Program will include:
Case Study in Duct Leakage - Art Morrell, Chairman of the Board of SouthernTier Fabricators, will provide a full report on duct leakage for a newly installed HVAC System for the Bill and Melinda Gates Hall at Cornell University. The project was fully, mechanically BIM coordinated, all duct was tested to current SMACNA standards and the results were documented and summarized for both spiral and rectangular duct systems. The data will show the ducted system leakage from AHU Units to inlets of VAV & chilled beams. Gates Hall is the future home of Cornell's departments of Computer Science and Information Science.
Effects of Commissioning - Daniel Forino, PE, LEED AP BD+C, Sustainability Engineer for Horizon Engineering Associates, LLP,no will lead an interactive discussion on the commissioning process and review applications where spiral duct could be used in design applications to help eliminate common deficiencies found.
Technical Update - Bob Reid, SPIDA's Technical Director, will update members on the latest technical information from SPIDA and other industry organizations.
November 12, 2013 - Physical testing of our flat oval sample duct has been completed. The lead researcher, Matt Daugherty, has been crunching numbers for several weeks now. At this stage it is very important for us to meticulously document everything from the testing phase. First of all, this testing represents a pool of knowledge that may have additional uses down the road. Second, the scrutiny in this documentation phase will help determine any problems that need to be addressed. We have a test rig in place, a lot of sample flat oval duct, and a team of graduate students that have been involved from the start. If we need additional testing, now is the time to get it done. We expect to have enough data to review within the SPIDA technical committee within the next few days. Any SPIDA members that want to be part of this review should contact me.
The next step in our process is to form an industry conference committee. It will be made up of SPIDA members, building owners, engineers, contractors and other affected parties. Their job will be to set acceptable deflection limits for flat oval duct. We want them to consider all consequences of deflection and reach a consensus that is based on flat oval duct, not simply applying round or rectangular standards to it. Our testing will tell us how flat oval duct deflects. Our conference committee will tell us how much deflection is okay. From there it is a fairly straightforward process to derive our new standard with tables giving gauge and reinforcing requirements for a range of positive and negative pressures. Our goal is still to have the project completed and a standard published for presentation to our membership at the SPIDA Annual Meeting in the spring.
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