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passive convective cooling

Submitted by Che Guevara on Sun, 2006/06/18 - 14:43.
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passive convective cooling

Figure 26. By using undergrade air chambers, significant sensible cooling can be obtained. attribution: azsolarcenter.com what do you think?

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passive cooling

Submitted by parrotheadnica on Mon, 2006/06/19 - 12:09.

i'm going to go with straw bales. keeps the place cool, goes up quick, materials are relatively cheap, and gives you nice deep windowsills.

that's my two cordobas melanie

Cool Tubes

Submitted by markwayne on Mon, 2006/06/19 - 01:27.

Hey Jim,

The problems that I think one would encounter with "cool tubes" in lower warmer elevations in Nicaragua are that first..the places that these are used with success are places were the ground temperature is significantly lower than the "air" temp. If one constructed such a system anywere near the coast I think the ground temp would be much to warm to add any significant cooling.

Second problem..mold/bacteria buildup ..insects..kritters..dam hard if not imposible to clean? Would one really want to breath moldy air..

Jim, I as you am very interested in Passive cooling...I am taking a look at "roof ponds" and cooling towers. Cool tubes sound like they have potential but the more I read about them..in practice they have had problems depending on location and other..the mold/ bacteria thing got me off this one

hey, how about

Submitted by Che Guevara on Mon, 2006/06/19 - 05:59.

salt water lining the bottom of the tube? won't the salt keep out mold and the water would cool the air?

i'll post....

Submitted by Che Guevara on Mon, 2006/06/19 - 05:57.

something on cooling towers. i saw something somewhere.

thanks for the ......

Submitted by Che Guevara on Sun, 2006/06/18 - 19:01.

two responses. i've got 15 years before i move down there. maybe by then, some of these ideas must be in use. i'll post other ideas i find.

Depends where you're digging...

Submitted by catahoula_fan on Sun, 2006/06/18 - 18:52.

Our property is on the isthmus, between Nandaime and Rivas. Roger's worker's dug down 18 feet and he took a reading with an infrared temperature gun. Temperature never varied more than three degrees from the surface air temp.

It should work if

Submitted by Former NL Member on Sun, 2006/06/18 - 16:26.

If you're not near a volcano with lots of heat underground . . .

If you can dig into the bedrock deep enough to find cool temperatures . . .

If there's a reasonably constant breeze . . .