Comparison of empirically based calculation methods for pipe flares to computational fluid dynamics

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Publication Type report
Program American Flame Research Committee (AFRC)
Author Martin, Matthew
Title Comparison of empirically based calculation methods for pipe flares to computational fluid dynamics
Date 2007
Description As available computational resources increase and the use of computational fluid dynamics (CFD) becomes more widely accepted wider classes of industrial scale combustion systems are being simulated and optimized using these resources. A largebody of empirically based work has already been assembled to model the behavior of the large-scale turbulent diffusion flames used in flares. The work of Brzustowski and others is the de-facto standard for flare flame behavior calculations. Performing the calculations outlined by Brzustowski still requires significantly less time than performing a simulation of the same conditions using CFD, however the use of CFD may allow extrapolation to conditions not within the data set or calculation methods currently in use. Others have recently used CFD to model flare systems with success, but to our knowledge no direct comparison has been made with previous empirical work. This validation is necessary; the validation typically performed for commercially available CFD codes are taken from well-controlled lab-scale experiments and not industrial scale flows. Additionally, comparison between the results produced by CFD and those of previous published calculation methods will allow one to identify when the relatively fast empirically based methods are adequate and when a more time consuming CFD study should be performed. The predicted radiation and plume trajectory of a simple pipe flare in a cross wind is compared to the empirical data and calculation results from the "API method" of 2007 and the "Brzustowski and Sommer's" method for several different cross winds. Identification of differences in the results, and recommendations for the when it is appropriate to apply each of the calculation methods are made.
Type Text
Publisher American Flame Research Committee (AFRC)
Language eng
Relation Has Part Martin, M. (2007). Comparison of empirically based calculation methods for pipe flares to computational fluid dynamics. American Flame Research Committee (AFRC).
Rights Management (c)American Flame Research Committee (AFRC)
Format Medium application/pdf
Format Extent 362,744 bytes
Identifier ir-admin2,21369
ARK ark:/87278/s6t15k3k
Setname ir_eua
Date Created 2012-10-23
Date Modified 2012-10-23
ID 212850
Reference URL https://collections.lib.utah.edu/ark:/87278/s6t15k3k
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