Local Furnace Data and Modeling Comparison for a 600-MWe Coal-Fired Utility Boiler
Author:
Hwang Yuh-Long1, Howell John R.2
Affiliation:
1. Dynegy Marketing and Trade, Houston, TX 2. Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712
Abstract
Reductions in furnace exit gas temperature (FEGT) by changing boiler operating variables and/or adding wall soot blowers and/or lowering burner elevations are investigated. Evaluation of these approaches requires experimental furnace testing and computational furnace modeling. The experimental facility is a Combustion Engineering corner-fired pulverized-coal boiler with a capacity of 606 MWe. Local gas temperature distributions, local radiative and total wall heat flux distributions, and stack NOx were measured during constant-load furnace tests under various combinations of burner configuration, burner tilt angles, excess-O2 setpoints and overfire airflow rate. These measurements are used for tuning and calibrating a furnace model based on the PCGC-3 code developed by Brigham Young University. The experimental data gathered in this work comprise a comprehensive set under controlled conditions on a very-large-scale coal-fired plant and provides information for use in comparing the predictions of furnace-design codes.
Publisher
ASME International
Subject
Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment
Reference14 articles.
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