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Publications

Search Publications by Kuldeep Prasad

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Displaying 1 - 25 of 88

Structure Separation Experiments Phase 1 Preliminary Test Plan

May 26, 2021
Author(s)
Alexander Maranghides, Shonali Nazare, Eric Link, Kuldeep Prasad, Matthew Hoehler, Matthew Bundy, Steven Hawks, Frank Bigelow, William (Ruddy) Mell, Anthony Bova, Derek McNamara, Tom Milac, Daniel Gorham, Faraz Hedayati, Bob Raymer, Frank Frievalt, William Walton
The primary objective of this project is to assess structure-to-structure fire spread for structures located in the Wildland Urban Interface (WUI). Full-scale fire experiments will be conducted in which various types of structures (sources of fire) will be

Wintertime CO2, CH4 and CO emissions estimation for the Washington DC / Baltimore metropolitan area using an inverse modeling technique

February 11, 2020
Author(s)
Israel Lopez Coto, Xinrong Ren, Olivia E. Salmon, Anna Karion, Paul B. Shepson, Russell R. Dickerson, Ariel Stein, Kuldeep R. Prasad, James R. Whetstone
Since greenhouse gas mitigation efforts are being mostly implemented in cities, the ability to quantify emission trends for urban environments is of paramount importance. However, previous aircraft work has indicated large daily variability in the results

Evaluation of WRF-Chem Simulated Carbon Dioxide Atmospheric Transport and Emissions in the Baltimore / Washington Metropolitan Area

November 10, 2018
Author(s)
Cory R. Martin, Ning Zeng, Anna Karion, Kimberly L. Mueller, Subhomoy Ghosh, Israel Lopez Coto, Kevin Gurney, Tomohiro Oda, Kuldeep R. Prasad, Yun Liu, Russell R. Dickerson, James R. Whetstone
Urban areas are major sources of carbon dioxide (CO2) emissions, contributing to the increase in global concentrations and leading to concerns about Earth's future climate. In recent years, several urban testbeds have been implemented to improve and

Chapter 2 : Failure Modes, Likelihood, and Consequences

January 20, 2018
Author(s)
Kuldeep R. Prasad
The general purpose of underground gas storage (UGS) is to meet varying demand for natural gas (methane, CH4) over daily to seasonal time scales in the face of constant rate gas production and limited pipeline transport capacity. In California, UGS is used

Tower based measurement network design for the North East Corridor project

May 17, 2017
Author(s)
Israel Lopez Coto, Subhomoy Ghosh, Kuldeep R. Prasad, James R. Whetstone
The North-East Corridor project aims to use a top-down inversion method to quantify sources of Greenhouse Gas (GHG) emissions in the urban areas of, in the first phase, Washington DC and Baltimore at approximately 1km2 resolutions. Since inversion methods

Greenhouse Gas Emissions and Dispersion 3. Reducing Uncertainty in Estimating Source Strength and Location through Plume Inversion Models

September 30, 2015
Author(s)
Kuldeep R. Prasad, Adam L. Pintar, Heming Hu, Israel Lopez Coto, Dennis T. Ngo, James R. Whetstone
Recent development of accurate instruments for measuring greenhouse gas concentrations and the ability to mount them in ground based vehicles has provided an opportunity to make temporally and spatially resolved measurements in the vicinity of suspected

Quantification of Methane Emissions From Street Level Data

July 2, 2014
Author(s)
Kuldeep R. Prasad
Kuldeep Prasad(1), Brian Lamb(2), Maria Obiminda Cambaliza(3), Tegan Lavoie(3), Olivia E Salmon(3), Paul Shepson(3), Thomas Lauvaux(4), Ken Davis(4), and James R. Whetstone(1) (1) National Institute of Standards and Technology, Gaithersburg, MD. (2)

Response to Comments on the National Institute of Standards and Technology Investigation of the 2001 World Trade Center Fires

April 15, 2014
Author(s)
Richard G. Gann, Anthony P. Hamins, Therese P. McAllister, Kevin B. McGrattan, William M. Pitts, Kuldeep R. Prasad
The editor of a special issue of Fire Technology invited the NIST authors to address the NIST Investigation of the WTC disaster and associated practice and research progress in the 10 years since then. The three published papers are a summary of the

Quantification of Methane Source Locations and Emissions

December 13, 2013
Author(s)
Kuldeep R. Prasad
Kuldeep Prasad(1), Brian Lamb(2), Maria Obiminda Cambaliza(3), Tegan Lavoie(3), Olivia E Salmon(3), Paul Shepson(3), Thomas Lauvaux(4), Ken Davis(4), and James R. Whetstone(1) (1) National Institute of Standards and Technology, Gaithersburg, MD. (2)

Measurements of effective diffusion coefficients of helium and hydrogen through gypsum

July 3, 2013
Author(s)
Jiann C. Yang, William M. Pitts, Marco G. Fernandez, Kuldeep R. Prasad
An experimental apparatus, which was based on the ¿-scale garage previously used for studying helium release and dispersion in our laboratory, was used to obtain effective diffusion coefficients of helium and hydrogen (released as forming gas for safety

Greenhouse Gas Emissions and Dispersion #2. Comparison of FDS Predictions with Gas Velocity Measurements in the Exhaust Duct of a Stationary Source

April 25, 2013
Author(s)
Kuldeep R. Prasad, Kevin Li, Elizabeth F. Moore, Rodney A. Bryant, Aaron N. Johnson, James R. Whetstone
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

Greenhouse Gas Emissions and Dispersion 1. Optimum placement of gas inlets on a building rooftop for the measurement of greenhouse gas concentrations

April 22, 2013
Author(s)
Kuldeep R. Prasad, Anthony Bova, James R. Whetstone, Elena Novakovskaia
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 accurate

In situ monitoring of atmospheric methane using a dense network in the Northeastern U.S.

February 28, 2013
Author(s)
Kuldeep R. Prasad, Elena Novakovskaia, Marc Fischer, Chris Sloop
Methane (CH4) is one of the major greenhouse gases with a CO2–relative global warming potential above 20 over a 100-year period (IPCC TAR). Global average concentration of this tracer in Earth's atmosphere is increasing due to widely spread surface sources

Reconstruction of the Thermal Environment in the Tall World Trade Center Buildings

January 11, 2013
Author(s)
Richard G. Gann, Anthony P. Hamins, Kevin B. McGrattan, Thomas J. Ohlemiller, Kuldeep R. Prasad, William M. Pitts, Harold E. Nelson
The National Institute of Standards and Technology (NIST) conducted an extensive investigation of the collapse of the three tall World Trade Center (WTC) buildings. This paper describes the reconstruction of the fires, the thermal environment they created