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1. Energy is something essential in our lives. We need it to
work,eat,live.without energy we will not be able to do anything. Thus
energy is extremely important to us. For several centuries, fossil fuels
have been our primary source of energy and fuel. Firstly in the form of
coal,then as technology improves and progresses, distillation of crude
oil is made possible. Petro,lpg etc. However, there is one problem: that
fossil fuels are limited and will eventually run out. Given our increasing
demand for energy due to population growth and industrial needs, we
have to find other fuel sources to sustain and satisfy the needs of the
future generations. Several options have been explored including solar
power, hydropower, and wind power. During the past few decades,
another alternative emerged and has since been touted as the answer
to fossil fuels. BIOFUEL the most common form of biofuel that exists
now is bioethanol.
2.
3.
4.
5.
6. Ethanol, itself, is useful as an oxygenate additive to gasoline, which reduces
engine knocking and improves octane rating considerably (see comparisons
below). Because of this more refined combustion, ethanol reduces harmful
emissions like carbon monoxide. It is increasingly replacing methyl t-butyl
ether (MTBE) as the most popular oxygenate additive, as it became known that
MTBE is a dangerous groundwater and soil contaminant.
As ethanol is highly miscible with water,
contamination of ethanol-blended
renewable agricultural source gasoline with moisture can cause phase
does not add net carbon dioxide separation, and therefore destruction of
the fuel
energy security will increase in many countries,
as governments will become less reliant on costly both energetically and economically
foreign petroleum exports Many of the current biofuel technologies
use edible feedstock in the production of
biofuels as a result, biofuel production
competes with food production.
Increased use of biofuels means
increased demand for the edible
feedstock. This shifts the demand curve
http://blogs.princeton.edu/chm333/f2006/bio for the edible feedstock to the right,
mass/bioethanol/ increasing the price of the food
7. energy stored in the corn is not free,need soil and water to grow the corn, disposal of
waste water polluted by nitrogen and phosphate fertilizers,
equivalent of 4.93 gallons of gasoline are
needed to produce a given quantity of
bioethanol, which itself produces the
equivalent of only 1.74 gallons of gasoline. This
statistic, if correct, would pin bioethanol use
with a net energy loss of 65%
not more productive,not environmentally
clean, and it does not reduce American
dependence on foreign petroleum imports.
http://blogs.princeton.edu/chm333/f2006/bio
mass/bioethanol/05_major_issue_feasibility_d
isputes/
8. In contrast to what critics of biofuels
often claim, bioethanol production
does not decrease the area available for
food production, on the contrary, areas in
other countries are released for the cultivation
of additional raw materials.
better exploitation of the
energy in the fuel, in particular in highly
charged
spark ignition engines. Greater shares of
bioethanol in the fuel enable the automotive
industry to achieve the same engine power
with smaller engines with lower consumption.
http://epure.org/pdf/tf3ea6c089-4579-
83cb.pdf
http://www.uk-energy-
saving.com/bioethanol_fuel.html
11. Biofuel vs global hunger and food prices
http://epure.org/pdf/223ea6c089-96e7-
2795.pdf
http://stopworldhunger.webs.com/
http://www.shc.edu/theolibrary/hunger.htm
