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Operation regimes and heat transfer coefficients in sodium ...
Comparison between measured heat transfer coefficients and correlations from the literature ... Thus, for the fin and low performance GB regimes, the correlation for the heat transfer coefficient in the condenser has the ... C.A. BusseTheory of the ultimate heat transfer limit of cylindrical heat pipes. International Journal of Heat Mass ......
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 ...
Establishment of the falling film evaporation model and ...
The heat transfer correlation can be used to calculate mass transfer and confirm that the performances of heat transfer and mass transfer are almost in the same order of magnitude. Whitman [ 8 ] proposed the two-film theory, but it did not consider the mass transfer effect, and the phase interface is not strictly thermodynamic equilibrium....
 Heat and Mass Correlations - stwing @ upenn
JRB, ASR MEAM333 - Convection Correlations 3.8 Impinging Jets Heat and mass transfer is measured against the uid properties at the nozzle exit q00= h(T s T e) The Reynolds and Nusselt numbers are measured using the hydraulic diameter of the nozzle D
Investigation of empirical correlations on the ...
The heat transfer characteristics of R134a during downward condensation are investigated experimentally and numerically. ... A dimensionless correlation for heat transfer in forced convection condensation, Proceedings of the Sixth ... A general correlation for heat transfer during film condensation inside pipes, Int. J. of Heat and Mass Tr., 22 ......
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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