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Review of Cryogenic Propellant Densification Technology  

Cho Namkyung (한국항공우주연구원 추진제어그룹)
Han Sangyeop (한국항공우주연구원 추진제어그룹)
Kim Youngmog (한국항공우주연구원 추진제어그룹)
Jeong Sangkwon (한국과학기술원 기계공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.9, no.3, 2005 , pp. 133-144 More about this Journal
Abstract
Enhancements to propellants provide an opportunity to either increase performance of an existing launch vehicle. One of the promising technologies is the use of densified cryogenic propellants such as liquid hydrogen and liquid oxygen. The main advantage of densified cryogenic propellants is the increase in propellant mass fraction. Increased propellant mass fraction means increased payload mass to orbit. This paper reviews the basic principles and current technology trends for cryogenic propellant densification technologies. Several promising densification methods are presented focused on liquid oxygen densification. Engine and vehicle performance analyses are also presented to quantify the potential performance benefits of densified propellants in an overall system. And suggestions of application scheme for satellite launch vehicle is made.
Keywords
Cryogenic Propellant; LOX; Densification; Recirculation; Sub-cooling; Heat exchanger; Propellant tank;
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