Development of a Method and Means for Transporting High-Purity Liquid Hydrogen

Resumo

Preservation of the purity of liquid hydrogen (H₂ ), which is used to fuel electrochemical generators of spacecraft power supply systems, during storage and transportation in model ZhVTs-100M railroad tank cars is studied. The quality of liquid H₂ at various technological stages of transportation from the railroad tank-car filling plant to the consumer is analyzed. Experimental results are compared with the calculated stepwise increase of impurity N₂ and O₂ concentrations in the liquid H₂. The methodology for calculating the purity of liquid H₂ during transportation is clarified based on the assessment. Tanks with improved thermal insulation are proposed for maintaining its quality.