Advanced

Energy-efficient flat-tube heat exchangers for indirectly cooled display cabinets

Haglund Stignor, Caroline LU ; Sundén, Bengt LU and Fahlen, Per (2009) In International Journal of Refrigeration 32(6). p.1460-1471
Abstract
Different designs of flat-tube heat exchangers with plain fins have been evaluated theoretically in a parameter study in order to evaluate their performance potential in indirectly cooled display cabinets. Two different types of flat-tube heat exchangers were considered; one with serpentine fins and one with continuous plate fins. Both flat-tube heat exchanger types were adapted to the laminar flow regime on the liquid as well as on the air side. The performance of the two heat exchanger types had previously been verified experimentally under dehumidifying conditions. The results from this parameter study show that considerable savings in the required electric drive power to compressors, pumps and fans can be obtained in comparison with... (More)
Different designs of flat-tube heat exchangers with plain fins have been evaluated theoretically in a parameter study in order to evaluate their performance potential in indirectly cooled display cabinets. Two different types of flat-tube heat exchangers were considered; one with serpentine fins and one with continuous plate fins. Both flat-tube heat exchanger types were adapted to the laminar flow regime on the liquid as well as on the air side. The performance of the two heat exchanger types had previously been verified experimentally under dehumidifying conditions. The results from this parameter study show that considerable savings in the required electric drive power to compressors, pumps and fans can be obtained in comparison with the traditional cooling coil. The savings may be up to 15%. In addition, the required temperature difference for the flat-tube heat exchangers is so small that frost-free operation is possible, which would result in even larger savings. (C) 2009 Elsevier Ltd and IIR. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Energy efficiency, Calculation, Geometry, Finned tube, Tube, Heat exchanger, Display cabinet
in
International Journal of Refrigeration
volume
32
issue
6
pages
1460 - 1471
publisher
Elsevier
external identifiers
  • wos:000269466700036
  • scopus:67949103653
ISSN
0140-7007
DOI
10.1016/j.ijrefrig.2009.01.023
language
English
LU publication?
yes
id
6169b42f-ca68-4f02-9af3-7e9b4930e534 (old id 1476286)
date added to LUP
2009-09-29 11:55:25
date last changed
2017-04-16 04:02:42
@article{6169b42f-ca68-4f02-9af3-7e9b4930e534,
  abstract     = {Different designs of flat-tube heat exchangers with plain fins have been evaluated theoretically in a parameter study in order to evaluate their performance potential in indirectly cooled display cabinets. Two different types of flat-tube heat exchangers were considered; one with serpentine fins and one with continuous plate fins. Both flat-tube heat exchanger types were adapted to the laminar flow regime on the liquid as well as on the air side. The performance of the two heat exchanger types had previously been verified experimentally under dehumidifying conditions. The results from this parameter study show that considerable savings in the required electric drive power to compressors, pumps and fans can be obtained in comparison with the traditional cooling coil. The savings may be up to 15%. In addition, the required temperature difference for the flat-tube heat exchangers is so small that frost-free operation is possible, which would result in even larger savings. (C) 2009 Elsevier Ltd and IIR. All rights reserved.},
  author       = {Haglund Stignor, Caroline and Sundén, Bengt and Fahlen, Per},
  issn         = {0140-7007},
  keyword      = {Energy efficiency,Calculation,Geometry,Finned tube,Tube,Heat exchanger,Display cabinet},
  language     = {eng},
  number       = {6},
  pages        = {1460--1471},
  publisher    = {Elsevier},
  series       = {International Journal of Refrigeration},
  title        = {Energy-efficient flat-tube heat exchangers for indirectly cooled display cabinets},
  url          = {http://dx.doi.org/10.1016/j.ijrefrig.2009.01.023},
  volume       = {32},
  year         = {2009},
}