Design & Fabrication of

Road Power Generator

By

Zulfiqar Ali

With

Team

Supervised by

Mr. Abdul Samad Memon

Assistant Professor

Contents Of Presentation

Introduction

Aims, Objectives & Scope

Working Principle of RPG

Methods Used

Main Work

Our Contribution

Conclusion

Introduction- Problem statement

• Is anyone happy with current situation of

electricity in Pakistan???

Introduction- cont.

Project background

• Road power generator was invented by Perry John Underwood Arundel in 2010 .

• The invention relates to a kinetic energy accumulator

Road power generator

• Road power generator captures wasted energy of the

vehicles.

• A research found that 15,000 to 20,000 vehicles travels

along each main road every day. source NSW roads and

traffic authority Australia.

• This volume of vehicle equates to 30,000-40,000 tons of

wasted energy per road per day.

.

Aims of the Project

• For meeting up the regular demand of energy we want to design a system

which will produce electricity without destroying the nature.

• Generating power by sustainable mechanism which can be installed on the

smooth road.

• The implementation of road power generator units on highway and busy

traffic roads of the city.

Project Objectives

The main objectives of road power generator are:

To design and develop a mechanism which minimizes energy crises.

To provide the free electricity to near grid stations, street lights, sign boards,

and traffic signals etc.

To provide electricity to the rural areas too.

To provide electric power to the users without any fuel cost.

To design noise less mechanism.

To make the generator economically.

Have the less impact on the environment.

Scope of The Project

• RPG could be prom (path) for the vehicle manufacturers and the government

to actively persuade production of electric cars and motor bikes.

Working Principle – Block diagram of

project

Activator plate Linear to rotary motion with rack and pinion

mechanism

This small speed converted

into large one by pulleysUsing flywheel for

uniform speed

Flywheel connected to

dc generator or dynamo

Dc controller for

regulating currentInverter for converting 12v DC to 220v AC

Working principle- Mechanism in detail

Bearing

Shaft

Radial arm

Activator plate Spring

Figure aFigure b

Figurer c

Working Principle

Working Principle Of Road power Generator

Rack and pinion , pulleys system

Methods Used

The study of available relevant literature on the topic.

Consultation with the teachers at the Mechanical Engineering Department.

Fabrication of Experimental Model.

Discussion among students.

Fabrication of Experimental

Model

Main Work

Overview of Literature

• Innowattech Piezoelectric Generators

• Electricity Generating by use of roller mechanism

• Electricity Generating by Ramp

Design of Road Power Generator

Overview Of literature

Innowattech Piezoelectric Generators

Fig: Snapshots Representing The Pilot Stages

Overview Of literature- cont.

Electricity generating by use of

roller mechanism.

Electricity Generating by use of

Ramp.

Design Of Road Power Generator

The road power generator (RPG) is basically a renewable energy supply system.

The RPG consists of four main components, with each component performing a

unique task. The four major components of the system are:

Prime mover or activator plate

Rack and pinion, Pulleys and belt drive system

(Amplifier)

Flywheel system

Dynamo or permanent magnet dc generator

RPG- Activator plate

• The material of the activator plate should be

one that produce friction and must sustain high

temperature because if the friction is too high it

start burning.

• We have selected material (nylon plastic)

because it has light weight . And having high

strength .

• In the design of activator plate a gap is provided

so that it moves smoothly .

• Teeth are produced to prevent debris etc.

RPG- Components

• Aluminum material is used to fabricate metallic components.

Flywheel

rack

Pinion

V-Belt

Pulley

Output

terminal

wires

Casing

Shaft

Road Power Generator

Output power calculation

• Before calculating power first we have to calculate force. As we observe that the motion of activator plate is

first backward and the driving force is wheel force which is the function of vehicle net torque, engine speed,

wheel speed, radius of wheel, and efficiency of vehicle.

Therefore formula Fw = (M× Ne × ȵ) ÷(r ×Nw) (a)

Where M= net torque

Ne = engine speed

ȵ= engine efficiency

r = radius of wheel

Nw =wheel speed

• To find applied force of wheel we get data from” transitional controller design for adaptive cruise control

systems.

The simulated results are used as presented in table

Output power calculation-cont.

Time (sec) Velocity (Km/hr) Net torque (N-

m)

Engine speed

(rpm)

Wheel speed

(rpm)

5 72 200 3100 636.9

6 75.6 199 3200 668.7

7 79.2 202 3300 700.6

8 82.8 201 3500 732.5

9 86.8 198 3650 761.33

10 90 199 3780 796.17

11 95.6 195 3840 828.025

12 97.2 195 3920 859.87

13 100.8 191 3995 891.72

14 104.4 186 4130 923.56

15 108 182 4237 955.41

Wheel Force data table 1

Output power calculation-cont.

• With the help of table we can calculate force which is driving force of the plate, we

assumed that efficiency of vehicle is 0.38 and wheel radius is 0.3 m.

• Therefore if we assume that vehicle moves at speed of 90km/hr then by using table 1

and equation (a) we can calculate that driving force is equals to

F=1196.74 N.

• We assume that the distance of the plate = 5cm

Therefore Fw = 1196.74 N

Work done = force × distance

Work done = 1196.74× 0.05 = 59.837 joules

Output power = Work done / sec = 59.837 /60 = 0.99728 watts

Output Power calculation-cont.

Power developed for 1 vehicle passing over the generator is .99728

watts; due to flywheel it delivers power for one minute

continuously. So the Power developed for:

1 hr = 59.83 Watts

24hr = 1.43 KW

Graphs

Graph

Advantages and limitations

The RPG units have minimum visual impact

on their surrounding environment.

Road power generator emits no noise, the unit

has relatively low set up and trailing costs.

Highly efficient in more volume of vehicle

places.

Depending upon the power generator and

number of them, power output is very high.

It has simple construction.

Less area is required.

Easy maintenance.

No consumption of any fuel.

Power will be generated throughout the year.

Advantages

There would be no generation of

power when there is no vehicle

passing over the system.

There would be small jerk feel by

the passengers.

It can sustain limited load of

vehicles.

Power only generated if vehicles

flow is constant and about 10-20

vehicles are required for initial

movement.

Limitations

Our Contribution- Challenges we

faced!!

• Designing of major components of project.

• Fabrication of the mechanical parts.

• Selection of material for making project feasible.

• Survey of major road’s traffic for measuring the volume of vehicles.

• Project economics

• All manufacturing processes like, casting of pulleys and flywheel,

machining of activator plate, shafts, rack and pinion and finishing

assembling of these parts.

• Selection of bearing. Belts, springs and shafts etc.

• Collect data of different vehicles includes weights, speeds.

• Output power calculation ,and dynamics of the project.

Conclusion

o Road Power Generation is a new type of unconventional source of

energy. This uses wasted energy of moving vehicles.

o In coming days, it will prove a great boon to the world, since it will save

a lot of electricity of power plants that gets wasted in illuminating the

street lights, and other road usage.

Thank you.