Visualization of flow pattern in thermosyphon by ECT

被引：35
|
作者：
Liu, Shi [1 ]
Li, Jingtao
Chen, Qi
机构：
[1] N Univ Elect Power Univ China, Sch Energy & Power Engn, Beijing 102206, Peoples R China
[2] Jiao Tong Univ, Beijing 100044, Peoples R China
来源：
FLOW MEASUREMENT AND INSTRUMENTATION | 2007年 / 18卷 / 5-6期
关键词：
flow visualization; thermosyphon; electrical capacitance tomography;
D O I：
10.1016/j.flowmeasinst.2007.06.012
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Visualization of the liquid flow in a two-phase closed thermosyphon (TPCT) is studied using electrical capacitance tomography (ECT) with optimal step lengths for iterative image reconstruction algorithm. Measurements are made under a range of heating rates. Experimental results demonstrated ECT's capability of reconstructing images of thin films of the order of mu m in thickness. Results are compared with the established theory and agreements and discrepancies are observed for different thresholds. ECT images of the liquid distributions in the TPCT show clear dependence on the variation of working conditions, which reveals the potential of ECT as an advanced technique for monitoring the operation of TPCT. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：216 / 222
页数：7
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