A comparison of thermal condition between pilot- and full-scale furnaces for studying slagging and fouling propensity in PF boilers

Su, Shi, Pohl, John H., Holcombe, Don and Hart, John A. (2001) A comparison of thermal condition between pilot- and full-scale furnaces for studying slagging and fouling propensity in PF boilers. Combustion Science And Technology, 165 1: 129-150.


Author Su, Shi
Pohl, John H.
Holcombe, Don
Hart, John A.
Title A comparison of thermal condition between pilot- and full-scale furnaces for studying slagging and fouling propensity in PF boilers
Journal name Combustion Science And Technology
Publication date 2001
Sub-type Article
DOI 10.1080/00102200108935829
Volume number 165
Issue number 1
ISSN 0010-2202: 0588-5698: 0010-2203
Start page 129
End page 150
Total pages 22
Editor R. A. Yetter
Place of publication New York
Publisher Gordon & Breach Science Publishers
Collection year 2001
Language eng
Subject C1
290600 Chemical Engineering
660101 Coal-electricity
Abstract The Australian Coal Industry Research Laboratory (ACIRL) furnace is scaled to simulate slagging and fouling in operating boilers. This requires that the gas and target temperatures, the heat flux, and the flow pattern be the same as those in real boilers. The gas and target temperatures are maintained by insulating the wall and cooling the target respectively. The flow pattern of a small burner cannot be the same as a large furnace. However, this flow pattern is partially compensated for by placing the slagging panels in three vertical locations. The paper develops the models of radiant heat transfer from the flame to the deposits both in pilot-scale and full-scale furnaces. They are used to compare the effective radiant heat transfer of the pilot- and full-scale furnaces. The experimental data both from the pilot- and full-scale furnaces are used to verify the incident heat flux and temperature profiles in the pilot- and full-scale furnaces. The results showed that the thermal condition in the pilot-scale furnace meets the requirements for studying the slagging regarding the gas temperature and the incident heat flux, particularly for the panel #1. The gas temperature in the convective section also meets the requirement for studying the fouling.
Keyword Thermodynamics
Energy & Fuels
Engineering, Multidisciplinary
Engineering, Chemical
Ash Deposition
Thermal Condition
Heat Flux
Gas Temperature
Emissivity
Q-Index Code C1

Document type: Journal Article
Sub-type: Article
Collection: School of Chemical Engineering Publications
 
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Created: Tue, 14 Aug 2007, 16:12:20 EST