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-   -   Refrigeration (http://www.firearmstalk.com/forums/f51/refrigeration-89852/)

JTJ 04-30-2013 05:59 PM

Refrigeration
 
https://www.youtube.com/watch?v=ZNLPeb3qIhc

eatmydust 04-30-2013 06:17 PM

Amazing and beautiful in it's simplicity!

TLuker 05-01-2013 02:34 AM

I don't think it would work that well in high humidity, but should be great out west.

A spring is also good for refrigeration. I saw a spring house in Charleston from the early 1700's. The water flowed in the center of the room and then ran in a trough around the room and emptied on the other side. Pots would then be placed in the trough. Anything in the pots would be kept cool.

I also saw a small spring box while out in the woods metal detecting. It was about 3ft x 3ft and 2ft tall. The walls were rock and there was a rock slab covering the top of it. There was a 1ft x 1ft opening in the front. It was built right in the middle of a creek over a spring. The opening acted like a small damn and let water flow over it but it raised the water level inside. Things like milk and butter would have been stored in there. Along with a watermelon or two in the summer. I always wished I had taken a picture of that. :)

6_5swedeforelk 05-05-2013 03:39 AM

Pot in pot evaporative cooling
 
The video shows 55f inside the Empty pot in a moderate breeze, moderate humidity and 65f ambient. That is better than no cooling and a boon to arid, dirt poor Africans. The effect is similar to N. trappers placing perishables in burlap bags & setting them in any available water, or even an open hole in moss or muskeg.
In this country, if I were prepairing for "grid meltdown" my refrigeration would include the Peltier chip type coolers (Koolatron). Pull your car battery (no gas anyway) . When sizing your solar panels, allow for 4a (50w) extra load. My dad had made a windcharger in the 40's and in my early years I remember reading 8 amps on the gauge. I still have the prop for it & hope to recreate & report at a later date!

c3shooter 05-05-2013 04:04 AM

Folks in Colorado, Arizona, and similar DRY climates use a "Swamp Cooler" instead of an air condtioner- simple evaporative cooler. And when the humidity is 10%, works great! It is also the principle of a terra cotta water jug, or a canvas water bag. The African market is a desert region.

Does not work that good in the humid South- but yes, a spring house DOES wor. Not ice cold, but much cooler than the air.

6_5swedeforelk 05-05-2013 04:24 AM

Refrigeration
 
Quote:

Originally Posted by c3shooter (Post 1237224)
Folks in Colorado, Arizona, and similar DRY climates use a "Swamp Cooler" instead of an air condtioner- simple evaporative cooler. And when the humidity is 10%, works great! It is also the principle of a terra cotta water jug, or a canvas water bag. The African market is a desert region.

Does not work that good in the humid South- but yes, a spring house DOES wor. Not ice cold, but much cooler than the air.

Keeping on the thread subject "refrigeration", the swamp cooler does't really apply. My concern is that people used to a 38f fridge depending on evaporative cooling for refrigeration in an emergency situation may do more harm than good. You certainly don't want food poisoning

Vikingdad 05-05-2013 04:31 AM

3 Attachment(s)
This does work much, much more efficiently in arid climates. Here in California I can get a 25 degree drop in temperature out of the swamp cooler on a very dry day. But it does raise the humidity inside the house (which the wife doesn't like). Much, much cheaper than air conditioning.

Also, those fleece lined canteen covers, blanket covered canteens and those burlap covered water bags are designed around the principle of evaporative cooling. You must soak them thoroughly in water when filling them though. I can't tell you the number of people who thought I was crazy when I "spilled" water on my canteen covers while filling. "Heck", they would say, "now the canteen is going to get everything wet!"

A few hours later when my canteen water is cool as a cucumber and theirs is ready to make tea, they finally understood.:cool:

So, soak your canteen cover before going out!

6_5swedeforelk 05-05-2013 04:33 AM

con't (finger hit send)
 
Instead, dry & smoke all meat (soak to rehydrate), slice & sun dry fruits, corn, mushrooms, etc. Store potatoes, onions, root veggies in a cool place.

6_5swedeforelk 05-05-2013 04:56 AM

evaporative cooling... refrigeration?
 
Viking Dad, your wife is feeling the trade-named "clammy cool". Yes the swamp cooler does lower the air temp which is partly negated by the humidity short-circuiting your bodys' own cooling system! And your stated 25f drop still puts the temperature nowhere near safe REFRIGERATION temp for perishables. I stand by my original post, don't take the chance of poisioning the family!

Vikingdad 05-05-2013 05:35 AM

Quote:

Originally Posted by 6_5swedeforelk (Post 1237298)
Viking Dad, your wife is feeling the trade-named "clammy cool". Yes the swamp cooler does lower the air temp which is partly negated by the humidity short-circuiting your bodys' own cooling system! And your stated 25f drop still puts the temperature nowhere near safe REFRIGERATION temp for perishables. I stand by my original post, don't take the chance of poisioning the family!

Okey dokey artichokey.:p

I wouldn't use these methods instead of refrigeration, because they aren't. But they are a great idea to utilize if refrigeration fails. Cooling food by any methods available will extend the amount of time you can safely store it, and this includes meat.


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