| Popis: |
The prices of fossil fuels are constantly increasing due to the limited resources and consistent rise in demand. Also, with each passing year emission regulation is getting stringent, hence alternative fuels resulting lesser exhaust emission at no expense of the performance is the need of the hour. The performance parameters and the engine emissions were investigated and compared with different dual fuel combination at varying load conditions using a single cylinder four-stroke CI engine which on modification worked as a dual fuel engine. CO, CO2, HC, and NOx are the exhaust emissions measured interpret at the various operating conditions. Two fuels, i.e., pilot fuel and gaseous fuel, when used simultaneously is referred as dual fuel mode, where we have used biogas as the gaseous fuel in this study. The three pilot fuels are injected separately inside the modified engine, namely diesel, soya–biodiesel (SBD), soya–biodiesel–ethanol (SBDE), while the biogas is primary gaseous fuel. A modification was made in the inlet air manifold of the engine by adding a gas mixer to achieve the purpose of proper blend of air and biogas before delivering the mixture to the combustion chamber of the engine. Also, a regulating lever was added to fluctuate the amount of input pilot fuel as per requirement. This investigation was done out to examine the feasibility of utilizing soya oil through blending in a CI engine. The investigation showed that the soya–biodiesel–ethanol blend can be the viable pilot fuel alternative for the CI engine. Also, the study shows that biogas is a useful entity to reduce the use of diesel fuel in CI engine due to the good liquid fuel replacement ratio. |
