Condensation of refrigerant R404A under external disturbances

• Autorzy: Bohdal T. , Łomiak M.
• Języki publikacji: EN

Abstrakty

EN

The paper describes results of experimental investigations of condensation of the refrigerant R404A in the flow through a coiled tube under conditions of external disturbances that occur in refrigeration units. The development and decay of condensation is induced by impulse changes of parameters of the two-phase system, such as pressure and mass flux density in the tubular channel. It is confirmed that the two-phase systems exhibit wave properties and that the disturbances propagate with finite velocities. Experiment-based correlations are obtained to describe the propagation of disturbances during development and decay of condensation of the refrigeration medium in the tubular channel.

Słowa kluczowe

EN

condensation; external disturbances; heat transfer; instabilities; vave phenomena

PL

niestabilność; skraplanie; wymiana ciepła; zakłócenia zewnętrzne; zjawiska falowe

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2009
• Tom: Vol. 30, no. 2
• Strony: 37--57
• Opis fizyczny: Bibliogr. 31 poz.,Rys., wz. wykr.,

Twórcy

autor

Bohdal T.

autor

Łomiak M.

• Koszalin University of Technology, Chair of Heat and Refrigeration Engineering, Racławicka 15-17, 75-620 Koszalin, Poland,

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