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Two-phase heat transfer measurements of R254fa at high saturation temperatures in horizontal mini-channels

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Abstract
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 50W/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 and vapour quality 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.
Keywords
ORC, boiling, multiphase, refrigerant, flow boiling

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MLA
Billiet, Marijn, et al. “Two-Phase Heat Transfer Measurements of R254fa at High Saturation Temperatures in Horizontal Mini-Channels.” 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2016.
APA
Billiet, M., Romain, C., Remi, R., Bokisova, L., & De Paepe, M. (2016). Two-phase heat transfer measurements of R254fa at high saturation temperatures in horizontal mini-channels. In 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics. Malaga, Spain.
Chicago author-date
Billiet, Marijn, Charnay Romain, Revellin Remi, Lenka Bokisova, and Michel De Paepe. 2016. “Two-Phase Heat Transfer Measurements of R254fa at High Saturation Temperatures in Horizontal Mini-Channels.” In 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics.
Chicago author-date (all authors)
Billiet, Marijn, Charnay Romain, Revellin Remi, Lenka Bokisova, and Michel De Paepe. 2016. “Two-Phase Heat Transfer Measurements of R254fa at High Saturation Temperatures in Horizontal Mini-Channels.” In 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics.
Vancouver
1.
Billiet M, Romain C, Remi R, Bokisova L, De Paepe M. Two-phase heat transfer measurements of R254fa at high saturation temperatures in horizontal mini-channels. In: 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics. 2016.
IEEE
[1]
M. Billiet, C. Romain, R. Remi, L. Bokisova, and M. De Paepe, “Two-phase heat transfer measurements of R254fa at high saturation temperatures in horizontal mini-channels,” in 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malaga, Spain, 2016.
@inproceedings{8060019,
  abstract     = {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 50W/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 and vapour quality 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.},
  author       = {Billiet, Marijn and Romain, Charnay and Remi, Revellin and Bokisova, Lenka and De Paepe, Michel},
  booktitle    = {12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics},
  isbn         = {978-1-77592-124-0},
  keywords     = {ORC,boiling,multiphase,refrigerant,flow boiling},
  language     = {eng},
  location     = {Malaga, Spain},
  title        = {Two-phase heat transfer measurements of R254fa at high saturation temperatures in horizontal mini-channels},
  year         = {2016},
}