Biodiesel Production and Effect on DI Diesel Engine Combustion, Performance and Emissions Using Biodiesel and Its Blends -A Review (original) (raw)

2014, International Journal of Engineering Research and Technology (IJERT)

https://www.ijert.org/biodiesel-production-and-effect-on-di-diesel-engine-combustion-performance-and-emissions-using-biodiesel-and-its-blends-a-review https://www.ijert.org/research/biodiesel-production-and-effect-on-di-diesel-engine-combustion-performance-and-emissions-using-biodiesel-and-its-blends-a-review-IJERTV1IS6083.pdf As the price of petroleum oil reaches a new high, the need of developing alternate fuels has become acute. Alternate fuels should be economically attractive in order to compete with currently used fossil fuels. Biodiesel, produce by the transesterification of vegetable oils or animal fats with simple alcohols and catalyst attracts more and more attention recently. Biodiesel is clean burning diesel alternative and has many attractive features including renewability, biodegradability, non toxicity and low emission. The aim of the present review is to study the biodiesel production from transesterification process, effect of reaction parameters on conversion of biodiesel yield and its combustion, performance and emission characteristics. It observes that the base catalysts are more effective than acid catalysts. Biodiesel is a notable alternative to the widely used petroleum-derived diesel fuel since it can be generated by domestic and non domestic sources such as soybeans, coconuts, rapeseeds, Jatropha, Karanja, rubber seed, Mahuaa, waste frying oil, etc. and thus these reduces dependence on diminishing petroleum fuel from foreign sources. The problems with substituting triglycerides for diesel fuels are mostly associated with their low volatilities, high viscosities and polyunsaturated character. The main purpose of the transesterification process is to lower the viscosity of the oil. Over a number of years, the work of exploring different biodiesel as an alternative to diesel fuel has been carried out worldwide. The performance of biodiesel is closed to petroleum diesel fuel. The brake power of biodiesel fuel is approximately equal to diesel, while the specific fuel consumption is higher than that of diesel. The combustion characteristic of biodiesel fuels is similar to petroleum diesel fuel and blends provide small ignition delay, higher ignition pressure, and higher ignition temperature and peak heat release. The emission from the biodiesel is comparatively less to diesel except NO x .