Frontiers in Heat and Mass Transfer最新文献

Heat and Humidity Transport Analysis Inside a Special Underground Building 特殊地下建筑内部热湿传输分析

Frontiers in Heat and Mass Transfer Pub Date : 2023-10-26 DOI: 10.32604/fhmt.2023.045134

Jian Ai

引用次数: 0

HEAT TRANSFER ANALYSIS OF MHD CASSON FLUID FLOW BETWEEN TWO POROUS PLATES WITH DIFFERENT PERMEABILITY 不同渗透率多孔板间MHD卡森流体的传热分析

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Frontiers in Heat and Mass Transfer Pub Date : 2023-04-26 DOI: 10.5098/hmt.20.30

N. P. Pai, V.S. Sampath Kumar, B. Devaki

引用次数: 0

COMPARISON OF TEMPERATURE, RADIATION RATE, HEAT LOSS, FURNACE AND THERMAL EFFICIENCIES OF DIFFERENT PLATES IN THE FBC COMBUSTION CHAMBER FBC燃烧室中不同板的温度、辐射率、热损失、炉膛和热效率的比较

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Frontiers in Heat and Mass Transfer Pub Date : 2023-04-19 DOI: 10.5098/hmt.20.29

Erdiwansyah Erdiwansyah, M. Mahidin, H. Husin, N. Nasaruddin, A. Gani, M. Faisal, M. Muhtadin, Mohammadi Zaki, R. Mamat

引用次数: 1

PERFORMANCE ANALYSIS OF AN ENERGY-EFFICIENT PCM-BASED ROOM COOLING SYSTEM 基于pcm的节能房间冷却系统的性能分析

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Frontiers in Heat and Mass Transfer Pub Date : 2023-04-19 DOI: 10.5098/hmt.20.28

A. Roy, Ummid I. Shaikh, Sonali Kale, Anirban Sur

引用次数: 2

MATHEMATICAL ANALYSIS OF CONVECTIVE HEAT EXCHANGER FROM RENEWABLE SUN’S RADIATION THROUGH NANO-FLUID IN DIRECT ABSORPTION SOLAR COLLECTORS WITH THE PROCREATION OF ENTROPY 可再生太阳辐射经纳米流体直接吸收式太阳能集热器对流换热的数学分析

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Frontiers in Heat and Mass Transfer Pub Date : 2023-04-18 DOI: 10.5098/hmt.20.27

Girma Tafesse, M. Daba, V. G. Naidu

引用次数: 0

EFFECT OF GAS FLOW RATE ON SEPARATION EFFICIENCY AT DIFFERENT SCALING SCALES OF CYCLONE SEPARATORS 不同垢度下气流流速对旋风分离器分离效率的影响

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Frontiers in Heat and Mass Transfer Pub Date : 2023-04-15 DOI: 10.5098/hmt.20.26

Zhuo Chen, Yangyang Tian, Qi Zhuang

引用次数: 0

HEAT AND MASS TRANSFER IN DRYING OF CARROT BY RADIO FREQUENCY ASSISTED HEAT PUMP DRYING 射频辅助热泵干燥胡萝卜干燥过程中的传热传质

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Frontiers in Heat and Mass Transfer Pub Date : 2023-04-12 DOI: 10.5098/hmt.20.25

P. Kien, L. A. Duc, Nguyen Thanh Tan, Doan Thanh Son, Nhanh Van Nguyen, Ngoc Xuan Nguyen

{"title":"HEAT AND MASS TRANSFER IN DRYING OF CARROT BY RADIO FREQUENCY ASSISTED HEAT PUMP DRYING","authors":"P. Kien, L. A. Duc, Nguyen Thanh Tan, Doan Thanh Son, Nhanh Van Nguyen, Ngoc Xuan Nguyen","doi":"10.5098/hmt.20.25","DOIUrl":"https://doi.org/10.5098/hmt.20.25","url":null,"abstract":"This study focused on the heat and mass transfer in radio (RF) assisted heat pump (HP) drying of carrots. The experimental drying of carrot by RF assisted HP drying method was conducted to evaluate the effect of RF power on drying efficiency including drying rate and heating rate. The input drying parameters were drying air temperature of 45 o C, drying air velocity of 2.5 m/s and RF power of 0, 0.5 and 1.5 kW, in which, RF power of 0 was corresponding to HP drying method. The experimental drying results showed that in RF assisted HP drying method, the drying rate and heating rate were improved as compared to HP drying. The drying time was 480, 375 and 335 minutes corresponding to RF power of 0, 0.5 and 1.5 kW. The temperature of drying material reached the drying air temperature in about 25 and 30 minutes corresponding to RF power of 1.5 and 0.5 kW. While in HP drying, the temperature of drying material reached nearly the drying air temperature value in about 310 minutes. Besides, the comparison between the heat and mass equations solving results and experimental drying data was also carried out with the analysis results confirmed that the predicted data by numerically solving the heat and mass transfer equations could be used to predict the experimental data accurately.","PeriodicalId":46200,"journal":{"name":"Frontiers in Heat and Mass Transfer","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85108657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INVESTIGATION AND OPTIMIZATION OF A THERMAL MANAGEMENT SYSTEM FOR LITHIUM-ION BATTERIES COMBINING CLOSED AIR-COOLING WITH PHASE CHANGE MATERIAL 闭式空冷与相变材料相结合的锂离子电池热管理系统的研究与优化

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Frontiers in Heat and Mass Transfer Pub Date : 2023-04-10 DOI: 10.5098/hmt.20.24

Xiaoyong Gu, Gang Wu, Bi-we Chen

引用次数: 0

ANALYTICAL SOLUTION OF THE EXTENDED GRAETZ PROBLEM IN MICROCHANNELS AND MICROTUBES WITH FIXED PRESSURE DROP 固定压降微通道和微管中扩展格雷兹问题的解析解

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Frontiers in Heat and Mass Transfer Pub Date : 2023-04-09 DOI: 10.5098/hmt.20.23

M. Shaimi, R. Khatyr, J. Khalid Naciri

{"title":"ANALYTICAL SOLUTION OF THE EXTENDED GRAETZ PROBLEM IN MICROCHANNELS AND MICROTUBES WITH FIXED PRESSURE DROP","authors":"M. Shaimi, R. Khatyr, J. Khalid Naciri","doi":"10.5098/hmt.20.23","DOIUrl":"https://doi.org/10.5098/hmt.20.23","url":null,"abstract":"This paper presents an exact analytical solution to the extended Graetz problem in microchannels and microtubes, including axial heat conduction, viscous dissipation, and rarefaction effects for an imposed constant wall temperature. The flow in the microchannel or microtube is assumed to be hydrodynamically fully developed. At the same time, the first-order slip-velocity and temperature jump models represent the wall boundary conditions. The energy equation is solved analytically, and the solution is obtained in terms of Kummer functions with expansion constants directly determined from explicit expressions. The local and fully developed Nusselt numbers are calculated in terms of the Péclet number, Brinkman number, Knudsen number, and thermal properties of the fluid. The constant pressure drop along the streamwise direction per unit length is imposed at a constant value and independent of the flow parameters, unlike the usual practice of fixing the average velocity. This solution can be used as the reference solution for optimization problems to enhance heat transfer using a fixed pressure drop. It is found that for no viscous dissipation and negligible axial heat conduction, the local Nusselt number is larger for imposed pressure drop compared to imposed average velocity. The thermal entrance length increases as the Knudsen number or the degree of temperature jump increases for imposed pressure drop, while it is approximately unchangeable for imposed average velocity. The quantitative differences between the cases of imposed pressure drop and imposed average velocity in the average Nusselt number over the largest thermal entrance length are reduced with the increase of axial heat conduction or viscous dissipation effects. The fully developed Nusselt number is the same for imposed pressure drop and imposed average velocity.","PeriodicalId":46200,"journal":{"name":"Frontiers in Heat and Mass Transfer","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81607240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

NUMERICAL CALCULATION OF REVERSE STARTUP OF A SMALL RADIAL VANE PUMP 小型径向叶片泵反启动的数值计算

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2023-04-08 DOI: 10.5098/hmt.20.22

Kaifeng Zhang, Feng-Lin Zhou, Liang Cheng, Haiyu Cai, Yu‐Liang Zhang, Minfeng Lv

引用次数: 0