An attempt has been made in this project to use alternative fuel in two stroke Gasoline engine. Our fore most aim in selecting this project is to use non conventional fuel against conventional fuel which is becoming scarce and costly now days. With this air is less polluted than conventional fuels.It is also good with regard to economical considerations.
In our project we have installed LPG fuel system to two stroke vehicle where in we can use both gasoline and LPG. The alternations made to install LPG in the vehicle are discussed. LPG from storage tank comes to the adjustable regulator through a primary delivery valve fitted at the mouth of the LPG cylinder.
The LPG means Liquefied Petroleum Gas. It is also called as bottled gas (or) Refinery gas. It is obtained as a by product during cracking of heavy crude oils or from directly obtained natural gas. The LPG obtained either from cracking or from CNG (Compressed Natural Gas) is dehydrated, desulphurised and traces of organic sulphide (Mercaptans) are added to give warning of gas leak.
It is then filled in cylinders and added to give warning of gas leak. It is then filled in cylinders and compressed to that extend the fuel gas in liquid state and supplied under the trade name like INDANE-BURSHANE, and many other such suppliers. The calorific value is 27.800 Keal/m approximately.
Natural gas technology I.C engines beats the current emission standards for hydro carbons (HC) and nitrous oxide (NO) by more than two thirds and level for carbondioxide (CO) by more half. LPG consists of Hydrocarbons of such volatility that they can exist as gas under atmospheric pressure but can be readily liquefied under pressure.
SPECIAL FEATURES OF LPG SYSTEM 1. LPG is cheaper than gasoline in cost as well availability. 2. It gives better manifold distribution and mixes easily with air. 3. It is highly knock resistant. 4. Residue and oil contamination is small as it burns early. 5. Crank case dilution is small thereby resulting in increased engine life. 6. Due to uniform distribution thermal efficiency is higher. 7. LPG has a higher octane rating making it useful in engines having compression ratio above 10:1. 8. It leaves little or no carbon deposits in the cylinder when it burns. It is a clean gas. 9. Easy cold starting is possible due to thermal motion. 10. It has a low strain on lubricants. 11. Lesser exhaust emission and hence lesser air pollution. 12. High durability of exhaust system. 13. Spark plug and upper cylinder. 14. Since it enters as a gas it cannot wash down the cylinder walls. Thus not remove lubricant and so cylinder wall wear, piston rings wear is decreased. 15. Increased engine life.
Sachin is a B-TECH graduate in Mechanical Engineering from a reputed Engineering college. Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos.
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