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http://dx.doi.org/10.6108/KSPE.2017.21.4.089

Improvement of a Flow Coefficient for the Recirculation Chill-down Flow in a Main Oxidizer Shut-off Valve  

Hong, Moongeun (Launcher Propulsion Control Team, Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.21, no.4, 2017 , pp. 89-95 More about this Journal
Abstract
The improvement of a flow coefficient for the recirculation chill-down flow in a main oxidizer shut-off valve has been presented. The flow coefficient, which is mainly affected by the recirculation outlet port size and the configuration inside the valve, has been predicted with measured flow coefficient values. The comparison of experimentally measured flow coefficient with the predicted value shows the effect of valve inside configuration on the flow coefficient. Consequently, the flow coefficient is twice the previous value and about 75% of the pressure loss assigned to the main oxidizer shut-off valve can be used for additional pressure losses for other components in the recirculation chill-down system of a launch vehicle.
Keywords
Main Oxidizer Shut-off Valve; Recirculation Chill-down System; Flow Coefficient; Liquid Rocket Engine;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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