Experimental studies of unsteady processes of cryogenic liquid evaporation in rocket tank model

Abstract

The program and the methodology of the experiment and the results of the experiment have been developed. The experimental bench and metrological support have been created, liquid nitrogen (LN) has been considered as a model liquid. A database of heat and mass exchange process parameters (pressure, temperature) under the modes of tank inflation with helium gas up to 2 atm., given external thermal loading, pressure relief after reaching 4 atm. up to 1 atm. The technique of processing the results of pressure and temperature measurements with the assumptions and limitations is given.

Keywords

• liquid nitrogen
• conductive heating
• evaporation
• boiling
• volumetric boiling
• pressurization
• helium gas
• mass evaporation rate