Experimental study on the void fraction during two-phase flow of R1234yf in smooth horizontal tubes

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

  • Juan Jose Garcia Pabon
  • Leandro C. Pereira
  • Gleberson Humia
  • Ali Khosravi

  • Rémi Revellin
  • Jocelyn Bonjour
  • Luiz Machado

Organisaatiot

  • Universidade Federal de Minas Gerais
  • Centro Federal de Educacao Tecnologica de Minas Gerais
  • Université de Lyon
  • Federal University of Itajubá

Kuvaus

Void fraction is an important parameter to design and simulate thermal systems involving two-phase flows. In this research, an experimental investigation of the void fraction in adiabatic two-phase flow of R1234yf in horizontal and smooth tubes with an internal diameter of 4.8 mm was carried out. For the experimental tests, the vapor quality ranges from 0.1 to 1 while two saturation temperatures (15 and 25°C) and two mass flow rates (180 and 280 kg.m-2s-1) are investigated. The quick-closing valve(s) method is used to measure the volumetric void fraction. Tests are also undertaken with R134a used as a reference in this study. The results highlight that the void fraction of R1234yf is 5% lower than that for R134a. In addition, the experimental data of R1234yf were compared against seven correlations from the literature: the Baroczy and the Hughmark correlations were shown to provide the best prediction, with a mean absolute error of 2% and 3.2%, respectively.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut103-112
Sivumäärä10
JulkaisuINTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
Vuosikerta104
Varhainen verkossa julkaisun päivämäärä10 toukokuuta 2019
TilaJulkaistu - 1 elokuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 33609809