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Expulsion of Storable Propellants Utilizing a Volatile Liquid as the Pressurizing Medium
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English
Abstract
Volatile liquid pressurization provides an improved method of expelling storable propellants for spacecraft reaction control system engines by eliminating the requirement for a high-pressure storage and distribution capability. The Volatile Liquid System, which is particularly attractive if in-flight refueling is to be considered, utilizes the energy resulting from the phase change of a volatile liquid caused by a controlled heat input. Parameters to consider in volatile liquid selection and system design are presented. Typical test expulsion characteristics of subscale and flightweight systems are described.
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Citation
Eatough, R., "Expulsion of Storable Propellants Utilizing a Volatile Liquid as the Pressurizing Medium," SAE Technical Paper 670544, 1967, https://doi.org/10.4271/670544.Also In
References
- Giffoni S. F. “All Metal Volatile Liquid Positive Expulsion System.” Final Summary Report to NASA under Contract No.NAS9-1004 June 1964 No. ER-5980, TRW Electromechanical Division
- “Thermodynamic Properties of Freon 22.” E. I. DuPont De Nemours and Co., Freon Products Division Paper T-22A 1945
- Eatough R. G. “All Metal Volatile Liquid Positive Expulsion System.” Final Summary Report to NASA under Contract No. NAS9-4550, TRW Systems, Inc., No. 05019-6001-R000 June 1967