Your SlideShare is downloading. ×
0
New media
New media
New media
New media
New media
New media
New media
New media
New media
New media
New media
New media
New media
New media
New media
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

New media

126

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
126
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Energy is something essential in our lives. We need it towork,eat,live.without energy we will not be able to do anything. Thusenergy is extremely important to us. For several centuries, fossil fuelshave been our primary source of energy and fuel. Firstly in the form ofcoal,then as technology improves and progresses, distillation of crudeoil is made possible. Petro,lpg etc. However, there is one problem: thatfossil fuels are limited and will eventually run out. Given our increasingdemand for energy due to population growth and industrial needs, wehave to find other fuel sources to sustain and satisfy the needs of thefuture generations. Several options have been explored including solarpower, hydropower, and wind power. During the past few decades,another alternative emerged and has since been touted as the answerto fossil fuels. BIOFUEL the most common form of biofuel that existsnow is bioethanol.
  • 2. 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 curvehttp://blogs.princeton.edu/chm333/f2006/bio for the edible feedstock to the right,mass/bioethanol/ increasing the price of the food
  • 3. energy stored in the corn is not free,need soil and water to grow the corn, disposal ofwaste 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/
  • 4. 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.pdfhttp://www.uk-energy-saving.com/bioethanol_fuel.html
  • 5. Global warming
  • 6. Bioethanol productionhttp://www1.eere.energy.gov/biomass/m/abcs_biofuels.html
  • 7. Biofuel vs global hunger and food prices http://epure.org/pdf/223ea6c089-96e7- 2795.pdfhttp://stopworldhunger.webs.com/ http://www.shc.edu/theolibrary/hunger.htm
  • 8. cornhttp://www.dreamstime.com/photos-images/maize.html

×