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Optimal design of plate heat exchangers with and without pressure drop specifications

Wang, Lieke LU and Sundén, Bengt LU (2003) In Applied Thermal Engineering 23(3). p.295-311
Abstract
The traditional design method for plate heat exchangers(PHEs), either epsilon-number of transfer units (epsilon-NTU) or logarithmic mean temperature difference method, involves many trials in order to meet the pressure drop constraints. This can be avoided through the developed design method, which takes the full utilization of the allowable pressure drops as a design objective. The proposed method is valid for the design situations with and without pressure drop specifications. In the case of the design with pressure drop specification, only one stream can fully utilize the allowable pressure drop. In the case of no pressure drop specification, allowable pressure drops can be determined through economical optimization. Compared to the... (More)
The traditional design method for plate heat exchangers(PHEs), either epsilon-number of transfer units (epsilon-NTU) or logarithmic mean temperature difference method, involves many trials in order to meet the pressure drop constraints. This can be avoided through the developed design method, which takes the full utilization of the allowable pressure drops as a design objective. The proposed method is valid for the design situations with and without pressure drop specifications. In the case of the design with pressure drop specification, only one stream can fully utilize the allowable pressure drop. In the case of no pressure drop specification, allowable pressure drops can be determined through economical optimization. Compared to the previous design method, the proposed method does not require many trial iterations. Instead, all heat exchanger parameters, including plate size, number of passes, path, fluid velocity, etc., are determined in a straightforward way. Moreover, the suggested method can guarantee that the optimized values of allowable pressure drops can be fully utilized simultaneously by the two streams. In addition, the optimal corrugation angle is discussed for the most common chevron-type PHEs. (C) 2002 Elsevier Science Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Thermal Engineering
volume
23
issue
3
pages
295 - 311
publisher
Elsevier
external identifiers
  • wos:000180698100003
  • scopus:0037289575
ISSN
1359-4311
DOI
10.1016/S1359-4311(02)00195-3
language
English
LU publication?
yes
id
3a200133-6f7f-4257-b0eb-fbc32386b5dc (old id 319435)
date added to LUP
2007-09-24 07:20:01
date last changed
2018-02-18 03:39:39
@article{3a200133-6f7f-4257-b0eb-fbc32386b5dc,
  abstract     = {The traditional design method for plate heat exchangers(PHEs), either epsilon-number of transfer units (epsilon-NTU) or logarithmic mean temperature difference method, involves many trials in order to meet the pressure drop constraints. This can be avoided through the developed design method, which takes the full utilization of the allowable pressure drops as a design objective. The proposed method is valid for the design situations with and without pressure drop specifications. In the case of the design with pressure drop specification, only one stream can fully utilize the allowable pressure drop. In the case of no pressure drop specification, allowable pressure drops can be determined through economical optimization. Compared to the previous design method, the proposed method does not require many trial iterations. Instead, all heat exchanger parameters, including plate size, number of passes, path, fluid velocity, etc., are determined in a straightforward way. Moreover, the suggested method can guarantee that the optimized values of allowable pressure drops can be fully utilized simultaneously by the two streams. In addition, the optimal corrugation angle is discussed for the most common chevron-type PHEs. (C) 2002 Elsevier Science Ltd. All rights reserved.},
  author       = {Wang, Lieke and Sundén, Bengt},
  issn         = {1359-4311},
  language     = {eng},
  number       = {3},
  pages        = {295--311},
  publisher    = {Elsevier},
  series       = {Applied Thermal Engineering},
  title        = {Optimal design of plate heat exchangers with and without pressure drop specifications},
  url          = {http://dx.doi.org/10.1016/S1359-4311(02)00195-3},
  volume       = {23},
  year         = {2003},
}