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Cryocar ln2 vehicle


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Liquid Nitrogen Vehicle ....its woks on cryogenic liquid

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Cryocar ln2 vehicle

  1. 1. BHARATI VIDYAPEETH INSTITUTE OF TECHNOLGY Department of mechanical engineering Presentation on- CRYOCAR Presented By- Dilip Thakur & Nikhil Boble
  2. 2. Introduction: Use of alternate resources Pollution Human greed
  3. 3. CRYOCAR uses Cryogenic fuel like Liquid Nitrogen What is liquid nitrogen vehicle?  Cryogenic fluid as a working fluid  Cryogenic substance is used as a heat sink  CRYOGENICS
  4. 4. Why Liquid Nitrogen? • Liquid nitrogen is the liquefied form of the element “nitrogen” that is commercially produced by fractional distillation of liquid air.
  5. 5. Dust Precipitator Inter Cooler Nozzle Insulated Chamber LN2 Turbo Pumps Air Inlet Fractional distillation Dewar Flask Formation Of LN2: Expansion
  6. 6. Main Components of the Engine: Dewar Flask Heat Exchanger Pressurant Bottles Air Motor Economizer Exhaust
  7. 7. Working Principle: Cryogen storage vessel Pump Economizer Heat Exchanger Expander Engine
  8. 8. Efficiency:  The first LN2 car could travel 79 miles (127.58 km) on a full 24 gallon (90 liter) tank of liquid nitrogen going 32 Kmph.  Its maximum speed was over 56 Kmph. After further Researches, the Efficiency has improved as follows:  Power : 78KW or 104.5bhp @ 97Kmph  400 Liters (106 gallon) gives a mileage of 560Km and weighs 280Kg  Operating Cost is around 2.4cents per Km( Re 1 per Km)
  9. 9. Advantages: • Car is much lighter in weight • Refilling its tank takes only 15 minutes. • Eco-friendly • Minimal Maintenance Costs
  10. 10. • Requires a lot of energy • Gas is so cold that the moisture in the surrounding air would condense on the outside of the tubes. • Safety issue • Leakage of N2 leads to prove fatal. Disadvantages:
  11. 11. Even though the technology is 10 to 12 years old, still it has not come to the market for two reasons: • Safety issues have not been sorted out as yet. • Lack of funds for research. Why not commercialized?
  12. 12. Probable Solutions: • A tube within a tube design. • N2 passes back and forth inside a set of three nested tubes. • By the time it reaches the outermost tubes, the N2 is warm enough that the exterior wall of the tube remains above the freezing point of water.
  13. 13. Conclusion: • In a real sense, the more such vehicles are used, the cleaner the air will become. • In addition to the environmental impact of these vehicles, refueling using current technology can take only a few minutes, which is very similar to current gas refueling times.
  14. 14. References: • “LN2000”, University of Washington Research Team, Sept. 18, 2007 • “Liquid Nitrogen”, Wikipedia Online Encyclopedia. • • •
  15. 15. THANK YOU!