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CI-2009 IEQc3.2:Construction IAQ Management Plan—Before Occupancy

outdoor delivery rates in a naturally ventilated space

After receiving the project's review we are asked to provide outdoor delivery rates. The project was flushed out with a 2,000 CFM fan for 48 hours with windows and a door open providing a flushing with 5,700,000 cubic feet of outdoor air (5,000,000 cubic feet is required for the project's area.) We are attempting Option 1, Path 1 and in compliance with internal temperature and humidity. What is the accurate way to provide outdoor delivery rate as the building uses natural ventilation?

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Thu, 03/21/2013 - 19:39

Vera, I don't understand the question. If you used mechanical ventilation for the flush-out, then you can do the calculation based on the mechanical equipment. If you relied on natural ventilation for the flush-out, I'm afraid that's pretty complicated, and I'm not sure qualifies as a "flush out."

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