Re: rack power question

adriancreative.net.au (Adrian Chadd) writes:

> This thread begs a question - how much do you think
it'd be worth to do
> things more efficiently?

this is a strict business decision involving sustainability
and TCO.  if it
takes one watt of mechanical to transfer heat away from
every watt delivered,
whereas ambient air with good-enough filtration will let one
watt of roof fan
transfer the heat away from five delivered watts, then it's
a no-brainer.  but
as i said at the outset, i am vexed at the moment by the
filtration costs.
-- 
Paul Vixie

Paul Vixie wrote:
>
> this is a strict business decision involving
sustainability and TCO.  if it
> takes one watt of mechanical to transfer heat away from
every watt delivered,
> whereas ambient air with good-enough filtration will
let one watt of roof fan
> transfer the heat away from five delivered watts, then
it's a no-brainer.  but
> as i said at the outset, i am vexed at the moment by
the filtration costs.
>   
Have you made any calculations if geo-cooling makes sense in
your region 
to fill in the hottest summer months or is drilling just too
expensive 
for the return?

Pete