Thermal Science and Engineering Progress最新文献

Lithium-ion battery combustion with different state of charge and combustion prevention based on flame arrester

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-04-01 DOI: 10.1016/j.tsep.2025.103550

Jialong Liu , Jiyuan Zhou , Maodong Li , Wei Shao , Xingyan Cao , Jianxu Ding

{"title":"Lithium-ion battery combustion with different state of charge and combustion prevention based on flame arrester","authors":"Jialong Liu , Jiyuan Zhou , Maodong Li , Wei Shao , Xingyan Cao , Jianxu Ding","doi":"10.1016/j.tsep.2025.103550","DOIUrl":"10.1016/j.tsep.2025.103550","url":null,"abstract":"<div><div>Lithium-ion battery is an excellent energy storage device and used in many fields. However, accident of battery caused by combustion is an urgent issue to be solved. A new method to prevent battery combustion is studied in this work. The study about the combustion of batteries with different stage of charge (SOC) indicate that the combustion is more violent for battery with higher SOC, and more material powders are ejected out of the battery. The high-temperature powder is the ignition source of battery combustion. Flame arrester can be used to prevent battery combustion. The combustion can be prevented if the powders are blocked. It is found that the flame retardant effect is successful for battery with SOC equal to and lower than 80 %, when the layer (<em>n</em>) = 10, mesh number (<em>m)</em> = 60 and <em>n</em> = 5, <em>m</em> = 80, For battery with 100 % SOC, the flame retardant effect is successful when <em>n</em> = 10, <em>m</em> = 60. With the increasing mesh number and layer for metal wire mesh, the flame retardant effect is better. However, the metal wire mesh is easier to be ejected out of the flame arrester as they can be fully blocked by the powders.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103550"},"PeriodicalIF":5.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Exergo-Econo-Environmental analysis and optimization of an industrial scale linear alkylbenzene production plant

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-27 DOI: 10.1016/j.tsep.2025.103548

Seyed Amirhosein Tabatabei , Bahram Zeinolabedini , Masoud Beheshti , Abolghasem Kazemi

{"title":"Exergo-Econo-Environmental analysis and optimization of an industrial scale linear alkylbenzene production plant","authors":"Seyed Amirhosein Tabatabei , Bahram Zeinolabedini , Masoud Beheshti , Abolghasem Kazemi","doi":"10.1016/j.tsep.2025.103548","DOIUrl":"10.1016/j.tsep.2025.103548","url":null,"abstract":"<div><div>In this study, an industrial scale linear alkylbenzene production plant was simulated and validated against the operational data. Subsequently, exergy analysis was carried out to assess the individual equipment irreversibility. The results showed that the distillation towers accounted for the highest exergy loss within the process. This can be attributed to the highest rates of hot and cold utilities consumption within the columns, resulting in significant exergy loss. The pathfinder optimization algorithm based on the objective functions minimizing exergy loss and energy consumption in the process was used for finding the optimal operational parameters of the process. As a result, a remarkable 18% and 24% economic savings in terms of the total annualized costs of the process were obtained, respectively. Also, an environmental evaluation was carried out on individual equipment and the whole process and it was found that the hot utility requirements of the process are responsible for more than 90% of the environmental impacts such as acidification potential, global warming potential and abiotic depletion potential. Through the optimizations, a 19% reduction in global warming impact of the process was achieved.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103548"},"PeriodicalIF":5.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Numerical study on film cooling characteristics of two-dimensional convergent divergent nozzle based on the source term method

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-27 DOI: 10.1016/j.tsep.2025.103542

Lan Bo , Qiang Wang , Haiyang Hu , Zhiwei Hua

{"title":"Numerical study on film cooling characteristics of two-dimensional convergent divergent nozzle based on the source term method","authors":"Lan Bo , Qiang Wang , Haiyang Hu , Zhiwei Hua","doi":"10.1016/j.tsep.2025.103542","DOIUrl":"10.1016/j.tsep.2025.103542","url":null,"abstract":"<div><div>In turbofan engine exhaust systems, film cooling is used to prevent excessive temperatures and improve infrared stealth. However, CFD simulations of film cooling are often impractical due to high computational costs, limiting rapid and accurate prediction of infrared, flow, and heat transfer characteristics during cooling design. This study introduces a novel source term method to efficiently simulate the flow and heat transfer behavior of discrete film cooling holes. The method applies mass, momentum, energy, and species fluxes as source terms at the cooling hole inlets and outlets, overcoming the high computational demands of traditional CFD. By incorporating a multidimensional database of discharge coefficients and coolant penetration depths under various flow conditions, the approach significantly boosts computational efficiency while maintaining accuracy. Validation shows that the method predicts cooling efficiency with errors under 6 % compared to CFD for mainstream Mach numbers from 0.3 to 1.2. It also considers factors such as boundary layer suction, solid heat conduction, and coolant penetration, enhancing the fidelity of both discharge coefficient and heat transfer predictions. Applied to different nozzle components, the method demonstrates that film cooling can reduce infrared radiation intensity by up to 42.13 % in the 3–5 μm band and 19.59 % in the 8–14 μm band, with the divergent section achieving the most effective cooling by reducing wall temperatures by up to 115 K.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103542"},"PeriodicalIF":5.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thermal control performance and energy efficiency improvement of ionic wind pumps based on multi-parameter collaborative optimization

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-27 DOI: 10.1016/j.tsep.2025.103534

Yu-qing Ji, Jing Wang, Wen-jie Shen, An Li, Zhi-peng Tan, Ji-chen Ma

{"title":"Thermal control performance and energy efficiency improvement of ionic wind pumps based on multi-parameter collaborative optimization","authors":"Yu-qing Ji, Jing Wang, Wen-jie Shen, An Li, Zhi-peng Tan, Ji-chen Ma","doi":"10.1016/j.tsep.2025.103534","DOIUrl":"10.1016/j.tsep.2025.103534","url":null,"abstract":"<div><div>In this work, an ionic wind pump with saw-toothed emitters is developed for high-power LED chip thermal control. The multi-objective optimization approach is used to determine the optimal structure. The spatial ionic wind distribution may be efficiently regulated by adjusting the heat sink’s installation location, which also changes the flow from vortex to wall flow and increases the system’s heat exchange capacity. The system’s maximum mean heat transfer coefficient is 74.49 W/(K·m<sup>2</sup>) when the optimized pump is used for thermal management. The chip’s case temperature drop reaches its maximum value of 51.41 K when the chip power is greater than 9 W. After multi-objective optimization, the pump’s power consumption is reduced by 2.6 % and the chip’s case temperature is reduced by 15.07 %. The optimized pump has a better heat transfer coefficient to the energy consumption ratio, up to 196.03 K<sup>−1</sup>·m<sup>−2</sup>, in comparison to the other two reported ionic wind pumps. This successfully settles the dispute between cooling capacity and energy consumption.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103534"},"PeriodicalIF":5.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 entransy dissipation thermal resistance and heat transfer efficiency of electrical heating snow-melting pavement

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-27 DOI: 10.1016/j.tsep.2025.103551

Kai Xu , Zhi Chen , Henglin Xiao , Lifei Zheng , Jingmei Wang

{"title":"Analysis of entransy dissipation thermal resistance and heat transfer efficiency of electrical heating snow-melting pavement","authors":"Kai Xu , Zhi Chen , Henglin Xiao , Lifei Zheng , Jingmei Wang","doi":"10.1016/j.tsep.2025.103551","DOIUrl":"10.1016/j.tsep.2025.103551","url":null,"abstract":"<div><div>The electric heating pavement can accurately control the heating area and temperature to melt snow or ice on the pavement. However, both climate change and the pavement layer’s thermal properties can impact the pavement’s internal and surface temperatures. Improving heat transfer within the electric heating system so that generated heat can effectively be transferred to the pavement surface, as well as measuring its heat transfer efficiency remains a challenge. This study aims to apply entransy dissipation theory to establish an energy balance equation for snow-melting pavements. Twelve types of pavement structure models are designed using the finite element method. The entransy dissipation thermal resistance (<span><math><msub><mi>R</mi><mi>t</mi></msub></math></span>) and heat transfer rate (<span><math><msub><mi>Q</mi><mi>φ</mi></msub></math></span>) of different electrically heated pavement structures were analyzed. Results indicate that thermal insulation cable models exhibit higher heat transfer performance and snow melting efficiency compared to the without insulation, with the temperature being transferred to road surfaces within the 2100 s in this arrangement scheme. Additionally, embedding cables causes changes in temperature and temperature gradient within structure layers. The entransy dissipation thermal resistance of upper layers ranges from 0.1 °C/W to 0.6 °C/W, while lower layers range from 0.03 °C/W to 0.45 °C/W. The temperature rise of the insulation layer embedded in the asphalt concrete(AC) layer is 1.709 times higher than that of the heat transfer rate without insulation, and the snow melting is increased by 2.139 times.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103551"},"PeriodicalIF":5.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Reducing costs in solar heat: A comparative study of rotatory Fresnel and parabolic trough systems

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-27 DOI: 10.1016/j.tsep.2025.103526

Magdalena Barnetche, Rubén Abbas, Luis F. González-Portillo

引用次数: 0

Investigating the effects of Lorentz forces on electrohydrodynamic flow generated by corona discharge in a multi needle-to-cylinder configuration

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-27 DOI: 10.1016/j.tsep.2025.103543

Murat Toptaş , Mehmet Yılmaz

{"title":"Investigating the effects of Lorentz forces on electrohydrodynamic flow generated by corona discharge in a multi needle-to-cylinder configuration","authors":"Murat Toptaş , Mehmet Yılmaz","doi":"10.1016/j.tsep.2025.103543","DOIUrl":"10.1016/j.tsep.2025.103543","url":null,"abstract":"<div><div>This study investigates the enhancement of electrohydrodynamic (EHD) flow velocity in a multi needle-to-cylinder configuration using an electromagnetically assisted system under atmospheric conditions. An experimental setup was developed to measure airflow velocity, incorporating a corona discharge emitter, solenoid, and precise instrumentation. The impact of emitter voltage, solenoid voltage (magnetic field strength), and needle-to-cylinder distance on airflow velocity was evaluated using factorial analysis. The results highlight the role of the solenoid-generated magnetic field in enhancing EHD flow velocity via Lorentz forces. The maximum air velocity of 2.10 m/s was achieved with a maximum emitter voltage of 20.63 kV, emitter distance of 18 mm, and solenoid voltage of 30 V. Applying Lorentz force increased air speed by 4.9–56.7 % for different emitter voltages and distances compared to zero solenoid voltage. With a solenoid voltage of 15 V, the increase ranged from 4.9 % to 35.5 %, and with 30 V, it ranged from 8 % to 56.7 %. The average velocity increase was 18.63 % for 15 V and 39.94 % for 30 V. At a fixed emitter voltage and distance, increasing the solenoid voltage enhanced velocity, demonstrating the influence of Lorentz forces on ion acceleration and momentum transfer to air molecules. Pareto analysis confirmed that both solenoid and emitter voltages significantly contribute to flow enhancement. These results highlight the importance of Lorentz forces in enhancing EHD flow and suggest that optimizing solenoid voltage could improve the performance of EHD-based technologies in applications like heat exchangers, cooling systems, and microfluidic devices.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103543"},"PeriodicalIF":5.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thermal behavior of transient EMHD flow in a rotating microscale conduit with surface undulation

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-26 DOI: 10.1016/j.tsep.2025.103521

Amalendu Rana

{"title":"Thermal behavior of transient EMHD flow in a rotating microscale conduit with surface undulation","authors":"Amalendu Rana","doi":"10.1016/j.tsep.2025.103521","DOIUrl":"10.1016/j.tsep.2025.103521","url":null,"abstract":"<div><div>Microchannels with undulating surfaces are instrumental in boosting mixing efficiency, augmenting thermal performance, and enhancing chemical reactions within electrically actuated microfluidic systems. The rotation of microchannel with surface undulation further amplifies this enhancement. Owing to this motivation, the combined effects of the magnetohydrodynamics and surface undulation on transient rotating electrothermal flow in microchannels are investigated. A mathematical model is developed, followed by the derivation of analytical solutions using the separation of variables method combined with cosine Fourier series expansion. Our results indicated that the interplay between the undulation of the surface and rotation significantly influences the boundary layer formation for shaping the flow dynamics. Over time, viscosity and force redistribution lead to a more stable flow with diminished disturbances near the central axis of the channel. Rotation and other forces directly influence the heat transfer characteristics, leading to flow oscillations. These oscillations boost mixing and enhance efficient thermal energy transport.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103521"},"PeriodicalIF":5.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Performance investigation of geothermal driven organic Rankine cycles with zeotropic mixtures and partial evaporation

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-26 DOI: 10.1016/j.tsep.2025.103539

Dimitra Gonidaki, Evangelos Bellos

{"title":"Performance investigation of geothermal driven organic Rankine cycles with zeotropic mixtures and partial evaporation","authors":"Dimitra Gonidaki, Evangelos Bellos","doi":"10.1016/j.tsep.2025.103539","DOIUrl":"10.1016/j.tsep.2025.103539","url":null,"abstract":"<div><div>Geothermal heat is a promising option for renewable energy generation, and the Organic Rankine Cycle (ORC) effectively converts this heat into electricity. Current research focuses on replacing high-GWP (Global Warming Potential) working fluids with more environmentally friendly alternatives and incorporating strategies to enhance efficiency. Building on these goals, this study examines low-GWP hydrocarbon working fluids and their binary zeotropic mixtures under partial evaporation. Using a validated MATLAB code integrated with the CoolProp tool, six working fluids—hexane, pentane, isopentane, butane, isobutene, and propane—were simulated, and their vapor quality was optimized for different source temperatures. Subsequently, binary zeotropic mixtures composed of these fluids were optimized for mixture composition and vapor quality, and the resulting systems were compared. The final results identify the optimal pure fluid and mixture option for each examined geothermal source temperature, serving as a performance map for geothermal ORC applications. The results showed that incorporating zeotropic mixtures as working fluids enhances system efficiency across all examined source temperatures compared to optimized pure fluids, with an increase reaching 40 % at low source temperatures. The economic evaluation indicated a decrease in the payback period and an increase in NPV for systems using zeotropic mixtures compared to pure fluids; the respective values ranged from 2.2 to 10 years and 47.1 k€ to 3,292.4 k€. Overall, geothermal ORC with zeotropic mixtures was found to outperform pure fluids in both thermodynamic and economic performance.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103539"},"PeriodicalIF":5.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thermal management of refrigerant direct cooling and mass flow control strategies for multiple discrete heat sources system

IF 5.1 3区工程技术

Thermal Science and Engineering Progress Pub Date : 2025-03-26 DOI: 10.1016/j.tsep.2025.103546

Meiyan Xiong, Zhenwei Liu, Kun Liu, Yaodong Ding, Ping Li

{"title":"Thermal management of refrigerant direct cooling and mass flow control strategies for multiple discrete heat sources system","authors":"Meiyan Xiong, Zhenwei Liu, Kun Liu, Yaodong Ding, Ping Li","doi":"10.1016/j.tsep.2025.103546","DOIUrl":"10.1016/j.tsep.2025.103546","url":null,"abstract":"<div><div>Challenges for controlling heat dissipation and temperature uniformity are presented by variations of heat source conditions in the power battery thermal management system. The efficiency of cooling systems can be enhanced by investigating the impact of heat source side variations on direct cooling performance for configurations with multi-point discrete heat sources. This study examines the effects of baseline heat sources arrangement, hotspot heat sources location and flow direction configuration on the direct cooling effect. The findings reveal that the influence of heat source arrangement on the direct cooling effect is similar under the same total heat generation, while the overall suitable operating mass flow rate interval range is lengthened with the increment of total heat generation. Furthermore, as the hotspot heat sources from outlet to inlet, the suitable operating mass flow rate interval of system changes from 0.164–0.207 g·s<sup>−1</sup> to a broader range of 0.119–0.334 g·s<sup>−1</sup>, with a maximum reduced working heat source temperature difference of 2.87 K, and the temperature uniformity of heat sources is improved. Then, the suitable operating mass flow rate interval can be extended to 3.63 times by optimizing the flow direction. The investigation on direct cooling obtained the optimal mass flow rate interval and the temperature uniformity for different heat source arrangements and hotspot heat source positions, which can be optimized by counter-flow distribution.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103546"},"PeriodicalIF":5.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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