Engineered Systems - April 2008 - (Page 20)

When it has to be stainless, it has to be A-J! The experts in stainless steel clean air systems for CaseInPoint VAV diffusers critical to green agency’s Platinum building For over 30 years, StopWaste.org has been helping Alameda County, CA, residents and businesses adopt sustainable consumption and disposal habits. Therefore, there was no question that the 14,000sq-ft, two-story Oakland, CA, building that it purchased and renovated for its ofﬁces had to be green. The question was how green. Using the USGBC’s LEED® Green Building Rating System, the initial goal was a LEED Silver rating. As the project progressed, however, StopWaste.org decided to aim for the highest possible rating, LEED Platinum. An important part of achieving this goal was earning all of the possible LEED credits for optimizing energy performance. GOING FOR ALL 10 To achieve the 10 energy performance points, StopWaste.org asked Rumsey Engineers, an Oakland-based ﬁrm with extensive experience designing low energy building systems, to make the building and its HVAC systems far more efﬁcient than a standard building — using at least 40% less energy than a standard building built to meet the stringent state Title 24 energy code. Energy modeling was an important design tool used to optimize the building’s energy performance. Maximizing the mechanical system efﬁciency required close coordination with the building architects, Komorous-Towey Architects, and StopWaste.org. Modeling showed that combining increased wall insulation levels with highperformance windows allowed for both large system control zones and also eliminated the need for a perimeter heating system. The investment in the envelope allowed the design team to completely eliminate reheat; this yielded signiﬁcant construction cost and energy savings. The building was divided into four master zones: perimeter and core ofﬁces on the second ﬂoor, plus perimeter ofﬁces and a large boardroom on the ﬁrst ﬂoor. The three ofﬁce master zones are conditioned using a high-efﬁciency packaged DX and gas heat rooftop AHU with a variable-speed fan. The master zones are subzoned with 29 Acutherm model ST-HC and two model TK-HC Therma-Fuser thermally powered VAV diffusers. operating rooms plus: • Custom fabrication • Rush deliveries A-J Manufacturing offers a complete line of custom and standard stainless steel air distribution products, all designed and manufactured to offer durable, dependable and low maintenance performance necessary for hospitals, labs, wash down areas and more. What’s more, with our state-of-the-art manufacturing capabilities, we can also offer you the industry’s shortest lead times for custom orders. So for continuous linear, security grilles, modular diffusers and much more, contact A-J Manufacturing today! A-J Manufacturing 800-247-5746 • www.ajmfg.com FREE INFO: 13 As part of the quest for a LEED® Platinum certification at this public agency building, Rumsey Engineers was challenged to earn all 10 LEED energy credits on a small budget. A simple system utilizing operable windows, an optimized shell, and diffusers met the challenge. FREE INFO: 49 20 En gi neer ed S y stem s April 2008 http://StopWaste.org http://StopWaste.org http://StopWaste.org http://www.ajmfg.com http://StopWaste.org

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

Engineered Systems - April 2008 Contents Editor’s Note Back2Basics HVAC Challenge Case In Point Commissioning Building Automation Energy Wiz HVACR Designer Tips This Time, Water Cooled Was All Wet Cleanroom Design In 10 Easy Steps It's Not The Heat, It's The Humidity Issues & Events Computers and Software Products Glossary Classifieds Advertiser Index Tomorrow’s Engineer

Engineered Systems - April 2008

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