KOCA, Aliihsan Mir Research and Development Inc, Turkey , GEMİCİ, Zafer Mir Research and Development Inc, Turkey

EVAPORATIVE HEAT TRANSFER AND PRESSURE DROP OF R410A AND R32 IN SMOOTH HORIZONTAL TUBE

41609

Flow boiling heat transfer of R410A and R32 inside a smooth horizontal tube whose hydraulic diameters are 5,6 and 7mm. The mass flux was varied from 100 to 400 kg m²s , heat flux from 5 to 15 kj m²h , as the saturation temperature were maintained at -30 °C and -40 °C. The effects of the imposed wall heat flux, mass flux, vapor quality on the evaporation heat transfer and pressure drop discussed as a function of vapor quality and tube length. The results from Matlab program are compared with experimental data.

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R410 , A R32 , heat transfer , pressure drop , horizontal tube

Sigma Journal Of Engineering and Natural Sciences

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