Báo Cáo Perfomance and exhaust gas emission effect on a direct injection diesel engine using biodiesel from

ABSTRACT
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Due to the emissions from compression ignition engine (CIE) which are being placed under stricter regulations and the raise of oil price, many countries have been looking for alternative energy. Biodiesel gains recognition as a renewable fuel, which may be used as an alternative fuel to diesel fuel without any modification to the engine. Biodiesel fuels can be produced from vegetable oils or animal fats and have several advantages: they are renewable, safer, biodegradable, and they have a small or even no sulfur content and can reduce the engine exhaust gas emission.

In Indonesia, palm is the most potential plant that can be exploited to produce biodiesel. The plantation of palm in Indonesia has been grown rapidly since early 1980s. Recently, the total caltivated land of palm oil exceeds 4.9 million hectares and the palm oil production in Indonesia overcomes 10.68 million tons/year. This research was carried out at the Bandung Institute of Technology. In this study, the engine performance, exhaust gas emission, and the influence of fuel on engine componets are determined and compared with fuels: neat biodiesel fuel of Refined Bleach Deodorized Palm Oil (RBDPO), and also the blend of its and diesel fuel.

The use of biodiesel from RBDPO is found that lower emission of unburned hydrocarbon, carbon monoxide, nitrogen oxides and smoke, and that with some increase brake specific fuel consumption of the biodiesel and its blend with diesel oil. The trend and magnitude of performance and exhast gas emission is almost unchanged when the data and picture of engine component were collected and compared after the test.