Paper Title:
Study on the Heat Transfer in Granular Materials by DEM
  Abstract

The heat transfer in granular materials can be found in many industry processes. But the phenomenon is not well understood. A particle contact heat transfer model (PCHM) was developed by taking each independent mechanism into account. The model combined with DEM was used to simulate heat transfer between particles and inserted heating surface. Comparing with each mechanism, the heat conduction through contact area has the most contribute to apparent effective quantity of heat transfer. The key factors effecting on Qeff include: the number of particles contacting with heating surface, the contact time, and the contact area. When the average diameter is same, the diameter distribution has little effects on heat transfer. While the average diameter is different, the effective heat transfer coefficient decreases with the increasing of particle diameter. The quantity of heat transfer is spatially non-uniform.

  Info
Periodical
Advanced Materials Research (Volumes 233-235)
Edited by
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
Pages
2949-2954
DOI
10.4028/www.scientific.net/AMR.233-235.2949
Citation
J. T. Wu, Y. Q. Dai, Z. W. Wang, F. X. Liu, "Study on the Heat Transfer in Granular Materials by DEM", Advanced Materials Research, Vols. 233-235, pp. 2949-2954, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ting Xie, Gang Chen, Yan Guo Yin, Ming Hua Jiao, Jian Wei Yu, Zhao Ming Yan, Zhen Xing Xu
Abstract:Due to the poor thermal conduction of polytetrafluoroethylene (PTFE), some fillers are often added into PTFE matrix to improve its thermal...
655
Authors: Jie Gao, Peng Yun Song, Xiao Yun Hu, Fang Bo Ma
Chapter 1: Material Section
Abstract:It is a key technology in the design and application of mechanical seals as how to determine and control its face temperature. According to...
500
Authors: Xiao Chuan Li, Xiang Yong Huang
Chapter 14: Engineering Materials and Processing Technologies
Abstract:Heat conduction performance of particle dispersive composites has been numerically investigated by using Finite volume method (FVM) and...
1808
Authors: Cai Hua Huang, Xiao Hua Sun, Yi Hua Sun, Jun Zou
Chapter 13: Optical/Electronic/Magnetic, New Functional and Energy Materials
Abstract:A steady thermal conduction model was presented to study the temperature field and thermal stress distribution in film irradiated by...
2609
Authors: Ke Li, Jian Ming Liu, Xin Zhang
Chapter 4: Computational Methods and Information Technologies
Abstract:Human demand for energy is increasing, non-renewable energy storage on Earth drastic drop in the new energy is in exploring the application...
234