Abstract: Vegetal energy is becoming one of the important energy sources for diesel engine. On the basis of the burning character research of tea-seed oil on diesel engine, material handling was applied to the tea-seed oil. With the processed oil, burning test was carried out on the S195 diesel engine, and micro electronic scanning apparatus was applied to measure the carbon particle in the exhaust air. And the result shows that it is feasible to burn tea-seed oil or mixture oil of tea-seed oil and diesel oil without changing the basic structure of the engine while with better burning performance, the carbon deposit in the combustion chamber and on the oil nozzle as well as the exhaust contaminant drops. So the undergone material handling tea-seed oil has better burning character than the diesel oil or the mixture of tea-seed oil and diesel oil without material handling.

Key words: diesel engine, tea-seed oil, exhaust air, carbon particle measuring