Due to the long distances between towns and the low overall population density, it is not cost-efficient to implement recycling programs in the far reaches of Namibia. As a Peace Corps Volunteer in Rundu, Kavango East Region, it was difficult to see all of the aluminum cans and other recyclables scattered in trash piles all over town, when there is such economic potential. In my first post on recycling, I highlighted some uses for glass bottles.
As a hiker and backpacker (trekker), I was familiar with alcohol stoves made from aluminum cans, but never tried one until our friend Ryan made one for us as a gift. His stove is featured in the photo above and, as Ryan is an engineer, it is pretty advanced for this genre of stoves. I was looking for a technique to make these can stoves not requiring as many materials or tools and found this great tutorial on YouTube.
The other nice thing about the stoves in the YouTube video is that the pot can go directly on the stove itself so you don’t need a separate pot stand, but elevating it a bit would probably be more efficient. A windscreen is also definitely recommended for these types of stoves. I’m going to research making a windscreen out of aluminum cans cut into strips as shown below. I’m hoping to run a short course sometime next month at COSDEC to demonstrate how to make these stoves.
These can stoves are also great because the fuel is just denatured alcohol or methanol (sold sometimes as HEET), which is available all over the world in hardware stores, grocery stores or pharmacies. The fuel burns cleanly, especially if your stove is well-made and produces nice blue flames.
This Instructables link has an interesting idea to use aluminium can rectangles as roofing shingles. I’m not going to attempt aluminum smelting in my remaining time in Namibia, but I think it would really have potential especially since the molten aluminum can be cast in sand (of which there is plenty here). Here is an example of how to make an aluminum foundry. Here is another good post on how to cast a bowl out of molten aluminum.