Journal
Scientific journal NRU ITMO. Series "Refrigeration and Air Conditioning"
UDK621.56
Issue:3 (16)
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Research flow regimes of two-phase refrigerant flow in horizontal pipes
Annotation
The results of experimental studies of flow regimes of two-phase flow of refrigerant R12, R22, R134a in a horizontal pipe inner diameter of 6 mm and 10 mm, with boiling points t0 = -20 ÷ +20˚C, the rate of circulation ω0 = 0,1 ÷ 0,5 m / s. There is generally poor coordination, which can be explained by the authors using the card mode supplies, not the true parameters, which under certain conditions is physically meaningless. The dependence of the boundaries of the flow regime of steam quality, circulation rate, the boiling point, the diameter of the pipe. A comparison of the experimental data with charts Baker (Charge) Hovli, Varma, Maydheyna, Van der Yagta. Found that only 40-50% of the received experimental data are in good agreement with the above diagrams. Studies in addition to the identification of modes also included the study of the true volume steam content by cutoffs.
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