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Technology & Strategy
08 April, 2009
This low resolution map shows fresh air cooling in North America.
I applaud your effort to promote airside economizer and present tools for people to utilize in determining where it can be effective for them. Unfortunately, although this map is very pretty, it is also extremely misleading.A quick read of this map leads one to believe that areas such as Houston have the same or greater potential for airside eonomizer then areas such as Seattle. Anyone who is familiar with the climates of Houston and Seattle would have difficulty believing this assertion.Having used airside economizer for many years in Seattle, I can tell you that the map does not accurately reflect the potential in this area. In our new data center, we intend to use airside economizer (and evaporative cooling, where necessary) for essentially the entire year.My guess is that the people who put together the map failed to take into account the common practice of mixing outside air with return air from the server room to create proper temperature and humidity conditions within the space.
Posted at 01:00 PM on April 22, 2009 by John Sasser
Excellent comments by John Sasser. A committee of experts from member organizations met in April to discuss changes to the map and tool. A new map that reflects common economizer practices, such as mixing return and supply air streams and humidification of cool, dry air, will be completed and posted in Jun 2009. Thanks for the comments and suggestions.
Posted at 06:12 PM on June 01, 2009 by mark monroe
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