A Non-Newtonian Flow Model for Coal-Ash Slag

[+] Author and Article Information
E. K. Johnson

Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, W.V. 26506

J. Eng. Gas Turbines Power 106(4), 777-781 (Oct 01, 1984) (5 pages) doi:10.1115/1.3239638 History: Received July 15, 1983; Online October 15, 2009


The performance of high-temperature slagging coal-utilization systems depend on the collection of coal ash on the reactor surfaces and the flow of the slag out of the reactor through a slag-tap hole. In order to develop an analytical model for flow of the slag on a reactor wall, existing data for slag viscosity were reviewed in light of new emerging-process conditions. A Bingham model was selected for viscosity and the flow characteristics along a reactor wall are developed.

Copyright © 1984 by ASME
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