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Supercritial Fuel Injection System

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Supercritial Fuel Injection System is a fuel injection system that can be used to reduce emissions and increase efficiency up to 50 - 70 % in an automobile.

Supercritial Fuel Injection System is a fuel injection system that can be used to reduce emissions and increase efficiency up to 50 - 70 % in an automobile.

Published in: Automotive, Technology, Business
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  • 1. SEMINAR ON: SUPERCRITICAL FUEL INJECTION SYSTEM
  • 2. PRESENTED BY: MELBIN K MATHEW NO: 31 S5 MECHANICAL GPTC KANNUR mlbnkm1@gmail.com
  • 3. IC ENGINES • Developed in 1850s • Most commonly used for mobile propulsion in vehicles. • Generally using fossil fuel (mainly petroleum) • Used around the globe
  • 4. CURRENT SCENARIO • 8,41,41,209 vehicles with IC engines produced in the world 2012 • 41,45,194 in India. • Production increased by 5.3% last year • Fuel cost increasing day by day. • Increased pollution.
  • 5. DRAWBACKS
  • 6. AIR POLLUTION
  • 7. THERMAL LOSSES
  • 8. LOSSES • • • • • • • Engine Losses - 62.4 % Idling Losses - 17.2 % Accessories - 2.2 % Driveline Losses - 5.6 % Aerodynamic Drag - 2.6 % Rolling Resistance - 4.2 % Inertia; Braking Losses - 5.8 %
  • 9. SUPERCRITICAL FUEL INJECTION SYSTEM (TRANSONIC COMBUSTION)
  • 10. SUPERCRITICAL FUEL INJECTION SYSTEM • Fuel is heated beyond thermodynamic critical point. • Heating is in the presence of a catalyst. • Fuel injection is using a specially designed fuel injector. • FUEL USED IS PETROL (GASOLINE). • COMPRESSION IGNITION IS USED.
  • 11. Supercritical fluid • any substance at a temperature and pressure above its critical point. • distinct liquid and gas phases do not exist in this condition. • small changes in pressure or temperature result in large changes in density
  • 12. MAJOR PARTS • • • • • • High Pressure Fuel Pump. Engine control unit (ECU) Fuel conditioning module. Heat exchanger. Fuel rails. Fuel Injectors.
  • 13. HIGH PRESSURE FUEL PUMP • An electric fuel pump. • Equipped with an Electronic Control Unit (ECU). • Increased safety.
  • 14. ELECTRIC FUEL PUMP
  • 15. FUEL CONDITIONING MODULE
  • 16. FUEL CONDITIONING MODULE • Fuel conditioning is an emerging technology based on the discovery that high powered magnets placed in a particular pattern on fuel feed lines cause the fuel to burn at a higher temperature and more efficiently.
  • 17. BENEFITS • Carbon contribution to the atmosphere is reduced • Reduced fuel consumption, 6% -15% reduction. • Less waste hydrocarbon in emissions means that more of the fuel is burnt. • A rise in flame temperature.
  • 18. HEAT EXCHANGER
  • 19. HEAT EXCHANGER • A piece of equipment built for efficient heat transfer from one medium to another. • Uses heat from exhaust gases to heat the fuel. • Tubular heat exchanger is used.
  • 20. FUEL RAIL (COMMON RAIL)
  • 21. FUEL RAIL (COMMON RAIL) • a pipe (usually resembling a rail) used to deliver fuel to individual fuel injectors. • It is designed to have a pocket or seat for each injector as well as an inlet for a fuel supply.
  • 22. FUEL INJECTOR
  • 23. FUEL INJECTOR • When signalled by the ECU the fuel injector opens and sprays the pressurised supercritical fuel into the engine. • The duration that the injector is open (called the pulse width) is proportional to the amount of fuel delivered.
  • 24. INJECTED FUEL NORMAL SUPERCRITICAL
  • 25. FUEL INJECTOR WORKING
  • 26. ELECTRONIC CONTROL UNIT
  • 27. FUNCTIONS OF ECU • • • • • • Air- fuel ratio control. Variable valve timing control. Idle speed control. Fuel injection. Error detection. Monitoring temperature and other sensors etc. (VIDEO) •
  • 28. ADVANTAGES • About 50 % increase in efficiency. • Perfect combustion of fuel. • Less pollution.
  • 29. DISADVANTAGES • • • Costly. Need regular maintenance. ECU can be hacked.
  • 30. REFERENCES • • • • • • • • Wikimedia. Wikipedia. Team BHP. United States Patents - 2011/0057049 A1. Howstuffworks – Auto. MIT Technology Review. Green Autoblog. SAE INTERNATIONAL.
  • 31. QUESTIONS ?
  • 32.  THANK YOU

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