Prototype Update, 26 Feb 2017

 Solids System Update:

This video shows RTI International’s Gates Foundation funded toilet running a full-loop on the solid processing side for one of the first times.

The cycle, shown below in the diagram, processes human feces into a burnable material using the heat created by burning an earlier processed batch of feces. Motors, actuators, a whole lot of stainless steel (amongst other materials), Programmable Logic Control and LabVIEW, along with a lot of clever engineering and skilled fabrication have brought the system to a point where the concept has now been more than proven!

Next we move forward with reengineering and improving to reduce thermal losses, reuse extra thermal energy to start powering portions of the system, and trying to achieve a better mass balance in which we are able to dry feces at the same rate that we are able to burn it.

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