APPLICATION OF CAPACITANCE TOMOGRAPHY TO GAS-SOLID FLOWS

The fundamental principles of electrical capacitance tomography (ECT) are presented. In particular, the recent developments in the use of a back-projection algorithm applied to solve an inverse problem are disc ussed. Experimental results obtained for monitoring a pneumatic convey ing system and bubbling fluidization are reviewed and revised data are presented. The performance of the ECT is assessed in quantitative and qualitative terms. The use of ECT to provide novel on-line measuremen t information suitable for modelling or control purposes is illustrate d. (C) 1997 Elsevier Science Ltd. All rights reserved.