Allison A. Bailes III, PhD Archives

Allison A. Bailes III, PhD

Company name: Energy Vanguard, LLC

Position: Founder and President

Dr. Allison Bailes is a building science expert who has spoken at many conferences, written several informative articles on The Energy Vanguard Blog, and published a book, A House Needs to Breathe… Or Does It? He has received a formal education in physics and has taught that subject at the high school and college levels. Nowadays, he applies that subject knowledge to his personal areas of interest: high-performance and green buildings.

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A Tale of Two Latents

When the quiz or the teacher asks what “latent” heat is, there is generally some reference to it being hidden heat, which is what the word “latent” means. We then learn that it is heat energy transferred that results in a change of state rather than a temperature change. Later on, we hear a lot […]

Solving Subcool

I teamed up with Ty Branaman to design an intuitive way for techs to solve some of the “what should it be?” questions in the HVAC field. The topic for this sheet is subcooling. Subcooling is a measurement of the temperature DECREASE of a liquid below its saturation (mixed liquid/vapor) temperature at a given pressure. […]

Contactor Alternatives and Upgrades

Our HVAC equipment can’t run without the contactor coil, but contactors can develop problems with age and during high-voltage electrical events. Contact pitting is unmistakable, and it’s unfortunately all too common in areas where bugs can get into the coil and fry on the contacts. Factor in problems with the utility, such as brownouts and […]

Is Undersizing Really a Problem?

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A Layered Approach to Indoor Air Quality

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Solving the Ventilation Puzzle

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Dr. Allison Bailes Discusses His New Book

Do Houses Need to Breathe? w/ Allison Bailes

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Proper Design For Ductless and Ducted HVAC Systems

In this podcast episode, Bryan, Chad, John, and Allison discuss proper design for ductless and ducted HVAC systems, especially mini-splits. They also discuss potential future improvements to equipment and duct designs. Mini-splits are smaller than traditional HVAC units, so they make zoning a bit easier. However, load calculation plays a huge role in equipment selection […]

Friction Rate and Duct Design w/ Dr. Bailes (Podcast)

This episode is very exciting to me because we get to have Dr. Allison Bailes on the show. Today, he shares his knowledge about friction rate and duct design. Allison got his start teaching college-level physics before getting into the building design industry. If you have a forced-air system that blows heated or cooled air […]