期刊
ANNALS OF NUCLEAR ENERGY
卷 85, 期 -, 页码 290-295出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.anucene.2015.05.025
关键词
Porous media; Single and two-phase flows; Pressure drop
资金
- National Natural Science Foundation of China [51406143]
- Natural Science Basic Research Plan in Shaanxi Province of China [2015JM5237]
- Xi'an Jiaotong University [1191310017]
This paper reports an experimental research of single and two-phase gas/liquid flow in packed porous beds composed of multi-sizes spheres and irregular particles. A test facility named DEBECO-LT is designed and constructed to investigate the friction laws of adiabatic single and two-phase flows in a porous bed. The results show that the effective diameter of multi-sizes non-spherical or irregular particles bed can be derived on the basis of bed consisted of spheres as long as they have a wide range of grain sizes and the similar size distribution. Given the effective particle diameter obtained from single-phase flow through the packed bed with multi-size spheres or irregular particles, the pressure drop of two-phase flow through the bed can be predicted by the Reed model. The experimental data provide insights for the flow characteristic of porous bed, as well as high-quality data for validation of the coolability analysis models and codes. (C) 2015 Elsevier Ltd. All rights reserved.
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