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

doi:10.3969/j.issn.0438-1157.2012.12.017

CORC > 兰州理工大学 > 兰州理工大学 > 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
刊名	Huagong Xuebao/CIESC Journal
	2012-12-01
卷号	63 期号:12 页码:3855-3860
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
ISSN号	04381157
DOI	10.3969/j.issn.0438-1157.2012.12.017
英文摘要	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.
语种	中文
出版者	Chemical Industry Press
内容类型	期刊论文
源URL	[http://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
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.