NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Greenhouse Gas Emissions and Dispersion #2. Comparison of FDS Predictions with Gas Velocity Measurements in the Exhaust Duct of a Stationary Source
Published
Author(s)
Kuldeep R. Prasad, Kevin Li, Elizabeth F. Moore, Rodney A. Bryant, Aaron N. Johnson, James R. Whetstone
Abstract
The burning of fossil fuels remains a major source of greenhouse gases responsible for global warming and climate change. In order to reduce greenhouse gas emissions, it is imperative to develop a capability to accurately measure these emissions from point and area sources. The NIST Large Fire Laboratory (LFL) has conducted greenhouse gas emission tests (point sources) through detailed measurements within an exhaust duct. The experiments were simulated through computational fluid dynamics (CFD) programs such as Fire Dynamics Simulator (FDS) to obtain a better understanding of the flow field through an exhaust duct. This report describes FDS model development for simulating flow through a circular exhaust duct and comparison of simulation results with experimental data. The final geometry and calculations made with FDS demonstrate our capability to simulate the flow through cylindrical exhaust duct geometry, and to accurately predict the emissions of greenhouse gases.
Prasad, K.
, Li, K.
, Moore, E.
, Bryant, R.
, Johnson, A.
and Whetstone, J.
(2013),
Greenhouse Gas Emissions and Dispersion #2. Comparison of FDS Predictions with Gas Velocity Measurements in the Exhaust Duct of a Stationary Source, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.SP.1159
(Accessed October 10, 2025)