Experimental study on improvinging thermal resistance of vertical enclosures based on radiation principle

Sisi LI; Wenhe ZHOU; Xuan HE; Liangbi WANG

doi:10.11889/j.1000-3436.2017.rrj.35.020801

您当前的位置：

首页 >

文章列表页 >

Experimental study on improvinging thermal resistance of vertical enclosures based on radiation principle

RADIATION PHYSICS | 更新时间：2021-12-10

- Experimental study on improvinging thermal resistance of vertical enclosures based on radiation principle
- Journal of Radiation Research and Radiation Processing Vol. 35, Issue 2, Pages: 20801(2017)
- 作者机构：
  
  1.兰州交通大学环境与市政工程学院兰州 730070
  2.兰州交通大学铁道车辆热工教育部重点实验室兰州 730070
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(51466007)
- DOI：10.11889/j.1000-3436.2017.rrj.35.020801
  CLC：
扫描看全文
Sisi LI, Wenhe ZHOU, Xuan HE, et al. Experimental study on improvinging thermal resistance of vertical enclosures based on radiation principle. [J]. Journal of Radiation Research and Radiation Processing 35(2):20801(2017)
DOI：

Sisi LI, Wenhe ZHOU, Xuan HE, et al. Experimental study on improvinging thermal resistance of vertical enclosures based on radiation principle. [J]. Journal of Radiation Research and Radiation Processing 35(2):20801(2017) DOI： 10.11889/j.1000-3436.2017.rrj.35.020801.

摘要

列车车体围护结构中普遍存在的狭窄空腔增加了车体围护结构的热阻，同时也为进一步降低空腔的辐射换热份额创造了条件。通过实验方法，利用粘贴铝箔方式改变空腔内壁面辐射特性，以期改善空腔热工性能效果进行了研究。结果发现：常规车体壁面空腔辐射换热份额很大，不容忽视；在空腔内壁面附着铝箔等高反射率表层，可有效降低空腔的辐射换热份额，且随着空腔厚度的增大，空腔当量导热系数降低的效果更为明显，最大可达无铝箔空腔的62%左右；冷面单面粘贴铝箔方式的效果与热面单面粘贴铝箔方式的效果几乎相同，双面粘贴铝箔方式效果最好，优于单面铝箔方式5%左右。

Abstract

The narrow space in a railcar body increase its thermal resistance and also enable improving the thermal resistance of the railcar body based on the radiation principle. In this study, the improvement of the thermal resistance by pasting aluminum foils on the inner surfaces of the enclosure has been tested. The results show that the heat radiation in the enclosure cannot be neglected because the amount of radiated heat is very large. An effective method to reduce the heat radiation in the enclosure involves pasting aluminum foils on the inner surfaces, and the effect becomes increasingly obvious, with up to 62% reduction in the radiated heat, as the enclosure thickness. Further, the improvement in the enclosure thermal resistance by pasting aluminum foils on one of the inner surfaces is almost the same whether on the cold side or the hot side, and the improvement when both inner surfaces are covered with aluminum foils is about 5% better than that when one surface is covered.

关键词

狭窄空腔辐射换热强化空腔热阻当量导热系数

Keywords

Narrow enclosureHeat radiationImproving thermal resistanceEquivalent thermal conductivity

references

徐瑛 , 陈志刚 , 刘蔚魏 . 铁路客车空调负荷研究 . 制冷空调与电力机械 , 2006 . 27 (5 ):73 -75 . http://www.cnki.com.cn/Article/CJFDTOTAL-SLJX200605025.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-SLJX200605025.htm, .

Ying XU , Zhigang CHEN , Weiwei LIU . Railway passenger air conditioning load research . Refrigeration Air Conditioning & Electric Power Machinery , 2006 . 27 (5 ):73 -75 . http://www.cnki.com.cn/Article/CJFDTOTAL-SLJX200605025.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-SLJX200605025.htm, .

B A Meyer , J W Mitchell , M M El-Wakil . The effect of thermal wall properties on natural convection in inclined rectangular cells . Journal of Heat Transfer , 1982 . 104 (1 ):111 -117 . DOI:10.1115/1.3245036http://doi.org/10.1115/1.3245036 .

A Muftuoglu , E Bilgen . Conjugate heat transfer in open cavities with a discrete heater at its optimized position . International Journal of Heat Mass Transfer , 2008 . 51 779 -788 . DOI:10.1016/j.ijheatmasstransfer.2007.04.017http://doi.org/10.1016/j.ijheatmasstransfer.2007.04.017 .

F Penot . Numerical calculation of two-dimensional natural convection in isothermal open cavities . Numerical Heat Transfer, Part A , 1982 . 5 (4 ):421 -437 . DOI:10.1080/10407788208913457http://doi.org/10.1080/10407788208913457 .

李晓村 , 侯梅英 . 动车组构造 , :成都西南交通大学出版社 , 2009 . 181 -183 . http://www.cnki.com.cn/Article/CJFDTOTAL-SYQY201603027.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-SYQY201603027.htm, .

Xiaocun LI , Meiying HOU . EMU structure , :Chengdu Southwest Jiaotong University Press , 2009 . 181 -183 . http://www.cnki.com.cn/Article/CJFDTOTAL-SYQY201603027.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-SYQY201603027.htm, .

M J Jalal , H Q Alwan . CFD simulation for a road vehicle cabin . Japanese Psychological Review , 2007 . 18 (2 ):123 -142 . http://www.academia.edu/9200706/CFD_Simulation_for_a_Road_Vehicle_Cabinhttp://www.academia.edu/9200706/CFD_Simulation_for_a_Road_Vehicle_Cabin, .

袁辉 , 姜金磊 . 高速列车铝合金型材传热系数的仿真计算与试验研究 . 铁道车辆 , 2013 . 51 (6 ):7 -9 . http://www.cnki.com.cn/Article/CJFDTOTAL-TDCL201306002.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-TDCL201306002.htm, .

Hui YUAN , Jinlei JIANG . Simulation and experimental study on heat transfer coefficient of aluminum alloy profiles for high-speed trains . Rolling Stock , 2013 . 51 (6 ):7 -9 . http://www.cnki.com.cn/Article/CJFDTOTAL-TDCL201306002.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-TDCL201306002.htm, .

W W Liu , Q H Deng , W J Huang , 等 . Variation in cooling load of a moving air-conditioned train compartment under the effects of ambient conditions and body thermal storage . Applied Thermal Engineering , 2011 . 31 (6-7 ):1150 -1162 . DOI:10.1016/j.pplthermaleng.2010.12.010http://doi.org/10.1016/j.pplthermaleng.2010.12.010 .

D A Kaminski , C Prakash . Conjugate natural convection in square enclosure: effect of conduction in one of the vertical walls . International Journal of Heat Mass Transfer , 1986 . 29 (12 ):1979 -1988 . DOI:10.1016/0017-9310(86)90017-7http://doi.org/10.1016/0017-9310(86)90017-7 .

G Lauriat , G Desrayaud . Effect of surface radiation on conjugate natural convection in partially open enclosures . International Journal of Thermal Sciences , 2006 . 45 (4 ):335 -346 . DOI:10.1016/j.ijthermalsci.2005.07.002http://doi.org/10.1016/j.ijthermalsci.2005.07.002 .

战乃岩 , 杨茉 , 徐沛巍 . 封闭腔导热、辐射与自然对流耦合换热的数值研究 . 中国科学 (技术科学) , 2010 . 40 (9 ):1052 -1060 . http://www.cnki.com.cn/Article/CJFDTOTAL-JEXK201009013.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-JEXK201009013.htm, .

Naiyan ZHAN , Mo YANG , Peiwei XU . Numerical study of thermal radiation in enclosure coupled with natural convection heat transfer . Chinese Science (Technical Sciences) , 2010 . 40 (9 ):1052 -1060 . http://www.cnki.com.cn/Article/CJFDTOTAL-JEXK201009013.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-JEXK201009013.htm, .

S M El-Sherbiny , K G T Hollands , G D Raithby . The effect of thermal boundary conditions on natural convection in vertical and inclined air layers . Journal of Heat Transfer , 1982 . 104 (2 ):515 -520 . DOI:10.1115/1.3245123http://doi.org/10.1115/1.3245123 .

D M Kim , R Viskanta . Effect of wall conduction and radiation on natural convection in a rectangular cavity . Numerical Heat Transfer , 1984 . 7 (3 ):449 -470 . DOI:10.1080/01495728408961835http://doi.org/10.1080/01495728408961835 .

任泽霈 , 张立宁 , 贾力 . 封闭空间中自然对流与导热、辐射的复合换热 . 工程热物理学报 , 1988 . 9 (3 ):245 -250 . http://www.cnki.com.cn/Article/CJFDTOTAL-GCRB198803012.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-GCRB198803012.htm, .

Zepei REN , Lining ZHANG , Li JIA . Natural convection and heat transfer in a closed space . Journal of Engineering Thermophysics , 1988 . 9 (3 ):245 -250 . http://www.cnki.com.cn/Article/CJFDTOTAL-GCRB198803012.htmhttp://www.cnki.com.cn/Article/CJFDTOTAL-GCRB198803012.htm, .

D W Larson , R Viskanta . Transient combined laminar free convection and radiation in a rectangular enclosure . Journal of Fluid Mechanics , 1976 . 78 (1 ):65 -85 . DOI:10.1017/S0022112076002334http://doi.org/10.1017/S0022112076002334 .

方武. 建筑保温墙体薄空气间层空气湿度对传热影响的实验研究[D]. 安徽: 安徽建筑大学, 2015.

FANG Wu. Experimental study on the influence of air humidity on heat transfer in thin air interlayer of building insulation wall[D]. Anhui: Anhui University of Architecture, 2015.

马晓婧. 铝型材与多隔热层组合板传热特性的实验与数值研究[D]. 兰州: 兰州交通大学, 2014.

MA Xiaojing. Experimental and numerical study of aluminum and multi-layer composite panels heat insulation properties[D]. Lanzhou: Lanzhou Jiaotong University, 2014.

R J Moffat . Contributions to the theory of single-sample uncertainty analysis . Journal of Fluids Engineering , 1982 . 104 (2 ):250 -258 . DOI:10.1115/1.3241818http://doi.org/10.1115/1.3241818 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

⁰