I found this picture a while ago. It baffled me for a few years. It didn’t make any sense to me. How could this possibly work and how could I adapt it?

I finally figured it out! The problem though, is that ammonia is dangerous and I wanted to make something that was portable. It uses no electric, its recharged by the sun and gets to about 40-45 degrees Fahrenheit. 

In comes zeolite! Zeolite is a material that can absorb water vapor under mild pressure that produces a cooling effect. It’s much easier to use and also much, much safer. 

The idea isn’t completely fleshed out but here is how I thought of making it and how it could be completely portable. 

Take two empty paint cans. A gallon one and quart one. 
Get some copper flex pipe. 
Get some Zeolite 13x 10A. 
You’ll need some fittings to attach to both cans. 
You could get some Mylar to contain it. 
You could make the outside inflatable and shape it into a box or something. Use your imagination. You could also make it more permanent. Do what you want. 

If you’re looking for complete portability you could wrap the copper around the smaller can. You could fold the outside up and then place the copper around the small can and put everything inside the larger gallon can. 

Almost forgot, the zeolite goes into the larger gallon can and water in the smaller. You can get a fresnel lens. You could probably get some type of inflatable clear ball. Idk what’s out there. 

Tell me things! What say you all?


Zeolite powered portable refrigerator.