CEC-ICMC 2015 - Timetable, Abstracts and Presentations

The simulation of the heat and mass transfer performance in 1st heat exchanger of the inner purifer

Not scheduled

2h

JW Marriott Starr Pass Resort

Poster Presentation CEC-12 - Fluid Mechanics, Heat Transfer, and Cryogen Properties

Speaker

Mr Peng Xu (The Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences)

Description

As we know, the performance of the inner purifier plays an important role in the operation of the helium liquefier. In inner purifier, contaminated helium gas goes into the first stage heat exchanger (1st HEX) and is cooled down to nearly 65K, parts of impurity turn to liquid, which are subsequently removed when passing through liquid separate pot. Thus the heat and mass transfer performance of the condensation of the impurity in 1st HEX should be investigated, with high concentration of the non-condensable gas helium. In this paper, a simulation is presented and the results fit well with the experimental data.