The cryogenic transfer lines are critical components in the large cryogenic refrigeration equipment. Multi- layer insulation is used to reduce heat leak in the lines DTRM model,P1 model,ROSSELAND model and DO model were employed to simulate the temperature field of the LHe transfer line in the protection of vacuum environment. Comparison results show that result obtained by S2 S model is most reasonable. So the numerical simulation of the LHe transfer was obtained. The results show that the radiation of wal...
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