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Condensation of refrigerant R407C in multiport minichannel section

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Analysis of the state of-the-art in research of refrigerant condensation in miniature heat exchangers, so-called multiports, was made. Results of refrigerant R407C condensation in a mini condenser made in the form of two bundles of tubular minichannels from stainless steel with an inside diameter 0.64 mm and length 100 mm have been presented. Two exchangers consisted of four minichannels and 8 minichannels have been investigated. The values of average heat transfer coefficient and frictional pressure drops throughout the condensation process were designated. The impact of the vapor quality of refrigerant and the mass flux density on the intensity of heat transfer and flow resistance were illustrated. A comparative analysis of test results for various refrigerants in both mini heat exchangers were made.
Rocznik
Strony
3--18
Opis fizyczny
Bibliogr. 20 poz., 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
Bibliografia
  • [1] Baummer T., Cetegen E., Ohadi M., Dessiatoun S.: Force fed evaporation and condensation utilizing advanced microstructured surfaces and microchannels. Microelectronics J. 39(2008), 7, 975–980.
  • [2] Bell K.J., Ghany M.A.: An approximate generalized design method for multicomponent partial condenser. AIChE Symp. Ser. 69(1973), 131, 72–79.
  • [3] Bohdal T., Charun H., Kuczyński W.: Investigation of the condensation process in the mini-systems of compressor refrigerating systems. In: Proc. Conf. COMPRESSORS’ 2009, 1–8.
  • [4] Bohdal T., Charun H., Sikora M.: Heat transfer during condensation of refrigerants in tubular minichannels. Arch. Thermodyn. 33(2012), 2, 3–22.
  • [5] Bohdal T., Charun H., Sikora M.: Empirical study of heterogeneous refrigerant condensation in pipe minichannels. Int. J. Refrig. 59(2015), 210–223.
  • [6] Bohdal T., Charun H., Kuczyński W., Sikora M.: Investigation of heat exchange and flow resistances during condensation of refrigeration media in minichannels. In: Proc. 19th Int. Symp. Research-Education-Technology, 2009 Bremen, 118–121.
  • [7] Bohdal T., Charun H., Sikora M.: Comparative investigations of the condensation of R134a and R404A refrigerants in pipe minichannels. Int. J. Heat Mass Trans. 54(2011), 9-10, 1963–1974. Unauthenticated
  • [8] Cavallini A., Censi G., Del Col D., Doretti L., Rossetto L.: Heat transfer coefficient HFC refrigerants during condensation at high temperature inside a enhanced tube. In: Proc. Int. Refrigeration and Air Conditioning Conf., Pardue Place Uni., 2002, 563, R8-2.
  • [9] Fronk B.M., Garimella S.: In-tube condensation of zeotropic fluid mixtures: A review. Int. J. Refrig. 36(2013), 534–561.
  • [10] Honda H., Wijayanta A.T., Takata N.: Condensation of R407C in a horizontal microfin tube. Int. J. Refrig. 28(2005), 2, 203–211.
  • [11] Lie Y.M., Su F.Q., Lai R.L., Lin T.F.: Experimental study of evaporation pressure drop characteristics of refrigerants R134a and R407C in horizontal small tubes. Int. J. Heat Mass Trans. 51(2008), 1-2, 294–301.
  • [12] Mikielewicz D.: Boiling and condensation in flow in the channels and minichannels. Wyd. Uczelniane Politechniki Gdańskiej, Gdańsk 2009.
  • [13] Mikielewicz D., Andrzejczyk R.: Comparative study of flow condensation in conventional and smal l diameter tubes. Arch. Thermodyn. 33(2012), 2, 67–83.
  • [14] Mishima K., Hibiki T.: Effect of inner diameter on some characteristics of airwater two-phase flow in capillary tubes. Trans. ISME B 61(1995), 589, 99–106.
  • [15] Obhan C.B., Garimella S.: A comparative analysis of studies on heat transfer and fluid flow in microchannels. Microscale Thermophys. 5(2001), 4, 293–311.
  • [16] Shin J.S., Kim M.H.: An experimental study of condensation heat transfer inside a mini-channel with a new measurement technique. Int. J. Multiphase Flow 30(2004), 3, 311–325.
  • [17] Silver L.: Gas cooling with aqueous condensation. Trans. Inst. Chem. Eng. 25(1947), 30–42.
  • [18] Thome J.R.: Condensation in plain horizontal tubes: Recent advances in modeling of the transfer to pure fluids and mixture. J. Braz. Soc. Mech. Sci. Eng., 27(2005), 1, 23–30.
  • [19] Zhang H.-Y., Li J.-M., Liu N., Wang B.-X.: Experimental investigation of condensation heat transfer and pressure drop of R22, R410 and R407C in mini-tubes. Int. J. Heat Mass Trans. 55(2012), 13-14, 3522–3532.
  • [20] Mikielewicz D., Andrzejczyk R., Jakubowska B., Mikielewicz J.: Analytical model with non-adiabatic effects for pressure drop and heat transfer during boiling and condensation flows in conventional channels and minichannels. Heat Transfer Eng. 37(2016), 13-14, 1158–1171.
Uwagi
EN
This work was sponsored by the State Committee for Scientific Research, Grant No. N N 512 456 740
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-0db6ea58-8413-4edf-ad9e-73189c768158
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