28 June 2015 to 2 July 2015
JW Marriott Starr Pass Resort
Etc/GMT-7 timezone

Application of plate-fin heat exchangers with different UAs for mitigating the effects of pulsed heat load

Not scheduled
2h
JW Marriott Starr Pass Resort

JW Marriott Starr Pass Resort

Tucson, Arizona USA
Poster Presentation CEC-01 - Large-Scale Refrigeration and Liquefaction

Speaker

Prof. Lai Feng Li (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

Description

The heat loads of the superconducting magnets in an international fusion device are pulsating with time, which will cause the variation of the return mass flow of the refrigerator.It is necessary to mitigate the fluctuation of the mass flow to avoid the performance degradation of turbines and compressors which designed to operate in a narrow range of mass flow. In this paper, a novel technicalwas suggested after thermodynamic analysis, wherea traditional single heat exchangerwas replaced by two plate-fin heat exchangers in cold end.Though reasonableselection of the UAs , the mass flow fluctuation could be decreased. The results of the dynamic simulation revealed that the fluctuation of mass flow only occurred in the short time, the average mitigation was greater than 95%.

Primary author

Dr Xiujuan Xie (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

Co-authors

Ms Cui Lv (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences) Prof. Hui Ming Liu (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences) Prof. Jihao Wu (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences) Prof. Qing Li (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

Presentation Materials