Re: Timing!

Here, if you were near the river (or ocean), you'd likely be in a flood 
zone, which would not be desirable. If you were further from the river, 
pumping costs and right-of-way costs would probably negate much of the 
savings.

Here, we take in cool air during the winter months. Our winter humidity 
is about what we'd want anyways. We have excess heat about 360 days a 
year (on the rare occassion when it's -20f, temperature in our 
datacenter drops into the 60f range instead of 70f.) 

I'd like to figure out a way to use the heat we waste. We have multiple 
split system air conditioners.

> Well, my idea was to use water/water heat exchange, ie don't cool against 
> the air, cool against the 10C water flowing by in the river.
> 
> It's not really applicable here as datacenter have excess heat 24/7/365, 
> but it's becoming more and more common here to use underground water that 
> you heat in the summer (when it's warm outside, warm being +20C or over) 
> as you need to cool the building (ie cool building by heating the water), 
> then in the winter when you need to heat the building, use the hot water 
> and cool it down again.
> 
> The Stockholm airport claims 80% power reduction for heating/cooling by 
> doing this, payback for investment was supposedly 5-6 years.
> 
> -- 
> Mikael Abrahamsson    email: swmike-uVNFFiCRr/[email protected]

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