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HVAC Blog

The HVAC Blog is the place for conversation and discussion about building HVAC control, energy conservation and efficiency, heating, and cooling. Here, you'll find everything from application ideas, to news and industry trends, to hot topics and cutting edge innovations.

Low GWP Refrigerants — Understanding GWP, GHG, ODP, and Climate Change

Posted April 29, 2017 12:00 AM by Engineering360 eNewsletter

See an engineer's perspective on global warming and climate from man-made gases and refrigerants. While the current U.S. administration may choose to deny the existence of climate change, most scientists agree that human impact has contributed to global warming and the world must control greenhouse gases.


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Sensor Technologies Support "Next-Generation" Temperature Measurement

Posted December 24, 2016 12:00 AM by Engineering360 eNewsletter

Melexis has announced two new sensing technologies for simplified integration of temperature measurement into applications that enhance safety, efficiency, and convenience. The company considers the 32 � 24 pixel device to be a good fit for such safety and convenience applications as fire prevention systems, smart buildings, and HVAC equipment.


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VFD Technology Drives HVAC Efficiency

Posted March 24, 2016 12:00 AM by Engineering360 eNewsletter

Operating motors at reduced speed and horsepower to meet actual load conditions is an integral part of evolving HVAC codes and standards. The need to reduce flow under part-load conditions, in fact, has made variable-frequency drives (VFD) a "de facto requirement" for many applications. This article explains how energy codes relate to motor and drive selection, with dramatic energy savings as the overriding goal.


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Heat Transfer Basics Keep Cooling Towers Running

Posted February 28, 2016 12:00 AM by Engineering360 eNewsletter

Considering how critical cooling towers are for heat transfer in facilities, one would think that they are carefully maintained. But often the lack of cleaning and preventive maintenance lead to equipment failures and interrupt production. To help keep cooling towers running,Engineering 360 offers a three-part series that starts with heat transfer fundamentals, continues into design features that maximize heat transfer, and concludes with chemistries for keeping harmful organisms like algae and fungi out of cooling systems.


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Zone in on HVAC Zoning

Posted December 02, 2015 12:00 AM by Engineering360 eNewsletter

Zoning offers huge opportunities for HVAC contractors, but it takes a lot of thinking and labor to implement it correctly. As a result, zoning remains a fairly untapped industry. Just 300,000 zone damper systems, three percent of the total market, are installed each year. So how can HVAC professionals make better use of zoning, especially zone dampers, and explain the concept and its benefits to their clients? IE3 offers four key tips for getting educated on HVAC zoning systems and then passing that information on to clients - as well as how to prepare for the inevitable avalanche of questions that will follow.


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