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Transient Analysis of Pressurization and Pneumatic Subsystems of the X-34 Main Propulsion System

Author:
Kennedy, Jim W.
Published:
[2000].
Physical Description:
1 electronic document
Additional Creators:
Hedayat, A., Knight, K. C., and Chamption, R. H., Jr.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary:
Transient models for the pressurization, vent/relief, and pneumatic subsystems of the X-34 Main Propulsion System are presented and simulation of their operation within prescribed requirements are provided. First, using ROCket Engine Transient Simulation (ROCETS) program, pressurization subsystem operation was simulated and helium requirements and the ullage thermodynamic condition within each propellant tank were calculated. Then, Overpressurization scenarios of propellant tanks and the response of vent/relief valves were evaluated using ROCETS simulation of simultaneous operation of the pressurization and vent/relief subsystems by incorporating the valves data into the model. Finally, the ROCETS simulation of in-flight operation of pneumatic subsystem predicted the overall helium consumption, Inter-Propellant Seal (IPS) purge flowrate and thermodynamic conditions, and Spin Start power.
Other Subject(s):
Collection:
NASA Technical Reports Server (NTRS) Collection.
Note:
Document ID: 20000093952.
36th Joint Propulsion Conference; 17-19 Jul. 2000; Huntsville, AL; United States.
Terms of Use and Reproduction:
No Copyright.
View MARC record | catkey: 15969963