The Effects on Smoke and NOx with Biodiesel fuel in a Common Rail Direct Injection Diesel engine

다국어 초록 (Multilingual Abstract)

Our environment is faced with serious problems related to the air pollution from automobiles in these days. Specially, the exhaust emissions from the diesel engine are recognized as a main cause influencing the environment severly. In this study, the potential possibility of biodiesel fuel was investigated as an alternative fuel for a naturally aspirated common rail diesel engine. The smoke emission of the biodiesel fuel of 5 vol-% was reduced to about 60% at the engine speed of 4000 rpm with the full load compared to the diesel fuel, and there was no big difference on the power, torque, and brake specific energy consumption. But, NOx emission of biodiesel fuel increased compared to the commercial diesel fuel. The effects of exhaust gas recirculation (EGR) on the characteristics of NOx emission has been investigated and found that simultaneous reduction of smoke and NOx was achieved with the biodiesel fuel (5 vol-%) and cooled EGR method (5~10%) in the common rail diesel engine.

목차 (Table of Contents)

• Abstract
• 1. INTRODUCTION
• 2. EXPERIMENTAL APPARATUS AND METHODS
• 3. RESULTS AND DISCUSSION
• 4. CONCLUSION
• Reference