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Articles by Joanna Turpin

The Big Payback

June 28, 2001
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

May 2, 2001
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?

March 23, 2001
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)

February 27, 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)

January 18, 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)

January 5, 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

November 21, 2000
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)

November 21, 2000
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)

October 20, 2000
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)

October 19, 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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How to Calculate Backup Power Supply Requirements for Your Facility

On-Demand This webinar reviews how to determine power requirements of facility loads; electrical characteristics and impact of different types of loads such as large motors and UPS systems on power supply sizing; acceptable power sources and other constraints applied by building codes; and how software tools can be used to simplify the process of calculating backup power requirements.  

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Design Flaws

Following up on Howard McKew's April "Tomorrow's Environment" column: Have you ever thought twice about reporting problems with another firm's design? What did you do?
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