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http://dx.doi.org/10.5139/JKSAS.2020.48.7.529

Propellant Consumption Estimation of Reaction Control System During Flight of KSLV-II  

Kang, Shin-jae (Korea Aerospace Research Institute)
Oh, Sang-gwan (Korea Aerospace Research Institute)
Yoon, Won-jae (Space Solutions)
Min, Byeong-joo (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.7, 2020 , pp. 529-536 More about this Journal
Abstract
Reaction Control System of the third stage of the Korean Space Launch Vehicle II conducts roll control and 3 axis control throughout third stage engine start, satellite separation, and collision and contamination avoidance maneuver. Reaction control system consumes its propellant in each thruster operation. Hence, loading of proper amount of the propellant is important for mission success. It is needed to have a rough estimation method of propellant consumption during the flight. In this paper, we developed a energy equation using pressure and temperature data which are acquired in the on-board reaction control system. We constructed a test system which is similar with the on-board reaction control system to verify the energy equation. Test results using deionized water were compared with estimated propellant consumption. We also conducted an error analysis of the energy equation. We also presented the propellant consumption result of a system level operation test.
Keywords
Reaction Control System; Propellant Consumption Estimation; Error Analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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