Experimental research of pressure-volume-temperature mass gauging method using instantaneous analysis under cryogenic homogeneous condition 순간 해석 기법을 이용한 PVT 잔량 측정법의 극저온 균일 온도 조건에서의 실험적 연구

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In the extreme conditions of launch vehicle in a space, such as cryogenic temperature and low-gravity environment, the mass gauging of remaining propellants becomes a difficult problem. Pressure-volume -temperature (PVT) method is one of the attractive mass gauging methods under low-gravity due to its simplicity and reliability. PVT gauging experiment with various mass flow rates of helium injection is carried out with the experimental apparatus creating cryogenic homogeneous condition as the condition of low-gravity. Experimental results are analyzed by a novel PVT gauging analysis method which considers all instantaneous changes of pressure and temperature in the ullage volume with small time intervals. It is observed that the gauging error from the novel PVT gauging analysis is -0.11% with 2 slpm mass flow rate of helium injection.
Publisher
Korea Institute of Applied Superconductivity and Cryogenics
Issue Date
2012-03
Language
Korean
Citation

Journal of the Korea Institute of Applied Superconductivity and Cryogenics, v.14, no.1, pp.38 - 43

ISSN
1229-3008
URI
http://hdl.handle.net/10203/101633
Appears in Collection
ME-Journal Papers(저널논문)
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