CAJ | 학술논문

针对高度循环流化床管道内固相介质的流动具有封闭性和模糊性，一般检测技术不能清晰地反演出HDCFB中固相介质分布特征的问题，选用先进的检测技术——电容层析成像技术——来在线显示HDCFB中固相介质的分布情况。提出了集合ECT测量信息和被测量对象的物理演化信息的广义动态重建算法。该算法同时考虑了被测对象的空间约束、时间约束和被测对象在流动过程的动态变化特性。动态实验研究表明：该算法可成功求解ECT逆问题，确保有一稳定的数值解；ECT可捕获HDCFB内管道截面固相介质的分布情况，成功重建管道内的流动模型。
침대고도순배류화상관도내고상개질적류동구유봉폐성화모호성，일반검측기술불능청석지반연출HDCFB중고상개질분포특정적문제，선용선진적검측기술——전용층석성상기술——래재선현시HDCFB중고상개질적분포정황。제출료집합ECT측량신식화피측량대상적물리연화신식적엄의동태중건산법。해산법동시고필료피측대상적공간약속、시간약속화피측대상재류동과정적동태변화특성。동태실험연구표명：해산법가성공구해ECT역문제，학보유일은정적수치해；ECT가포획HDCFB내관도절면고상개질적분포정황，성공중건관도내적류동모형。
Investigating the distribution characteristics of the solid particles in a high density circulat-ing fluid bed （HDCFB） is vital to strengthen the heat and mass transfer, reduce the pollutant emis-sion and improve the system efficiency. However, solid particles in the pipe of HDCFB was closedand fuzzy, and the regular detection techniques could not invert the distribution characteristics clear- ly. In this paper, electrical capacitance tomography （ECT） technique was employed to visualize thedistribution characteristics of the solid particles in a HDCFB. A generalized dynamic reconstruction model, which integrates ECT measurement information and physical evolution information of the ob-jects of interest, is presented. A generalized objective function that simuhaneously considers the spa-tial constraints, the temporal constraints and the dynamic evolution information of the objects of inter-est in a dynamic process is proposed. Dynamic experimental studies indicate that the proposed algo-rithm is successful in solving ECT inverse problem, and can ensure a stable numerical solution. Inaddition, experimental results reveal that ECT method can capture the distribution behaviors of thesolid particles in the cross section, and successfully reconstruct the typical flow patterns.