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Diesel Powered engines are predominately used in transport and power generators. Due to rapid depletion of fossils fuels like diesel, there is need to find alternate resources for as a fuel for transport and power sector. The use of third generation fuels like algae seems to be a promising solution to satisfy our energy demands in future. In these work algae is used as an alternative fuel with different blend combination with diesel and the results obtained are summarized. Algae fuel is blended with diesel on a volume basis, namely A10, A20, A30, A40 and A100 and made to run in diesel engines. The properties of the fuels were found according to American Society for Testing and Materials standards. Experimental testing was carried out in a single cylinder direct injection diesel engine. Among the various blends tested A20 shows closer estimation with diesel results in higher thermal efficiency lower HC, CO, Smoke and particulate matter emissions. However, the other emissions like Nitrous oxide and carbon dioxide were shown marginally higher. Regarding cylinder pressure and heat release rate curves, the peak value obtained is considerably lower at higher load condition while compared with diesel.

In this study, the effects of tert-butanol on the engine performance of Karanja biodiesel/tert-butanol blends were examined. Experiments were conducted on a single-cylinder, four-stroke, wa...

The decline in the availability of fossil fuel, increase in cost and the stringent emission norms are the main concerns identified in the automotive sector during the recent years. Biodiesel is one of the hopeful alternate resources for the mineral diesel to address the above-listed problems. In the present investigation, waste chicken fat biodiesel has been prepared and used to investigate the performance features of single cylinder naturally aspired direct injection diesel engine. The waste chicken fat biodiesel is prepared using transesterification process, and the yield is found to be 94.8%. The physicochemical characteristics of the waste chicken fat methyl ester have been tested and found in line with ASTM standards. The blends of waste chicken fat biodiesel with mineral diesel have been prepared and experimented in a single cylinder standard compression ignition diesel engine without any modifications. The combustion, performance and emission characteristics have been studied, and it is found that the blend B20 resulted in higher performance and lesser emissions among the other test fuels.

In this present work, a novel blend of biodiesel is used to investigate the performance and emission characteristics of an unmodified diesel engine. Pongamia Pinnata is used to extract oil and transesterification process is done to reduce its viscosity. Different fuel blends were prepared using biodiesel which includes D20 blend with diesel, K20 blend with Kerosene and M20 blend with Methanol, the fuel prepared were used in the engine to analyse the performance and emission characteristics of the engine. The results were compared with the standard fuel mineral diesel. A considerable increase in brake thermal efficiency is observed for D20 blend. The blend K20 shows considerable improvement in the performance as well as reduction in the emission when compared to all other fuels.