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.

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  • As someone that used to work for TSC, I just like to mention that there are a few errors in your presentation. I don't recall us ever using a fuel conditioner with magnets. Also, being that there isn't a production system made to date how can anyone assume the maintenance requirement? The latest system, [if produced] would not require any special maintenance when compared to OEM systems currently in service. Hopes this provides some clarity..
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Supercritial Fuel Injection System

  1. 1. SEMINAR ON: SUPERCRITICAL FUEL INJECTION SYSTEM
  2. 2. PRESENTED BY: MELBIN K MATHEW NO: 31 S5 MECHANICAL GPTC KANNUR mlbnkm1@gmail.com
  3. 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. 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. 5. DRAWBACKS
  6. 6. AIR POLLUTION
  7. 7. THERMAL LOSSES
  8. 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. 9. SUPERCRITICAL FUEL INJECTION SYSTEM (TRANSONIC COMBUSTION)
  10. 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. 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. 12. MAJOR PARTS • • • • • • High Pressure Fuel Pump. Engine control unit (ECU) Fuel conditioning module. Heat exchanger. Fuel rails. Fuel Injectors.
  13. 13. HIGH PRESSURE FUEL PUMP • An electric fuel pump. • Equipped with an Electronic Control Unit (ECU). • Increased safety.
  14. 14. ELECTRIC FUEL PUMP
  15. 15. FUEL CONDITIONING MODULE
  16. 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. 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. 18. HEAT EXCHANGER
  19. 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. 20. FUEL RAIL (COMMON RAIL)
  21. 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. 22. FUEL INJECTOR
  23. 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. 24. INJECTED FUEL NORMAL SUPERCRITICAL
  25. 25. FUEL INJECTOR WORKING
  26. 26. ELECTRONIC CONTROL UNIT
  27. 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. 28. ADVANTAGES • About 50 % increase in efficiency. • Perfect combustion of fuel. • Less pollution.
  29. 29. DISADVANTAGES • • • Costly. Need regular maintenance. ECU can be hacked.
  30. 30. REFERENCES • • • • • • • • Wikimedia. Wikipedia. Team BHP. United States Patents - 2011/0057049 A1. Howstuffworks – Auto. MIT Technology Review. Green Autoblog. SAE INTERNATIONAL.
  31. 31. QUESTIONS ?
  32. 32.  THANK YOU

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