Engineered Systems - October 2008 - (Page 3)

c 42 46 52 contents FEATURES L 36 Living Wild! It It’s typical for a chiller to contribute to occupant comfort. It’s less typical for a chiller to ensure occupant survival, but le such is the mix of occupants at The Wild Center in the Adirondacks. In this year’s Engineering Award-winning project, the array of HVAC challenges and circumstances is as wide as the variety of environments recreated “in nature” for two-legged visitors to experience. All in all, New York’s first LEED®-certified museum brings the outside in with nimble but powerful design. October 2008 ENGINEERING AWARDS WINNER 36 — by Jan Gasparec, P.E., and Timothy Krawetz, P.E., LEED® AP CHILLED BEAMS C Chilled Beams In Chicago Th The 250 South Wacker building reportedly houses a first for American HVAC installations. That might sound exotic, but as you’ll America see, the autho delivers the story behind this retrofit in a matter-of-fact author see manner that belies the step forward taken by the owner and project team. Da beams may never be quite as popular as Da Bears in Chicago, but they’re bound to spread as other project embrace the concept’s advantages. 42 — by Thomas C. Posko, P.E. HY HYDRONICS / BOILERS Phoenix Convention Center: P On The Rise O As part of the city’s move to drastically upgrade its ability to host major gatherings, the boiler/hydronics design had to be ready for large gather crowds and surprisingly cold days. By combining simplicity with flexibility, the new system moves the project closer to LEED certification and boasts a range that can offer service from exhibit hall to symphony hall. DEPARTMENTS Advertiser Index . . . . . . . . . . . . . . . . . . 85 Back2Basics. . . . . . . . . . . . . . . . . . . . . 14 Building Automation. . . . . . . . . . . . . . . 30 Case In Point . . . . . . . . . . . . . . . . . . . 18 Classifieds . . . . . . . . . . . . . . . . . . . . . . 82 Commissioning. . . . . . . . . . . . . . . . . . . 28 Computers & Software. . . . . . . . . . . . . 68 Editor’s Note. . . . . . . . . . . . . . . . . . . . . . 6 Glossary . . . . . . . . . . . . . . . . . . . . . . . . 81 HVAC Challenge. . . . . . . . . . . . . . . . . . 16 HVACR Designer Tips . . . . . . . . . . . . . 34 HydroTech . . . . . . . . . . . . . . . . . . . . . . 32 Issues & Events . . . . . . . . . . . . . . . . . . 70 Letters . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Literature & Catalogs . . . . . . . . . . . . . . 78 Products . . . . . . . . . . . . . . . . . . . . . . . . 74 Tomorrow’s Environment . . . . . . . . . . . 86 w w w. esmag a zine . c o m 3 — by John Vastyan IAQ / VAV / DESIGN Cold-Climate HVAC Challenges C Oct October gets us to the cusp of winter in a lot of the country. The cold-weather threats to good performance are country outnumbered only by the possible strategies to combat them. Here, the authors look at humidity, economizers, pipe and coil insulation and placement, and more as they assess the design opportunities and pitfalls once the temperature takes a dive. — by Richard D. Miles, LEED® AP, and Steven P. Furgeson, P.E., CEM, CHFM, LEED® AP HUMIDIFICATION 57 Humidification Strategies For H Data Centers & Network Rooms D Cont Controlling humidity in IT environments is essential to achieving high availability. This article explains how humidity affects equipava ment, and why humidity control is required. The author offers quantitative design guidelines for existing and new computing installations, and he also explains the hidden costs associated with over-humidification. — by Tony Evans http://www.esmagazine.com

Table of Contents Feed for the Digital Edition of Engineered Systems - October 2008

Engineered Systems - October 2008 Contents Editor’s Note Letters Back2Basics HVAC Challenge Case in Point Commissioning Building Automation HydroTech HVACR Designer Tips Special Insert: Engineer's Technical Library Fall 2008 Living Wild! Chilled Beams in Chicago Phoenix Convention Center: On The Rise Cold-Climate HVAC Challenges Humidification Strategies For Data Centers & Network Rooms Special Advertising Supplement: Tabb Talk Computers & Software Issues & Events Products Literature & Catalogs Glossary Classifieds Advertiser Index Tomorrow’s Environment

Engineered Systems - October 2008

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