Investigation of effiency of consuming ethanol of diesel engine

Renewable resources, searching for alternative energy and its application in motor vehicles became particularly urgent now, when oilfields are approaching to their depletion and prices of hydrocarbon fuel are permanently growing. One of renewable energy sources is ethanol that may be produced upon the existing conditions in Lithuanian as well. Consuming alternative fuel in internal combustion engines of motor vehicles that are applied to use fuel made of fossil oil causes various technical problems. When pure alternative fuel is consuming, one meets into collision with expensive and complicated changes of structure of the engine and its control (fuel supplying) systems. Seeking for reduction of the above mentioned expenses and simplified exploitation, the usual fuel is partially replaced by the alternative one. The problem arises in using a supply system for introducing the fuel applied for extra supply of ethanol to the air, sucked into Diesel engines combustion chambers. The issues related have been discussed in the presented paper