Abstract
Particulate matter (PM) exhausted from diesel engines has several serious effects on human health and the environment. In this study, collection efficiency of the electrostatic-cyclone Diesel Particulate Filter (DPF) was evaluated to reduce the PM emission from marine diesel engines. A three-cylinder high speed four-stroke marine diesel engine was used as the test engine. The effects of exhaust gas temperature at the DPF inlet, exhaust gas flow rate through the DPF, applied voltage of electrostatic precipitator and operating condition of the engine on the PM collection efficiency were examined. Experimental results show that the exhaust gas temperature has a strong effect on the PM collection efficiency and that the PM collection efficiency at propeller load is higher than that at constant speed operation.
