This document provides an overview of compressed air engines. It begins with an introduction describing how compressed air engines can help reduce environmental problems from fossil fuel usage. It then defines what an engine is and provides a brief history of compressed air engines dating back to the late 1600s. The document goes on to describe how a compressed air engine works, involving intake and exhaust valves and the conversion of compressed air into mechanical motion. It also discusses Tata Motor's plans to develop an Indian car powered by compressed air. Advantages include not requiring gasoline while disadvantages include limited refueling speed and capacity. The conclusion states compressed air technology could be a viable alternative fuel option.

1. Guide By- Submitted By-
Mr. Gaurav Upadhayay Saurabh Singh
(Assistant professor) M.E-3B

2.  INTRODUCTION
 WHAT IS AN ENGINE
 HISTORY OF COMPRESSED AIR ENGINE
 COMPRESSED AIR EGINE
 WORKING AND PRINCILE
 AIR COMPRESSED ENGINE IN INDIA
 ADVANTAGES
 DISADVANTAGES
 CONCLUSION
 REFERENCES

3. Nowadays, automobiles consume a large number of
fossil fuels. However, the consumption of fossil fuels
has brought many serious environmental problems,
such as global warming, ozone layer depletion and
fine particulate matter. To avoid such environmental
problems, renewable energy has been applied to
automobiles. A compressed air engine of a renewable
energy vehicle is introduced.

4. An engine is a device which transform one form of
energy into another form.
Heat engines, including internal combustion engines
and external combustion engines (such as steam
engines) burn a fuel to create heat, which then creates
motion.

5.  Compressed air has been used since the 19th century
to locomotives and trains.
 Dennis Papin apparently came up with the idea of
using compressed air (Royal Society London, 1687).
 In 1872 the Mekarski air engine was used for street
transit, consisting of a single stage engine.

7.  A compressed air engine is a type of motor which
does mechanical work by expanding compressed air.
 A compressed air engine generally convert the compressed air
energy to mechanical work through either linear or rotary
motion.
 Linear motion can come from either a diaphragm or piston
actuator, while rotary motion is supplied by either a vane type
air motor or piston air motor.

8.  compressed air enters the cylinder via the intake valve because
of the pressure difference, drives the piston downward. Then
the intake valve closes when the crank reaches a certain angle.
While the compressed air continues to push the piston down
and output mechanical work. When the movement of piston is
close to the bottom dead center (BDC) the exhaust valve
opens, so that the compressed air with residual pressure is
expelled by the impetus of the piston. After the piston moves
back to the top center (TDC), the CAE completes a work
cycle.

9. 1- INTAKE PORT
2- EXHAUST PORT
3- CYLINDER
4- PISTON
5- CONECTING ROD
6- CRANK SHAFT

13.  Tata Motors has signed an agreement with Motor
Development International of France to develop a car
that runs on compressed air, thus making it very
economical to run and almost totally pollution free.
Although there is no official word on when the car
will be commercially manufactured for India.

15.  It uses no gasoline or other bio-carbon based fuel.
 Compressed air engines reduce the cost of vehicle
production, because there is no need to build a cooling
system, spark plugs.
 Reduction or elimination of hazardous chemicals such as
gasoline.
 The engine runs on cold or warm air, so can be made of
lower strength light weight material.

16.  Refueling takes 3-4 hours
 Limited capacity of storage tanks.
 Limited speed range (110-140 Km).
 When air expands in the engine it cools dramatically
and must be heated to ambient temperature.
 Since this engine is not yet common it cannot be
refilled at home but needs a compressor.

17.  Nowadays the need for energy continuously
increases, and we are using the conventional
resources at an alarming rate hence an alternative fuel
is much required and Compressed Air Technology
can be one of the best alternative, as the pollution
caused is zero and it is also cost efficient.

18.  1- Gairns J F 1904. Industrial locomotives for mining, factory, and allied uses. Part
II. Compressed air and internal combustion locomotives Cassier's Mag. 16363-77.
 2- SAE 1999-01-0623, Schechter.M., “New Cycles for Automobile engines.
 3- ISSN: 2456-1843, STUDY AND FABRICATION OF COMPRESSED AIR
ENGINE Ruby Sharma ,Naveen Singla, vol.1, January 2015, pp:27.
 4- HE Wei et al. “Performance study on three-stage power system of compressed
air vehicle based on single-screw expander” science china, technological sciences,
August 2010, pp:2299–2303.
 5- Huang, C.H., Hu, C.K., Yu, C.J., et al. (2013) Experimental Investigation on the
Performance of a Compressed-AirDriven Piston Engine. Energies, 6, 1731-1745.
http://dx.doi.org/10.3390/en6031731
 6- Tokhi, M.O., Al-Miskiry, M. and Brisland, M. (2001) Real Time Control of Air
Motors Using a Pneumatic H-Bridge.Control Engineering Practice, 9, 449-457.
http://dx.doi.org/10.1016/S0967-0661(00)00122-2

19.  7- Matt Campbell (November 3, 2011). "The motorbike that runs on air". Sydney
Morning Herald. Retrieved 2011-11-07.
 8- "Bosch Rexroth Named Subcontractor for Hydraulic Hybrid Refuse Truck Field
Test" (Press release). Bosch Rexroth Corporation. May 16, 2007. RetrievedJune
15, 2012.
 9- Amir Fazeli et al. “A novel compression strategy forair hybrid engines” Applied
Energy 88 (2011) ,8March 2011,pp:2955–2966.

20. THANK YOU.