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

Bob Blanchette replied to Hal Skinner's discussion Any success getting landlords to energy upgrade a single family rental unit?
"The landlords don't want the improvements done even if they don't have to pay for it?…"
13 hours ago
Hal Skinner posted a discussion
13 hours ago
Hal Skinner replied to Hal Skinner's discussion Any success getting landlords to energy upgrade a single family rental unit?
"Hi Bob, The tenants all say they cant do anything to the building.  We would get referred…"
14 hours ago
Tom White commented on Tom White's video
Thumbnail

The Future of Housing - And How Airtightness Can Help

"Ben's Kickstarter documentary, The Future of Housing, was fully funded. The grand premiere…"
23 hours ago
Tom White's video was featured

Simon Sinek: How great leaders inspire action

TED Talks Simon Sinek has a simple but powerful model for inspirational leadership all starting with a golden circle and the question "Why?"
23 hours ago
peter chang's discussion was featured

Programmable tstat for electric baseboard?

Ok, just want to throw this out there. I live in the high desert, 6800' or so. My house is pretty…See More
23 hours ago
Tom White posted a video

Simon Sinek: How great leaders inspire action | Video on TED.com

TED Talks Simon Sinek has a simple but powerful model for inspirational leadership all starting with a golden circle and the question "Why?" His examples include Apple, Martin Luther King, and the Wright brothers ... (Filmed at TEDxPugetSound.)
23 hours ago
Michael Dunseith posted a photo
yesterday

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service