Experimental investigation on He II porous plug liquid-vapor phase separator

摘要

In this paper, the tests of a series of He II porous plug liquid-vapor phase separators for bath temperature at 1.5-1.9K are presented. For one separator, two regions (initial region and hysteresis loop) are observed in the relationship between mass flow rate and temperature (or pressure) difference. For two separators with similar parameters, the repeatability of experimental data could be observed. Furthermore, in order to prepare theoretical analysis of the separator, the data of cold vapor flow rate is obtained when the He II liquid level was below the porous plug.