计及关键部件验证
IF 6.4 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-20 DOI: 10.1016/j.csite.2025.106547
Zuojun Wei , Wenhua Duan , Haotian Gao , Cunju Wei , Guangming Ren , Xiaohua Gan
{"title":"Preliminary design and key components validation of modular recuperated micro gas turbine for small unmanned systems","authors":"Zuojun Wei ,&nbsp;Wenhua Duan ,&nbsp;Haotian Gao ,&nbsp;Cunju Wei ,&nbsp;Guangming Ren ,&nbsp;Xiaohua Gan","doi":"10.1016/j.csite.2025.106547","DOIUrl":"10.1016/j.csite.2025.106547","url":null,"abstract":"<div><div>This paper presents an overview of the preliminary design of a modular recuperated micro gas turbine for small unmanned systems, demonstrating the technical feasibility of this integrated power solution. Analysis identifies a pressure ratio near 5.0 as optimal and feasible for the high-power scheme, balancing flow-specific power and thermal efficiency. Electrical power outputs between 15 kW and 150 kW are achievable, with specific fuel consumption (SFC) lower than 0.225 kg/(kW∙h) for outputs exceeding 50 kW. At 150 kW point, thermal efficiency for electricity reaches 37.3 % with an SFC of 0.2294 kg/(kW∙h). The low-power scheme achieves 0.78 isentropic efficiency at a pressure ratio of 2.85, with turbine efficiency higher than 0.825. The high-power scheme's compressor achieves an efficiency of 0.798 with a pressure ratio of 5.08, and the turbine efficiency reaches 0.897. Experimental testing of the single-can combustor shows a total pressure loss of 3.29 % and combustion efficiency of 97.13 % at design point. The cross-corrugated primary surface recuperator achieves an effectiveness of 0.9195 and total pressure loss of 3.69 % at a heat-weight ratio of 7.76 kW/kg.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"73 ","pages":"Article 106547"},"PeriodicalIF":6.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335500","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
Fuzzy LQR-Based Control to Ensure Comfort in HVAC System with Two Different Zones 基于模糊lqr的两区空调系统舒适性控制
IF 6.8 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-20 DOI: 10.1016/j.csite.2025.106544
Elif Çinar, Tayfun Abut
{"title":"Fuzzy LQR-Based Control to Ensure Comfort in HVAC System with Two Different Zones","authors":"Elif Çinar, Tayfun Abut","doi":"10.1016/j.csite.2025.106544","DOIUrl":"https://doi.org/10.1016/j.csite.2025.106544","url":null,"abstract":"Heating, ventilation, and air conditioning (HVAC) systems are control systems that ensure indoor temperature and air quality meet desired conditions. In this study, a novel control strategy is proposed for an HVAC system operating under two distinct environmental zones with variable flow rates, addressing control challenges arising from external disturbances such as ambient temperature and humidity changes. In the system design, mathematical models were obtained, including the heat losses of two zones to the outdoor environment, as well as the heat transfer dynamics in the cooling unit, fans, and air ducts. For system control, considering ambient temperature, humidity, and variable flow rate, the required airflow was achieved by controlling the dampers placed in the indoor air inlet ducts. The core novelty of this work lies in the development and comparison of advanced control algorithms, including the Linear Quadratic Regulator (LQR), a Particle Swarm Optimization (PSO)-based LQR, and a newly designed PSO-based Fuzzy LQR (FLQR) controller. Comfort conditions were achieved by cooling the temperatures of two different regions from the ambient temperature to approximately 7 <ce:sup loc=\"pre\">o</ce:sup>C. The proposed FLQR controller combines the adaptability of fuzzy logic with the optimization capabilities of PSO to enhance system responsiveness and occupant comfort. Simulation results show that the FLQR method improves comfort performance by 90.4% for Zone-1 and 88.1% for Zone-2 compared to conventional LQR. The effectiveness of the proposed method (FLQR) is demonstrated through a comprehensive performance evaluation using Mean Squared Error (MSE) metrics, confirming its potential for intelligent HVAC applications.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"65 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335502","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
Application of Kolmogorov-Arnold Network (KAN) for Solitary-Peakon Investigation of Lax Model Kolmogorov-Arnold网络(KAN)在Lax模型的孤-峰调查中的应用
IF 6.8 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-20 DOI: 10.1016/j.csite.2025.106537
Muhammad Wajahat Anjum, Sana Ullah Saqib, Yin-Tzer Shih, Israr Ul Hassan, Adnan, Ines Hilali Jaghdam, Mouloud Aoudia, Lioua Kolsi
{"title":"Application of Kolmogorov-Arnold Network (KAN) for Solitary-Peakon Investigation of Lax Model","authors":"Muhammad Wajahat Anjum, Sana Ullah Saqib, Yin-Tzer Shih, Israr Ul Hassan, Adnan, Ines Hilali Jaghdam, Mouloud Aoudia, Lioua Kolsi","doi":"10.1016/j.csite.2025.106537","DOIUrl":"https://doi.org/10.1016/j.csite.2025.106537","url":null,"abstract":"This study utilizes novel Kolmogorov-Arnold Networks to solve the fifth-order KdV-Lax problem, employing both periodic and Peakon solutions. Several soliton solutions, including solitary wave, Peakon forms, are presented using the KANs technique for the Lax problem of fifth order. The novelty of this investigation lies in its combination of a practical numerical approach for KANs with a powerful analytical strategy (the exp-function method) to verify reliability and authenticity, utilizing illustrations and tables to identify various types of soliton solutions. Although KANs provide an approximation for solving the KdV-Lax equation, their ability to tackle complex problems makes them a viable choice when an analytical solution is not possible. The use of KANs over the exponential function method's approximate solution is exceptional; it offers a thorough analysis of the solution's uniqueness and convergence using loss plots, error histograms, mean square logarithmic error, mean poisson deviation, and regression plots, among others. The numerical results of thorough simulations, with minimal error (<ce:math altimg=\"si1.svg\"></ce:math>), regression metric value (<ce:math altimg=\"si2.svg\"></ce:math>), and histogram with the majority of instances (<ce:math altimg=\"si3.svg\"></ce:math>) nearly close to zero, unquestionably supported or confirmed the accuracy of KANs against the analytical (exp-function) method. Furthermore, the robustness of the KANs model is demonstrated by consistently low absolute error metrics.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"38 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335503","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
ANALYZING AND IMPROVING THE THERMAL PERFORMANCE OF ROAD NETWORK WEIGHING STATIONS THROUGH MEASUREMENTS AND CFD MODELING 通过测量和CFD建模,分析和改进路网称重站的热性能
IF 6.8 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-19 DOI: 10.1016/j.csite.2025.106543
Mohammadreza Tohidi, Jean Rouleau, Louis Gosselin
{"title":"ANALYZING AND IMPROVING THE THERMAL PERFORMANCE OF ROAD NETWORK WEIGHING STATIONS THROUGH MEASUREMENTS AND CFD MODELING","authors":"Mohammadreza Tohidi, Jean Rouleau, Louis Gosselin","doi":"10.1016/j.csite.2025.106543","DOIUrl":"https://doi.org/10.1016/j.csite.2025.106543","url":null,"abstract":"Weighing stations ensure the safety and durability of road infrastructures. In cold climates, weighing stations are heated to melt accumulated snow and maintain an adequate operating temperature, resulting in significant energy consumption. The objective of this work is to understand the heat transfer and airflow within weighing stations and identify potential improvements. A CFD model was developed and validated, based on measurements in a weighing station in Quebec City, Canada. Then, three performance metrics were defined to assess thermal uniformity inside the pit, the heat flux available for snow melting, and the amount of heat losses. A parametric study was performed by varying the heater configuration and capacity, as well as the airtightness of the pit, to identify the most influential variables. Results showed that the heat losses due to airflow through the different gaps in the station were dominant, representing around 54% of the heat input in the current situation. Adopting a new configuration (more heaters of smaller capacity) and improving airtightness significantly improved thermal performance under simulated conditions. The methods and results from this paper are useful to engineers who design, maintain, operate and renovate weighting stations and other similar heat transfer systems.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"15 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335507","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
Mass transpiration impact on effectiveness of heat transport of ternary hybrid nanofluid with velocity slip 质量蒸腾对速度滑移三元杂化纳米流体传热效率的影响
IF 6.8 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-19 DOI: 10.1016/j.csite.2025.106530
S. Bilal, Muhammad Yasir
{"title":"Mass transpiration impact on effectiveness of heat transport of ternary hybrid nanofluid with velocity slip","authors":"S. Bilal, Muhammad Yasir","doi":"10.1016/j.csite.2025.106530","DOIUrl":"https://doi.org/10.1016/j.csite.2025.106530","url":null,"abstract":"Admirable utilizations about the dynamical movement of rheological materials over exponentially shrinking configurations in industrial and technological fields have mesmerized investigators. Some potential applications are in polymer processing, fiber production, power generation, refrigeration, aircraft design, and many more. Furthermore, to raise the efficiency and to optimize the performance of the aforementioned mechanisms insertion of the composition of distinctively natured ternary nanoparticles comprising of Cu, TiO<ce:inf loc=\"post\">2</ce:inf> and Ag are induced. Water is considered as base liquid and its flow due to stretchable/shrinkable surface is entertained. The effectiveness of permeable medium by accounting modified Darcy law to envision inertial aspects is included. Thermal energy transmission in the emergence of radiative flux and variant heat source through non-linear approximating function is also manifested. The velocity boundary constraint with suction is applied at the boundary of the surface to examine the change in fluid motion. Translation of governing equations in the form of ordinary differential setup after execution of a similar approach is applied. BVP4C solver is capitalized to resolve the problem and run simulation relevant to shrinking/stretching case for upper and lower branches of the solution. Associated quantities concerned with momentum and heat flux are enumerated for a vast range of parameters. It is inferred from the comprehensive and in-depth analysis of attained outcomes that convective heat transfer determined through Nusselt number elevates versus suction and radiation parameters. Furthermore, the implication of externally applied magnetic field and suction causes the opposite i.e. increasing and decreasing impact on velocity distribution respectively for first and second-branch solutions. Radiation and variable heat sources exclusively raise the temperature distribution in all situations.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"29 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335513","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
Heating performance of an air source heat pump with a portable thermoelectric subcooler 带便携式热电过冷器的空气源热泵的加热性能
IF 6.4 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-19 DOI: 10.1016/j.csite.2025.106542
Yifeng Hu , Bo Shen , Sreenidhi Krishnamoorthy , Don Shirey
{"title":"Heating performance of an air source heat pump with a portable thermoelectric subcooler","authors":"Yifeng Hu ,&nbsp;Bo Shen ,&nbsp;Sreenidhi Krishnamoorthy ,&nbsp;Don Shirey","doi":"10.1016/j.csite.2025.106542","DOIUrl":"10.1016/j.csite.2025.106542","url":null,"abstract":"<div><div>This study investigates the heating performance of an integrated air-source heat pump (ASHP) with a thermoelectric subcooler (TES) module, revealing significant performance enhancements, particularly in colder temperatures. Results show that adding the portable TES boosts the ASHP's heating capacity, making it feasible for residential applications. The coefficient of performance (COP) for the TE system, which is influenced by condensing temperatures and ambient conditions, ranges from 1.51 to 2.07. If condensing temperatures are consistently maintained above 35 °C, a TE COP of approximately 2.07 is achievable, supporting system downsizing and reducing supplemental heating. When coupled with an oversized indoor coil, the TES-ASHP system delivers comparable heating to a baseline unit while achieving a 10 % higher COP. Capacity increases by 8.7 %–24 % with TES in colder conditions, though COP declines by 9 %–18 %, diminishing as temperatures drop. Compared to systems with supplemental heating, this setup achieves a COP 10 %–17 % higher. Future work will involve extended field testing in various climates, exploration of advanced materials for thermal efficiency, and assessment of alternative refrigerants to improve performance and sustainability. This integrated ASHP-TES system holds promise for increased efficiency and reduced environmental impact in cold climates.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"73 ","pages":"Article 106542"},"PeriodicalIF":6.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335508","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 study of the dynamic response of two concentric spheres in the context of thermoelastic diffusion with internal heat source 内热源热弹性扩散条件下两个同心球的动力学响应研究
IF 6.4 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-19 DOI: 10.1016/j.csite.2025.106540
Mohamed F. Abbas, Mohamed F. Zaky, Baraa A. Ahmed, Samar A. Mahrous
{"title":"A study of the dynamic response of two concentric spheres in the context of thermoelastic diffusion with internal heat source","authors":"Mohamed F. Abbas,&nbsp;Mohamed F. Zaky,&nbsp;Baraa A. Ahmed,&nbsp;Samar A. Mahrous","doi":"10.1016/j.csite.2025.106540","DOIUrl":"10.1016/j.csite.2025.106540","url":null,"abstract":"<div><div>This work examines the dynamic response of a heat source (inner sphere of radius a) embedded within a concentric spherical body (outer radius b), governed by the one-relaxation-time generalized thermoelastic diffusion theory. The outer sphere is subjected to a thermal load while remaining stress-free. A Laplace transform approach is used to solve the governing equations. The subsequent inverse transform yields the spatial distributions of temperature, displacement, radial stress, concentration, and chemical potential. Numerical results reveal a weak dependence of temperature but strong dependence of displacement and stress on the duration of thermal loading. The study underscores the importance of generalized thermoelastic diffusion theory in accurately modeling complex engineering scenarios.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"73 ","pages":"Article 106540"},"PeriodicalIF":6.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335511","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 structural parameters on thermal conductivity of ultra-high molecular weight polyethylene fabric 结构参数对超高分子量聚乙烯织物导热性能的影响
IF 6.4 2区 工程技术
Case Studies in Thermal Engineering Pub Date : 2025-06-19 DOI: 10.1016/j.csite.2025.106536
Wenxiao Chen, Yue Shen, Xuefeng Yan, Yan Ma
{"title":"Effect of structural parameters on thermal conductivity of ultra-high molecular weight polyethylene fabric","authors":"Wenxiao Chen,&nbsp;Yue Shen,&nbsp;Xuefeng Yan,&nbsp;Yan Ma","doi":"10.1016/j.csite.2025.106536","DOIUrl":"10.1016/j.csite.2025.106536","url":null,"abstract":"<div><div>To investigate the thermal conductivity of ultra-high molecular weight polyethylene fabric, <strong>11 fabric samples were prepared using a semi-automatic</strong> weaving <strong>machine.</strong> Surface temperature measurements <strong>were conducted</strong> using infrared thermography <strong>to evaluate</strong> the effects of linear density, fabric density, and structural parameters on thermal conductivity. It is noteworthy that, upon heating, the temperature of the ultra-high molecular weight polyethylene fabric exhibits a tendency to stabilize approximately 50 s into the heating process, characterized by a remarkably narrow temperature fluctuation range, typically not exceeding 0.5 °C. Moreover, fabrics characterized by a higher weft density and coarser weft yarns demonstrate a proclivity toward elevated temperatures along the weft direction. Conversely, fabrics with an increased warp density demonstrate elevated temperatures in the warp direction. In parallel, fabrics woven with finer yarns and greater fabric density manifest elevated vertical temperatures and a heightened susceptibility to heat penetration. In contrast, fabrics fashioned with coarse and dense yarns boast a substantial heat transfer surface area, resulting in a broader heat distribution pattern. Importantly, the satin weave emerges as a particularly noteworthy weave structure, demonstrating superior thermal conductivity attributes across fabrics of varying weave types.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"73 ","pages":"Article 106536"},"PeriodicalIF":6.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329810","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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