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Thermal Analysis of Prelaunch Transients in Cryogenic Oxidizer Tank of Liquid Propulsion Rocket  

Kim, Kyoung-Hoon (금오공과대학교 기계공학부)
Ko, Hyung-Jong (금오공과대학교 기계공학부)
Kim, Kyoung-Jin (금오공과대학교 기계공학부)
Cho, Kie-Joo (한국항공우주연구원 추진기관체계팀)
Oh, Seung-Hyub (한국항공우주연구원 추진기관체계팀)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.12, no.4, 2008 , pp. 33-41 More about this Journal
Abstract
The prelaunch thermal transients in the cryogenic oxidizer tank of liquid propulsion rocket subjected to uniform heat flux from outside are numerically analyzed through thermodynamic equations and heat and mass transfer relations. The prelaunch stage is assumed to be composed of five idealized sub-stages including pressurization process by helium gas injection. The Peng-Robinson equation of state is utilized in the lumped analysis of ullage gas. The liquid region is divided into a number of horizontal layers of uniform properties to account for the thermal stratification. The computational result for the typical case shows that the temperature rise of liquid oxidizer is less than 1K and the adsorbed helium into the liquid is approximately 10g.
Keywords
Liquid Propulsion Rocket; Cryogenic Oxidizer Tank; Pressurization; Transient Thermal Analysis; KSLV-I;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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