In the pdf download from usgbc.org, one of the credits requirements is 'install drift eliminators that achieve minimum efficiencies of 0.2% for counter-flow systems or 0.5% for cross-flow system'.
Anyone who knows this efficiencies? What doest it mean? And how to calculate or measure?
Thanks very much.
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Jie Zhang
14 thumbs up
April 19, 2011 - 4:49 am
Compared the LEED requirement of drift eliminator the minimum efficiencies are more higher than Chinese standard requirements.
Now what I want to know is how about the average level of drift eliminator in USA.
Another question is about the maximum level of conductivity. The unit of conductivity is μS/ml, however I do some study of this value that the unit is μS/cm. I wonder that it is just a printing mistake or the 'μS/ml' needs to convert to 'μS/cm'.
Thanks and hope for answer.
Batya Metalitz
Technical Director, LEEDUSGBC
LEEDuser Expert
318 thumbs up
May 25, 2011 - 11:57 am
The credit authors have looked over this credit and believe that the units for conductivity are correct with μS/ml, with ml being equal to cm3. They are also staying with the drift eliminator values listed in the credit. This credit is currently being revised though, and we'll have a new version out in July that may help to clarify.