02-07-2015, 04:09 AM
By using old fryer grease to fuel their furnace, they eliminate the massive energy consumption of a typical metal casting operation.
No, they are using a somewhat green fuel. It still takes a massive energy consumption. A solar furnace might be workable, at least to preheat the crucible.
No, they are using a somewhat green fuel. It still takes a massive energy consumption. A solar furnace might be workable, at least to preheat the crucible.