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Publication Citation: Comparison of Gas Velocity Measurements and CFD Predictions in the Exhaust Duct of a Stationary Source

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Author(s): Rodney A. Bryant; Olatunde B. Sanni; Elizabeth F. Moore; Robert P. Borthwick; Marco G. Fernandez; Iosif I. Shinder; Jiann C. Yang; Aaron N. Johnson;
Title: Comparison of Gas Velocity Measurements and CFD Predictions in the Exhaust Duct of a Stationary Source
Published: July 13, 2011
Abstract: Two series of independent flow measurements were conducted for cross validation of flow velocity in the exhaust duct of the NIST Large Fire Laboratory. In the first series, two pressure measurement probe types, an S probe and a 3-D probe, were used to perform velocity profiling across two chords of the exhaust duct. Several detailed velocity profiles were generated using a probe traverse spacing of 2.54 cm (1.0 in). CFD simulations showed good qualitative agreement for cold flow conditions. The second series of measurements used two S probes, one on each chord, and a minimum of 20 EPA Method 1 traverse positions per chord. Qualitative comparisons of the velocity profiles showed that the flow profiles at the sampling plane were sensitive to run conditions such as flow inlet location, flow magnitude, and heat content of the flow.
Conference: Continuous Emissions Monitoring User Group Conference & Exhibit 2011
Proceedings: Proceedings: Continuous Emissions Monitoring User Group Conference & Exhibit 2011
Pages: 15 pp.
Location: Chicago, IL
Dates: June 8-10, 2011
Keywords: flow measurement; CFD; emissions monitoring
Research Areas: Fire Measurements, Sustainability, Sustainability Metrics and Tools, Environmental Technologies
PDF version: PDF Document Click here to retrieve PDF version of paper (1MB)