Horizontal flow boiling of R22, R134a and their mixtures with oil in smooth and enhanced tubes

• Autorzy: Cieśliński J. , Targański W.
• Języki publikacji: EN

Abstrakty

EN

The experimental stand and procedure for flow boiling investigations are described. Experimental data for pure R 22, R134a and their mixtures with oil in two smooth tubes and two enhanced tubes are also presented. The performance benefits of the micro-fin tube and corrugated tube are quantified and discussed. During tests inlet vapour quality was set 0[plus-minus]0,05 and outlet quality 0,7[plus-mines]0,01. Mass flux density varied from about 250 to 500 kg/m[^2]s. The experiments have been conducted for average saturation temperature 0[degrees]C. The ability of selected models to predict the boiling heat transfer coefficient is evaluated by comparison with the experimental data obtained in smooth tubes for pure R 22 and R134a.

Słowa kluczowe

EN

enhanced surface; flow boiling; refrigerant; refrigerant/oil mixture

PL

czynnik chłodniczy; mikstury chłodzące i olejowe; wrzenie w przepływie; wzmocniona powierzchnia

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2007
• Tom: Vol. 28, no. 2
• Strony: 19--40
• Opis fizyczny: Bibliogr. 37 poz.,Rys., wykr., wz., tab.

Twórcy

autor

Cieśliński J.

autor

Targański W.

• Prof., budowa i eksploatacja maszyn - termodynamika i wymiana ciepła. Prac. Politech. Gdańskiej.

Bibliografia

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