TY  - GEN
AU  - KUCZYŃSKI,Waldemar, Politechnika Koszalińska - Wydział Mechaniczny
AU  - CHARUN,Henryk, Politechnika Koszalińska - Wydział Mechaniczny
TI  - Experimental investigations into the impact of the void fraction on the condensation characteristics of R134a refrigerant in minichannels under conditions of periodic instability
KW  - Condensation
KW  - Periodic instabilities
KW  - Void fraction
KW  - Minichannels
N1  - Dane z autopsji
N2  - 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
ER  -