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: 17

Discussion Forum

Seeking a Flow Hood

Started by George Matthews Apr 10. 0 Replies

Affordable Manometers?

Started by Isaac Savage. Last reply by Pete Stoermer Feb 15, 2016. 3 Replies

Looking For A Retrotech Duct Tester ?

Started by Chris Schiewer. Last reply by Jamie Kaye Dec 16, 2015. 1 Reply

Buying Used Equipment

Started by Nick Semon May 18, 2015. 0 Replies

Used Blower Doors?

Started by Isaac Savage. Last reply by Cameron Millard Jan 16, 2014. 3 Replies

Latest Activity

Profile IconAvery T. Phillips, Sarah Burger, Troy Spindler and 2 more joined Home Energy Pros Forum
11 hours ago
David Butler replied to Brad Cook's discussion Too many Heat Pump Water Heaters in a basement?
"theoretically, let's say you perfectly isolate the HPWH from a heat source. The HPWH's…"
yesterday
David Butler replied to David Butler's discussion How would you insulate this roof?
"Interesting idea. Commercial roof on a slope! Typical density for roofing spray foam is 2.5 to 3.0…"
yesterday
Profile IconRandy Kinnison, Breanna Detwiler, Jeff Farlow and 7 more joined Home Energy Pros Forum
yesterday
Summer Redman added a discussion to the group Job Board
Thumbnail

Hiring 2 Training Specialists in Champaign-Urbana, Illinois

The Applied Research Institute (ARI) at the University of Illinois at Urbana-Champaign is seeking…See More
yesterday
Summer Redman joined Diane Chojnowski's group
Thumbnail

Job Board

This group is for posting jobs related to all aspects of the home performance industry including…See More
yesterday
Stacie Bagnasco replied to Evan Mills's discussion Dirty solar panels
"This is a great idea. I clicked on your discussion because it made me remember that I forgot to get…"
yesterday
Kirsten Richnavsky posted an event
Thumbnail

rCloud - The Future of Testing at Your Office or Home

October 18, 2017 from 2pm to 3pm
Integrating rCloud as an essential part of your RESNET QA process.Retrotec’s rCloud app is here,…See More
yesterday

Photos

Loading…
  • Add Photos
  • View All

© 2017   Created by Home Performance Coalition (HPC)   Powered by

Badges  |  Report an Issue  |  Terms of Service