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Buildings & Construction

Indoor air quality

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  • Published Date
Displaying 301 - 325 of 431

Ventilation Design and Performance in U.S. Office Buildings

April 30, 2005
Author(s)
Andrew K. Persily, J Gorfain
Building ventilation is a primary determinant of indoor air quality (IAQ) as it impacts contaminant concentrations and occupant comfort in terms of the perception of odor and irritation. However, relatively few measurements of office building ventilation

Modeling the IAQ Impact of HHI Interventions in Inner-City Housing

March 1, 2005
Author(s)
Steven J. Emmerich, Cynthia H. Reed
The U.S. Department of Housing and Urban Development (HUD) has identified a need to improve urban housing conditions to protect children s health through its Healthy Homes Initiative (HHI). One critical area within this program is to address a wide range

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

CONTAM 2.1 Supplemental User Guide and Program Documentation

October 22, 2003
Author(s)
George Walton, William Stuart Dols
CONTAM is a general purpose, multi-zone (nodal) airflow and contaminant transport analysis tool that can be used to determine inter-zone pressure differences, airflow rates and contaminant transport in complex building structures. This tool was developed

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
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