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Evaporative cooling wall /swamp cooler

 
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Hey,
I live in Athens and it´s getting crazy hot here but dry. I am renovating my new apt. Its 65 open space and I still don´t have ac but the price of electricity here is ridiculously high..
I am thinking about building a swamp cooler. I don´t want to do it just to discover its not that effective so I thought I run the idea in this forum.
I thought of building the wall from clay bricks (the hollow kind with lots of surface area) and some old roof tiles. it would be 130cm wide on 190cm high.
I want to make it like a large box with the reservoir at the bottom and using a pump to move the water and two box fans at the bottom directed upward to blow air to the narrow chamber behind the bricks which would create pressure for the air to go out the front.
I would like to make the whole thing on wheels so I could move it around.

I seen people building it also without a fan, for greenhouses ext. I have crazy wind here coming from my windows in the east and north east. I don't want it directly on the windows so I'm not sure if I can rely just on wind...

Anyway, would it be effective for the place? I like to use less electricity+ its too dry here for me and my plants+ I think it could look so sweet and I like the sound of water..
 
master rocket scientist
Posts: 6748
Location: latitude 47 N.W. montana zone 6A
3625
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Hi Pjeter;
Yes, Swamp coolers do work but they are not A/C.
We use a swamp cooler, as it is hot but very dry here.
We also use sun-blocking shades on the windows, they help quite a bit.
It works well for most of the day but later in the evening it just can not keep things cool anymore.
At that point, the sun is going down and we open doors and windows and set a large fan outside on the covered porch blowing the slightly cooler air indoors.
Currently, the temperatures are in the upper 90s to lower 100sF and the humidity is 20% or less
Luckily we are in the mountains, so at night, it drops to the upper 50s to lower 60s, a real reprieve!

Swamp coolers are much better than stand-alone fans but they certainly are not on par with A/C.
I do not know how well your home made  cooler will perform but it has to be better than nothing.
 
pjeter schornstein
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Does it stop working because the humidity goes up? I bought a temperature + humidity meter to make sure. Its 23:00 now and humidity is at 20 percent with 37 Celsius.
Do you use a commercial one?
 
thomas rubino
master rocket scientist
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Location: latitude 47 N.W. montana zone 6A
3625
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Hey Pjeter;
I do have a smaller portable commercial swamp cooler, it can be rolled from room to room.

My home is a 100 year old log cabin with a South and West exposure.
There is no insulation or thermal break.
The sun beats on the logs all day and by evening that heat has built up and transferred to the inside.
Nothing but cooling temps outdoors will cool those logs off.

However, by 23:00 it has cooled down to the low twenties Celsius here with 20% humidity.
As we make all our electricity, the swamp cooler, and fans are off all night only the windows remain open.

Your design might benefit by using burlap for the water to soak into and the fans to blow the cooling air into the room.
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