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Investigation of flow structures during HFE-7100 refrigerant condensation

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The experimental research of environmentally friendly refrigerant HFE-7100 condensation in pipe minichannels was conducted. During the investigations of HFE-7100 condensation in a minichannel with internal diameter 2 mm together with visualization of flow patterns was made. Visualization results were compared with existing flow structure maps. The identification of the range of flow patterns occurrence during the condensation process of low-pressure refrigerant HFE-7100 was made. The tests were performed throughout the whole range of condensation process.
Rocznik
Strony
25--34
Opis fizyczny
Bibliogr. 11 poz., fot., rys.
Twórcy
autor
  • Technical University of Koszalin, Department of Heat and Refrigeration Engineering, Racławicka 15-17, 75-620 Koszalin, Poland
autor
  • Technical University of Koszalin, Department of Heat and Refrigeration Engineering, Racławicka 15-17, 75-620 Koszalin, Poland
autor
  • Technical University of Koszalin, Department of Heat and Refrigeration Engineering, Racławicka 15-17, 75-620 Koszalin, Poland
  • National University of Shipbuilding name after admiral Makarov, Heroev Stalingrada ave. 9, 54025 Nikolaev, Ukraine
Bibliografia
  • [1] AKBAR M.K., PLUMMER R.D., GHIAASIAAN A.: On gas liquid two-phase flow regimes in microchannels. Int. J. Multiphas. Flow 29(2003), 855–865.
  • [2] BOHDAL T., CHARUN H., SIKORA M.: Comparative investigation of the condensation of R134a and R404A refrigerants in pipe minichannels. Int. J. Heat Mass Tran. 54(2011), 1963–1974.
  • [3] CAVALLINI A., DEL COL D., DORETTI L., MATKOVIC M., ROSSETTO L., ZILIO C.: Two-Phase frictional pressure gradient of R236ea, R134a and R410A inside multi-port mini-channels. Exp. Therm. Fluid Sci. 29(2005), 861–870.
  • [4] COLEMAN J., GARIMELLA S.: Two-phase flow regimes in round, square and rectangular tubes during condensation of refrigerant R134a. Int. J. Refrigeration 26(2003), 1, 117–128.
  • [5] EWING M.E., WEINANDY J.J., CHRISTENSEN R.N.:Observations of two-phase flow patterns in a horizontal circular channel. Heat Transfer Eng. 20(1999), 1, 9–14.
  • [6] GARIMELLA S.: Condensation flow mechanisms in microchannels: basis for pressure drop and heat transfer models. Heat Transfer Eng. 25(2004), 1, 104–116.
  • [7] ŁUKASZUK M.: Application of Taitel and Dukler flow maps for identification of two-phase flow structures in small diameter channels. In: Proc. 19th Nat. Congr. Thermodynamicists Sopot 2005 (in Polish).
  • [8] ŁUKASZUK M.: Experimental investigation of two-phase steam flux in horizontal channels of small diameter. Heat Trans. Eng. 31(2010), 1, 331–334.
  • [9] TABATABAI A., FAGHRI A.: A new two-phase flow map and transition boundary accounting for surface tension effects in horizontal miniature and micro tubes. J. Heat Transfer 123(2001), 958–968.
  • [10] THOME J.R.: Engineering Data Book III: Chapter 8 – Condensation inside tubes. Wolverine Tube, Inc. (2004-2008).
  • [11] WENGEL M., MIŁASZEWICZ B., ULBRICH R.: Some problems of hydrodynamics of two-phase flow mixtures in minichannels. Arch. Thermodyn. 35(2014), 4, 93–101.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-990cd13c-defb-484a-aa62-03e80c334220
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