final year project and implimentation
sumit kumar Thakur|
Active In SP
Joined: Jan 2010
17-01-2010, 05:55 PM
Can bio-ethanol be used as a fuel in automobile engine[/size][/b][/font]?
computer science technology|
Active In SP
Joined: Jan 2010
17-01-2010, 10:13 PM
surely you can use bio fuel as fuel in automobile engine actually Bioethanol was one of the first fuels used in automobile engine. The ethanol is injected into the engine in the same way as a non-hybrid automobile engine. Though ethanol gives slightly less miles(millage) per litter than gasoline, it doesn't create as much air pollution when it is burned.
ethanol fuel (ethyl alcohol), the same type of alcohol found in alcoholic beverages. It can be used as a transport fuel, mainly used as a biofuel additive for gasoline , Ethanol is widely used in Brazil and in the United States for blending with gasoline , and together both countries were responsible for 89 percent of the world's ethanol fuel production in 2008. Most cars on the road today in the U.S. can run on blends of up to 10% ethanol, and the use of 10% ethanol gasoline is mandated in some U.S. states and cities,
Bioethanol, unlike petroleum, is a form of renewable energy that can be produced from agricultural feedstocks. It can be made from very common crops such as sugar cane, potato, manioc and maize. Recent developments with cellulosic ethanol production and commercialization may allay some of concerns.Cellulosic ethanol offers promise as cellulose fibers, a major and universal component in plant cells walls, can be used to produce ethanol
Most hybrid automobile engines that use ethanol can also use gasoline, and are also called "flex-fuel" engines,The similarities between ethanol "flex-fuel" engines and standard engines make ethanol cars cheaper than most alternative or hybrid vehicles,
What is Bioethanol?....
A high-octane, water-free alcohol produced from the fermentation of sugar or converted starch.
In its purest form, it is a colorless clear liquid with mild characteristic odor that boils at 78Ã‚Â°C and freezes at â€œ112Ã‚Â°C.
It has no basic or acidic properties.
Can be used as liquid fuel in internal combustion engines either on its own or blended with petroleum.
Hydrous bioethanol (95% purity) is used as pure alcohol fuel.
Anhydrous bioethanol (99.5% purity) is used for blending with gasoline.
History of Bioethanol use......
Bioethanol was one of the first fuels used in automobile engine.
It was used extensively in Germany during World War II and also in Brazil, the Philippines, and the United States.
During the postwar period, as petroleum supplies became cheap and abundant, gasoline largely replaced bioethanol as an automotive fuel.
In 1970s, when the supply of oil was restricted, bioethanol re-emerge as an alternative to or extender for petroleum-based liquid fuels (ethanol as an extender is added to these fuels to increase their volume).
What are the benefits of using Bioethanol?......
Major vehicle manufacturers worldwide particularly vehicles manufactured and sold in US and Europe that meets these two countries vehicle emission standards and which are also now sold in the Philippines approve the use of E-10 blended unleaded which provides the following benefits such as:
Improves the combustion efficiency of gasoline because of the oxygenates that is inherent to bioethanol thus will translate to better performance, reduced carbon monoxide and unburned hydrocarbon emissions which in most cases improves fuel economy;
Provides high octane rating at low cost as an alternative to harmful fuel additives;
Biodegradable without harmful effects on the environment;
Reduces greenhouse gas emissions because it burns more efficiently thus significantly reducing unburned carbons;
High volumetric efficiency and burns cooler than straight gasoline helping to keep valves cool which contributes to increase in power;
Bioethanol expands the market for Filipino farmers, particularly the sugar sector, thus enhancing rural economic development.
Pure bioethanol can replace gasoline in modified spark-ignition engines, or it can be blended with gasoline at up to thirteen percent concentration (13%) to fuel unmodified gasoline engines.
Blending serves two purposes: (1) it extends gasoline supplies, and (2) as an octane enhancer, it replaces metallic-based additives.
The programs are designed to reduce a countryâ„¢s dependence on costly imported fuel and to assist in creating a new domestic fuel industry.
The production and use of bioethanol can indirectly serve a variety of needs. On a national level, bioethanol can improve balance of payments by displacing imported petroleum with domestically produced fuel. This may also provide increased rural employment and alternative markets for agricultural commodities.
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