The safety provision during venting of gaseoushydrogen to atmosphere at the liquid propellant rocketengine test stand complex using LH2+LOX

Abstract

One of the problems of liquid propellant rocket engine stand development is theprovision of gaseous hydrogen venting from both liquid propellant rocket engine and standsystems to atmosphere while technological operations of cold and hot testing are carried out. Thefollowing matters are considered in the present paper: • •The matters of air penetration into the venting pipes and systems prior to and duringhydrogen venting; • •The analysis of application of the venting devices installed on venting pipes to providefire and explosion safety during hydrogen venting to atmosphere; • •The experience in operation use of the hydrogen systems of high thrust liquid rocketengine test stand complex during gaseous hydrogen venting to atmosphere.