Browse Publications Technical Papers 2019-01-0793

Study of performance and emission characteristics of 2-propanol and gasoline fuel blends in unmodified spark ignition engine 2019-01-0793

In view of the rapid depletion, increasing prices and uneven distribution of the conventional petroleum fuels; the interest in use of alternative fuels has increased exponentially. Fuels such as biodiesel & alcohol have been evaluated both at experimental and commercial scale due to improved emission characteristics as compared to conventional fuels. Alcohols are oxygenated and result in improving the engine performance. As a blend with conventional gasoline, the alcohols enhance the premixed and diffusive combustion phase which improves the combustion efficiency. The present investigation evaluates studies on stability and homogeneity along with physico-chemical properties like density, viscosity, calorific value, copper-strip corrosion and solubility at room temperature of 2-propanol and gasoline blends. Comprehensive engine trials on unmodified petrol engine fuelled with blends of 2-propanol and gasoline blends in proportion of 5, 10, 15 and 20% by volume have been conducted. The performance characteristics e.g. brake-specific energy consumption, brake thermal efficiency and emissions characteristics such as NOX, CO and HC were studied and analyzed to evaluate the optimum alcohol/fuel blend for petrol engine. The result yielded comparable properties as compared to gasoline.


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