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In this study the influence of various blends biodiesel on steady state exhaust emissions was determined. A series tests were conducted over a period of six months, including the summer when the ambient temperature is quite high in Greece. An old technology Ford Escort 1.6L, 4 cylinders with indirect injection system was used on a chassis dynamometer. The test car was not equipped with an engine Electronic Control Unit (ECU) and run on the dynamometer with full load on three different gear settings (second gear, third gear and fourth gear). Seven fuels were used, a high sulfur diesel, and blends of 10%, 20%, 30%, 40% and 50% by weight biodiesel in neat diesel (B10), (B20), (B30), (B40), (B50) and (B100) respectively. Fuel injection timings were held the same for the biodiesel blends and the baseline diesel fuel to eliminate the potential injection timing differences due to the different fuel heating values.

In this study the influence of various blends biodiesel on steady state exhaust emissions was determined using, in terms of technology, two different cars. A first series of tests were conducted in Greece and a second series of tests were conducted in Belgium. An old technology Ford Escort 1986 model, 1.6L, 4 cylinders with indirect injection system engine was used on a chassis dynamometer in Greece [1] and a Volvo V70 2.5L, 2003 model with a modern engine fitted on was tested in Belgium [2]. The Greek test car was not equipped with an engine Electronic Control Unit (ECU) and run on the dynamometer with full load on three different gear settings (second gear, third gear and fourth gear). The Belgian car was a modern Volvo V70 2.5L Turbo Diesel. Seven fuels were used in both cases, a high sulfur diesel, more than 300 ppm, in Greece, and blends of 10%, 20%, 30%, 40% and 50% by weight biodiesel in neat diesel or (B10), (B20), (B30), (B40), (B50) and (B100) respectively.

In this study the influence of various blends biodiesel on steady state exhaust emissions was determined using, in terms of technology, two different cars. A first series of tests were conducted in Greece and a second series of tests were conducted in Belgium. An old technology Ford Escort 86 model, 1.6L, 4 cylinders with indirect injection system engine was used on a chassis dynamometer in Greece and a Volvo V70 2.5L was tested in Belgium. The Ford Escort test car was not equipped with an engine Electronic Control Unit (ECU) and run on the dynamometer with full load on three different gear settings (second gear, third gear and fourth gear). The Belgian car was a modern Volvo V70 2.5 L Turbo diesel. Seven fuels were used in both cases, a high sulfur diesel in Greece, and blends of 10%, 20%, 30%, 40% and 50% by weight biodiesel in neat diesel or (B10), (B20), (B30), (B40), (B50) and (B100) respectively.