Analysis of Laser Ignition in a Constant Volume Combustion Chamber

  • Dr. Sayed Amjad Ahmad, Engr. M. Asadullah Khan, M. Usman Zaffar ,Umair Tehseen, Tayyab Muneeb

Abstract

In the modern era scientists and engineers were looking for the alternative ways in order to reduce the fuel consumption.
Laser provides greater number of working hours up to 10,000 h and better combustion as compared to spark plug i.e. 4000 h. This
research involves the analysis of laser ignition in a constant volume combustion chamber and its comparison with spark plug. For this
purpose Litron NanoL 200-30 (UK) laser was used. The analysis revealed, by increasing the mass fraction of fuel in air-fuel mixture
temperature in the chamber was increased. Conversely, increase in pressure in combustion chamber decreased the combustion
temperature of methane. The auto-ignition temperature of methane was supposed to be 580 ËšC (1076 K) and it was reduced to 751K by
ignition through laser source at 10 bars. Pulse duration plays an important role during combustion in laser ignition. The temperature of
chamber was found to be diminished by decrease in pulse duration. Similar trend was found in the case of heat flux respectively. The
results showed the large flame front and greater turbulence in the case of laser because of increased heat flux which makes this process
more effective, reliable and has proper combustion as compared to spark plug.

Published
2017-07-29
How to Cite
,UMAIR TEHSEEN, TAYYAB MUNEEB, Dr. Sayed Amjad Ahmad, Engr. M. Asadullah Khan, M. Usman Zaffar. Analysis of Laser Ignition in a Constant Volume Combustion Chamber. NFC IEFR Journal of Engineering and Scientific Research, [S.l.], v. 3, july 2017. ISSN 2521-0114. Available at: <https://nijesr.com/ojs/index.php/archive/article/view/50>. Date accessed: 29 mar. 2024.
Section
Articles