Case In Point

Perfect pitch: Swiss team sings praises of heat transfer fluid at new arena

A state-of-the art hydronic earth-warming system was built beneath the surface of the lawn to keep the field at AFG Arena in St. Gallen, Switzerland play-ready. (Photo courtesy of AFG
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Filters help get hospital cooling towers out of intensive care

The installation of intake filters eliminated sludge build-up, which in turn prevented strainer and/or blowdown valve clogging that had occurred in this hospital’s cooling tower systems. Additionally, the installation allowed
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Fire protection retrofit changes hospital expansion's prognosis

This hospital had three different fire protection systems from three manufacturers, which created confusion whenever there was a fire event or emergency situation. An intelligent analog/addressable fire alarm control panel
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Green archival room design preserves both papyrus and the environment

The design process for the mechanical system at this University of Michigan library took more than a year and resulted in a custom designed precision A/C system that safeguards ancient
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Hydronic system holds humidity at bay in Curaçao office building

Temperature cascades, demanding absolute humidity conditions, high energy costs, and power supply parameters presented some logistical challenges to the designers of this tropical office building. A single-pipe hydronic system helped
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A sweet solution: Rental chillers help save one million dollars' worth of sugar beets

Despite the snow in this picture, company officials at this sugar beet processing facility faced a warm spring in 2007 and worried their large crop would thaw and spoil before
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Heat pump-based HVAC and control system contributes to bright IdeA(s)

Would you believe that this building was a 1960s-era windowless concrete bank? Now it houses an engineering consultancy and uses renewable energy from photovoltaics to meet 100% of its energy
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Sustainable building authority walks the walk when promoting green products

What appears to be a single-family residence is actually a university’s “recycled” live-in classroom and center for sustainability education. A 119-gal, 130,000-Btuh solar water heater played a key role in
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Polypropylene pressure piping system improves server reliability

These pipes carry 40° chilled water to cooling units throughout the Utah State University Data Center. No insulation is needed to prevent condensation because polypropylene is a natural insulator.When Utah
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Control valves pave the way for DOT's variable primary system

While a variable primary system was in keeping with the high-efficiency standards of a General Service Administration building, the load and the various chiller sizes complicated control at this headquarters
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2014 November

Check out the November 2014 issue of Engineered Systems and the cover story: District Chilled Water Systems Design: A Tale Of Two Footprints.

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