Study of ignition delay period of n-Butanol blends with JOME and diesel under static loading conditions

ABSTRACT

Longer ignition delay results in higher in-cylinder temperature which causes higher NO_X emission. However, limited information available about ignition delay and its importance. In the present work, ignition delay of various fuels and their blends is measured on different offload engine conditions. The experimental setup works between full load engine condition (i.e., 40bar and 400°C) and no load engine condition (i.e., 10bar and 300°C). The effect of injection pressure, in-cylinder temperature and in-cylinder pressure on delay period is analyzed for off engine conditions. The results show that parameter which effects ignition delay most is temperature followed by injection pressure and in-cylinder pressure.

KEYWORDS:

• Combustion chamber
• ignition delay
• JOME
• n-Butanol
• static loading