The gaseous fuels are LPG, CNG, H2, biomass and producer gas. The liquid fuels are alcohols (ethanol, methanol) and vegetable oils (edible and non-edible). The solid fuels are pulverized coal, slurry and charcoal which are not used in IC engines due to their physical properties, handling and storage problems. The different kinds of fuels that have been considered as alternative fuels for petroleum based fuel are classified as solid, liquid and gas. The diesel emission has been classified as human carcinogen.

The scarcity of conventional fossil fuels, growing emissions of combustion causing pollutants and their increasing costs will make biomass sources more attractive.Įpidemiological studies have concluded that the long term exposure to diesel exhaust may cause lung cancer and other respiratory diseases. The burning of fossil fuels create higher levels of CO2 and other gases in atmosphere affecting the greenhouse effect.

Alternative fuels which are renewable and eco-friendly reduce the dependency on fossil fuels and they help to preserve the atmosphere by reducing the emission levels.

Alternative fuels for ic engines