Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2013, Vol. 24 ›› Issue (1): 010603 doi: 10.13538/j.1001-8042/nst.2013.01.010

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles    

Performance analysis of gas-liquid cylindrical cyclone (GLCC) separator with an inclined and perforated wall

HUANG Shanfang, WEN Yiqian, WANG Dong   

  1. 1Department of Engineering Physics, Tsinghua University, Beijing 100084, China
    2Shandong Electric Power Engineering Consulting Institute Corp. Ltd, Ji’nan 250013, China
    3School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
  • Supported by:

    Supported by National Natural Science Foundation of China (No. 51006068);Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China

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HUANG Shanfang, WEN Yiqian, WANG Dong. Performance analysis of gas-liquid cylindrical cyclone (GLCC) separator with an inclined and perforated wall.Nuclear Science and Techniques, 2013, 24(1): 010603     doi: 10.13538/j.1001-8042/nst.2013.01.010

Abstract:

As primary separators in pressurized water reactors (PWRs), cyclone separators separate most of the water from vapor-water two-phase mixture, which is important to the safety and economics of nuclear power plants. To improve the performance of cyclone separators, we tested new structures in this study, e.g. porosity and inclined angle of the separator wall. Under different structures, separation efficiency and pressure drop were studied theoretically and experimentally. Results show that each of the structural parameters has an effect on separator performance, but none of the trends is monotonically in experimental ranges. Besides separator structures, the comprehensive performance is also determined by flow patterns. From segregated to homogeneous flow, the separation ability decreases. The separation efficiency is about 5% higher at 20° inclined angle when the superficial velocities are 0.012 and 16 m·s-1 for the liquid and gas, respectively. The separation efficiency is only 91% without an impeller, while it is up to 100% at the same superficial velocities of air and water, 16 and 0.015 m·s-1 , respectively. Based on the study, it is promising to understand deeply the separation mechanism and further to provide data for designing large-scaled separators for advanced pressurized water reactors.

Key words: Cyclone separator, Two-phase flow, Separation efficiency