DESIGN AND ANALYSIS OF A TWO DESIGN AND ANALYSIS OF A TWO STROKE I.C.ENGINESTROKE I.C.ENGINE

Prepared by:Suraj JoseSuraj JoseAmit ModiAmit ModiVishal PanchalVishal PanchalVishal ModhaVishal Modha

Guided by:Mr. H. K. Solanki

DEPARTMENT OF MECHANICAL ENGINEERING

MAHATMA GANDHI INSTITUTE OF MAHATMA GANDHI INSTITUTE OF TECHNICAL EDUCATION AND RESEARCH TECHNICAL EDUCATION AND RESEARCH CENTRE, CENTRE, NAVSARI, GUJARAT.NAVSARI, GUJARAT.

Peak Oil

CRY-SItuationS

Where we Are Now

Co2 @ 383ppm

The effects could be even more Devastating, causing to

holocausts

Worried of running out of petrol every time you get on the roads???

Just Relax!!! Because we are introducing a concept which will increase the thermal efficiency of the engine upto some extent.

By introducing our concept, we are able to increase the temperature of the inlet air by using the concept of a non contact type heat exchanger by utilizing the temperature of exhaust gases.

INTRODUCTIONINTRODUCTION

Minimize the requirements for addition of new complicated parts particularly moving parts.

Minimal interference in the moving parts, mechanisms and control systems.

Maximize the positive effect from operation of strokes of the existing engines.

THE MAIN AIMS OF THE PROJECTTHE MAIN AIMS OF THE PROJECT

Easy to introduce into the vehicle with

minimum cost.

Achieve optimum possible work out

from the vehicle.

It should be eco-friendly (i.e. minimum

pollution).

LOSSES IN EFFICIENCYLOSSES IN EFFICIENCY

CONCEPTCONCEPT

CROSS-SECTION OF THE MODIFICATION DONE INSIDE CROSS-SECTION OF THE MODIFICATION DONE INSIDE THE SILENCER BODY.THE SILENCER BODY.

VIEW OF THE MODIFICATION DONE ON THE EXHAUST SYSTEMVIEW OF THE MODIFICATION DONE ON THE EXHAUST SYSTEM

COMPONENTS USED FOR THE MODIFICATION PURPOSE

Cross-section of Cross-section of the Silencer Body.the Silencer Body.

Air filterAir filter

ElbowElbowC-clampC-clamp

Copper TubeCopper Tube Flexible PipeFlexible Pipe

COMPONENTS USED FOR PERFORMANCE CHARACTERISTICS & TESTING PURPOSE

BuretteBurette

Burette StandBurette Stand

T- JointT- Joint

Flexible PipeFlexible Pipe

Temperature Temperature IndicatorIndicator

CONSTRUCTIONCONSTRUCTION

MODIFICATION DONE WITH THE SILENCER BODY

MODIFICATION DONE ON THE AIR FILTER BODY

Speed,

km/hr

Time for mass flow

rate of 20 ml of fuel,

sec

Temperature

at inlet to air

filter, ˚C

20 113.4 38

25 74 39

35 63 43

TESTING & PERFORMANCETESTING & PERFORMANCE

Observation Table with Increasing the Inlet Air TemperatureObservation Table with Increasing the Inlet Air Temperature

Speed,

km/hr

Efficiency(η),

%

Heat Supplied,

KJ/Kg

20 68.32 5.2348

25 68.24 8.0232

35 67.85 9.4248

Result with increasing inlet Air TemperatureResult with increasing inlet Air Temperature

Speed, km/hr

Time for mass flow

rate of 20 ml of petrol

to flow

Temperature

at inlet of air

filter

20 173 30

25 165 30

35 141 30

Observation Table Without Increasing the Inlet Observation Table Without Increasing the Inlet Air Temperature Air Temperature

Speed,

km/hr

Efficiency (η),

%

Heat Supplied,

KJ/Kg

20 69.15 3.4326

25 69.15 3.5988

35 69.14 4.2106

Result without increasing the inlet air Result without increasing the inlet air temperaturetemperature

INLET AIR TEMPERATURE V/S SPEEDINLET AIR TEMPERATURE V/S SPEEDINLET AIR TEMPERATURE V/S SPEEDINLET AIR TEMPERATURE V/S SPEED

MASS FLOW RATE V/S SPEEDMASS FLOW RATE V/S SPEEDMASS FLOW RATE V/S SPEEDMASS FLOW RATE V/S SPEED

EFFICIENCY V/S SPEEDEFFICIENCY V/S SPEEDEFFICIENCY V/S SPEEDEFFICIENCY V/S SPEED

HEAT SUPPLIED V/S SPEEDHEAT SUPPLIED V/S SPEEDHEAT SUPPLIED V/S SPEEDHEAT SUPPLIED V/S SPEED

ADVANTAGESADVANTAGES

Ignition lag time decreases.

Uniform air-fuel mixtures obtained.

Modification is not complicated.

One time investment.

Easily replaceable if damaged.

Cost efficient.

DISADVANTAGESDISADVANTAGES

This concept cannot be applied to Compression

Ignition Engines (diesel engines).

The design and structure of the silencer body

becomes a bit complicated.

Instant result may not be obtained.

A decrease in the efficiency may be observed if

size of the copper tube is not selected properly.

CONCLUSIONSCONCLUSIONS

After performing the tests on the vehicle, and from the observations made, we can conclude that the efficiency does not increase as per the theoretical concept due to the following reasons: Variation in the actual air filter tube size and used copper tube.

Due to improper wounding of copper tube.

Due to the rise in air temperature, the volume of fuel is increased, as a result a rich mixture is obtained.

FUTURE SCOPEFUTURE SCOPE

We are confident that the efficiency would increase if further changes can be carried out in the project.The major research options which are applicable to this project are as follows:

Use copper tube of different size diameter.

Check the Emission and the noise level.

Use of the temperature control device to vary the temperature as desired.

To try different materials to achieve higher heat transfer.

To check the compatibility with other vehicles.