Experimental verification of commonly used methods for a two-phase pressure drop evaluation in application to flows in minichannels

• Autorzy: Dutkowski, K.
• Języki publikacji: EN

Abstrakty

EN

The results of experimental investigations of pressure gradient in a two-phase adiabatic flow in tubular minichannels are presented. The air-water mixture was used as a working fluid. Eight stainless steel tubular minichannels with internal diameters d[w] = 1.05 - 2.30 mm and section length 300 mm were used. The investigations were conducted in the following parameter range: mass flow rate of water 0.65 - 59 kg/h, mass flow rate of air 0.011 - 0.72 kg/h, mass fraction of air in the two-phase mixture x = 0.0003 - 0.22, and total mass flux (w[rho]) = 139 - 8582 kg/(m[^2] s). It was found, on the basis of the experimental investigations, that commonly used methods of evaluation of pressure drop in a two-phase flow provided poor results. It is therefore necessary to make some modifications to suit the description of two-phase flow in minichannels.

Słowa kluczowe

PL

badania eksperymentalne; minikanał; opór przepływu; tarciowy spadek ciśnienia

EN

experimental investigation; frictional pressure drop; minichannel

• Czasopismo: Archives of Thermodynamics
• Rocznik: 2009
• Tom: Vol. 30, no. 1
• Strony: 27-44
• Opis fizyczny: Bibliogr. 25 poz.,Rys., tab., wykr., wz.

Twórcy

autor

Dutkowski, K.

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

Bibliografia

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