EXPERIMENTAL INVESTIGATION OF EMISSION AND PERFORMANCE PARAMETERS OF PONGAMIA BIODIESEL AND HHO GAS ADDITION IN A COMPRESSION IGNITION ENGINE

Nowadays the environmental pollution has been increased incredibly by using conventional fuels. To control this increase in pollution alternate fuels has to be used as supplement for conventional fuels. While using conventional fuels such as petrol and diesel in IC engine there is a chance of increase in emissions. Alternate fuels can control emissions. This work is based on the investigation of emission parameters of pongamia biodiesel and HHO gas addition in a CI engine. Pongamia biodiesel is extracted by the process which is known as transesterification. Transesterification is the process which is used to convert raw vegetable oil into biodiesel with the use of catalysts such as NaOH, KOH, ethanol, methanol, etc. HHO is a gas which is produced by the process of electrolysis. Electrolysis is the process of converting liquid state to gaseous state in the presence of electrically charged ions. By introducing oxy hydrogen with air and using a biodiesel oil to ignite the mixture by using dual fuel mode. When the biodiesel quantity is too small to produce effective ignition, that is failure of ignition and when the hydrogen air mixture is so rich that the combustion becomes unbelievably high. This combination of fuels can reduce HC and CO emission and increase in NOx. And this investigation proves that beyond a certain range (30 to 40%) substitution of biodiesel fuel by hydrogen.