This paper presents the evaluation of combustion enhancement rate by means of multi-hole and single-hole plasma jet plug ignition in comparison with convention speak ignition in according to the variation of fuel-air equivalence ratio and sub-energy. ...
This paper presents the evaluation of combustion enhancement rate by means of multi-hole and single-hole plasma jet plug ignition in comparison with convention speak ignition in according to the variation of fuel-air equivalence ratio and sub-energy. Experiments are conducted by LPG-air mixture in a constant-volume cylindrical vessel. Not only the flame propagation is photographed at intervals, but the pressure variation in the combustion chamber is also recorded throughout the entire combustion process. The results show that the plasma jet ignition enhances the overall combustion rate remarkably in comparison to the spark ignition by generating turbulent flame front and penetrating through the unburned mixture. The dependence of the combustion enhancement rate on the fuel-air equivalence ratio leads to the fact that the two-hole sixty-degree plug is the most desirable ignitor than the single-hole plasma jet ignitor.