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Condensation heat transfer in smooth inclined tubes for ...
Abstract This paper presents the effects of saturation temperature and inclination angle on convective heat transfer during condensation of R134a in an inclined smooth tube of inner diameter of 8.38 mm. Experiments were conducted for inclination angles ranging from −90° (vertical downwards) to +90° (vertical upwards) for mass fluxes between 100 kg/m 2 s and 400 kg/m 2 s and mean vapour ...
Prediction of Two-Phase Heat Transfer Coefficients in a ...
Prediction of Two-Phase Heat Transfer Coefficients in a Horizontal Pipe for Different Inclined Positions With Artificial Neural Networks ... Comparison of 20 Two-Phase Heat Transfer Correlations With Seven Sets of Experimental Data, Including Flow Pattern and Tube Inclination Effects ... (IEC) System: Comparison of Artificial Neural Networks ......
active [Virtual International Research Institute of Two ...
This application gives terminal velocities of Taylor bubbles in inclined pipes. The rise velocities are calculated using the Lizarraga-Garcia correlation, which is a combination of the Viana correlation for bubbles in vertical pipes and an inclination effect multiplier developed using level-set simulations.
Effect of Mass Flow Rate on the Convective Heat Transfer ...
The heat transfer coefficient decreases by ˜10% with a threefold increase in the mass flow rate under these conditions, based on the commonly used Dittus-Boelter correlation for estimation of the heat transfer coefficient. On the other hand, an increase in the heat transfer coefficient is observed if the area is maintained constant....
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