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Abstract: Often we use to say fuel prices are hiking, but instead of availability, we always hesitate to make use of alternate fuel cheaper than the conventional fuel. There are many alternate fuels which are having numerous of benefits in addition with cost effectiveness. Using alternate fuel in vehicles is a proven technology and is traditionally in use for past three decades in many developed as well as in developing countries. Internal combustion engines running on liquid petroleum gas (LPG) and natural gas are well-proven technologies and work much similar to gasoline-powered spark-ignition engines [1]. This paper focuses on the use of LPG as a fuel, its pose and con, its comparison with conventional fuel i.e. Petrol, and benefits in adopting LPG as a fuel in vehicles.
Keywords: Alternative fuel, LPG, Environment, Engine performance, Cost economy.
I. Introduction
Internal combustion engine running on Liquified Petroleum gas are well proven technologies and work much similar to gasoline powered spark-ignition engine. Gasoline is a fuel obtained from fractional distillation of crude oil, the composition of which is paraffins (15% - 60%), napthenes (30% - 60%), aromatics (3% to 30%), with asphaltics making up the remainder [2]. Conventional gasoline is mostly a blended mixture of more than 200 different hydrocarbon liquids ranging from those containing 4 carbon atoms to those containing 11 or 12 carbon atoms. It has an initial boiling point at atmospheric pressure of about 35 °C (95 °F) and a final boiling point of about 200 °C (395 °F) [3,4]. Presently around 85% of SI engine vehicles are using petrol as a fuel and hence we can see that, the alternative fuel is still not in use. On the other hand LPG like all fossil fuels, it is a non-renewable source of energy. It is extracted from crude oil and natural gas. The main composition of LPG is hydrocarbons containing three or four carbon atoms. The normal components of LPG thus, are propane (C3H8) and butane (C4H10). Small concentrations of other hydrocarbons may also be present. The first LPG cook stove was made in 1912, and the first LPG -fueled car was developed in 1913 [5]. Autogas is the third most popular automotive fuel in the world, with approximately 16 million of 600 million...