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A study on the characteristic of fuel shutoff valve for 75 $ton_f$ combustion chamber  

Lee, Joong-Youp (한국항공우주연구원 발사체미래기술팀)
Lee, Soo-Yong (한국항공우주연구원 발사체미래기술팀)
Publication Information
Aerospace Engineering and Technology / v.11, no.1, 2012 , pp. 84-90 More about this Journal
Abstract
Fuel shutoff valve of a combustion chamber controls propellant mass flowrate of a rocket engine, by using pilot pressure and spring force. The developing fuel shutoff valve can be self sustained even though pilot pressure is removed in an actuator. Therefore, it is necessary to analyze the characteristics of the forces with respect to the opening and closing of the valve in order to evaluate its performance. In light of this, the valve has been designed to adjust the control pressure for the opening of the poppet and to determine the working fluid pressure at which the valve starts to close. This paper also has been predicted flow coefficient of the valve by Fluent(ver. 12.0) CFD analysis. Various results from the prediction and the analysis have been compared with experiments.
Keywords
Combustion chamber fuel valve; Self Sustained; Force Balance; Inherent flow coefficient;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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