Roberto pokachinni wrote:Any idea what the larger yellow pipe is that is in the bottom of the pile on the plastic before they start adding woody debris?
looked to me to be the drainage pipe from the bottom of the pile that they were pumping back to the top
I've been wondering if it'd be viable to seal the top, somehow, and capture the methane product.
In the Jean Pain system, he had a large tank in the center of his piles that was filled with water and a bit of the compost mix.
I've not seen that particular video. Sounds interesting. In the Jean Pain example, the heat exchange was performed by a water line in the pile, using water pressure. This heated his house, via in-floor heating, and his hot water (at 60 degrees Celsius, if I recall correctly).
I watched a video where they covered the pile and recovered the heat from the air that was being pumped through the pile with a heat exchanger. Therefore the pile was not cooled by the fresh air. Theoretically one could use the drain water to produce the anaerobic solution in a tank to produce the methane to power the blower and pumps.