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Numerical Simulation of Nagging Films in the Aachen Pressurized Coal Combustion Facility
Author(s) -
Hecken M.,
Reichelt L.,
Renz U.
Publication year - 2001
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500090305
Subject(s) - pulverized coal fired boiler , fluent , combustion , engineering , slag (welding) , coal , coal combustion products , nuclear engineering , waste management , mechanical engineering , computer simulation , process engineering , simulation , chemistry , organic chemistry
Combined gas and steam turbine processes based on direct coal firing show a high thermal efficiency. At RWTH Aachen, University of Technology, an experimental test furnace has been built to investigate the pressurized pulverized coal combustion (PPCC). The PPCC‐facility has been constructed as a slag tap furnace. Particles hitting the walls at temperatures above the melting point came stagging depositions and create a film flowing down the reactor walls. As a part of the PPCC‐program different mathematical models have been developed and implemented into the CFD‐code FLUENT to predict the behavior of slag films at the furnace walls. Numerical strategies and the mathematical models used are described in detail.