Sustainable refrigerator
We can’t continue to rely on electrical appliances powered by fossil fuels, so I tried to come up with an alternative: a sustainable fridge which is ‘powered’ by dirty water. My prototype consists of two metallic cylinders, one inside the other, between which a locally-sourced material such as sand or wool is packed tightly before being soaked with water. When the fridge is placed in a warm environment, the sun’s energy causes the outer part of the fridge to ’sweat.’ Water evaporates from the sand or wool and heat energy is transferred away from the inner cylinder, which therefore becomes cooler. The design is ideal for use in the developing world because it doesn’t require electricity and can be built using barrels, spare car parts and ordinary household materials. Unlike previous pot-in-pot coolers, the contents are kept dry and hygienic because the water does not come into contact with the product.
What an amazing person - and what a wonderful idea - promote this as much as you can folks! A free easy and simple to botch together gizmo that brings refrigeration to the outbacks of beyond in any hot country - it's so beautiful I am going to make one next summer - might make a garden full of them! Thank you Emily - I love your thinking - love love love it! It tingles me to my toes - their is a wonderful future facing the World with people and thinking like you and yours
I am just off to find the video of one of these being built in Africa!!!! (-:
That's me pepped up for the evening!!
BUZZ!!
