This document presents information on a CRYOCAR, a vehicle that uses liquid nitrogen as its fuel source. It discusses how liquid nitrogen is produced, the main components of the engine that uses liquid nitrogen, and its working principle. Some key details are provided on the efficiency of liquid nitrogen vehicles, including their mileage and costs. Advantages like reduced weight and refueling time are highlighted, alongside disadvantages such as safety issues. Reasons for the technology not being commercialized yet and possible solutions are also summarized.

1. BHARATI VIDYAPEETH INSTITUTE OF TECHNOLGY
Department of mechanical engineering
Presentation on-
CRYOCAR
Presented By-
Dilip Thakur & Nikhil Boble

2. Introduction:
Use of
alternate
resources
Pollution
Human
greed

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. Why Liquid Nitrogen?
• Liquid nitrogen is the liquefied form of the
element “nitrogen” that is commercially produced
by fractional distillation of liquid air.

5. Dust
Precipitator
Inter
Cooler
Nozzle
Insulated
Chamber
LN2
Turbo
Pumps
Air Inlet
Fractional
distillation
Dewar Flask
Formation Of LN2:
Expansion

6. Main Components of the Engine:
Dewar Flask
Heat Exchanger
Pressurant Bottles
Air Motor
Economizer
Exhaust

8. Working Principle:
Cryogen
storage
vessel
Pump
Economizer
Heat
Exchanger
Expander
Engine

9. 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)

10. Advantages:
• Car is much lighter in
weight
• Refilling its tank takes only
15 minutes.
• Eco-friendly
• Minimal Maintenance
Costs

11. • 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:

12. 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?

13. 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.

14. 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.

15. References:
• “LN2000”, University of Washington Research Team,
Sept. 18, 2007
• “Liquid Nitrogen”, Wikipedia Online Encyclopedia.
• www.slideshare.com
• www.authorstream.com
• www.royalauto.in

16. THANK
YOU!