Propane pool boiling heat transfer on horizontal tube

• Autorzy: Vasiliev L. , Zhuravlyov A. , Khrolenok V. , Novikov M. , Rak A. , Mazyuk V.
• Konferencja: International Conference on Heat Transfer and Transport Phenomena in Multiphase Systems HEAT '99 (2; 18-22.05.1999; Kielce, Poland)
• Języki publikacji: EN

Abstrakty

EN

An experimental investigation of propane boiling heat transfer was done on single horizontal smooth tubes and tubes with porous coverings. Three modes of heat transfer were determined on evaporation surfaces with increasing heat flux: free convection, a transitional mode (the average vapor bubble population was negligible) and developed boiling. The existence of the region length depends on saturation pressure, the kind of evaporation surface, and the direction of heat flux change. On heat flux reduction, a strong heat-flux hysteresis phenomenon was observed: the picture regarding changes of heat transfer regimes the same, but boiling extended into the region which was occupied by free convection. In the wide range of saturation pressures and heat fluxes, the intensity of heat transfer on the samples with porous coatings is high than that on the smooth surface samples. The research carried out showed that an application of metal porous covering with electric arc gas-thermal spraying allows one to increase significantly (3-5 times as high in the region of low heat loads, q < 8 kW/m², and 2.5-3 times in the region of high heat fluxes, q > 8 kW/m²) the heat transfer intensity for propane boiling on horizontal tubes.

Słowa kluczowe

EN

boiling; boiling heat transfer; propane; propane pool boiling; heat transfer intensification; porous coated surface

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Zeszyty Naukowe Politechniki Świętokrzyskiej. Mechanika
• Rocznik: 1999
• Tom: Z. 67
• Strony: 339--347
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Vasiliev L.

• A.V. Luikov Heat and Mass Transfer Institute, Porous Media Laboratory, P.Brovka str. 15, 220072 Minsk, Belarus

autor

Zhuravlyov A.

• A.V. Luikov Heat and Mass Transfer Institute, Porous Media Laboratory, P.Brovka str. 15, 220072 Minsk, Belarus

autor

Khrolenok V.

• Scientific Research, Design and Technological Institute of Welding and Protective Coatings, Platonov str. 12-A, 220600 Minsk, Belarus

autor

Novikov M.

• A.V. Luikov Heat and Mass Transfer Institute, Porous Media Laboratory, P.Brovka str. 15, 220072 Minsk, Belarus

autor

Rak A.

• Belorussian State Research and Production Powder Metallurgy Concern, Platonov str. 41, 220600 Minsk, Belarus

autor

Mazyuk V.

• Belorussian State Research and Production Powder Metallurgy Concern, Platonov str. 41, 220600 Minsk, Belarus

Uwagi

EN

The authors acknowledge financial suuport by the Belorussian Republican Foundation for Fundamental Research.