Performance assessment of an horizontal air / water separator deflector with low volume fraction of air
Résumé
The purpose of the present work is to study the performance of a separator deflector for specific applications under severe constraints of size and low costs. This device separates air and water in an horizontal flow. The efficiency of the separator is defined as the ratio of the mass flow rate of air separated from the liquid and the mass flow rate of air at inlet. The effects of the tilt angle of the deflector and of the absolute inlet pressure are compared for various mixture velocities and air volumetric concentrations. The efficiency strongly depends on the horizontal two-phase flow regime and on the inlet pressure. There exists a unique optimal tilt angle of the deflector for all flow-regimes. The experiments are supplemented with numerical simulations that allow to better understand the flow patterns in the separator. Through this analysis, it is demonstrated that two parameters are needed to fully characterize the performances of the separator. Moreover, it is shown that there exists only one design point where the separator is very efficient and that it is very sensitive to small variations around this design point.
Origine : Fichiers produits par l'(les) auteur(s)
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