if someone owns 10 acres of farmland, and converts his machinery to biodiesel, how much of those 10 acres would he have to use to grow bio-fuel crops to get enough homemade fuel to work the rest of his land?
>>996112
yes
42.
7.61
some estimates state that biodiesel requires the same amount if energy to acquire as it contains
so it would take 10 acres
however that might have changed now, this information was from years ago afaik
if you're into bio diesel, I would recommend making a hobby refinery and finding a way to get waste vegetable oil from restaurants, they're in those weird cans/domed things behind any restaurant
you can make thousands of gallons of biodiesel with very little effort and machinery, on less then an acre, but you won't be able to sell any
>>996135
realy its more of a hipothetical question
a friend and his family hawe some land, about 10/15 hectares, so we had this talk about how much of his own land hed have to use to grow, say sunflover or rapeseed or something that gets you biodiesel, in a hypothetical situation in which he can proces the seed and refine the oil on his own, if he wanted to have a sort of semi-closed system where the energy budget 'runs itself', they only ever grown corn and hemp there so have no real experience with that kind of cultures
Biodeisel is generally grown from seasonal crops, so you just get one crop a year. One failed harvest and you're fucked.
Go full diy? Plant a bunch of fast, continuous growth willow. Convert your farm equipment to steam power and run the boilers on woodchuck from seasoned willow.
Obviously you'll need to come up with a way to run a wood chipper and a kiln from the previous years harvest.
But honestly it's a fucking waste of time that gets nothing but bragging rights on some eco show
>>996112
0.0 acres if you convert it all to raised beds and used crop rotation to use no-till methods. If you are going to grow corn, you probably won't want to pick it by hand, but seriously, picking 10 acres of corn by hand isn't that difficult and you only have to do it once a year.
Basically, what I'm saying is the answer is really determined by what you are growing for your biomass and what amount of use you are using your equipment for as well as the length of time involved. Not to mention the type of biofuel you want to use.
I also don't recommend you use biodeisel. Instead do biomethane. You will get methane gas to power your equipment, cook/heat with, and you get high nitrogen fertilizer as the waste product. The nice thing about biomethane is that all the crop waste, animal/human waste, yard waste, etc can be put into the digestor and turned into fuel and fertilizer.
From:
http://www.uaex.edu/publications/pdf/fsa-1050.pdf
>>996112
>crops
>not algea
>Algae cost more per unit mass than other second-generation biofuel crops due to high capital and operating costs,[9] but are claimed to yield between 10 and 100 times more fuel per unit area.[10] The United States Department of Energy estimates that if algae fuel replaced all the petroleum fuel in the United States, it would require 15,000 square miles (39,000 km2), which is only 0.42% of the U.S. map,[11] or about half of the land area of Maine. This is less than 1⁄7 the area of corn harvested in the United States in 2000.[12]
https://en.wikipedia.org/wiki/Algae_fuel
>>996112
Figure out a way to make bio out of bamboo and I think you're set anon.
>>996179
Or use woodgas and skip the steam
>>996316
Oh yea! Could you store that easily or would you need to run a compressor?
Gotta be careful whenever you make synthgas (wood gas, fuel gas, coal gas whatever you wanna call it). It's a cool way to get extra energy out of burnable biomass but storage with off the shelf stuff becomes an issue (look up rockafire explosion explosion).
