3rd Year Seminar ReportOn ALCOHOL AS AN ALTERNATIVE FUEL IN I.C ENGINES Undertaken by: MITHUN SARKAR Roll No IC engines because of their high octane rating, burning velocities, and wider Appendix A. Both acts are mandating the procurement of alternative fuel vehicles. Alcohols have been used as a fuel. The first four aliphatic alcohols are of interest as fuels . into its main agenda. Alcohol fuels had become part of five main alternative fuels: Two of which were alcohols; methanol and ethanol.
|Published (Last):||20 March 2007|
|PDF File Size:||2.57 Mb|
|ePub File Size:||19.33 Mb|
|Price:||Free* [*Free Regsitration Required]|
Direct cylinder injection raises the already high octane rating of ethanol up to an effective Of undecanted stillage Remaining water by subtraction. Two types of second generation processes are under development. Wald 13 October Alcohol fuels Biofuels Liquid fuels.
When it’s E70 with an E85 sticker on it”. In this process, ethanol vapor under pressure alternativs through a bed of molecular sieve beads. There has been considerable debate about how useful bioethanol is in replacing gasoline. Summary of Modes of Engine Operation.
ALCOHOL AS AN ALTERNATIVE FUEL IN I.C ENGINES
Otherwise, ignition timing is programmed to be a little later retarded than optimal to ensure that knocking does not take place due to varying fuel mixtures gasoline mixtures vary from tank to tank and with seasonal bendsengine wear, carbon buildup in the cylinders, etc. The poor auto-ignition capability of alcohols is responsible for severe knock due to rapid burning of vaporized alcohol [1,4] and combustion quenching caused by high latent heat of vaporization and subsequent charge cooling.
When enough water is present in the fuel, the aluminum will react preferably with water to produce Al 2 O 3repairing the protective aluminum oxide layer.
Instead, the azeotropic mixture can be blended directly with gasoline so that i.v.engines phase equilibrium can assist in the elimination of water. The petroleum industry in Japan is now proceeding with research and development of an original alcohol fuel that differs from GAIAX. During combustion, ethanol reacts with oxygen to produce carbon dioxide, water, and heat:.
ALCOHOL AS AN ALTERNATIVE FUEL IN I.C ENGINES – ppt download
In drag racing, there are Top Alcohol classes for dragsters and funny cars since the s. Ethanol is produced by microbial fermentation of the sugar. Another early method, called extractive distillationconsists of adding a ternary component that increases ethanol’s relative volatility.
Wind-powered vehicle Zero-emissions vehicle. Farmers must use biofuels to produce biofuels, not petro fuels! Halide ions increase corrosion in two ways; they chemically attack passivating oxide films on several metals causing pitting corrosion, and they increase the conductivity of the fuel.
indiatechnical: PPT ON ALCOHOL AS AN ALTERNATIVE FUEL IN I.C ENGINES
The engine will run well in normal operation, but may have some starting problems on cold mornings and may misfire and overheat when accelerating very hard.
This would be useful because butanol has a higher energy density than ethanol, and because waste fibre left over from sugar crops used to make ethanol could be made into butanol, raising the alcohol yield of alconol crops without there being a need for more crops to be planted.
The fermentation processes to produce propanol and butanol from cellulose are fairly tricky to execute, and the Weizmann organism Clostridium acetobutylicum currently used to perform these conversions produces an extremely unpleasant smell, and this must be taken into consideration when designing and locating a fermentation plant.
University of Illinois Extension. The 3-carbon alcohol, propanol C 3 H 7 OHis not often used as a direct fuel source for petrol engines unlike ethanol, methanol and butanolwith most being i.c.entines into use as a solvent. It is a high octane fuel with anti-knock index numbers of over The calculation of exactly how fhel carbon dioxide is produced in the manufacture of bioethanol is a complex and inexact process, and is highly dependent on the method by which alcoohl ethanol is produced and the assumptions made in the calculation.
Archived from the original on 24 August However, ethanol designed to be blended with gasoline must be dried anhydrousso water should not be altermative problem, unless the fuel is sitting around exposed to the atmosphere for long periods of time.
The heavier phase, alohol in the entrainer benzene or cyclohexaneis stripped of the entrainer and recycled to the feed—while the lighter phase, with condensate from the stripping, is recycled to the second column. Methanol by itself is not a good CI engine fuel because of its high octane number, but if a small amount of diesel oil is used for ignition, it can be used with good results.
One advantage shared by the four major alcohol fuels is their high i.c.enfines rating.
If ethanol is then placed in the gas tank, it may dissolve off the varnish which will travel, in clumps of gunk, into the fuel filter and clog up the fuel system. The first type uses enzymes and yeast fermentation to convert the plant cellulose into ethanol while the second type uses pyrolysis to convert the whole plant to either a liquid bio-oil or a syngas.
The technology for producing cellulosic ethanol alfernative currently in the commercialization stage. Concerns about its production and use relate to increased food prices due to the large amount of arable land required for crops,  as well as the energy and pollution balance of the whole cycle of ethanol production, especially from corn.