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Search Publications by: Steven Emmerich (Fed)

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Displaying 176 - 200 of 303

U.S. Commercial Building Airtightness Requirements and Measurements

October 12, 2011
Author(s)
Steven J. Emmerich, Andrew K. Persily
In 1998, Persily published a review of commercial and institutional building airtightness data that found significant levels of air leakage and debunked the “myth” of the airtight commercial building. Since that time, the U.S. National Institute of

Indoor Air Quality in Energy Efficient Buildings

August 29, 2011
Author(s)
Andrew K. Persily, Steven J. Emmerich
Building energy efficiency has been an important goal for decades. Since the energy crisis of the 1970s, much has been learned about how to improve energy efficiency in buildings. More recently, given increases in energy costs and concerns about the

Ultrafine Particles: 3 Years of Measurements in the NIST Test House

June 5, 2011
Author(s)
Lance L. Wallace, Andrew K. Persily, Steven J. Emmerich, Dong H. Rim, Chi P. Hoang, Cynthia H. Reed, Wang Fang, M E. Greene, Jung I. Choi
NIST has supported research characterizing ultrafine particle sources and dynamics for more than a decade. Over 90 % of ultrafine particles (UFP) produced by stovetop cooking on both gas and electric stoves were 10 nm. Using the NIST test house

ASHRAE Standard 62.2: What is it, whats new, and whos using it

March 25, 2011
Author(s)
Steven J. Emmerich
Readers of the November 2010 IAQ Applications column by Bud Offermann learned about a large, residential IAQ study that highlighted the importance of mechanical ventilation in U.S. homes. ASHRAE Standard 62.2-2010 Ventilation and Acceptable Indoor Air

Indoor Air Quality in Sustainable, Energy Efficient Buildings

August 15, 2010
Author(s)
Andrew K. Persily, Steven J. Emmerich
Building designers, contractors, owners and managers have long been challenged with providing quality indoor environments at a reasonable energy cost. Current efforts to improve building energy efficiency, including goals of netzero energy use, are

Modeled Infiltration Rate Distributions for U.S. Housing

July 18, 2010
Author(s)
Andrew K. Persily, Amy Musser, Steven J. Emmerich
A set of 209 dwellings that represent 80 % of U.S. housing stock was used to generate frequenc distributions of residential ventilation rates. The set of homes is based on an anal sis of the 1997 U.S. Department of Energ s Residential Energ Consumption