POWER POINT PRESENTATION ON LASER IGNITION SYSTEM

1. PROJECT PRESENTATION ON
PRESENTED BY
ASHUTOSH GAUR 1413240043
ARPIT SHARMA 1413240041
AVINASH K. SINGH 1413240047
GAURAV TIWARI 1413240074
ANUJ K. SINGH 1413240037
UNDER THE GUIDANCE OF
MR. VISHWAJEET RANJAN

2. INTRODUCTION
 It's widely accepted that the internal combustion engines
will continue to power our vehicles.
 Two critical aspects of engine performance are fuel
economy and exhaust gas emissions
 The process of starting the combustion of fuel in the
cylinders of an internal combustion engine is known as
ignition.
 Conventionally done with spark plug.
 The system in which the ignition is done with the help of
laser igniters instead of conventional spark plug is known
as laser ignition system.

3. PROBLEM WITH SI SYSTEM
 Location of spark plug is not flexible as it require shielding of plug from
immense heat.
 It is not possible to ignite inside the fuel spray.
 It require frequent maintenance to remove carbon deposits.
 Leaner mixtures cannot be burned efficiently.
 Degradation of electrodes at high pressure and temperature.
 Flame propagation is slow.
 Higher turbulence levels are required.

4. ADVANTAGES OF LASERIGNITION SYSTEM
Can burn leaner mixture hence better fuel economy.
Less NOX emission due to lower combustion temperature.
Erosion effects are avoided hence longer life.
Multi point ignition can be possible.
No carbon deposit due to self cleansing property hence minimal maintenance is
required.
Better flame propagation due to uniform flame kernel development.
Precise ignition timing possible.

5. WHAT IS LASER..?
The word LASER is an acronym for Light Amplification by
Stimulated Emission of Radiation. Laser is a device that
amplifies or increases the intensity of light and produces
highly directional light.
Laser not only amplifies or increases the intensity of
light but also generates the light. Laser emits light
through a process called stimulated emission of
radiation which amplifies or increases the intensity of
light. Some lasers generate visible light but others
generate ultraviolet or infrared rays which are invisible.

6. CHARACTERISTICS OF LASER
Laser light has four unique characteristics that
differentiate it from ordinary light: these are
1. Coherence
2. Directionality
3. Monochromatic
4. High intensity

7. WORKING OF LIS
BLOCK DIAGRAM OF LASER IGNITION SYSTEM

8. LIST OF PAPERS
NAME OF RESEARCH PAPERS NAME OF RESEARCHERs/REVIEWERS
Laser Ignition System in IC Engine ABHISHEK SAXENA
Effects of laser parameters on laser ignition in an internal combustion engine MULLETT, J. D., DODD, R.
A demonstration of laser ignition on natural gas engine EIICHI TA141541KAHASHI
A Contribution to Environmental Protection and Challenge to Laser Technology ERNST WINTNER
Laser ignition system for internal combustion engine UTSAV KOTHARI
Laser Ignition in Internal Combustion Engines - A Contribution to a Sustainable
Environment
M. LACKNER, F. WINTER
Laser Spark Ignition in lean burn CNG Engine VIKAS SHARMA
Laser Ignition System in IC Engine HRUSHIKESH MANTRI, PROF.
MANODAY RAMTEKE
Laser Ignition System for Internal Combustion Engine M.SRINIVASNAIK1, DR.T.V.V.
SUDHAKAR
Laser Assisted Ignition System For Engines PRIYANKAA. KALE

9. ND:YAG LASER
Neodymium-doped Yttrium Aluminum Garnet (nd:yag) laser is a solid state laser in
which nd: yag is used as a laser medium.
Nd:yag laser is a four-level laser system, which means that, four energy levels are
involved in laser action. These lasers operates in both pulsed and continuous
mode.
Nd:yag laser generates laser light commonly in the near-infrared region of the
spectrum at 1064 nanometers (nm). It also emits laser light at several different
wavelengths including 1440 nm, 1320 nm, 1120 nm, and 940 nm.

10. CONSTRUCTION ANDWORKING
Nd:YAG laser consists of three important elements,
1. An energy source
2. Active medium
3. Optical resonator

11. VIKAS SHARMA (2016)
COMPARISON OF FUEL CONSUMPTION ,SMOOTHNESS AND EMISSIONS
BETWEEN SPARK AND LASER IGNITION
PREVIOUS EXPERIMENTS’ RESULTS/REVIEWON ENGINE TEST

12. M. LACKNER, F. WINTER
After 100 pulses laser, Bean area is cleaned
by the laser beam
After 20 hours operation with spark plug
ignition, heavily polluted
CNG ENGINE EXPERIMENT

13. ERNST WINTNER et.al (2014)
EFFECT OF TEMPERATURE ON PULSE FORMATION

14. J D MULLETT & R DODD (2006)
A GRAPH BETWEEN THE LASER PULSE ENERGY TRANSMITTED INTO THE OPTICAL PLUG
AND AFTER THE OPTICAL PLUG.

15. EIICHI TAKAHASHI (2015)
THE RESULT OF THE EXPERIMENT DONE ON NATURAL GAS ENGINE IS THE RELATION
BETWEEN THE IMEP AND EQUIVALENT RATIO SHOWN IN FIG.

16. CONCLUSION
 The applicability of a laser-induced ignition system on direct injected gasoline engine
has been proven by many experiments conducted around the world.
 Application of this system would be a great step in reduction of environmental
pollution.
 As we are shifting towards hybrid system for better fuel economy then we can use
this system also because the system is capable of burning leaner mixture that results
in lower fuel consumption.
 Ignition-delay times are smaller and pressure gradients are much steeper compared
to conventional spark plug ignition.
 Optical window is capable of cleansing itself, hence less maintenance is required
result in longer life of Optical Plug.
 At present, a laser ignition plug is very expensive compared to a standard electrical
spark plug ignition system and it is no where near ready for deployment. But the
potential and advantages certainly make the laser ignition more attractive in many
practical applications.