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Articles by Joanna Turpin

No Small Assignment

May 1, 2005
When the University of Arizona embarked on its integration project, it signed up for one tough course in controls, vendors, and protocols. The syllabus also included cogeneration, thermal storage, and even condensate return systems. Show your work by installing metering, then reconcile the BAS with the life safety system for extra credit, and that's the class. By Joanna R. Turpin
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The Tailor-Made Temperature Drop

March 29, 2005
Some may think that portable cooling is basically bringing in the unit and flipping the switch. However, the applications range from flower warehouses to symphony spaces and beyond, and their respective cooling solutions need to suit those different needs. One of these companies even decided to buy instead of rent, while another facility found that portable heating was the coolest fit of all. By Joanna R. Turpin
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Integrating BAS With Life Safety Part II

March 1, 2005
As discussed in January, integrating fire alarm, smoke control, and other life safety systems with BAS can be expensive and complex, which is why many system designers are often more comfortable keeping building systems as separate entities. Endusers, however, are starting to ask why their systems can't be integrated, citing the potential benefits of interoperability and shared resources. This month, we conclude by looking at the protocol issues and the numerous benefits that can come from integrating life safety and BAS. By Joanna R. Turpin
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The Art Of Noise

January 31, 2005
When it comes to managing noise levels in VAV systems, there's more there than meets the ear. How much is too much? That's a good place to start. After that, silencers, duct liners, and vinyl flexible duct are but three tools at your disposal. Elsewhere, designers may face a less predictable predicament: What is too little noise? Consider these angles to master the sound of success. By Joanna R. Turpin
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Integrating BAS with Life Safety

December 28, 2004
The options for connecting these two important systems vary from old-fashioned hard wiring to a single, integrated workstation. While the latter offers simplified notification expenses or a reduction in necessary parts, integrated systems also entail code requirements and a need to balance streamlined performance with an adequate level of system independence. By Joanna Turpin
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What's New With Standard 62.1?

November 29, 2004
Plenty, as it turns out. As the next ASHRAE meeting approaches, a new version of the ventilation document is almost ready to go, with new wording in some places and new requirements in others. Get the big picture on the thinking behind the adjustments and the process. By Joanna R. Turpin
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Jail Benefits From Chiller Retrofit

September 29, 2004
Outdated equipment - ranging from failing chillers to fan motors that can only be described as repeat offenders - victimized the Lerdo Correctional Facility. Furthermore, budget constraints prevented better efficiency enforcement. However, armed with a performance contract, Lerdo handcuffed its problems by gutting and rebuilding the central plant, installing new controls, and more. By Joanna R. Turpin
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A Solution For Thermal Pollution

August 31, 2004
Using nearby water for cooling in industrial applications and then returning that water to the source is a traditional maneuver, but it can also damage local aquatic life and violate EPA regulations. Learn the costs and benefits of a few cooling towers configurations, along with tips for dealing with blowdown and effluent within the facility itself. By Joanna R. Turpin
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Green By The Sea

July 29, 2004
From a mix of natural and mechanical cooling to rainwater-supplied bathrooms, the Natural Resources Defense Council's new Santa Monica office features predictably forward-thinking sustainable design. Here's the story of how the Robert Redford Building tells the story of its efficiency. By Joanna R. Turpin
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Feeling Better Than Ever

June 29, 2004
When a nonprofit rehab facility in Boise needed to expand, officials elected to stick with the previous building's geothermal approach. The new version, chosen largely for its simplicity and cost advantages, heats the hospital's 156,000-sq-ft space well. In fact, from special heat exchangers for therapeutic pools to other touches including filtration, the whole system coalesces to provide comfort for the convalescing. By Joanna R. Turpin
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