COMPRESSED AIR VEHICLE: VIEW & WHY NOT SO IN USE

Submitted to:Mr. Ravinder Upadhaya (HOD)Dept. of Mechanical Engg.

Submitted By:Apoorva Rawat Mechanical 4th yearME006

SEMINAR-

Introduction

major problem - air pollution

To reduce the problem -alternative fuel is compressed air

The air powered car - low pollution or zero pollution cars

safe to use and environment friendly

Non Renewable Expensive Polluted

Problem With GASOLINE

Alternative energies

Air EnergySolar Energy Electric Energy

compressed-air vehicle:A compressed-air vehicle - powered by

an air engine, using compressed air, which is stored in a tank.

Compressed air vehicles (CAV) use the expansion of compressed air to drive their pistons.

One manufacturer claims to have designed an engine that is 90 percent efficient.

6

Guy Negre presenting the air car- AIRPOD

Summary – Energy Efficiency

Diesel

Gasoline

Battery Electric

Compressed Air

0.00 0.10 0.20 0.30 0.40

0.40

0.15

0.19

0.05

Efficiency (Fossil Fuel to Motor Out)

Conclusion: Compressed air vehicles are on the low end of efficiency, diesel is unmatched for converting fossil fuel to usable motor power

Summary – Carbon Emissions

Diesel

Gasoline

Battery Electric

Compressed Air

0 2 4 6 8 10 12 14

1.7

1.7

3.2

12.5

Carbon Footprint (kg / KWh)

Conclusion: Compressed air vehicles produce lots of CO2 when powered by fossil fueled power plants

Summary – Energy Volumetric Density

Diesel

Gasoline

Battery Electric

Compressed Air

0 10,00020,00030,00040,000

36,400

32,230

1,080

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Energy Density (MJ/meter cubed)

Conclusion: Compressed air energy storage systems are not able to store a great deal of energy, limiting their range.

Summary – Technology Cost Analysis

Diesel

Gasoline

Battery Electric

Compressed Air

$0 $50 $100 $150 $200

$39

$28

$62

$167

Technology Cost (Dollars/kW)

Conclusion: Compressed air vehicles are on the high end in terms of cost to produce power due to low power output.

Technical benefits:The temperature of the engine -lessSmooth working- less wear and tear of the

components.no possibility of knocking.No need of cooling systems and spark plugs

or Complex fuel injection systemAir, on its own, is non-flammable, abundant

economical, transportable, storable and, most importantly, nonpolluting.

reduces the cost of vehicle The mechanical design of the engine is

simple and robust. Low manufacture and maintenance costs as

well as easy maintenance. Lighter vehicles would mean less abuse on

roads, thus, resulting in longer lasting roads. The price of fueling air powered vehicles will

be significantly cheaper

WHY NOT IN USE ?

Disadvantage Less power outputProbability of air leakage.Less air station are available. Biggest disadvantage is the energy needed

to compress the air is greater than the energy stored

Cont…

Refueling the compressed air container take as long as 4 hours

Tanks get very hot when filled rapidly. complex propulsion system.Passenger compartment heating is more

difficult since the propulsion system does not provide a source of waste heat.

Power Transmission:

Air Compressor Solenoid

PistonsCrank Shaft Wheels

Cont…

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What’s CAPE..?A power producing device consuming

compressed air.

Compressed air is expanded inside an engine cylinder to produce torque.

It produces no pollution.

It consumes no fuel; only the compressed air.

Building Compressed Air Engine From Conventional Engine.

To delete the power stroke.

Valve timing. Alterations in

Camshafts.Change in intake valve.

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Benefits of CAPE

Air Engine

Uses Only Air

No Need of Fossil

Fuels

Needs Less Maintenan

ce

Low in Cost

High Power to Weight

Ratio

Zero Pollution

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Future Scope

Future of CAPE

Multi-cylinder Engines

Recirculation of Air

Higher Torque

and Power

Improved method of Controlling

Valve Timing

Conclusion:vehicles running on only compressed air

might seem like a distant dream they still have public interest due to

their environmental friendly nature. Efforts should be to make them light,

safe, cost effective and economical for deriving.

Electric-powered cars and bikes -strong competition

not deterred inventors from working on it.