Safflower biodiesel blends with eurodiesel in common rail diesel engine exhaust emission effect

Abstract

In the present study, the effects of biodiesel obtained from safflower oil through transesterification and Eurodiesel blends on engine exhaust emissions were examined in a four-stroke, common-rail fuel system, water-cooled, four-cylinder diesel engine. The biodiesel used in this study was produced from safflower oil through transesterification. Using this biodiesel and diesel fuel, fuel blends of B7 (7% safflower methyl ester-93% diesel fuel in volume), B40 and B80 fuels were prepared. Experiments were conducted on the engine by using these fuel blends. The test engine was a four-cylinder, turbocharged, intercooler diesel engine with a common-rail fuel system. In the present study, eurodiesel fuel and safflower methyl ester blends were produced. Biodiesel fuels were respectively used in a diesel engine without performing and modifications on the engine. Engine performance and emission characteristics of these fuels were tested at full throttle and different engine speeds. Engine exhaust emission variation curves of each fuel were obtained using the data from the tests and the curves were compared with one another.