International Journal of Heat and Mass Transfer最新文献_第9页

Flow and heat transfer characteristics of porous plate in combustion chamber

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-25 DOI: 10.1016/j.ijheatmasstransfer.2025.126881

Cheng Xiong , Jianan Ge , Xin Wang , Bo Xu , Zhenqian Chen

{"title":"Flow and heat transfer characteristics of porous plate in combustion chamber","authors":"Cheng Xiong , Jianan Ge , Xin Wang , Bo Xu , Zhenqian Chen","doi":"10.1016/j.ijheatmasstransfer.2025.126881","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126881","url":null,"abstract":"<div><div>Transpiration cooling is an important active thermal protection technology in advanced spacecraft. This work aims to study the flow and heat transfer mechanisms to accurately predict the transpiration cooling performance. Consequently, this work employs a real gas model coupled with a combustion model to establish a model for transpiration cooling of porous plates in the combustion chamber. The flow and heat transfer mechanism of porous plate transpiration cooling is thoroughly discussed, and the impact of the Joule-Thomson effect on the temperature of porous transpiration is considered. The evolution pattern of transpiration cooling characteristics under trans-critical conditions is studied. The results demonstrated that heating and cooling coexist in the porous plate. The lowest temperature is 8 K less than the inlet temperature of the coolant, and along the axial direction, the temperature declines first and then rises. When the porosity is 0.12 and the pore diameter is 60 μm, the temperature non-uniformity of the porous plate reaches its peak. The cooling effectiveness of CO<sub>2</sub> coolant is 20% higher than the other four coolants, while the blowing ratio of CO<sub>2</sub> coolant is 36.62% higher than the minimum blowing ratio of CO. The research outcomes can help guide the choice of porous plate parameters, coolant types, and coolant inlet temperature, thereby improving the cooling performance and thermal stability of transpiration plates.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126881"},"PeriodicalIF":5.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487422","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 performance of oblique double layer plate microchannel heat exchanger by computational fluid dynamics: Design and performance optimization

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-24 DOI: 10.1016/j.ijheatmasstransfer.2025.126865

Chaiyanan Kamsuwan , Xiaolin Wang , Lee Poh Seng , Cheng Kai Xian , Ratchanon Piemjaiswang , Pornpote Piumsomboon , Kanit Manatura , Yotsakorn Pratumwal , Somboon Otarawanna , Benjapon Chalermsinsuwan

{"title":"Enhancing performance of oblique double layer plate microchannel heat exchanger by computational fluid dynamics: Design and performance optimization","authors":"Chaiyanan Kamsuwan , Xiaolin Wang , Lee Poh Seng , Cheng Kai Xian , Ratchanon Piemjaiswang , Pornpote Piumsomboon , Kanit Manatura , Yotsakorn Pratumwal , Somboon Otarawanna , Benjapon Chalermsinsuwan","doi":"10.1016/j.ijheatmasstransfer.2025.126865","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126865","url":null,"abstract":"<div><div>This study aims to improve the performance of oblique microchannel heat exchangers by modifying conventional straight microchannel configurations. A simulation model using computational fluid dynamics (CFD) is developed to evaluate the efficiency of the heat exchanger by analyzing design parameters such as microchannel width, primary to secondary channel width ratio, and number of oblique cuts along the microchannel. Coefficient of performance (<em>COP</em>) a forthright metric for assessing the interaction between operating parameters and achieving optimal performance is proposed. Utilizing a width of 0.48 mm, path ratio of 2.06, and oblique ratio of 1.61, significant improvements in heat transfer and performance efficiency are achieved. The optimized design leads to a substantial reduction in fabrication material, potentially using more than half less material than before. The optimized design of the oblique microchannel heat exchanger strikes a balance between hot flue gas temperature and coolant Reynolds Number (<em>Re</em>) in a waste heat recovery system which considering waste flue gas from the most common boiling process in industry. The results indicate a promising improvement in hydrothermal performance of 8.48% compared to the baseline case of straight microchannel design, resulting in cost savings and enhanced economic sustainability. These findings establish the oblique microchannel heat exchanger as a viable solution for waste heat recovery systems, showcasing its potential for efficient energy reutilization.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126865"},"PeriodicalIF":5.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474004","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

Research on the modulation of GaN/AlN superlattice thermal transport by phonon wave effects

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-24 DOI: 10.1016/j.ijheatmasstransfer.2025.126760

Jiao Chen, Kexin Wang, Kunpeng Yuan, Zhaoliang Wang

{"title":"Research on the modulation of GaN/AlN superlattice thermal transport by phonon wave effects","authors":"Jiao Chen, Kexin Wang, Kunpeng Yuan, Zhaoliang Wang","doi":"10.1016/j.ijheatmasstransfer.2025.126760","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126760","url":null,"abstract":"<div><div>The high integration and miniaturization of semiconductor devices have led to characteristic lengths comparable to the wavelength of phonons. Coherent phonons play a significant role in the thermal management of devices. The controllability of the secondary periodicity in superlattice structures offers a pathway for manipulating phonon waves. In this work, the phonon wave heat conduction in GaN/AlN superlattice is investigated using the transfer matrix method. By constructing the phonon dispersion and transmission of the superlattice, the effects of phonon tunneling, non-reciprocity, and resonance on thermal transport are analyzed based on the consideration of the acoustic wave propagation. It is found that the secondary periodicity of the superlattice introduces band gaps at the center and edges of the Brillouin zone in the dispersion, leading to a rapid decrease in phonon transmissivity and the formation of stop bands. The phonon transport in the superlattice is promoted with the increase of interface density due to the enhancement of phonon tunneling effect and phonon group velocity. Furthermore, the phonon non-reciprocal and resonant effects are also found to effectively regulate the thermal transport in the superlattice. The amplitude of elastic waves in superlattice exhibits non-reciprocal effects, allowing for the lossless transmission of topologically protected phonons. Besides, the phonon resonance enables the transmissivity of phonon within the stop band approaching 1 for multi-superlattice systems. This work provides valuable insights into the changes in thermal conductivity of superlattice structures and offers theoretical guidance for the design of semiconductor devices and the manipulation of phonons.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126760"},"PeriodicalIF":5.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474005","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

Numerical study of density-driven reactive flows in a fractured porous medium for CO2 storage

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-24 DOI: 10.1016/j.ijheatmasstransfer.2025.126847

Peiyao Liu , Ruiping Niu , Chunhua Zhang , Zhaoli Guo

{"title":"Numerical study of density-driven reactive flows in a fractured porous medium for CO2 storage","authors":"Peiyao Liu , Ruiping Niu , Chunhua Zhang , Zhaoli Guo","doi":"10.1016/j.ijheatmasstransfer.2025.126847","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126847","url":null,"abstract":"<div><div>Fractures play a crucial but uncertain role in trapping mechanisms for CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> sequestration, particularly when coupled with mineral-fluid reactions. This study numerically investigates the impact of fractures at different Damköhler numbers (Da) for density-driven reactive flows in an idealized fractured porous medium model, using a discrete unified gas-kinetic scheme that accounts for porosity changes. The analysis includes single fracture scenarios (horizontal and vertical) as well as multiple intersecting fracture scenarios combining both fracture types. The study reveals that fractures exhibit similar effects to those observed in non-reactive scenarios, i.e., horizontal fractures enhance lateral mixing, leading to more uniform dissolution of CO<sub>2</sub> across the fracture, whereas vertical fractures concentrate CO<sub>2</sub> near the fracture and enabling deeper penetration into the porous medium. Numerical results further show that a high Da significantly delays the onset of convection and prolongs the duration of the “constant flux” regime. Moreover, vertical fractures enhance dissolution efficiency by increasing the constant dissolution flux by up to 10% at high Da values, thereby further facilitating CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> penetration into the matrix. Porosity changes due to the mineral-fluid reaction confined to the upper region, with localized increases observed directly over the vertical fracture for both single and multiple fracture scenarios. Additionally, while mineral-fluid reactions have a minor effect on porosity change, they can enable up to twice the amount of CO<sub>2</sub> storage compared to non-reactive scenarios.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126847"},"PeriodicalIF":5.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474003","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

Interfacial thermal resistance between nano-confined water and functionalized silica: Molecular dynamics simulations

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-24 DOI: 10.1016/j.ijheatmasstransfer.2025.126838

William Gonçalves, Konstantinos Termentzidis

{"title":"Interfacial thermal resistance between nano-confined water and functionalized silica: Molecular dynamics simulations","authors":"William Gonçalves, Konstantinos Termentzidis","doi":"10.1016/j.ijheatmasstransfer.2025.126838","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126838","url":null,"abstract":"<div><div>Nanoscale engineering enables precise tuning of materials properties through surface functionalization, impacting energy conversion and heat dissipation in nanodevices. We used molecular dynamics simulations to observe the impact of grafting hydrophobic trimethylsilane molecules on the interfacial thermal resistance between silica and water at the nanoscale. As the level of hydrophobicity increases, both the cosine of the contact angle and the water density peak near the interface exhibit linear trend. The hydrogen bond network of water, initially completed by the silanol (Si-OH) groups of the silica surface, is disrupted by the hydrophobic molecules. This results in an exponential variation of the interfacial thermal resistance. We finally provide a law that relates the cosine of the contact angle and the interfacial thermal resistance between functionalized silica and water. Our results are of great interest for experimental researchers using Scanning Thermal Microscopy under humid environments and the multiscale heat transfer modeling in functionalized nanoporous materials.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126838"},"PeriodicalIF":5.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143473837","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

Coupled analytical model for temperature-phase transition and residual stress in hot-rolled coil cooling process

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-24 DOI: 10.1016/j.ijheatmasstransfer.2025.126864

Hao Wu , Jie Sun , Wen Peng , Chongxiang Yue , Dianhua Zhang

{"title":"Coupled analytical model for temperature-phase transition and residual stress in hot-rolled coil cooling process","authors":"Hao Wu , Jie Sun , Wen Peng , Chongxiang Yue , Dianhua Zhang","doi":"10.1016/j.ijheatmasstransfer.2025.126864","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126864","url":null,"abstract":"<div><div>The presence of residual stress in hot-rolled strips not only causes flatness defects but also induces subsequent cutting deformation. The residual stress formed during the cooling stage involves the coupling of temperature, phase transition and mechanics, lacks analytical models to reveal the complex mechanisms comprehensively. This paper delves deeply into the mechanism underlying the formation of residual stress during the cooling process of hot-rolled coils by means of analytical modeling. Firstly, discretizing the coil into numerous elements and micro-units along the circumferential and axial directions, converting the multi-physics coupling problem from cylindrical to Cartesian coordinates. In the Hamiltonian system, the exact analytical solution of the three-dimensional temperature field of the coil is derived by using the basic equation. Meanwhile, an alternating coupling algorithm is developed to achieve nonlinear calculation of thermal-metallurgical coupling processes. Furthermore, the relationship between residual stress and eigenstrain caused by thermal metallurgical behavior during cooling is elucidated. Next, the analytical models for axial and radial residual stresses in coil are derived based on the principle of overall deformation coordination. To verify the precision of the analytical model, a multi-physics field coupled finite element model based on measured data validation is established. Finally, the analytical solutions of temperature, microstructure and residual stress distribution are almost consistent with the finite element solutions. The calculation results indicate that axial residual stresses distributed radially are mainly formed inside the coil, with magnitudes concentrated in the range of −100∼60 MPa.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126864"},"PeriodicalIF":5.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143473836","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

Experimental characterization of heat transfer coefficients in a moving-bed shell-and-plate heat exchanger with non-contact temperature measurements

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-23 DOI: 10.1016/j.ijheatmasstransfer.2025.126819

J. Michael Mayer , Noah Walters , Kevin J. Albrecht , Dimitri A. Madden , Rohini Bala Chandran

{"title":"Experimental characterization of heat transfer coefficients in a moving-bed shell-and-plate heat exchanger with non-contact temperature measurements","authors":"J. Michael Mayer , Noah Walters , Kevin J. Albrecht , Dimitri A. Madden , Rohini Bala Chandran","doi":"10.1016/j.ijheatmasstransfer.2025.126819","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126819","url":null,"abstract":"<div><div>Dense particle flows have important applications in moving-bed heat exchangers. Consequently, there is a need to experimentally quantify heat transfer coefficients in these flows. In this work, non-contact techniques—thermal imaging and pyrometry—were used to measure particle temperatures and evaluate local particle-to-wall heat transfer coefficients in a 20 kW shell-and-plate particle-to-sCO<sub>2</sub> heat exchanger. The particle mass flow rate and particle inlet temperature of the heat exchanger were varied from 50 g/s to 175 g/s and 200 °C to 550 °C, respectively. For sintered bauxite particles (CARBOHSP 40/70) with a median diameter of 350 <span><math><mi>μ</mi></math></span>m, the measured particle-to-wall heat transfer coefficients ranged from <span><math><mo>∼</mo></math></span>110 to 170 W/m<sup>2</sup>K. Heat transfer coefficient increased with particle mass flow rate from 50 g/s to 100 g/s, but remained nearly constant when mass flow rate was increased further, up to 175 g/s. No clear trends were observed with particle temperatures up to 550 °C, likely due to heat exchanger plate warpage from thermal expansion. A companion plug flow model of a heat exchanger channel was developed to predict heat flux profiles and translate local particle temperature measurements to local heat transfer coefficients. Experimentally determined Nusselt numbers deviated by an average of 16% from predictions with a semi-empirical correlation, with the largest variations (up to 59%) observed for the highest mass flow rates and temperatures. Overall, this paper presents a novel application of non-contact temperature measurements for measuring particle-to-wall heat transfer coefficients in dense granular flows.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126819"},"PeriodicalIF":5.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471450","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

Influence of geological heterogeneities on thermal behaviour of Lascaux Cave for conservation purposes

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-23 DOI: 10.1016/j.ijheatmasstransfer.2025.126863

Habiba Lharti , Delphine Lacanette , Fabien Salmon , Joëlle Riss , Muriel Mauriac , Colette Sirieix

{"title":"Influence of geological heterogeneities on thermal behaviour of Lascaux Cave for conservation purposes","authors":"Habiba Lharti , Delphine Lacanette , Fabien Salmon , Joëlle Riss , Muriel Mauriac , Colette Sirieix","doi":"10.1016/j.ijheatmasstransfer.2025.126863","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126863","url":null,"abstract":"<div><div>The conservation of cultural heritage is becoming an increasingly significant social issue because of climate change. Lascaux Cave, a UNESCO World Heritage Site, is particularly susceptible to disruption, which could result in the alteration of its delicate microclimate and accelerate the deterioration of the decorated walls. To mitigate the impact of these changes, it is essential to gain a deeper understanding of the thermal behaviour within the cave and its surrounding environment. The objective of this study was to examine the thermal behaviour of the cave, with a particular focus on the interactions between external temperature fluctuations, geological heterogeneity, and the internal microclimate of the cave. To investigate this phenomenon, a thermal monitoring system comprising 21 sensors (ALMEMO PT-100) was strategically placed in different zones of the cave, and a thermal station was installed outside the cave. The findings of this study demonstrate a substantial correlation between external and internal temperatures, exhibiting notable phase shifts and relative amplitude changes at varying depths and locations within the cave. The combination of thermal data with the geological heterogeneity of the rock mass demonstrated that the distinct thermal properties of different geological formations exert a considerable influence on thermal wave propagation. Furthermore, we examined how natural convection is caused by temperature differences between the vault and the ground of the cave and between the upper and lower galeries. The findings of this study can be used to develop future thermoaeraulic simulations. Understanding these thermal dynamics is necessary for developing effective conservation strategies.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126863"},"PeriodicalIF":5.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The heat transfer characteristics at three forms of Oil-on-Water mist in a wide temperature range

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-23 DOI: 10.1016/j.ijheatmasstransfer.2025.126825

Furong Ma , Linhu Tang , Jihui Zhang , Yanjun Hu , Baodong Li , Yongji Song , Dongliang Wang

{"title":"The heat transfer characteristics at three forms of Oil-on-Water mist in a wide temperature range","authors":"Furong Ma , Linhu Tang , Jihui Zhang , Yanjun Hu , Baodong Li , Yongji Song , Dongliang Wang","doi":"10.1016/j.ijheatmasstransfer.2025.126825","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126825","url":null,"abstract":"<div><div>The spray cooling method has emerged in response to the problems of low cooling efficiency and waste of coolant in flooding cooling. This paper established a convectional heat transfer model of Oil-on-Water mist, and experimentally determined the hemispherical effective emissivity and convectional heat transfer coefficient of nickel based superalloy, carbide coated by TiAlN, and silicon nitride ceramics in different temperatures (-30 °C, 20 °C, 150 °C) at the Oil-on-Water mist condition. The cooling process of the sample starting from 1000 °C has been observed by the numerical simulation based on the convectional heat transfer coefficient. The experimental results showed that samples were reheated during the cooling process. The simulation results showed that the particle diameter of the high temperature Oil-on-Water mist is the smallest, ranging from 0.92 μm to 1.22 μm, followed by the normal temperature Oil-on-Water mist, and the low temperature Oil-on-Water mist is the largest. The distribution of sample surface temperature is the most uniform in the high temperature Oil-on-Water mist condition. The liquid film on the surface of the sample is distributed in a circular form, with the thinnest liquid film at the center and edges.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126825"},"PeriodicalIF":5.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471448","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

Thermal management of 3D lithium-ion pouch cell under fast discharging: a multi-scale multi-domain (MSMD) framework with phase change material, nanoparticle and metal foam 快速放电条件下三维锂离子袋式电池的热管理：包含相变材料、纳米粒子和金属泡沫的多尺度多域（MSMD）框架

IF 5 2区工程技术

International Journal of Heat and Mass Transfer Pub Date : 2025-02-23 DOI: 10.1016/j.ijheatmasstransfer.2025.126858

Rajesh Kumar, Anoop K. Gupta

{"title":"Thermal management of 3D lithium-ion pouch cell under fast discharging: a multi-scale multi-domain (MSMD) framework with phase change material, nanoparticle and metal foam","authors":"Rajesh Kumar, Anoop K. Gupta","doi":"10.1016/j.ijheatmasstransfer.2025.126858","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126858","url":null,"abstract":"<div><div>Lithium-ion batteries, a vital power source to electric vehicles, are highly sensitivity to temperature fluctuations. An effective thermal management is therefore essential to prevent overheating during charging and discharging, ensuring safety, reliability, longevity, and optimal performance. This study adopts a single 3D pouch lithium-ion cell cooled by a novel phase change material (PCM) configuration under various ambient conditions. The cooling performance was examined at discharge rates of 3C-7C for different convective heat transfer coefficients (<em>h</em> = 5-15 W/m²K) and PCM encapsulation thicknesses (1-3 mm) employing the Multi-Scale Multi-Dimensional (MSMD) model. At 7C discharge rate, using 1 mm PCM effectively mitigates temperature rise across various models. Notably, at 5C and ambient temperature of 300 K, employing n-octadecane (PCM1) of 1 mm, 2 mm, and 3 mm thicknesses result in substantial reductions in the maximum temperature by 12.3 K, 16.4 K, and 16.7 K, respectively, compared to PCM-absent systems. For fixed amount of PCM, PCM-fin models (Models 2 and 3) predict reduced temperature drops up to 2.5 K at 7C compared to Model 1. Additionally, the local thermal equilibrium model was employed for the composite PCM utilizing n-octadecane (PCM1) and n-eicosane (PCM2) with Cu metal foam featuring 90% porosity and 30 pores per inch (PPI), alongside nano-PCM cooling. Introducing Cu metal foam improves thermal uniformity within the cell, with maximum temperature reduction of 1.4 K for composite PCM2 compared to PCM2 alone. Furthermore, the conditions of external and internal short circuits are also investigated to comprehensively evaluate the battery safety and performance.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"242 ","pages":"Article 126858"},"PeriodicalIF":5.0,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471451","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