- No system is ever lossless. I haven't yet seen how this is also a solution to global warming. That CO2 has to go somewhere, and the "C" of course means less renewable resources. But I guess the next answer is to try to suck CO2 out of the air. How many watts will that cost per cubic foot?
- Richard links to a link for a technology from Changing World Technologies, which is near where I used to live (and also near the Clear Mountain Zendo, appropriately named because it's located on the fabled Hempstead Plain, and to see the Zendo, you'd have to go to a part of town that brings the phrase "light industrial zoning" to mind.) Changing World claims an 80% efficiency Joule-wise, but that's only 1/2 the story. The other 1/2 is that it takes 200 tons of stuff to make 500 barrels of oil, (assuming 80 tons of oil assuming I've done the math right -see this link) from poultry waste.
- There are approximately 20 (19.4 according to this source) gallons of gasoline per barrel of oil.
- Assuming the 200 tons of stuff per day is what the poultry plant produces as waste, this is bascially a few moderately busy gas stations' amount of gasoline.
- US oil demand per day is 20 million barrels a day.
We do have a heck of a lot of garbage, but do we have enough to meet the demands of US drivers?
And how much of a cut will the Cavalcante family want?
Seriously, I suspect the efficency of the process in terms of garbage per barrel - or lack thereof- might surprise us in a hundred years or so as to how really finite our reources are. But, admittedly, I haven't done all the math.