The document summarizes a student project to design and build a solar Stirling engine with solar tracker. It includes sections on background, methodology, components, preliminary results showing 520 RPM generation, features such as being environmentally friendly and cheap electricity production, applications, and a conclusion that increasing the size could generate up to 5kw of electricity at low cost. It is presented by 6 students to their internal and external advisors.

1. Solar Stirling Engine
with Solar Tracker
Mid Year Presentation
Department of Electronic Engineering

2.  Internal Advisor:
Sir Muhammad Salman
 External Advisor:
Mr. Muhammad Asif
 Group Members:
Adil Feroze Sethi (2009-EE-230)
Asad Abbas (2009-EE-
231)
Uzair Ahmed (2009-EE-233)
Umer Altaf Hussain (2009-EE-
243)
Imran Imtiaz Butt (2009-EE-257)
Shahyan Iqbal Arain (2009-EE-
266)

3. Introduction
 Global warming has increased the demand
for green energy production by renewable
sources such as solar power.
 The power shortage in Pakistan increasing
day by day, and there is no short term and
long term plan available to overcome this
problem in this scenario.
 Technology is vastly being cultured and
embedded in our day-to-day activities.
 To overcome this situation, solar energy is
the most efficient way to generate
electricity, but solar panels are much
expensive and our country is also facing
financial crisis now-a-days.
 Best way to generate electricity is through
heat energy, and our project depends on the
heat energy. The Solar Stirling Engine that
we are designing is the optimum and
convenient solution for power generation.

4. Background
 The Stirling engine was invented by Robert
Stirling in1816. At that time, the Stirling
engines were recognized as a safe engine
that could not explode like steam engines.
But the Stirling engine had been made a
poor production, in comparison to Otto
engine and Diesel engine.
 The Stirling engine had been started to
develop rapidly in 1973.
 Still more, energy and environment problems
have become one of the most important
social problems at present.
 Then the Stirling engine is being noticed
now. The reasons are
 High thermal efficiency
 A great variety of the fuel
 Low emission and low pollution

5. Methodology
 The basic idea is to convert heat energy into
mechanical energy and then mechanical
energy into electrical energy. And to utilize
more and more sun energy, the solar tracker
can makes our work easy.

6. Methodology
 Design Phase:
Design phase includes the following:
 Designing engine’s parameters
 Parabolic surface designing
 Designing Frame structure

7. Methodology
 Testing Phase:
The testing phase follows:
 Engine testing without load
 RPM measurement
 Engine testing with load

8. Block Diagram

9. List of main
components
 Flywheel
 90º Crankshaft
 Piston
 Displacer
 Ball bearings
 Engine sealing
 Alternator

10. Preliminary result
 Stirling engine is working with load
 Generating 520 RPM

11. Features
 The features of our project are given below:
 Environment friendly
 Cheap electricity generation
 Less maintenance
 Digital display
 More reflection of sunlight due to shiny
aluminum sheets
 Light weight due to aluminum
 Effective and efficient
 Easy to implement
 More utilization of sunlight due to the solar
tracker

12. Application
 The applications of our project are given
below:
 Refineries
 Domestic use
 Commercial buildings
 Bill Boards
 Traffic signals
 Street lights
 Space research

13. Time and Cost
analysis
 This entire project has a maximum
completion period of about 7 to 8 months.
 The purchasing of the required necessities
and the designing of the hardware model
have been completed during the first few
weeks of the project initiation.
 Placement of orders for the implementation
and manufacturing of engine’s design
 Manufacturing period of engine – 1 month
 In the mid of November, the project will be in
its final phase of completion and will almost
be ready to be presented to the final year
committee with the documentation. We
therefore hope to complete our entire project
latest by the end of November.
 The entire project is liable to change but the
estimated project cost is around Rs. 70, 000
– 100, 000, depending on the equipment
cost fluctuation and the cost spent in testing
and implementation.

14. Conclusion
 After discussing our project we concluded
that if we increase the size of the parabolic
surface and placing the powerful Stirling
Engine, we can easily increase our
generating capacity upto 5kw.
 Hence it can be the milestone for generating
electricity at lower cost in our beloved
country Pakistan.
Pakistan Zindabad