I am working on fixing a motor that had a leak in it and spread gases in the production room. The motor was used in the final step of making charcoal from agricultural waste, turning into solid briquettes that could be used in a stove.
Here I am helping to make a cover for one of the kilns. I designed this cover and we are making it from leftover scrap metal. The cover will help improve the carbonizing process and prevent more of the gases from harming the kiln operator.
Here I stand in front of a gutter system that I designed and built with another team member. This will help them collect water which is needed in charcoal production, and decrease their costs due to buying it from the city before.
I am working to saw a piece of wood that is to be used in the solar dryer, a project that every person on our team helped to design and build. It will increase the speed that the briquettes can be dried.
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Charcoal Research and Building in Uganda

Over the fall of 2013 I learned about charcoal made from agricultural waste, its benefits and how to improve the production of it in Uganda. With four other students and a researcher we communicated with groups in Uganda and prototyped models of various tools to assist in their production process. Over the month of January we all travelled to Uganda to see current production methods first hand and to implement new methods and improvements to old methods while working with the Ugandans. We designed and built many things including a solar dryer, a greenhouse, a gutter system, new kilns, a briquette molder and more. While there we also tested many combinations of various fuels and stoves to test the emissions and determine a preferred combination based on health and environmental factors. In the spring of 2014 I continued on with this project and pulled together the data we took while in Uganda and began to prepare it to be able to use it in a journal article.

McCall Huston
Student Cambridge, MA