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http://dx.doi.org/10.6108/KSPE.2018.22.4.108

Investigation of Chill Down Characteristics of Liquid Oxygen Feeding System in 75 Tonf-class Liquid Rocket Engine Firing Test  

Seo, Daeban (Engine Test and Evaluation Team, Korea Aerospace Research Institute)
Cho, Namkyung (Engine Test and Evaluation Team, Korea Aerospace Research Institute)
Han, Yeoungmin (Engine Test and Evaluation Team, Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.22, no.4, 2018 , pp. 108-116 More about this Journal
Abstract
A firing test of the 75 tonf-class liquid rocket engine to be used as the first and second stage engines of the KSLV-II was carried out at the rocket engine test facility(RETF). Since this engine uses liquid oxygen as the oxidizer, which is a cryogenic fluid, it is essential that the chill down of the supply pipe line and engine proceed for the firing test; thus, the given inlet requirements must be met. Moreover, it is important to understand the chill down characteristics of the facility and the engine and the amount of liquid oxygen consumed in the chill down process for efficient test operation in the future. In this paper, chill down characteristics of the supply pipe and the engine were evaluated through the investigation of the chill down process of the 75 tonf-class liquid rocket engine at each stage before and after run tank pressurization. In addition, the amount of liquid oxygen consumed was also evaluated.
Keywords
75 Tonf Liquid Rocket Engine; Firing Test; LOx; Chill Down Characteristics;
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  • Reference
1 Kim, S. et al., "Development Test of 75 tonf Engine System for KSLV-II," KSPE Fall Conference, Jeongsun, Korea, pp. 888-891, Dec. 2016.
2 Kim, J., Choi, C., Jung, E., Jeon, S. and Hong, S., "Development Status of a Turbopump for Korea Space Launch Vehicle (KSLV-II)," KSAS Fall Conference, Jeju, Korea, pp. 254-263, Nov. 2012.
3 Seo, D. et al., "Chill down Characteristisc of 75 tonf-class Engine 1G for KSLV-II," KSPE Fall Conference, Jeongsun, Korea, pp. 930-933, Dec. 2016.
4 Cho, N., Seo, D., Yu, B., Kim, S. and Han, Y., "Investigation of chilling Procedure of LOX Supply System of Liquid Rocket Engine," KSPE Fall Conference, Jungsun, Korea, pp. 863-867, Dec. 2016.
5 Liebenberg, L. and Meyer J.P., "The Characterization of flow regimes with power spectral density distributions of pressure fluctuations during condensation in smooth and micro-fin tubes," Experimental Thermal and Fluid Science, Vol. 31, No. 1, pp. 127-140, 2006.   DOI
6 Dr. Jacob and N. Chung, "Two Phase Flow Characteristics and Boiling Heat Transfer Rates During Cryogenic Chilldown and Transport in Reduced Gravity," NASA CR-2008-215440/PART3, 2008.