Experimental investigations into the impact of the void fraction on the condensation characteristics of R134a refrigerant in minichannels under conditions of periodic instability KUCZYŃSKI, Waldemar. Politechnika Koszalińska - Wydział Mechaniczny, Katedra Techniki Cieplnej i Chłodnictwa 1999 - creator CHARUN, Henryk. Politechnika Koszalińska - Wydział Mechaniczny, Katedra Techniki Cieplnej i Chłodnictwa 1996 - text pl 2011 monographic eng
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 This paper present the results of experimental investigations of condensation of R134a refrigerant in pipe minichannels with internal diameters 0.64, 0 .90, 1.40, 1.44, 1.92 and 3.30 mm subject to periodic pressure instabilities. It was established that as in conventional channels, the displacement velocity of the pressure instabilities distinctly depends on the frequency of their hydrodynamic generation. The form ofthis relationship depends on the internal diameter of the minichannels and on the method of calculating the void fraction. specialized Waldemar Kuczyński, Henryk Charun. Dane z autopsji. Condensation Periodic instabilities Void fraction Minichannels 621.5 Archives of Thermodynamics. - 2011,Vol. 32, nr 2, s. 21-37 140411 20180423105217.0 5045