Frank Aragona just posted two podcasts on his Agroinnovations web site that cover on-farm biodiesel production, and the thinking and model behind Farm Hack and open source hardware.
They can be found here http://agroinnovations.com/podcast/2014/05/06/episode-139-on-farm-biodiesel/
and
Here http://agroinnovations.com/podcast/2014/05/20/episode-140-farm-hack/
Frank's other podcasts are terrific resource and I highly recommend checking them out! http://agroinnovations.com/
The tool is based in a Microsoft Excel® spreadsheet and employs a simple, easy to use interface to collect cost factors. Helps determine cost per ton of seed, cost per ton of meal, cost per gallon of oil and cost per gallon of biodiesel. Development supported by the Vermont Sustainable Jobs Fund, University of Vermont Extension, USDA Northeast Sustainable Agriculture, Research and Education, and a load of pioneering oilseed farmers who shared their production data and opinions to make it better.
This is a placeholder for the Arduino system developed for the biodiesel trailer...
Need A farm produced fuel that fits within crop rotations and provides for the flexibility and portability of diesel fuel, without the global infrastructure, while providing an energy balance that is similar or superior to draft power. The modular approach lends itself to easier open source modifications and iterations. The mobile approach enables a more flexible infrastructure. The cogeneration capability and on board air compressor enable the unit to operate as back up power for a farm operation as well as provide high volume shop air.