Thermal Analysis of Compressible Gaseous Nitrogen Flow of X-38 Pressure Control System for First Mission Phase 2001-01-2433
A SINDA/FLUINT model was developed for performing the thermal analysis of the compressible gaseous nitrogen (GN2) flow of X-38 pressure control system (PCS). The purpose of this analysis is to predict the thermal performance of X-38 PCS for the first mission phase, and to ensure that the GN2 pressure in tank stays above 1000 psi and the GN2 temperature in tank stays above −65°F during a real mission phase. The model simulations of the X-38 PCS have been conducted with the flowrates of the first mission phase for different ambient and GN2 temperatures with/without heating the GN2 tank wall. The predicted results show that the GN2 pressures and temperatures fulfill the requirements and limitations of the X-38 pressure control system without heating the GN2 tank wall. The electrical heaters on the GN2 tank exterior may be eliminated.
Citation: Zhang, Y., Andish, K., Keener, J., and Dingell, C., "Thermal Analysis of Compressible Gaseous Nitrogen Flow of X-38 Pressure Control System for First Mission Phase," SAE Technical Paper 2001-01-2433, 2001, https://doi.org/10.4271/2001-01-2433. Download Citation
Y. M. Zhang, K. K. Andish, J. F. Keener, C. W. Dingell
Lockheed Martin Space Operations
31st International Conference On Environmental Systems