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Performance Analysis of Aluminum and Graphite Foam Heat Exchangers Under Countercurrent Arrangement

Lin, Wamei LU ; Yuan, Jinliang LU and Sundén, Bengt LU (2014) In Heat Transfer Engineering 35(6-8). p.730-737
Abstract
Due to the increasing power requirement and the limited available space in the vehicles, a countercurrent heat exchanger (HEX) is proposed for the position on the roof of the vehicle compartment. Furthermore, a new material, graphite foam with high thermal conductivity and low density, is a potential material for HEXs in vehicles. In order to evaluate the performance of the graphite foam HEX, the CFD computational fluid dynamics (CFD) approach is applied in a comparative study between the graphite foam and the aluminum HEXs under countercurrent flow condition. The analysis is conducted for the thermal performance (heat transfer coefficient) and the pressure loss. The simulation results show that the graphite foam HEX proves higher thermal... (More)
Due to the increasing power requirement and the limited available space in the vehicles, a countercurrent heat exchanger (HEX) is proposed for the position on the roof of the vehicle compartment. Furthermore, a new material, graphite foam with high thermal conductivity and low density, is a potential material for HEXs in vehicles. In order to evaluate the performance of the graphite foam HEX, the CFD computational fluid dynamics (CFD) approach is applied in a comparative study between the graphite foam and the aluminum HEXs under countercurrent flow condition. The analysis is conducted for the thermal performance (heat transfer coefficient) and the pressure loss. The simulation results show that the graphite foam HEX proves higher thermal performance than the aluminum HEX. However, due to the high pressure loss in the graphite foam HEX, the coefficient of performance in the graphite foam HEX is much lower than that of the aluminum HEX. A specific case study is carried out to evaluate the performance of graphite foam HEX as well. Useful recommendations are highlighted and provided to promote the development of the countercurrent flow HEXs in vehicles. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Heat Transfer Engineering
volume
35
issue
6-8
pages
730 - 737
publisher
Taylor & Francis
external identifiers
  • wos:000327295800021
  • scopus:84889682869
ISSN
1521-0537
DOI
10.1080/01457632.2013.838065
language
English
LU publication?
yes
id
c81897a1-94ce-4e3d-97d4-acde02bfeae6 (old id 4273253)
date added to LUP
2014-01-30 15:54:05
date last changed
2017-01-01 04:04:50
@article{c81897a1-94ce-4e3d-97d4-acde02bfeae6,
  abstract     = {Due to the increasing power requirement and the limited available space in the vehicles, a countercurrent heat exchanger (HEX) is proposed for the position on the roof of the vehicle compartment. Furthermore, a new material, graphite foam with high thermal conductivity and low density, is a potential material for HEXs in vehicles. In order to evaluate the performance of the graphite foam HEX, the CFD computational fluid dynamics (CFD) approach is applied in a comparative study between the graphite foam and the aluminum HEXs under countercurrent flow condition. The analysis is conducted for the thermal performance (heat transfer coefficient) and the pressure loss. The simulation results show that the graphite foam HEX proves higher thermal performance than the aluminum HEX. However, due to the high pressure loss in the graphite foam HEX, the coefficient of performance in the graphite foam HEX is much lower than that of the aluminum HEX. A specific case study is carried out to evaluate the performance of graphite foam HEX as well. Useful recommendations are highlighted and provided to promote the development of the countercurrent flow HEXs in vehicles.},
  author       = {Lin, Wamei and Yuan, Jinliang and Sundén, Bengt},
  issn         = {1521-0537},
  language     = {eng},
  number       = {6-8},
  pages        = {730--737},
  publisher    = {Taylor & Francis},
  series       = {Heat Transfer Engineering},
  title        = {Performance Analysis of Aluminum and Graphite Foam Heat Exchangers Under Countercurrent Arrangement},
  url          = {http://dx.doi.org/10.1080/01457632.2013.838065},
  volume       = {35},
  year         = {2014},
}