Engineered Systems - September 2008 - (Page 68)

Race To Market HIGH PURITY WATER FILTRATION SKID In planning for future use, a fully validatable, high-purity water filtration skid and piping system was designed and installed to supply 18-megaohm process water to the entire lab. In addition, the skid is capable of doubling its day-one capacity for future expansion as an additional storage tank can be tied into the system to increase the overall capacity. The system’s piping is sloped in such a way that it can be fully drained and then put back in service to minimize maintenance downtime and ensure high purity water quality. Similarly, -polypropylene piping and IR butt-fusion welds are utilized to maintain the highpurity water requirement. Other plumbing systems include a central liquid nitrogen system and a dual-source clean dry compressed air system: a central desiccant duplex skid and manifolded cylinders. Additional centrally piped utilities include CO2, helium, and nitrogen; all fed from a manifolded cylinder farm. A separate lab waste system with a sample port was installed to allow the owner to test lab waste before it ties into the sanitary waste system. PLANNING FOR THE ELECTRICAL In addition to the equipment storage pit abandoned by the former tenant — a Web-server hosting company, to the client’s delight — a robust electrical infrastructure was left behind as well. Plugging into the existing infrastructure, an expandable standby generator was designed to support growing capacity. The expandable system was also designed in a way that the addition of standby power capacity could be installed, tested, and brought online with minimal downtime. Another challenge for the electrical design was to achieve the lowest light power density possible, while maintaining acceptable light levels at the laboratory benches. Through many computer-modeling iterations, the design team and San Diego Gas & Electric (SDGE) were able to lower the light power density to just under 20% better than T-24. ON THE SUSTAINABLE FRONT With energy-efficient design at the forefront of the program, not only does the lab well exceed ASHRAE 90.1 standards but it came in just over 15% better than California’s stricter Title 24 standards. Consequently, both the owner and design team are on track to cash in on a San Diego Gas & Electric (SDGE) “Savings By Design” incentive, which should amount to $14,000 and $4,500, respectively. The team’s collaborative design effort with SDGE also included premium-efficiency motors and variable-volume chilled and hot water pumping. Now, the owner is in the process of securing a 22,000sq-ft photovoltaic system that will produce roughly 200 kilowatts of power for SDGE for onsite renewable energy. Overall, the project is expected to qualify for a USGBC rating of at least LEED®-CI Silver, and possibly Gold, if all the points are accepted. Taking a look at the current rating card, the MEP systems comprise almost a third of the points, which include: • More than 30% water reduction • 15% below the light power density standard • Optimized HVAC zoning • Enhanced commissioning • Outdoor air monitoring • Increased ventilation • System controllability • An overall 15% better than California T-24 In addition, construction management will play a key role in obtaining LEED certification via extensive construction recycling, construc68 En gi neer ed S y stem s September 2008 4/10/08 3:12:40 PM Go ahead, get more green this year. Sure, Carlyle compressors are green, but did you know using Carlyle can also lead to more green in your pocket—as much as $15,000 per store? Carlyle’s reliability means more than just a longer lasting compressor (a recent study of supermarket refrigeration racks showed our average life span is 9.9 years versus 5.2 years for the leading competitor), it means reduced downtime, less scrap waste going into the environment, and significant savings in repair and replacement costs. And for supermarket applications Carlyle offers our Compound Cooling compressor, the most energy efficient low temperature compressor in the industry. So why not consider the option that allows you to save time, money and the environment? There’s never been a better time to go green. For more information regarding Carlyle’s reliability data and the cost savings per store, visit www.CarlyleCompressor.com. Input 132 at www.esmagazine.com/instantproductinfo ESM05084Carlyle2.indd 1 http://www.CarlyleCompressor.com http://www.esmagazine.com/instantproductinfo http://www.CarlyleCompressor.com

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

Engineered Systems - September 2008 Contents Editor's Note HVAC Challenge Back2Basics Case In Point Commissioning Building Automation HVACR Designer Tips Application Checklist LEED®, Or Get (It) Out Of The Way? BACnet Supplement Race To Market Steam Humidification In Pharmaceutical Facilities Outside Air, Inside Data Centers Forecast: Increasingly Cloudy And Under Control Products Computers & Software Literature Glossary Classifieds Advertiser Index Tomorrow's Environment

Engineered Systems - September 2008

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