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Flow regime based heat transfer correlation for R245fa in a 3 mm tube

Marijn Billiet UGent, Bernd Ameel UGent, Romain Charnay, Rémi Revellin and Michel De Paepe UGent (2018) INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER . 117. p.1304-1311
abstract
241 heat transfer measurements for R254fa were conducted. The heat transfer coefficient was determined for a smooth stainless steel tube with an inner tube diameter of 3 mm. The experiments were conducted for five mass fluxes (100, 300, 500, 700 and 1000 kg/(m2 s)), three heat fluxes (10, 30 and 50 kW/m2) and at three saturation temperatures (40 °C, 70 °C and 125 °C). The experiments were used to determine the influence of the saturation temperature, mass flux, heat flux, vapour quality and flow regime on the heat transfer coefficient. At a low saturation temperature, the heat transfer coefficient increases with an increasing mass flux. However, at a high saturation temperature the heat transfer coefficient decreases with an increasing mass flux. Furthermore, the heat transfer coefficient increases with increasing vapour quality at a low saturation temperature. On the contrary, the heat transfer coefficient decreases at higher saturation temperatures. Due to the fact that most heat transfer models found in literature are developed for low saturation temperatures and one flow regime, the heat transfer coefficients predicted by the existing models do not comply very well with the experimental data. Thus, a new heat transfer correlation for R254fa was proposed. The new correlation has a Mean Absolute Error of 11.7% for the experimental data of a tube with an inner tube diameter of 3 mm. Finally, this new correlation was also verified with R245fa datasets of other authors.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
in press
subject
keyword
two-phase, refrigerant, heat transfer measurement
journal title
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
editor
B. Weigand
volume
117
pages
8 pages
publisher
Elsevier BV
ISSN
0017-9310
DOI
10.1016/j.ijheatmasstransfer.2017.10.062
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8536269
handle
http://hdl.handle.net/1854/LU-8536269
date created
2017-11-06 08:24:15
date last changed
2017-11-07 08:06:12
@article{8536269,
  abstract     = {241 heat transfer measurements for R254fa were conducted. The heat transfer coefficient was determined for a smooth stainless steel tube with an inner tube diameter of 3 mm. The experiments were conducted for five mass fluxes (100, 300, 500, 700 and 1000 kg/(m2 s)), three heat fluxes (10, 30 and 50 kW/m2) and at three saturation temperatures (40 {\textdegree}C, 70 {\textdegree}C and 125 {\textdegree}C). The experiments were used to determine the influence of the saturation temperature, mass flux, heat flux, vapour quality and flow regime on the heat transfer coefficient.
At a low saturation temperature, the heat transfer coefficient increases with an increasing mass flux. However, at a high saturation temperature the heat transfer coefficient decreases with an increasing mass flux. Furthermore, the heat transfer coefficient increases with increasing vapour quality at a low saturation temperature. On the contrary, the heat transfer coefficient decreases at higher saturation temperatures.
Due to the fact that most heat transfer models found in literature are developed for low saturation temperatures and one flow regime, the heat transfer coefficients predicted by the existing models do not comply very well with the experimental data. Thus, a new heat transfer correlation for R254fa was proposed. The new correlation has a Mean Absolute Error of 11.7\% for the experimental data of a tube with an inner tube diameter of 3 mm. Finally, this new correlation was also verified with R245fa datasets of other authors.},
  author       = {Billiet, Marijn and Ameel, Bernd and Charnay, Romain and Revellin, R{\'e}mi and De Paepe, Michel},
  editor       = {Weigand, B.},
  issn         = {0017-9310},
  journal      = {INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER                                    },
  keyword      = {two-phase,refrigerant,heat transfer measurement},
  language     = {eng},
  pages        = {1304--1311},
  publisher    = {Elsevier BV},
  title        = {Flow regime based heat transfer correlation for R245fa in a 3\unmatched{202f}mm tube},
  url          = {http://dx.doi.org/10.1016/j.ijheatmasstransfer.2017.10.062},
  volume       = {117},
  year         = {2018},
}

Chicago
Billiet, Marijn, Bernd Ameel, Romain Charnay, Rémi Revellin, and Michel De Paepe. 2018. “Flow Regime Based Heat Transfer Correlation for R245fa in a 3 Mm Tube.” Ed. B. Weigand. International Journal of Heat and Mass Transfer  117: 1304–1311.
APA
Billiet, M., Ameel, B., Charnay, R., Revellin, R., & De Paepe, M. (2018). Flow regime based heat transfer correlation for R245fa in a 3 mm tube. (B. Weigand, Ed.)INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER  , 117, 1304–1311.
Vancouver
1.
Billiet M, Ameel B, Charnay R, Revellin R, De Paepe M. Flow regime based heat transfer correlation for R245fa in a 3 mm tube. Weigand B, editor. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER  . Elsevier BV; 2018;117:1304–11.
MLA
Billiet, Marijn, Bernd Ameel, Romain Charnay, et al. “Flow Regime Based Heat Transfer Correlation for R245fa in a 3 Mm Tube.” Ed. B. Weigand. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER  117 (2018): 1304–1311. Print.