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Modulating Economizers: Recovering Heat, Recovering Profit
June 9, 2011 by Matt Baker · Leave a Comment
By Steen Hagensen
In most boilers today, heat exchange devices, or economizers, pre-heat the incoming feed water with the boiler’s own exhaust gases to maximize efficiency. Over the years, improvements have been made to economizers that now have better heat transfer rates than ever, but it is still only very few boilers that can benefit from their installation. Atmospheric and fan-assisted boilers don’t create a powerful enough draft to force flue gases through the economizer, which makes them unsuitable for economizer installations.
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A Rising Trend: Green Elevator Initiatives
March 9, 2011 by Matt Baker · Leave a Comment
By Jon Sedey
The development of the elevator opened up the discovery of skyscrapers and high-rise buildings. People, along with goods and services were able to reach new heights never seen before. “Vertical transportation” was now possible and forever changed the urban fabric. Instead of building out, cities were building up to conserve space and local resources. However, as green initiatives become an integral part of today’s development projects, elevator companies are implementing strategies to retrofit current elevators into green and attractive spaces.
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