Numerical and experimental investigation on a new modified valve in a valve tray column

Asghar Alizadehdakhel, Masoud Rahimi, Ammar Abdulaziz Alsairafi
2009 Korean Journal of Chemical Engineering  
This paper reports experimental and computational fluid dynamics (CFD) modeling studies on the performance of three modified valves operating in a valve tray column. The original and modified valves including vnotched, warped and double-valve are tested experimentally. The experimental rig was a Perspex column having a single valve equipped with a fluctuating plate to measure the quality of gas distribution by using laser sensors. Two-stage nested designs were employed to show the repeatability
more » ... and consistency of the measurements. In the CFD modeling, the volume of fluid (VOF) method was used to model the gas-liquid two-phase flow inside the column. A good agreement was observed between experimental data and the CFD predictions. The results showed that the double-valve layout provides a better gas distribution, smaller bubbles with greater interface area and lower pressure drop in comparison with the original and the two other modified valves.
doi:10.1007/s11814-009-0081-2 fatcat:itpz42dkdjav5lrioodglfnumm