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Search Publications by: Steven Emmerich (Fed)

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Displaying 126 - 150 of 157

Source Strengths of Ultrafine and Fine Particles Due to Cooking With a Gas Stove

April 1, 2004
Author(s)
L A. Wallace, Steven Emmerich, Cynthia H. Reed
Cooking, particularly frying, is an important source of particles indoors. Few studies have measured a full range of particle sizes produced during cooking. In this study, particles in 124 size bins from 0.01 mm to 2.5 mm were measured continuously over

Air and Pollutant Transport From Attached Garages to Residential Living Spaces

December 1, 2003
Author(s)
Steven J. Emmerich, Cynthia H. Reed
NIST is conducting a study on the indoor air quality (IAQ) impacts and engineering solutions related to the transport of pollutants from attached garages to residential living spaces. Natural or fan-induced pressure differences across air leakage paths in

Impact of Natural Ventilation Strategies and Design Issues for California Applications, Including Input to ASHRAE Standard 62 and California Title 24-Report on Task 4.4.3a and 4.4.3b of CEC-EEB RMT Project

October 1, 2003
Author(s)
Steven J. Emmerich, Andrew K. Persily, William S. Dols, James W. Axley
Natural ventilation has the potential to reduce the energy required for cooling and ventilating commercial buildings while still providing acceptable thermal comfort and indoor air quality. While a recent surge of interest in Europe has advanced natural

Recommendations for Application of CO 2 -Based Demand Controlled Ventilation Including Proposed Guidance for ASHRAE Standard 62 and California's Title 24

September 29, 2003
Author(s)
Andrew K. Persily, Jim Braun, Steven J. Emmerich, Kevin Mercer, Tom Lawerence
Carbon dioxide (CO2) based demand controlled ventilation (DCV) has been proposed and implemented for many years as a strategy for increasing energy efficiency by providing outdoor air ventilation rates based on actual occupancy rather than design occupancy

Comparison of Measured and Predicted Tracer Gas Concentrations in a Townhouse

August 1, 2003
Author(s)
Steven J. Emmerich, Steven J. Nabinger, A Gupte, Cynthia H. Reed, L A. Wallace
To further validate the use of the multizone airflow and contaminant model, CONTAMW, experiments were performed in an occupied 3-story townhouse in Reston, VA. A tracer gas, sulfur hexaflouride (SF6), was manually injected within one room of the house and

LoopDA -- A Natural Ventilation System Design and Analysis Tool

August 1, 2003
Author(s)
William S. Dols, Steven J. Emmerich
The Loop Equation Design Method has been proposed for sizing ventilation airflow components of natural and hybrid ventilation systems. While the loop design method has been demonstrated on a limited basis, the method has been automated in order to better

Validation of CONTAMW Predictions for Tracer Gas in a Townhouse

August 1, 2003
Author(s)
Steven J. Emmerich, Steven J. Nabinger, A Gupte, Cynthia H. Reed
To provide additional validation data for the multizone airflow and contaminant model, CONTAMW, experiments were performed in an occupied 3-story townhouse in Reston, VA. A tracer gas, sulfur hexaflouride (SF 6), was manually injected within one room of

Integration of Airflow and Energy Simulation Using CONTAM and TRNSYS

July 1, 2003
Author(s)
Timothy P. McDowell, Steven Emmerich, J B. Thornton, George Walton
The impact of infiltration and ventilation flows on the energy use in commercial buildings has received little attention. One of the reasons for this lack of study is that the commonly-used programs for estimating the energy use of buildings do not

LoopDA-Natural Ventilation Design and Analysis Software

April 1, 2003
Author(s)
William S. Dols, Steven J. Emmerich
The Loop Equation Design Method has been proposed for sizing ventilation airflow components of natural and hybrid ventilation systems. While the approach has been demonstrated on a limited basis, the method has been automated in order to better evaluate

Modeling Moisture in Residential Buildings with a Multizone IAQ Program

July 1, 2002
Author(s)
Steven J. Emmerich, Andrew K. Persily, Steven J. Nabinger
Multizone airflow and contaminant transport modeling is a valuable tool for researchers and others studying indoor air quality (IAQ) problems in buildings. Although water vapor is not typically thought of as an indoor contaminant, multizone IAQ modeling

Airflow and Aerosol Transport Modeling in Hart Senate Office Building

May 23, 2002
Author(s)
Steven J. Emmerich, Cynthia H. Reed, Andrew K. Persily
A modeling study of airflow and contaminant transport in the Hart Senate Office Building (HSOB) was performed to obtain insight into the transport of anthrax spores within the building after a short-term release in October 2001. This analysis employed an

Natural Ventilation Review and Plan for Design and Analysis Tools

August 1, 2001
Author(s)
Steven J. Emmerich, William S. Dols, James W. Axley
Natural ventilation has the potential to reduce first costs and operating costs for some commercial buildings while maintaining ventilation rates consistent with acceptable indoor air quality. While a recent surge of interest in Europe has advanced natural
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