STUDY OF SECURITY SYSTEMS OF OXYGEN-HYDROGEN PROPULSION PLANT TEST ON THE STAND

Adopted technology allows engineers to test of propulsion plant (PP) on the stand with filling the fuel tank up to 2700 kg of hydrogen with implementation of special security measures and the use of systems emergency safety (SES), covering up to 60% of emergency situations. The paper considers the additional security measures ensuring the test for the rocket propulsion plant upper stages with increased doses of refueling (up to 7000 kg), based on the principle of preserving the hierarchical construction of test programs. A key factor to improve the efficiency of systems alert fire and explosion, SES and coefficient enrollment of emergency situations (0.8–0.9) is the research on systems of the earlier hydrogen leak detection and the use of inhibitors with nitrogen-deterrent to prevent an explosion of hydrogen and air (or oxygen) mixtures. The paper demonstrates the research results of the earlier hydrogen leak detection systems and implementation of plants for comparative testing for sensors for hydrogen dangerous concentration monitoring.