Articles by Brian J. Dolin

Basic Thermodynamics for Refrigeration and Air Conditioning

By Brian J. Dolin
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Thermodynamics, as with most concepts in science and physics, is most accurately described using mathematical equations. This article is an attempt to simplify these concepts.

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Electric Expansion Valve Control

By Brian J. Dolin
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Electronically controlled electric valves have been accepted for years in larger applications, just as chillers have been, and have proven to add efficiency to the systems. The key to the increase in efficiency is due to their ability to control superheat to a low, stable setting.
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2014 Energy Efficiency Forum

Highlights from the 25th annual Energy Efficiency Forum in Washington, D.C.


NEWSMakers: Joseph Groh

Joseph Groh, an industry veteran boasting 35 years of HVAC experience, discusses the 2008 bicycle accident that cut his career tragically short, and how the Joseph S. Groh Foundation is his way of giving back to the construction trade. Posted on Aug. 22.

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NEWS 08-18-14 cover

2014 August 18

Check out the weekly edition of The NEWS today!

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Prohibiting HFCs

EPA is proposing a rule that would prohibit some HFCs in select refrigeration applications. Do you agree with this move?
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2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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