Cooling & Chillers

The Global Debate On The Phasedown Of HFC Refrigerants

By Robert Wilkins
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Where do things stand in the never-boring world of refrigerant evolution? An industry veteran looks at life since the Montreal Protocol, a range of alternative refrigerants, and the political climate around the issue. For more than one reason, he writes, it is beneficial to keep up on the details and lead this refrigerant ‘charge.’
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ASHRAE creates five categories for liquid-cooled datacom environments

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“2011 Thermal Guidelines for Liquid Cooled Data Processing Environments” creates data center classes for liquid cooling that can enable fulltime economizers for a number of applications in many climates, according to according to Don Beaty, chair of the Publications Subcommittee of ASHRAE’s Technical Committee (TC) 9.9, Mission Critical Facilities, Technology Spaces and Electronic Equipment.
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Educating by Example

By Sergiu Pelau P.E., LEED and Markus Yakren P.E., LEED
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Through a flexible design incorporating radiant heating and cooling, demand ventilation, energy recovery, and VAV, Manhattan’s Cooper Union leads its class in sustainable performance in classrooms, labs, and beyond.
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ASHRAE creates five categories for liquid-cooled datacom environments

A new whitepaper that serves as the first vendor-neutral thermal guideline is available for free download.
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A new whitepaper that serves as the first vendor-neutral thermal guideline is available for free download.
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Large Scale Geothermal Heat Pump Systems

By Stephen Hamstra P.E., ASHRAE HBDP LEED AP,
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With the help of advances in intelligent controls and a shift in design mindset, these systems can steer buildings toward smaller equipment sizes and associated savings. Review three projects and consider the benefits of keeping an upcoming project in the loop.
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Case in Point

Plastic cooling tower prevents tenant meltdown during heat wave

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Last September, on what would normally have been a mild autumn day, Southern California was blasted by a record-breaking heat wave with temperatures spiraling upwards to 116°F in the Los Angeles basin. The heat was far above the normal highs, which would typically be in the mid-70s.
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BIM and Educational Projects

By Matthew Dunbar AIA ASSOC. and Rebecca Krull Kraling AIA, LEED
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In this overview of building information modeling, the authors review how BIM helped in three different projects, often with particular usage- and efficiency-based HVAC demands. While BIM’s space management skills can reduce costly changeorders and building design “clashes” ahead of time, in at least one instance, using BIM actually influenced the HVAC strategy for the better, too. See how HGA Architects and Engineers has used this to become a “model” firm.
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Tomorrow's Environment: We Get Startup Sheets For Terminal Equipment Why Not Commissioning Sheets?

By Howard McKew, P.E., C.P.E.
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Here’s a manufacturer’s competitive advantage waiting to happen.
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Building Oversight Management: Revisited

By Larry Clark LEED® AP
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A lot has happened since the author’s 2008 article. It’s prime time to revisit expectations for BAS and chiller optimization controls, and then have a look at several of today’s options for anyone managing chilled water flow to wring the last drop of efficiency out of a system.
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Case In Point

Grocery store goes green with innovative refrigeration system

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Using a CO2 cooling system reduced this organic grocery store’s refrigerant use by 60% to 65% a year. Arizona-based Sprouts Farmers Market is not only a leader in natural and
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9/25/14 2:00 pm EDT

Test Anxiety? Learn How and When to Test Your Standby Generator

This webinar will discuss generator reliability, testing, and troubleshooting from a practical perspective and make recommendations for a comprehensive inspection and testing program.

Engineered Systems Magazine

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2014 September

Check out the September 2014 issue of Engineered Systems, with features on radiant panels, refrigerant flow systems, and much more!

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