Unformatted text preview: Quantitative Models Jacob Vitko, Taylor Mann, Mikaela Elkins,
Group B4-B Ethanol
Quantitative Model 1. 100 x (acres cropland) x (gal eth/acre of corn) / gal equiv.
annual U .S. gasoline demand (gal) 2. Assumes all available U.S. cropland converted to growth of corn.
3. Variables: a
cres of cropland, annual US gas demand, gallons of ethanol per acre
of corn, gallons equivalent
4. Variable values
1 Hyperlink Value 2 Hyperlink Value
Used Acres of Cropland 90
89 Gallons of Ethanol
Yielded from 1 Acre of
Corn 423 https://tinyurl.co
m/yd97gycl 462 https://tinyurl.co
m/ycxh3ph5 462 Gallon Equivalent of
Ethanol 0.73-0. https://tinyurl.co
m/y8bmwcsu 0.7194 https://tinyurl.co
m/ybuw4l67 0.73 Annual U.S. Gasoline
billion Results: https://tinyurl.co
347 Results: If all available U.S cropland was converted to grow corn, then the percent of
annual US gas demand that could be met by ethanol from corn is 38.5%. Biodiesel from Soy
1. 100% × (acres of cropland) × Gallons of oil
Acre of soy
Gallon Equivalent Annual U S Gasoline Demand
2. Assume all available cropland is converted to the growth of soybeans
3. Variables: Acres of cropland available in the US, gallons of oil yielded from 1
acre of soybeans, gallon equivalent for biodiesel, annual US gasoline demand
4. Variable Values
Value 1 Hyperlink Value 2 Hyperlink Value Used Acres of
Cropland 915,000,000 https://www.agcensus.
nd.pdf 922,095,840 https://www.quora.
armland 918,547,920 Gallons of
from 1 Acre
of Soy 66 http://cropwatch.unl.ed
u/bioenergy/soybeans 57 https://www.uaex.e
F/FSA-1050.pdf 66 Gallon
for Biodiesel 0.96 https://www.thoughtco.
arisons-85636 1.047 http://www.energy.
ge.html 1.047 Annual US
Demand 143,370,000,000 https://www.eia.gov/to
&t=10 142,350,000,000 http://www.nacsonl
00 Result 40.53110333 Results: If all available cropland in the US was converted to grow soybeans, then the
percent of annual US gas demand that could be met by biodiesel fuel from soybeans is
40.53% Biodiesel from Algae
1. Acre of ponds needed for algae = U .S Diesel Consumption (gal)
Gal. of Biodiesel 55( Acre of soy grown ) 2. Assume that diesel consumption and acres of soy grown are annual. Assume
that the equivalency of biodiesel from soy to biodiesel from algae is 1:1.
3. Variables: U.S. diesel consumption, gallons of biodiesel that can be produced
from an acre of soy.
4. Variable values: Value 1 Hyperlink Value 2 Hyperlink U.S. Diesel
Consumption 143,370,000,000 https://tiny 142,000,000,000 https://tin
ceu6a4b 55 (Gallons
one acre of
soy) 3135 Result https://tiny 2750
2m5yfp Used Value 1.42685
E+11 http://ww 2942.5
48491079.01 Results: The amount of acres that would needed to be produced in order to produce
sufficient amount of algae is approximately 48,500,000 acres of algae. Synthetic Fuel From Coal Quantitative Model
1. Years Left Using Coal= (T otal amount of coal)(Gallon equivalent)
(Gas consumption) + (Coal used f or energy)
Y ears 2. Assume that only United States coal reserves are used. Assume that coal is
used exclusively for energy and fuel. Assume that only the United States’ current
technology for extraction is being used.
3. Variables- Total amount of coal, gallon equivalent of coal to synthetic fuel, Gas
consumption, coal used for energy
4. Variable values:
Value 1 Hyperlink Value 2 Hyperlink Used Value Total amount
of coal (tons) 254.9 billion https://tinyurl.
com/kpxuju3 259 billion https://tinyurl.
com/y79l7jhv 254.9 billion Gallon
ton) (1 barrel
=42 gallons) 63 https://tinyurl.
o 84 https://tinyurl.
com/y9k3jesz 63 Gas
(gallons) 143.37 billion https://tinyurl.
com/l9z6klx 142 billion https://tinyurl.
com/ceu6a4b 143.37 billion Coal used for
6 https://tinyurl. 836,613,036
3 836,613,036 Result 111.359 Results: The United States coal reserves would be depleted after 111.359 years. ...
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- Fall '16
- The Land