Research in 2005 at Lawrence Berkeley National Laboratory worked on using tracer gases for air flow testing in buildings. The LBNL study on focused on using readily available inexpensive hardware to inject and sample tracer gas—usually CO2—without the problems of poor mixing and sampling that have previously plagued this technique.

For duct air flows, in particular, problems with getting uniform mixing and sampling also made tracer gas diagnostics unreliable. That research focused primarily on improving the measurement of air flows in commercial ducts, but the techniques developed through this research can be applied just as usefully to measuring air handler flows in residential systems.

With these problems resolved, and with the cost of high-accuracy CO2 analyzers dropping, tracer gas techniques are quickly becoming both cost-effective and reliable outside of the research environment. ...

Read more from the Home Energy article, "New Developments in Air Flow Measurements" by Iain Walke...

Tags: LBNL, airflow, energy, gas, home, magazine, tools, tracer, trade

Views: 9

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Maria Lacey replied to Linda Wigington's discussion Low-cost electricity monitoring: Accuracy & Applications in the group 1000 Home Challenge
"I attempted to use an AZTech device. I have used the Watt Stopper, Watts Up Pro, Kill-A-Watt…"
26 minutes ago
Maria Lacey joined David Eggleton's group
Thumbnail

1000 Home Challenge

Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding…See More
26 minutes ago
Profile IconCynthia Sandherr, James Skeldon, Mathew Castel and 3 more joined Home Energy Pros
2 hours ago
Andy Li replied to David Parker's discussion Energy auditor equipment for sale- blower door, duct tester,combustion analyzer in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Is Minneapolis Duct Blaster still available? send some photos and how much do you ask for? my…"
5 hours ago
Andy Li joined allen p tanner's group
Thumbnail

Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
5 hours ago
Tom White posted a video

Nexus eWater System

Unlocking the Power of Grey Water: Nexus eWater System
6 hours ago
Hal Skinner replied to Richard Beyer's discussion What's your opinion on the best insulation option for your GREEN attic space?
"Mornin Richard, Maybe 'Options' might be more appropriate here?  We take the path…"
7 hours ago
Richard Beyer posted a discussion
8 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service