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Prediction of Fouling and Slagging in Pulverized-Coal Fired Furnaces

[+] Author Affiliations
Ezra Bar-Ziv

Michigan Technological University, Houghton, MI

Efim Korytnyi, Miron Perelman, Roman Saveliev

Ben Gurion University, Beer-Sheva, Israel

Boris Chudnovsky

Israel Electric Corporation, Haifa, Israel

Paper No. POWER2013-98045, pp. V001T01A007; 10 pages
doi:10.1115/POWER2013-98045
From:
  • ASME 2013 Power Conference
  • Volume 1: Fuels and Combustion, Material Handling, Emissions; Steam Generators; Heat Exchangers and Cooling Systems; Turbines, Generators and Auxiliaries; Plant Operations and Maintenance
  • Boston, Massachusetts, USA, July 29–August 1, 2013
  • Conference Sponsors: Power Division
  • ISBN: 978-0-7918-5605-5
  • Copyright © 2013 by ASME

abstract

The objective of this paper is to develop a method for predicting the fouling dynamics and thermal resistance of a certain coal and its fly ash in a coal-fired utility boiler as well as determine the emissivity of the fly ash in order to optimize soomblowing procedures for fouling clean-up. The methodology comprises combustion experiment in a 50kW test facility, characterization of the coal and its mineral matter and the consequent fly ash as well a series of computational fluid dynamic simulations. Ash deposition from Cerrejon D Colombian and Billiton-Prime South African coals were studied and their behavior predicted in 575MW tangentially-fired and 550MW opposite-wall boilers. Good comparison was obtained between predicted results and actual data from the boilers.

Copyright © 2013 by ASME
Topics: Coal , Furnaces

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