SINGLE PHASE AND TWO-PHASE FLOW PRESSURE DROP IN PEBBLE BEDS
An experimental study was conducted on the pressure drop of single phase and air-water two-phase flow in the bed of rectangular cross sections filled with uniform spheres densely. In the present flow-regime model, the bed was subdivided into a near-wall region and a central region. And a new empirical correlation for the prediction of single-phase flow pressure drops was proposed based on the model. The correlation can be used to predict the single phase pressure drop for both great tube-to-particle diameter ratio packed beds and small tube-toparticle diameter ratio packed beds and for the pebble beds packing with spherical particles and non spherical particles. A new empirical correlation for the prediction of two-phase flow pressure drops was proposed based on the gas phase relative permeability as a function of the gas phase saturation and the void fraction. The correlation fit well also for both experimental data points of spherical particles and non spherical particles.
Bofeng Bai Maolong Liu Xiaofei Lv Wang Su Xiao Yan Zejun Xiao
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University Xi’an 710049 Lab of Bubble Physics and Natural Circulation,Nuclear Power Institute of China, Chengdu 610041,China Lab of Bubble Physics and Natural Circulation,Nuclear Power Institute of China, Chengdu 610041, Chin
国际会议
18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)
西安
英文
1-10
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）