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Search Publications by: William Stuart Dols (Fed)

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Displaying 26 - 50 of 68

Formaldehyde Concentrations in a Net-Zero Energy House: Real-time Monitoring and Simulation

April 19, 2016
Author(s)
Dustin Poppendieck, Shahana S. Khurshid, William Stuart Dols, Lisa Ng, Brian Polidoro, Steven Emmerich
Measured real-time formaldehyde concentrations in a net-zero energy house were compared to simulated concentrations from a recently-developed, coupled building energy and airflow/indoor air quality model. Measured and simulated formaldehyde concentrations

CONTAM RESULTS EXPORT TOOL

March 9, 2016
Author(s)
Brian Polidoro, Lisa Ng, William Stuart Dols
CONTAM is a multizone indoor air quality and ventilation analysis program developed by the National Institute of Standards and Technology (NIST). Since CONTAM simulation files are binary and not human-readable, the CONTAM Results Export Tool was created to

CONTAM User Guide and Program Documentation Version 3.2

September 4, 2015
Author(s)
William S. Dols, Brian J. Polidoro
This manual describes the computer program CONTAM version 3.2 developed by NIST. CONTAM is a multizone indoor air quality and ventilation analysis program designed to help you determine: airflow rates and pressures – infiltration, exfiltration, and room-to

Modeling Particle Resuspension for Estimating Exposure to Bacillus Spores

June 11, 2015
Author(s)
William S. Dols, Andrew K. Persily
A key challenge in assessing the risks of low level contaminations following biological threat agent releases, and subsequent decontamination, is developing an understanding of and addressing the potential for airborne resuspension of agents that have

CONTAM To EnergyPlus Infiltration Features of the CONTAM Results Export Tool

March 30, 2015
Author(s)
Brian J. Polidoro, Lisa C. Ng, William S. Dols, Steven J. Emmerich, Andrew K. Persily
As building envelope performance and HVAC equipment efficiencies continue to be improved to reduce building energy use, a greater percentage of the total energy loss of a building can occur through envelope leakage. Although the energy impacts of

Application of a Natural Ventilation System Design Tool To A School Building

November 8, 2013
Author(s)
Steven J. Emmerich, William S. Dols, Brian J. Polidoro
A software tool to aid in the design of natural ventilation systems has recently been udpated. This update implements a general method for sizing of natural ventilation components, which allows direct consideration of stack and wind-driven airflow. The

A stiff variable time step transport solver for CONTAM

May 10, 2013
Author(s)
David M. Lorenzetti, William Stuart Dols, Andrew K. Persily, Michael D. Sohn
CONTAM, a multizone model for predicting whole-building airflow and contaminant transport, has been updated to improve the speed and accuracy of its transport calculations. CVODE, a general-purpose code for solving ordinary differential equations, brings

Using multi-zone modeling of particle transport to support building design

February 21, 2013
Author(s)
Dong H. Rim, Andrew K. Persily, Lance L. Wallace, William S. Dols, Steven J. Emmerich
As building design and operation changes to meet the goals of sustainability, it is critical to address indoor air quality issues such that indoor environmental conditions are maintained. Among the indoor air contaminants of concern in this context are

Multi-zone Modeling of Size- Resolved Outdoor Ultrafine Particle Entry into a Test House

December 11, 2012
Author(s)
Dong H. Rim, Andrew K. Persily, Lance L. Wallace, William S. Dols, Steven J. Emmerich
Airborne particle transport into buildings is important for human exposure to particles and associated health effects. The present study investigated the entry of size-resolved outdoor ultrafine particles into a test building under three different

Volatile Organic Compound Concentrations and Estimation of Optimal Source Strengths to Achieve a High Level of Acceptance Indoors using Multi- Zone Simulation

June 5, 2011
Author(s)
Helena Jarnstrom, William Stuart Dols, Cynthia H. Reed, Andrew K. Persily
This study investigated the possibility of identifying chemical pollutant profiles and concentration levels that result in a high level of acceptance indoors. In addition, a multi-zone simulation tool, CONTAM, developed by the National Institute of

Development and Demonstration of a Method to Evaluate Bio-Sampling Strategies Using Building Simulation and Sample Planning Software

June 10, 2010
Author(s)
William S. Dols, Jayne B. Morrow, Andrew K. Persily, Brett Matzke, Landon Sego, Lisa Nuffer, Brent Pulsipher
response and recovery sampling approaches and technologies, the U.S. Department of Homeland Security (DHS), along with several other agencies, have simulated a biothreat agent release within a facility at Idaho National Laboratory (INL) on two separate

Development and Demonstration of a Method to Evaluate Bio-Sampling Strategies using Building Simulation and Sample Planning Software

June 1, 2009
Author(s)
William S. Dols, Jayne B. Morrow, Andrew K. Persily, Brett Matzke, Landon Sego, Lisa Nuffer, Brent Pulsipher
In an effort to validate and demonstrate response and recovery sampling approaches and technologies, the U.S. Department of Homeland Security (DHS), along with several other agencies, have simulated a bio-terrorist release within a facility at Idaho