Experimental study on the high-pressure gas flow performance of orifice plates used in the rocket propellant pressurization system
- Paper number
IAC-13,D2,P,1.p1,x17867
- Author
Mr. Wang Huilong, Beijing Aerospace Institute of Metrology & Measurement Technology, China
- Coauthor
Mr. Fengju Sun, Beijing Aerospace Institute of Metrology & Measurement Technology, China
- Coauthor
Mr. Cheng Xiang, Beijing Institute of Astronautical Systems Engineering, China
- Coauthor
Prof. Qiang Li, Beijing Aerospace Institute of Metrology & Measurement Technology, China
- Coauthor
Mr. Luo Baoying, Beijing Institute of Astronautical Systems Engineering, China
- Year
2013
- Abstract
In order to improve the reliability of rockets，owing to the simple structure and having no moving parts，more and more orifice plates with steady performance are adopted to replace the traditional gas regulators in the propellant pressurization system. Orifice plates are used to keep the pressure in the rocket propellant tank stable and appropriate by restricting and controlling the flow discharged from the high-pressure gas-storage tank，in which case，the propellant is properly transmitted to the rocket engine. That is exactly the effect of the rocket propellant pressurization system. It is undoubtedly that the flow past a certain orifice plate has to be pre-estimated. However，it has been found that ，different from the normal ones，orifice plates’ inlet pressure here is so extremely high，sometimes up to 30MPa，that they do not show the regular theoretic flow performance any more. Based on that background ，in this paper，the authors have developed one kind of high-pressure gas flow measurement system，with which we can automatically simulate variable-pressure working modes ranged from 2MPa to 30MPa by operating on the remote console. In this system，Coriolis mass flow transducers are adopted to measure the flowrate past a variety of sized orifice plates under those working modes and respective discharge coefficient is consequently calculated，from which some exclusive practical conclusions concerning the high-pressure gas flow performance of orifice plates are derived.
- Abstract document
- Manuscript document
IAC-13,D2,P,1.p1,x17867.pdf (🔒 authorized access only).
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