Re: Data Center Facility Costs

Here in Denver where the humidity is very low, we blow in outside air 
during the winter when the outside air is less than about 50 degrees. 
It's not more efficient, but it does let our compressors rest for a while.

It's also a lot quieter when the blower is off. :)

Kevin Kargel wrote:
> "opening the doors" to cool the NOC is a nice idea, but it really
> doesn't work in practice.  Here in the great white north we often have
> -20F temperatures, which you think would be great for cooling rooms, but
> in reality it turns out that to use outside air you actually would have
> to de-humidfy, heat and then re-humidify the air before you let it blow
> on your servers.  In practice letting your HVAC take care of it is
> really a less troublesome and less costly option for a small to
> mid-sized NOC.  I have often wondered about having a long tin tunnel on
> the roof to duct air through to pre-cool it without opening the
> environment, but not being an HVAC engineer I am sure there are reasons
> beyond my ken why they don't do that.  
>
> If you were just cooling people then bleeding and mixing outside air to
> lower room temperature would work, but people are a lot more forgiving
> than electronics, which worry about things like static and condensation
> and environment stability.  
>   
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