Thermal conductivity of frost layer on finned-tube vaporizer based on fractal theory

doi:10.3969/j.issn.0438-1157.2012.12.017

IR > 石油化工学院

	Thermal conductivity of frost layer on finned-tube vaporizer based on fractal theory
	Chen, Shuping; Yao, Shuting; Xie, Fushou; Han, Hongyin; Chang, Zhixin
	2012-12-01
发表期刊	Huagong Xuebao/CIESC Journal
ISSN	04381157
卷号	63 期号:12 页码:3855-3860
摘要	A numerical simulation for frost formation and growth on the surface of finned-tube vaporizer was carried out based on the diffusion limited aggregation model of fractal theory, and images of frost formation and growth at different stages were obtained by experimental observations. For the frost layer profile on the surface of vaporizer, fractal dimension of pore area distribution and fractal porosity were calculated. The simulation results are in good agreement with experiments. Then the fractal model for heat conduction through the frost layer was established and the thermal resistance method was used to get an expression for thermal conductivity of frost layer. The result shows that the calculated thermal conductivity of frost layer falls in the range of measured data. Compared with other thermal conductivity models, the introduction of profile area distribution fractal dimension into the thermal conductivity model is appropriate, which is a new method for the theoretical study for thermal conductivity of frost layer. © All Rights Reserved.
关键词	Computer simulation Fins (heat exchange) Fractal dimension Frost resistance Heat conduction Heat resistance Numerical models Tubes (components) Different stages Diffusion limited aggregation model Finned tube Fractal model Frost layers Theoretical study Thermal conductivity model Thermal resistance method
DOI	10.3969/j.issn.0438-1157.2012.12.017
收录类别	EI
语种	中文
出版者	Chemical Industry Press
EI入藏号	20130315910198
EI主题词	Thermal conductivity
EI分类号	616.1 Heat Exchange Equipment and Components - 619.1 Pipe, Piping and Pipelines - 641.1 Thermodynamics - 641.2 Heat Transfer - 723.5 Computer Applications - 921 Mathematics
来源库	Compendex
分类代码	616.1 Heat Exchange Equipment and Components - 619.1 Pipe, Piping and Pipelines - 641.1 Thermodynamics - 641.2 Heat Transfer - 723.5 Computer Applications - 921 Mathematics
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111103
专题	石油化工学院
作者单位	College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Chen, Shuping,Yao, Shuting,Xie, Fushou,et al. Thermal conductivity of frost layer on finned-tube vaporizer based on fractal theory[J]. Huagong Xuebao/CIESC Journal,2012,63(12):3855-3860.
APA	Chen, Shuping,Yao, Shuting,Xie, Fushou,Han, Hongyin,&Chang, Zhixin.(2012).Thermal conductivity of frost layer on finned-tube vaporizer based on fractal theory.Huagong Xuebao/CIESC Journal,63(12),3855-3860.
MLA	Chen, Shuping,et al."Thermal conductivity of frost layer on finned-tube vaporizer based on fractal theory".Huagong Xuebao/CIESC Journal 63.12(2012):3855-3860.