EFFECT OF INJECTION PRESSURE ON PERFORMANCE AND EMISSION CHARACTERISTICS OF SINGLE CYLINDER DIESEL ENGINE USING NEEM-NIGER BIODIESEL: A REVIEW

MECHANICAL ENGINEERING

Petroleum based fuels are likely to be unavailable in the future. Environmental warnings and limited extent of petroleum fuels have prompted the search for alternative fuels for internal combustion engines. Bio-diesels that meet the criteria have been used by a number of academic researchers who have stated that, biodiesel exhibits very similar engine performance characteristics attributed to diesel fuel and diminishes the exhaust emissions from diesel engines. The performance in terms of brake thermal efficiency of the engine running on bio-diesel blends is equivalent to that of diesel fuel. This is in agreement with the findings reported by numerous investigators while fueling diesel engines by bio-diesels attained from palm, sunflower, soybean, sunflower, canola, olive, karanja, jatropha, mahua, neem, niger and rubber seed oils. Among all these neem and niger seeds are abundantly available and are great potential source of energy. Again there are two ways to improve the performance and emission characteristics of internal combustion engine, one by varying the compression ratio and other one is by varying the injection pressure.

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