cooking
TRANSCRIPT
Portable cooking with nature
SMK ASAJAYA GROUPS:
1. MUHD NADZMI NAZRIN BIN MONIL2. AIMI ALIAA BINTI SBELI3. AINUR ATHIRAH BINTI AMIN
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.
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.
ObjectivesThe 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
SPECIFIC OBJECTIVESThe 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.
SCIENTIFIC THEORY
The collection of heat : concentrate sunlight into the panel
solar cooker Convert sunlight to heat Trapping heat using a transparent
plasticGreen house effect RADIATES INVOLVES
THE SUN HEATSOLAR
COOKERSOLAR ENERGY HEAT ENERGY
DESIGN
ALUMINIUM FOIL
STRING
COOKER POT
BLACK MOUNTING
BOARD
TRANSPARENT PLASTIC
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
THE PROCESS IN MAKING THE PANEL SOLAR COOKER
THE PROCESS IN MAKING PANEL SOLAR COOKER
TRIAL RESULTTRIAL 1(22 APRIL 2012/MONDAY)
TIME TEMPERATURE (OC)
1255 HOURS 30
1300 HOURS 32
1315 HOURS 33
1345 HOURS 35
1355 HOURS 37
1400 HOURS 38
TRIAL 2(23 APRIL 2012/TUESDAY)
TIME TEMPERATURE (OC)
1100 HOURS 30
1115 HOURS 37
1125 HOURS 39
1140 HOURS 41
1155 HOURS 46
1205 HOURS 50
1215 HOURS 53
1225 HOURS 55
1235 HOURS 55
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
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;
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;
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.
Thank you