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RESEARCH PAPERS

A Furnace Wall Ash Monitoring System for Coal Fired Boilers

[+] Author and Article Information
A. K. Chambers, J. R. Wynnyckyj, E. Rhodes

Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada

J. Eng. Power 103(3), 532-538 (Jul 01, 1981) (7 pages) doi:10.1115/1.3230761 History: Received July 09, 1980; Online September 28, 2009

Abstract

This paper describes the successful development of an ash-deposit monitoring system for use in large pulverized-coal fired boilers. Using commercially proven heat flux meters the system measures the severity of ash deposition by measuring the net decrease in heat flux through the boiler walls. Testing of a prototype in two Canadian Utility boilers burning Western coals has shown that the system gives a reliable measure of the cleanliness of furnace walls and of the effectiveness (or failure) of soot blowers to remove deposits. Indications are that the system will be valuable in improving efficiency of boiler operations and in minimizing slagging and fouling problems when firing difficult coals.

Copyright © 1981 by ASME
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