1) The students designed a portable solar panel cooker that uses sunlight as an alternative energy source to cook.
2) The cooker works by concentrating sunlight onto a black panel using aluminum foil reflectors, which absorbs the light and converts it to heat energy. A transparent plastic traps the heat inside.
3) During trials, the cooker was able to reach temperatures over 50°C, which is hot enough to boil water, demonstrating its ability to harness solar energy for cooking purposes.
2. ABSTRACT
Objectives of the science and tecnology carnival is to
create the culture of innovation and designation among
the students.
It is perfectly feasible to power the cooker by heat
energy.
Can be convert to heat energy.
Work based on the the basic principle, which convert
sunlight to heat energy and retain the heat for cooking.
the panel solar cooker surface must be able to absorb
effectively and reflect sunlightinto the cooker
A transparent heat trap is needed on top of the cooker
to retain the heat, and an insulator below to trap the
heat.
Should be use on sunny day
Between 10.00 a.m to 12.00 p.m.
3. INTRODUCION
Source of energy – diesel, petroleum, gas may
not last very long in future
Renewable energy – not subject to
deplecation
Solar energy – source of renewable energy
Panel solar cooker – use sunlight as an
alternative source to cook
- should be protected from strong
wind
- made from black mounting board
which is able to absorb heat
- has a portable design makes it easily
handled and transferred from a place to
another place.
4. Objectives
The objectives of the project are:
To create the culture of innovation and
designation among the students;
To instill the responsibility among
students to use energy sources
effeciently;
To increase the creativity and
compotitiveness among the students;
To use the solar energy as a
alternative source to produce heat
energy
5. SPECIFIC OBJECTIVES
The project was carried out specifically :
To increase the student’s understanding
on the science process, manipulative
skills and science and technology
concepts.
To desing the cooker that can be used
sunlight energy opltimally and convert
this energy to heat energy.
To design a panel solar coooker that is
able to reflect the sunlight onto the
cooker, absorb and retain the heat in the
cooker.
6. SCIENTIFIC THEORY
The collection of heat :
concentrate sunlight into the panel solar
cooker
Convert sunlight to heat
Trapping heat using a transparent plastic
Green house effect
RADIATES SOLAR INVOLVES SOLAR ENERGY
THE SUN HEAT
COOKER HEAT ENERGY
9. EXPLANATION ON THE
SELECTION OF MATERIALS
AND COLOUR
MATERIALS FUNCTION
MOUNTING BOARD WALL AND BASE FOR THE
PANEL SOLAR COOKER
ALUMINIUM FOIL TO REFLACTED SUNLIGHT
STRING TO HOLD THE PANEL SOLAR
COOKER
TRANSPARENT PLASTIC TO TRAPPED THE HEAT
COOKING POT TO PUT THE WATER
COLOUR FUNCTION
BALCK (MOUNTING BOARD) TO ABSORB THE HEAT
SHINY (ALUMINIUM FOIL) TO REFLACTED THE
SUNLIGHT
14. TRIAL 3(24 APRIL 2012/WEDNESDAY)
TIME TEMPERATURE (OC)
1455 HOURS 30
1505 HOURS 37
1525 HOURS 43
1535 HOURS 47
1550 HOURS 55
1600 HOURS 55
1610 HOURS 57
15. DISCUSSION AND
CONCLUSION
Nowdays we used electrical energy
power by diesel, petroleum and gas;
This energy may deplete in the future;
So, we have to used the renewable
energy such as sunlight;
We have make a portable panel solar
cooker to solve the problem;
This solar cooker functioning on the
sunny day;
16. This solar cooker change energy from the
sun to heat energy which is used to heat
the water;
Dark and dull are a good absorber of heat.
Meanwhile, white and shiny surface is a
better reflector of heat;
So, we choose black mounting board to
absorb heat and shiny materials(
aluminium foil) to make the reflector;
The reflector is to reflect the light to our
panel solar cooker;
17. This panel solar cooker collect and trap
the energy from the sun so that it always
hot;
The cooker can reach higher
temperatures, which is enough to boil
water.