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http://dx.doi.org/10.20910/JASE.2020.14.5.26

Construction of High-Pressure Pressurized Liquid Nitrogen Supply Facilities  

Shin, Minkyu (Department of Aerospace Engineering, Chungnam National University)
Oh, Jeonghwa (Department of Aerospace Engineering, Chungnam National University)
Kim, Seokwon (Department of Aerospace Engineering, Chungnam National University)
Ko, Youngsung (Department of Aerospace Engineering, Chungnam National University)
Chung, Yonggahp (Launch Propulsion Control Team, Korea Aerospace Research Institute)
Publication Information
Journal of Aerospace System Engineering / v.14, no.5, 2020 , pp. 26-32 More about this Journal
Abstract
In this study, a facility was constructed to supply liquid nitrogen to simulate combustion instability in a liquid rocket combustor. The pressurization and supply performances were predicted and verified through different experiments. The liquid nitrogen supply system was composed of a pressurized supply system, and a dome regulator was used to adjust the pressure of the pressurant. A cavitation venturi was used to control the mass flow rate of liquid nitrogen. The condition of liquid nitrogen supply was a mass flow rate of 2.55 kg/s and the venturi inlet pressure was above 100 bar. Based on the initial experiment, it was observed that the predicted amount of the pressurant was not sufficiently supplied and the target pressure was not supplied due to a drop in tank pressure. Through the modification of the established facilities, the target mass flow rate was successfully supplied and the cryogenic liquid nitrogen supply facility was verified.
Keywords
Liquid Rocket Engine; Cryogenic Propellant; Liquid Nitrogen; Pressurized System; Pressure Loss;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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