Modeling the phenomena accompanying the condensation of environmentally friendly refrigerants in mini-channels

• Autorzy: Kuczyński Waldemar

Identyfikatory

DOI

10.24425/ather.2023.145880

• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of an experimental study and mathematical modeling of the effect of dynamic instabilities on the condensation phase transformation of the refrigerants homogeneous R134a and its replacement in the form of isomers R1234yf and R1234ze and R404A or R507 and R448A in pipe mini-channels. In the case of homogeneous chlorofluorocarbons (CFCs), it is the 1234 isomers that are envisioned as substitutes for the withdrawn ones with high ozone depletion potential and global warming potential. For zeotropic and azeotropic mixtures, for example, these are R507 or R448A. The paper presents a dimensional analysis procedure based on the Buckingham Π theorem to develop a regression velocity model of pressure dynamic instabilities. The experimental part of the work was carried out with the use of tubular mini-channels with internal diameter 1.40–3.3 mm.

Słowa kluczowe

EN

refrigerants; condensation; mini-channels

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2023
• Tom: Vol. 44, no 1
• Strony: 121--137
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Kuczyński Waldemar

• Koszalin University of Technology, Faculty of Mechanical Engineering, Department of Power Engineering, Racławicka 15-17, 75-625 Koszalin, Poland

Bibliografia

• [1] Benzi R., Sutera A., Vulpiani A.: The mechanism of stochastic resonance. J. Phys. A: Math. Gen. 14(1981), 1453–l457.
• [2] Bergles A.E., Kandlikar S.G.: On the nature of critical heat flux in microchannels. J. Heat Transfer-T ASME 127(2005), 1, 101–107.
• [3] Daisuke J., Mikajiri N., Nobunaga M., Inoue N.: Condensation heat transfer of pure refrigerants R1234yf and R32 inside multiple circular minichannels. Int. J. Heat Mass Tran. 195(2022), 123146.
• [4] Darcy D.F.: On acoustic propagation and critical mass flux in two-phase flow. J. Heat Transfer-T ASME 93(1971), 4, 413–421.
• [5] Fauve S., Heslot F.: Stochastic resonance in a bistable system. Phys. Lett. A 97(1983), 1–2, 5–7.
• [6] Gammaitoni L., Hänggi P., Jung P., Marchesoni F.: Stochastic resonance. Rev. Mod. Phys. 70(1998), 1, 223–287.
• [7] Ghiaasiaan S.M.: Two-Phase Flow, Boiling, and Condensation in Conventional and Miniature Systems. Cambridge Univ. Press, 2008.
• [8] Gmurman W.J.: Probability and Mathematical Statistics. WNT, Warszawa 1975.
• [9] Gubaidullin D.A., Gubaidullina D.D., Fedorov Y.V.: About the equilibrium speed of sound in a liquid with gas-vapor bubbles. J. Phys.: Conf. Ser. 669(2016), 1, 012011.doi: 10.1088/1742-6596/669/1/012011
• [10] Hanamura K., Kaviany M.: Propagation of condensation front in steam injection into dry porous media. Int. J. Heat Mass Tran. 38(1995), 8, 1377–1386.
• [11] Helmholtz H.: Verhandlungen des Naturhistorisch-medizinischen Vereins zu Heidelberg, III(1863), 16.
• [12] Kuczyński W., Charun H., Piątkowski P., Bałasz B., Chliszcz K.: A regressive model for dynamic impulsive instabilities during the condensation of R134a, R1234ze(E) and R1234yf refrigerants. Int. J. Heat Mass Tran. 169(2021), 120963.
• [13] Kuczyński W., Charun H., Bohdal T.: Impact of periodically generated hydrodynamic disturbances on the condensation efficiency of R134a refrigerant in pipe minichannels. Exp. Heat Transfer 26(2013), 1, 64–84.
• [14] Kuczyński W., Charun H.: Modeling of a two-phase region length of the condensation of R134a and R404A refrigerants in pipe minichannels with periodic hydrodynamic instabilities. Heat Transfer Eng. 35(2014), 9, 850–862.
• [15] Kuo C.-J., Peles Y.: Flow boiling instabilities in microchannels and means for mitigation by reentrant cavities. J. Heat Transfer-T. ASME 130(2008), 7, 072402. (Also Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, 130(2008)).
• [16] Longo G., Mancin S., Righetti G., Zilio C.: Saturated vapour condensation of R134a inside a 4 mm ID horizontal smooth tube: Comparison with the low GWP substitutes R152a, R1234yf and R1234ze(E). Int. J. Heat Mass Tran. 133(2019), 461–473.
• [17] López-Belchí A.: Assessment of a minichannel condenser at high ambient temperatures based on experimental measurements working with R134a, R513A and R1234yf. Appl. Therm. Eng. 155(2019), 341–353.
• [18] Mainil A.K., Sakamoto N., Ubudiyah H., Miyara A., Kariya K.: Experimental study and general correlation for frictional pressure drop of two-phase flow inside microfin tubes. Int. J. Refrig. 144(2022), 342–353.
• [19] Moody F.J.: A pressure of pulse model for two-phase critical flow and sonic velocity. J. Heat Transfer-T. ASME 91(1969), 3, 371–384.
• [20] Pham Q.V., Oh J.-T.: Condensation heat transfer characteristics of R1234yf inside multiport minichannel tube. Int. J. Heat Mass Tran. 170(2021), 121029.
• [21] Shin J.S., Kim M.H.: An experimental study of condensation heat transfer inside a minichannel with a new measurement technique. Int. J. Multiphas. Flow 30(2004),311–325.
• [22] Teng R., Cheng P., Zhao T.S.: Instability of condensate film and capillary blocking in small-diameter-thermosyphon condensers. Int. J. Heat Mass Tran. 42(1999), 16, 3071–3083.
• [23] Wang L., Jiao P., Dang Ch., Hihara E., Dai B.: Condensation heat and mass transfer characteristics of low GWP zeotropic refrigerant mixture R1234yf/R32 inside a horizontal smooth tube: An experimental study and non-equilibrium film model development. Int. J. Therm. Sci. 170(2021), 107090.
• [24] Weisman J., Ake T., Knott R.: Two-phase pressure drop across abrupt area changes in oscillatory flow. Nucl. Sci. Eng. 61(1976), 3, 297–309.
• [25] Welander P.: On the oscillatory instability of a differentially heated loop. J. Fluid. Mech. 29(1967), 1, 17–30.
• [26] Yuncu H., Yildirim O.T., Kakac S.: Two-phase flow instabilities in a horizontal single boiling channel. J. Appl. Sci. Res. 48(1991), 83–104.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).