液体水素輸送船の補機に関する研究

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This report discusses technical problems about auxiliary machineries handling boil-off hydrogen gas burned in a main engine for liquid hydrogen carriers.The experimental work was carried out on three types of non-contacting shaft seals for a boil-off gas compressor and a liquid hydrogen pump. The following results were obtained.1.Spiral groove gas seals show satisfactory performances at 0〜500s^<-1> in rotation for hydrogen and nitrogen gases at -140℃.2.Spiral groove liquid seals tested show good results in kerosene at room temperature and 0〜500s^<-1> and in liquid nitrogen at 0〜100s^<-1>.3.Magnetic fluid seals used for a secondary seal show sufficient performances at low temperature and 0〜500s^<-1>.In conclusion, a closed type gas compressor and a closed type pump with externally pressurized gas bearings were discussed.
独立行政法人海上技術安全研究所の論文
1982-03-30