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Theoretical and Experimental Analysis on Use of Alternative Fuels for Internal Combustion Engines

The drastic decrease in the world energy resources along with the statement that the modern culture and civilization simply cannot exist without energy and therefore, due to its very existence, it is a big energy consumer, has become an axiom. The increasing number of inhabitants on the planet and consequently the increased amount of necessary energy has determined the researchers and scientists to search deeper into other possible sources of natural energy such as: wind, sun, water, geothermal, tides, atom energies. The work presents some characteristics of injection and burning of the rape oil for Diesel engines and the mixtures of ethanol with gasoline for spark ignition engines.