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1. Greenhouse Gas Emissions and Dispersion #2. Comparison of FDS Predictions with Gas Velocity Measurements in the Exhaust Duct of a Stationary Source
Series: Special Publication (NIST SP)
Report Number: 1159
Published: 4/25/2013
Authors: Kuldeep R Prasad, Kevin Li, 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 emission ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912448

2. Greenhouse Gas Emissions and Dispersion 1. Optimum placement of gas inlets on a building rooftop for the measurement of greenhouse gas concentrations
Series: Special Publication (NIST SP)
Report Number: 1158
Published: 4/22/2013
Authors: Kuldeep R Prasad, Anthony Bova, James R Whetstone, Elena Novakovskaia
Abstract: Inverse atmospheric dispersion models are used to provide measurement-based, or “topdown”, estimates of greenhouse gas (GHG) emissions for comparison with input-based, or “bottom-up”, estimates. To minimize uncertainty, inverse estimates require ac ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912537

3. Helium Dispersion in an Attached Single-Car Residential Garage with and Without Vehicle
Series: Technical Note (NIST TN)
Report Number: 1731
Published: 10/2/2012
Authors: William M Pitts, Jiann C Yang, Marco G Fernandez, Kuldeep R Prasad
Abstract: The dispersion and loss of helium inside a single-car residential garage attached to a single-family house was experimentally characterized by recording time-resolved helium concentrations at multiple locations in the garage and at a single locat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909328

4. A NUMERICAL STUDY OF THE RELEASE AND DISPERSION OF A BUOYANT GAS IN PARTIALLY CONFINED SPACES
Published: 3/4/2011
Authors: Kuldeep R Prasad, William M Pitts, Jiann C Yang
Abstract: Development of the hydrogen economy will require a better understanding of the potential for fires and explosions associated with the unintended release of hydrogen within a structure. The ability to predict the mixing and dispersion behavior of hydr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906120

5. High Pressure Release and Dispersion of Hydrogen in a Partially Enclosed Compartment
Published: 3/1/2011
Authors: Kuldeep R Prasad, Thomas George Cleary, William M Pitts, Jiann C Yang
Abstract: The study of compressed hydrogen release from high-pressure storage systems has practical application for hydrogen and fuel cell technologies. Such releases may occur either due to accidental damage to a storage tank or connecting piping, or direct ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906807

6. Vertical Release of Hydrogen in a Partially Enclosed Compartment : Role of Wind and Buoyancy
Published: 1/25/2011
Authors: Kuldeep R Prasad, William M Pitts, Jiann C Yang
Abstract: The natural and wind driven mixing and dispersion of hydrogen released in an accidental manner in a partially enclosed compartment with two vents is investigated using theoretical tools. A simple analytical model is constructed to predict the entra ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905660

7. Effect of wind and buoyancy on hydrogen release and dispersion in a compartment with vents at multiple levels
Published: 11/30/2010
Authors: Kuldeep R Prasad, William M Pitts, Jiann C Yang
Abstract: The natural and forced mixing and dispersion of hydrogen released in an accidental manner in a partially enclosed compartment with vents at multiple heights is investigated using theoretical tools. The key to the analysis is determination of the po ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905165

8. A Heat Transfer Model for Firefighters Protective Clothing, Continued Developments in Protective Clothing Modeling
Published: 2/7/2010
Authors: James R. Lawson, William E. Mell, Kuldeep R Prasad
Abstract: In the year 2000, a paper entitled A Heat Transfer Model for Firefighters Protective Clothing was published in Volume 36, No. 1, of Fire Technology, and it received the 2001 Harry C. Bigglestone Award for Excellence in Written Communication of Fir ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904082

9. A Materials Science-Based Approach to Characterizing Fire Resistive Materials
Published: 4/9/2009
Authors: Dale P Bentz, Christopher C White, Kuldeep R Prasad, Daniel Robert Flynn, Donald Lee Hunston, Kar Tean Tan
Abstract: While ASTM E119-07a is commonly employed to establish a fire rating for a fire resistive material (FRM)/steel assembly, the test method provides little quantitative information on either the thermophysical or adhesion properties of the FRM, beyond in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861622

10. NUMERICAL SIMULATION OF FIRE SPREAD ON POLYURETHANE FOAM SLABS
Published: 3/17/2009
Authors: Kuldeep R Prasad, Roland Kramer, Nathan D Marsh, Marc R Nyden, Thomas J. Ohlemiller, William M Pitts, Mauro Zammarano
Abstract: The NIST Fire Dynamics Simulator (FDS) is used extensively by the fire protection engineer for performance based design and forensic analysis. The equations of motion describing the gas phase are relatively well known and the approximations in the va ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901154