Demonstrated Implementation of Detailed Chemistry into CFD Simulations for Tailored Commercial Evaluation of Industrial Combustion Equipment

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Title Demonstrated Implementation of Detailed Chemistry into CFD Simulations for Tailored Commercial Evaluation of Industrial Combustion Equipment
Creator Cremer, M.A.
Contributor Wang, D.H.; Adams, B.R.
Date 2014-09-10
Spatial Coverage Houston, Texas
Subject 2014 AFRC Industrial Combustion Symposium
Description Paper from the AFRC 2014 conference titled Demonstrated Implementation of Detailed Chemistry into CFD Simulations for Tailored Commercial Evaluation of Industrial Combustion Equipment by M. Cremer.
Abstract CFD simulation of industrial combustion equipment for trouble shooting, optimization, and design related to emissions or performance has become an ever increasingly utilized tool along with testing and empirically based methods. Depending on the fuels and the conditions under which they are burned, the chemical kinetics involved in the combustion process along with the turbulent mixing and heat transfer must be sufficiently accurate in order to predict performance and emissions at a level useful for decision making, but also balance model complexity and sophistication with existing computational resources and time. This paper will discuss how CFD models have been developed, tailored, and utilized to address combustion related problems associated with: 1) NOx and CO emissions in low NOx process heaters, 2) quality and extent of reaction in hydrocarbon reforming applications, and 3) heat transfer and emissions associated with an air to oxy conversion in special purpose steam generators. All three applications involve the use of REI's internally developed Reynolds Averaged Navier Stokes (RANS) based ADAPT CFD code. ADAPT accommodates local mesh refinement based on an unstructured Cartesian based grid. The associated chemical mechanisms that have been incorporated into these simulations are based on a robust mechanism reduction approach using quasi steady state assumptions and use of the Computer Assisted Reduction Method (CARM). The paper will describe how this approach yields robust and accurate representation of the problem specific detailed chemistry within the CFD simulations. In all three examples, parametric simulations are carried out on a time scale short enough to support design efforts within actual commercial projects using REI's in-house computer resources.
Type Event
Format application/pdf
Rights No copyright issues exist.
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ARK ark:/87278/s67q1wkp
Setname uu_afrc
Date Created 2015-10-28
Date Modified 2015-10-30
ID 14396
Reference URL https://collections.lib.utah.edu/ark:/87278/s67q1wkp