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Building On A Swedish Tradition

The American Swedish Institute looked homeward to plan for its future, using geothermal technology to achieve high-performance energy solutions in an urban setting.

April 26, 2013

By Craig Lemma and Scott Litchty, P.E.

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Reflecting a long-established Swedish commitment to environmental stewardship, the Nelson Cultural Center addition at the American Swedish Institute (ASI) in Minneapolis integrates several technically advanced sustainable features, including a high-efficiency geothermal heating and cooling system that reduces energy consumption by nearly 30 percent (based on an ASHRAE 90.1 baseline) while supporting the Institute’s diverse community programming.

Pumping and Flow Controls in Geothermal Heat Pump Systems

November 9, 2012

By Stephen Hamstra P.E., ASHRAE HBDP LEED AP,

One Comment

What are the key technical challenges and design options for optimizing a geothermal heat pump design? Review the pros and cons involved with centralized or distributed pumping, with hybrid or decoupled systems, and with the controls that can guide them.

Energy-Efficient Dehumidification In Health Care Facilities

October 31, 2012

By Jared Edwards, P.E., LEED® AP BD+C

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With a wide spectrum of specialized spaces and particular outside air requirements, a hospital’s en-ergy-efficiency efforts start when arranging which areas go where. From there, the author leaves no technology unturned — chilled beams, geothermal, DOAS, VRF, etc. — in evaluating which ap-proaches might best contribute proper ventilation and humidity in which environments, with an eye on minimizing facility energy consumption.

Geothermal Think Tank Takes On The Extraordinary Job

August 27, 2012

By Dan Vastyan

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For the massive 235,000-sq-ft Merrimack County Nursing Home in New Hampshire, the geothermal source available nearby may not have been the fountain of youth, but it did prove key to the center’s “uber-green” mechanical system retrofit. See how the companies involved brought together 16 wells, over 300 water-to-air heat pumps, and the rest of the 615-ton system to serve this 290-bed facility.

Heat pumps: ClimateMaster®

June 25, 2012

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The company has released the Tranquility® 30 Digital Series of geothermal heat pumps.

Niches And Next Year

December 2, 2011

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Don’t forget some of the best from the year that was.

Geothermal Success In The Midwest

December 1, 2010

By Kevin Pope P.E. and Dave Thiel P.E., LEED

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For a nonprofit located on the shores of Lake Michigan and an adolescent treatment center in Minnesota, geothermal heat pump systems have been an upfront investment that pays off in terms of maintenance, ROI, and effectiveness within an integrated sustainable design.

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