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http://dx.doi.org/10.6108/KSPE.2015.19.5.062

Simulator Development for Startup Analysis of Staged Combustion Cycle Engine Powerpack  

Lee, Suji (Aerospace System Engineering, University of Science & Technology)
Moon, Insang (Rocket Engine Team, Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.19, no.5, 2015 , pp. 62-70 More about this Journal
Abstract
A liquid rocket engine system can cause rapid pressure and temperature variations during the startup period. Thus the startup analysis is required to reduce time and expense for successful development of liquid rocket engine through the startup prediction. In this study, a startup analysis simulator is developed for a staged combustion cycle engine powerpack. This simulator calculates propellant flow rates using pressure and flow rate balances. In addition, a rotational speed of turbopump is obtained as a function of time by mathematical modeling. A startup analysis result shows that the time to reach a steady-state and a rotational speed at the steady-state are 1.3 sec and 27,500 rpm, respectively. Moreover it can indicate proper startup sequences for stable operation.
Keywords
Staged Combustion Cycle Engine Powerpack; Startup Analysis; Pressure and Flow Rate Balances; Mathematical Modeling;
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