Articles by Joanna Turpin

The Big Payback

By orchestrating a number of smaller energy-efficient retrofits, the University of Utah generated enough savings to finance a central chilled water plant for its health sciences campus. By Joanna R. Turpin
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Floating Casinos Require Ace Work

A casino always entails special design requirements. Put that casino on a ship, and you’re dealt a doubly challenging hand.
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Direct Steam Injection Humidification: Is It Safe For Building Occupants?

Lately, there has been some concern regarding the corrosion-inhibiting chemicals used in the boiler system and inhaled as steam. Read on to investigate the concerns, benefits, and options.
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Schools Turn To Performance Contracting For Help (March 2001)

There have been numerous reports lately showing that schools are in dire need of structural and mechanical repairs, yet there are often no funds to fix the problems. For many schools, performance contracts may be the solution.
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How To Control A Chiller (February 2001)

No, it's not with a whip and a chair, even though that may be tempting at times. Today's chillers are precision machines that rely on microprocessor-based electronic controls to not only provide more flexibility and reliability, but also to interact with just about any building automation system that's available.
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The Desiccant Debate Continues (January 2001)

Although oversizing of conventional systems is still a culprit at large, and certain desiccant advantages seem clear, some engineers would most like to get their hands on independent research proving exactly when desiccants are the superior dehumidification option.
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When Should You Consider A Desiccant System? Part 2

There is a lot of buzz these days about desiccant dehumidification systems: Where should they be applied? How should they be specified and designed? In the first of two parts, the author finds that after talking with the experts, the answers to such questions can still be a little murky.
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Is The Next Millennium Bugging You? (September 1999)

The end of the year is near and with it a lot of fear about what 2000 will bring - power outages, water shortages, lost bank accounts? It appears that most in the hvacr world aren't too worried.
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You've Come A Long Way, Baby (October 1999)

Gone are yesterday's unreliable and inaccurate sensors and controls. Today's devices, including temperature, humidity, and CO2 sensors, are not only highly accurate and dependable, they also last longer and provide buildings with greater comfort and energy savings.
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Designing and Commissioning The Pentagon (November 2000)

The renovation of the Pentagon is well underway, including two revolutionary aspects for the federal government: The remaining Pentagon project will be design-build, and the whole structure will undergo extensive commissioning.
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Engineered Systems Magazine

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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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