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Posted by on August 7, 2007, 11:06 pm
> On Tue, 07 Aug 2007 07:28:27 -0700, z wrote:
> > I think my central A/C spends 99% of its energy dehumidifying the
> > house. The water just goes to water the shrub planted next to the
> > compressor outside. Why couldn't it at least be sprayed on the
> > condensor coils?
>
> That happens to a certain extent in window air conditioners.
I doubt anywhere near 99% of the energy goes to de-humidifying. And
if you were to design a system to use water to achieve any significant
benefit in additional cooling of the condenser, I would think you
would have to have a lot more water than the amount generated by the
AC system. And with that type system would come more complexity,
issues of corrosion, cleaning, etc.
As another issue, there was a thread here last year about whether it
makes much difference putting the condenser in the shade, via some
well placed trees, etc. I would think it would and have also seen
that recommended many times, to reduce energy usage. But in the
course of that discussion, there wqs an actual study referenced that
showed it apparetly made very little, if any practical difference,
whether the condenser was in direct sunlight or shaded.
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Posted by on August 7, 2007, 11:13 pm
> I doubt anywhere near 99% of the energy goes to de-humidifying.
It's not.
> As another issue, there was a thread here last year about whether it
> makes much difference putting the condenser in the shade, via some
> well placed trees, etc.
It doesn't, as there's not adequite 'cooler' air to make a difference.
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Posted by Stormin Mormon on August 8, 2007, 9:00 am
Window AC are designed to spray the water on the condensor coils.
What usually happens is that the tray is full of water all the
time, and grows mold and slime. Since the condensor is wet, every
particle of dust for miles around sticks to it. And since it's
humid out (at least in NY State where I am), there is little
evaporation, so there is little advantage to the cooling.
It's an interesting idea, but I don't see water on the condensor
being very useful.
--
Christopher A. Young
You can't shout down a troll.
You have to starve them.
.
: I think my central A/C spends 99% of its energy dehumidifying
the
: house. The water just goes to water the shrub planted next to
the
: compressor outside. Why couldn't it at least be sprayed on the
: condensor coils?
:
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Posted by terry on August 8, 2007, 4:16 pm
On Aug 8, 11:00 am, "Stormin Mormon"
> Window AC are designed to spray the water on the condensor coils.
> What usually happens is that the tray is full of water all the
> time, and grows mold and slime. Since the condensor is wet, every
> particle of dust for miles around sticks to it. And since it's
> humid out (at least in NY State where I am), there is little
> evaporation, so there is little advantage to the cooling.
>
> It's an interesting idea, but I don't see water on the condensor
> being very useful.
>
Hence Legionniares disease!
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Posted by John McGaw on August 8, 2007, 4:03 pm
z wrote:
> I think my central A/C spends 99% of its energy dehumidifying the
> house. The water just goes to water the shrub planted next to the
> compressor outside. Why couldn't it at least be sprayed on the
> condensor coils?
>
If the atmosphere is very humid, when you'd get the most condensate, you
would derive the least benefit from it since the high humidity would
slow water evaporation. The opposite would happen when the atmosphere is
dry. It seems that either way there would be little or no benefit derived.
--
John McGaw
[Knoxville, TN, USA]
http://johnmcgaw.com
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