An acoustic calculation of a ventilation system can follow a procedure similar to: Read more linktext
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02Feb
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09Dec
“The world is now engaged in a peaceful competition to determine the technologies that will power the 21st century. From China to India, from Japan to Germany, nations everywhere are racing to develop new ways to produce and use energy. The nation that wins this competition will be that nation that leads the global economy. I am convinced of that. And I want America to be that nation.” Read more linktext
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09Dec
Delaware-based GeoEnergy Enterprises has invented a new self-contained HVAC system called the GeoSource that offers the benefits of both direct-exchange ground source heat pumps and air source heat pumps, and attempts to use each to make up for the inherent weaknesses of the other. The benefits of this type of green-building-and-green-technology development are both obvious and non-obvious, with implications that extend well beyond the field of HVAC itself and play into the generalized importance of green buildings and green technology for the Big Picture of America’s energy future. Read more linktext -
09Dec
Further proof of the benefits of LEED buildings and green building in general came from sources located on opposite sides of the globe in June and October of 2009. Read more linktext -
09Dec
We regularly talk at Just Venting about innovative HVAC solutions – variable-speed technology, high-tech sensors and building control software – to name just a few. Mostly these innovative solutions to HVAC problems are stand-alone technologies or one-time product offerings. Read more linktext
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09Dec
Boston’s Faneuil Hall, known as “The Cradle of Liberty” — and, at almost 280 years, a very old building. In the race to transition to the “clean energy economy” spoken of by President Obama, we shouldn’t get so carried away by our archetypally American fascination with the “new and improved” that we forget the value of the old. That’s the message presented by a very interesting opinion piece published in late November by The Boston Globe. Read more linktext
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09Dec
Using communications to save energy costs seems to be a key strategy for a host of new green building products and technologies. In another post we talked about a new communications protocol being developed just for HVAC gear. Now Cleantech – one of the world’s largest competition for clean technologies – has picked a winner that uses communications as a means of reducing HVAC costs. Read more linktext
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09Dec
Remember LEED? The U.S. Green Building Council’s “Leadership in Energy and Environmental and Design” program? Of course you do. So do we. We write about LEED frequently. We urge our readers to learn about it, qualify for it, and practice it. We hope to help you in that endeavor, since LEED seems to be the green building program of the future, and we’re all for that. Read more linktext
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09Dec
Central Air Conditioning Read more linktext
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