| Popis: |
The usage of palm oil diesel blends as an alternative fuel in a diesel engine has been proven by many researchers. However, the high viscosity of palm oil produced heavy low-volatility compounds that are difficult to combust in the main combustion phase, and produce longer combustion period when compared to diesel. This phenomenon will contribute to poor engine performance. Therefore, this research was conducted to optimize the engine performance based on different injection pressures and timings. Blends of 20 to 100% of palm oil (PO) and diesel were investigated on a standard Yanmar 178F diesel engine at various engine speeds, loads, injection pressures and timings. The optimization was carried out by using a design of experiment software. Experimental results show that the blends can match the diesel engine performance at higher injection pressure. |
