Off-normal Situations Related to the Operation of the Electron-VM Oxygen Generation System aboard the International Space Station 2005-01-2803
The Electron-VM Oxygen Generation System (OGS) is a main source of oxygen for crew breathing on the International Space Station (ISS) and the result of updating the Electron-V OGS that has been in successful operation for 17 years on Mir Space Station. The successful accomplishment of a manned flight program primarily has resulted in the stable operation of the system.
The paper deals with analysis of off-normal situations related to the operation of the Electron-VM on board ISS. The system switching-off analysis based on the telemetry information processing and the results of the additional tests conducted under flight and ground conditions is performed.
A principal cause of system switching-offs is a reduction in the pressure built by the circulating pumps due to ingress of gas bubbles into the suction pipeline. The results of the Electron-VM OGS switching-off analysis and the practical recommendations regarding its prevention are reviewed.
The serviceability restoration technique for the Electron-VM's key unit (the liquid unit) has been developed and tested under manned flight conditions. The liquid unit has been restored under flight conditions and being integrated in the Electron-VM is currently operated successfully on the ISS.
Citation: Kurmazenko, E., Samsonov, N., Gavrilov, L., Farafonov, N. et al., "Off-normal Situations Related to the Operation of the Electron-VM Oxygen Generation System aboard the International Space Station," SAE Technical Paper 2005-01-2803, 2005, https://doi.org/10.4271/2005-01-2803. Download Citation
Author(s):
E. A. Kurmazenko, N. M. Samsonov, L. I. Gavrilov, N. S. Farafonov, Ju. E. Belavencev, N. V. Pavlova, V. Ju. Proshkin, S. Ju. Romanov, A. G. Geleznyakov, A. M. Ryabkin, G. A. Lyubimov, O. V. Kirushin
