Engineered Systems - August 2008 - (Page 30)

GLASS BOX TO GRAND CASINO cooler air “puddles” at the floor level of the space because of the temperature differential. Physical objects such as tables and shelves (anything other than a solid wall) are not problematic, as the air just pools around them. When the cool air reaches a heating source such as a person, or slot machine, it warms up and rises past them, to be exhausted at the top of the space, in this case, by the existing AHUs or by natural means when possible. EH Price, the supplier, actually built a mock-up of a small area of the casino at its plant in Winnipeg to demonstrate the system’s effectiveness. All of the desired effects were tested and confirmed by both the EH Price mock-up and our energy modeling. This system provides several advantages over the UFAD or traditional overhead supply systems. The warmer supply air temperature allows for more free cooling throughout the year. When coupled with the low supply velocity, it also eliminates uncomfortable cold spots and drafts. The low velocity also creates very quiet space (not that noise is an issue in a casino gaming area). In addition, the system can provide either 100% outdoor air for better air quality or return air for energy efficiency. The system uses CO2 sensors to constantly evaluate the two options, and its automatic controls maintain good IAQ. The low velocity delivery and reduced duct losses also increase the system’s energy efficiency of the system. The displacement cooling design is a good match for the double façade, because it also works with the laws of physics rather than against them. It takes advantage of natural stratification to exhaust warm, “used” air and only conditions the lower, occupied space. This works especially well in this double-height building. The question of dehumidification arose, which is not generally a consideration in Vancouver’s mild climate. Dehumidification was built into the system by providing the heating coil Input 215 at www.esmagazine.com/instantproductinfo ESM08084Dynamic.indd 1 7/21/08 2:59:04 PM Engineers and building owners rely on Belimo to ensure reliable, energy efficient performance in their HVAC systems. The consistent quality, delivery and performance of Belimo products have solved comfort challenges, improved energy efficiencies and earned trust through long and productive life. The Pressure Independent Characterized Control Valve (PICCV) combines the proven CCV technology plus a dynamic regulator. PICCV reacts to pressure variations, performing a continual balancing function to maintain optimum system performance. Want the best? Specify Belimo > Get the details: www.piccv.com BELIMO • 877.833.1609 • www.belimo.com Input 65 at www.esmagazine.com/instantproductinfo 30 ESM07084Belimo.indd 1 En gi neer ed S y stem s August 2008 6/23/08 11:31:48 AM http://DynamicsAQS.com http://DynamicsAQS.com http://www.esmagazine.com/instantproductinfo http://www.belimo.com http://www.piccv.com http://www.belimo.com http://www.esmagazine.com/instantproductinfo

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

Engineered Systems - August 2008 Contents Editor's Note Back2Basics HVAC Challenge Case In Point Commissioning Building Automation Efficiency Incentives HVACR Designer Tips Glass Box to Grand Casino Looking Radiant In Green Mechanical Products Sourcebook Q&A: Dehumidification In Schools Building Oversight Management: M&V And More Products Classifieds Advertiser Index Tomorrow's Environment

Engineered Systems - August 2008

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