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IEQp1 in international settings

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Fri, 01/29/2010 - 23:58

One of our consultants emailed me the following about doing this credit internationally: The issues that can be problematic on international projects pertain primarily to natural ventilation strategies. Natural ventilation is not addressed adequately by ASHRAE 62 criteria (which establishes distance and window/area ratio requirements), particularly for projects that base substantive natural ventilation design on other criteria, such as "effective opening" area to floor area, using various (and often combined) types of ventilation, such as thermal chimneys, etc. Also, it bears mentioning that many countries have higher volume ventilation requirements than ASHRAE 62, but equivalence comparisons are sometimes required since ASHRAE 62 can be unfamiliar to non-Americans.

Thu, 02/11/2010 - 06:35

Putting in the 4% effective opening area to floor area also by no means garantees successful natural ventilation. That's why it is usually accompanied by the AM10 supporting documentation or a simulation: multi-zone nodal bulk air flow &/ CFD

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