Water them down! Easy money
Water them down! Easy money
I don't think you have been around enough to make such judgements against the members of this site. This is the best hvac site on the net.
Technically speaking, the guys this site are very good. The ones that aren't, are learning.
a small number of them tend to be " opportunists in offense". But that is to be expected. (personal thing)
The greater number of guys at this site are not just Do it yourselfers.
THEY HAVE YEARS OF PROFESSIONAL TRAINING
And I promise you, the guys running this outfit are as good as any and far better than most! You cannot find better.
And I am not a butt kisser. I've already ran afoul of some of them.
Most on here take this profession seriously, that is the reason they are on here. You are not going to find a more condensed grouping of helpful thoughts and truths on hvac anyplace else.
Let's make this even simpler.
If a split air cooled condenser was intended to be listed, what design changes would it have.
For starters a stainless steel find and coils....and frame and pan.
Air cooled condensers are designed to be air cooled. If you want evaporative cooling, get a small cooling tower and shall the water treatment and blow down controls, then install a water cooled heat pump out better yet a chiller.
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Some of you are really trying to make this much more difficult than it is. Just take the condensate line that you already have going from the indoor coil to the outdoor unit area and direct that water onto the outdoor coil. No additional pumps, no nozzles, just reroute the condensate line.
If you want to get a little better control of when condensate is introduced to the coil, have the condensate empty into a container with a solenoid valve connected to a 1/4 tube with holes in it run around the top of the outdoor coil. The container fills up whenever condensate is running out of the condensate drain, but doesn't allow that condensate to flush over the coil until the unit turns on and the container solonoid valve is opened.
soooo........How much bucks are we saving with all this?
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Using condensate, I save money in energy, the system is able to handle the load better and there is no issue with any minerals or scale.
A lot of window shakers have condensate splashers built onto the condenser fan motor .
Spraying water on to a dry coil is a bad idea, but misting the incoming air is not, and need not cost a lot.
I use the finest cheap domestic irrigation mister nozzle $1.00 (a few depending upon the size), a simple irragation sol valve which is controlled by a simple klixon, either ambient or liquid temp. All the parts for well under $100.
The spray mist is pushed approx 12inch away from the coil, so the whole air flow (low velocity) passes through the mist. The coil does not get wet. any excess water just fall to the ground (along with concentrated TDS and free TDS becomes a invisible dust and passes straight through)
As far as energy saving, 1C drop in SCT (condensing temp) reduces power by approx 3.5%. The system does need to kept in a reasonable equilibrium, hence the kilxon.
A good idea badly applied does not make the idea itself bad, which does seem to be the case here on this thread.
A nice side effect is sometimes on really big misters, you get a secondary cooling effect with the water evaporating off the roof. Locally, some walmarts have sprinkler heads set up on their roof. When ambient temps rise sufficiently, they spray down their roof with water.
The water does not hit coil, so mineral deposits are not the issue. if you look at the link in a previous post, they are cooling the air not spraying the coil.
Have seem many building spray roofs to reduce heat infiltration. I believe the Germans use a totally wetted roof (for a similar effect)