Frontiers in Heat and Mass Transfer最新文献_第9页

ENTROPY GENERATION OF THREE DIMENSIONAL BINGHAM NANOFLUID FLOW WITH CARBON NANOTUBES PASSING THROUGH PARALLEL PLATES 碳纳米管通过平行板时三维bingham纳米流体流动的熵生成

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-10-25 DOI: 10.5098/hmt.19.17

N. Vijaya, P. Nagalakshmi

引用次数: 1

NUMERICAL INVESTIGATION OF COUPLED NATURAL CONVECTION AND SURFACE RADIATION IN A SQUARE CAVITY WITH THE LINEARLY HEATED SIDE WALL(S) 带线性加热侧壁的方形腔内自然对流与表面辐射耦合的数值研究

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-10-16 DOI: 10.5098/hmt.19.16

R. Prasad, S. Singh, A. Gupta

引用次数: 1

EXERGY ANALYSIS OF A REFRIGERATION SYSTEM WITH A MINICHANNEL CONDENSER USING R134A REFRIGERANT 采用r134a制冷剂的小通道冷凝器制冷系统的火用分析

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-10-13 DOI: 10.5098/hmt.19.15

V. Bhatkar, Anirban Sur, A. Roy

引用次数: 0

NUMERICAL ANALYSIS TO PREDICT THE BEHAVIOR OF LIQUID VAPOR SLUG FLOW IN VERTICALLY PLACED U-SHAPED CLOSED CAPILLARY TUBE 垂直放置u形封闭毛细管中液汽段塞流动特性的数值分析

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-10-07 DOI: 10.5098/hmt.19.14

R. D. Bhagat, S. Deshmukh

{"title":"NUMERICAL ANALYSIS TO PREDICT THE BEHAVIOR OF LIQUID VAPOR SLUG FLOW IN VERTICALLY PLACED U-SHAPED CLOSED CAPILLARY TUBE","authors":"R. D. Bhagat, S. Deshmukh","doi":"10.5098/hmt.19.14","DOIUrl":"https://doi.org/10.5098/hmt.19.14","url":null,"abstract":"Numerical analysis of liquid vapor slug flow in a vertically placed U-shaped closed capillary tube is carried out with family of hydrocarbon fluid like Acetone, Ethanol, Methanol and Pentane. A 3D computational domain has been developed for vertically placed U-shaped capillary tube sealed at both end with three small turns in evaporator section, two small and one large turn in condenser section. The diameter of vertically placed U-shaped capillary tube is taken as 2mm. The volume of fluid (VOF) approach, suitable model of K-epsilon is used to predict the behavior of liquid vapor slug flow along the wall of capillary tube. Fill ratio (FR) of 61% is used with the working fluid that occupies 61% of the total volume of tube. At the start of iteration process the evaporator and condenser temperature are set to 343 K and 298 K. The liquid, vapor slug flow inside the capillary tube and flow patterns are observed for Acetone, Ethanol, Methanol and Pentane. The contours of liquid volume fraction and wall temperature are observed along the length of tube. Alternate liquid and vapor slug formation and the complex phenomenon of evaporation and condensation process are visualized in the analysis. The aim of the numerical analysis is to find the suitable working fluid, models, simulation settings that accurately predict the phase change phenomenon and to investigate the effect of liquid vapor slug flow, changing simulation parameters on the performance of U-shaped capillary tube.","PeriodicalId":46200,"journal":{"name":"Frontiers in Heat and Mass Transfer","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77031448","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

RESEARCH ON A NOVEL CONCEPT OF SELF-FORMING AIR COOLING BATTERY RACK 一种新型自成型风冷蓄电池架的研究

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-10-01 DOI: 10.5098/hmt.19.13

Xinghua Ju, Mingjie Zhang, Kailei Yang, Le Qin, Xiaole Yao, Qian Liu

{"title":"RESEARCH ON A NOVEL CONCEPT OF SELF-FORMING AIR COOLING BATTERY RACK","authors":"Xinghua Ju, Mingjie Zhang, Kailei Yang, Le Qin, Xiaole Yao, Qian Liu","doi":"10.5098/hmt.19.13","DOIUrl":"https://doi.org/10.5098/hmt.19.13","url":null,"abstract":"Lithium-ion batteries used for energy storage systems will release amount of heat during operation. It will cause serious consequences of thermal runaway if not dissipate in time. In this study, a self-forming air-cooled battery rack of the energy storage system is established based on the normal battery rack for energy storage and the shape of the energy storage battery itself. The frames of the battery rack acts as air ducts, which greatly reduce the system complexity. In this paper, the heat generation model is established based on the experiment, and the four battery rack forms are studied by CFD simulation. The flow uniformity of the two-level shunt structure, the maximum temperature of the battery, the temperature difference and the overall pressure drop of the battery rack are analyzed. It was found that the self-forming battery rack in the form of Case Ⅳ has the highest flow rate and temperature uniformity due to the tapered air ducts. Case Ⅳ can also resist flow non-uniformity when increase the flow rate. The maximum temperature can be maintained at 33.8 o C at 0.5 C under the 46 g/s flowrate. Where the maximum bulk temperature difference between batteries and inside a single battery is less than 3.8 o C and 1 o C, respectively. The pressure drop is only 4.8 Pa . What’s more, Case Ⅳ achieves optimal cooling performance at a 92 g/s flow rate, under which the maximum bulk temperature is 31.8 o C with the pressure drop of 19.5 Pa.","PeriodicalId":46200,"journal":{"name":"Frontiers in Heat and Mass Transfer","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90309494","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

EFFECT OF DIFFUSION-THERMO ON MHD FLOW OF MAXWELL FLUID WITH HEAT AND MASS TRANSFER 扩散热对传热传质麦克斯韦流体MHD流动的影响

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-09-23 DOI: 10.5098/hmt.19.12

M. Ramzan, Z. Nisa, M. Nazar

引用次数: 3

NUMERICAL AND EXPERIMENTAL INVESTIGATION OF NONLUBRICATED AIR SCROLL EXPANDER DERIVED FROM A REFRIGERANT SCROLL COMPRESSOR 冷媒涡旋压缩机非润滑空气涡旋膨胀机的数值与实验研究

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-09-19 DOI: 10.5098/hmt.19.11

Ramakrishna Konijeti, Aparna Kottapalli

引用次数: 2

STUDY ON HEAT TRANSFER AUGMENTATION IN AN AIR HEATER USING RECTANGULAR WAVY FIN TURBULATORS 矩形波翅型紊流器在空气加热器中的强化传热研究

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-09-19 DOI: 10.5098/hmt.19.10

Shiva Kumar, Nitesh Kumar

引用次数: 0

VISUALIZATION OF INDUCED COUNTER-ROTATING VORTICES FOR ELECTRIC VEHICLES BATTERY MODULE THERMAL MANAGEMENT 电动汽车电池模块热管理中诱导反旋涡的可视化

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-09-15 DOI: 10.5098/hmt.19.9

A. C. Budiman, S. Hasheminejad, S. Sudirja, A. Mitayani, S. Winoto

引用次数: 2

THE EFFECTS OF NUSSELT, REYNOLDS NUMBER, AND PRESSURE DROP ON THE THERMAL PERFORMANCE OF PIERCED PIN FINS 努赛尔、雷诺数和压降对穿针翅热性能的影响

IF 1.8

Frontiers in Heat and Mass Transfer Pub Date : 2022-09-06 DOI: 10.5098/hmt.19.8

Wadhah H. Al Doori

引用次数: 0