It is a Less Pollutant(ECO FRIENDLY) Vehicle which is run with the help of Nitrogen Gas.

1. Low Emission Vehicles
PRESENTED BY
 SHARAD MIRMAL
 SHASHI KUMAR
 SHISHU PAL
 SHEKHER SINGH CHAUCHAN
 SHAILESH PRATAP SINGH
B.TECH(Mechanical)
3rd year

2. INTRODUCTIONof liquid nitrogen
vehicle
 Comes in the scene in September1990.
 An effort to improve local air quality
 (CARB) California Air Resources Board.
 Established several categories of
emission standards
Zero-emission vehicle (ZEV).

3.  the battery powered electric vehicle
is the only commercially available
technology that can meet ZEV
standards.
 High initial cost.
 Emission of hazardous gasses.
 Serious health problems arises.
 Causes ozone depletion.
 Aching lungs, wheezing, coughing and
headaches, skin diseases.

4. Continue….
 Concept of Liquid nitrogen vehicle being
investigated by Drs. Carlos A. Ordonez,
Mitty C. Plummer, and Richard F. Reidy
at the University of North Texas.
 Cryogenic heat engine.
 Zero Emission Vehicle.
 Liquid nitrogen used as a fuel.

5. COMPONENTS
 Liquid Nitrogen Storage Tank
 Economizer
 Heat Exchanger
 Expander
 Exhaust valve

6. WORKING
 The cryogenic automobile is a ZEV.
 The liquid nitrogen is drawn from a tank.
 Pumped up to high pressure.
 Vaporized and superheated in a heat
exchange system (economizer).
 High pressure vapors goes into the
expander.
 Expander converts it into low pressure
gas.

7.  High pressure and ambient temperature
gas-system’s motive work.
 Gas is exhausted back to atmosphere.

8. ---
Flow diagram

9. Schematic vehicle layout

10. ADVANTAGES
 Lower maintenance costs
 Liquid nitrogen tanks can be disposed
of or recycled with less pollution than
batteries reducing pollution
 Eco-friendly vehicle.
 The LN2Car can travel 24 km on a full
(20 L) tank of liquid nitrogen going 20
mph.
 Maximum speed is over 56km/h

11. Contd…
 Pollution emitting combustion is not
required.

12. DISADVANTAGES
 Huge energy is used to liquify nitrogen,
which in turn provides the energy to run
the motor.
 Liquid nitrogen is not yet available in
public refueling stations.
 Liquid nitrogen tank must be insulated.
 Leakage of nitrogen can not be easily
detected.

13. Contd…
 Nitrogen is a colorless and odourless
gas that already makes up 78 % of air,
such a change would be difficult to
detect.

14. IMPROVEMENTS
 Liquid nitrogen tanks must be insulated
properly.
 Power from nuclear power plants could
produce enough energy to condense
nitrogen.
 Must establish public refueling tank.

15. REFERENCES
 The University of Washington and
University of North Texas.
 J.L. Dooley, and R.P.Hammond,
(“The Cryogenic Nitrogen Automotive
Engine”)

16. THANK YOU….