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 THEORYThe 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 ENERGYTHE SUN HEAT COOKER HEAT ENERGY
DESIGN COOKER POTSTRINGALUMINIU M FOIL
TRANSPAREN T PLASTIC BLACKMOUNTING BOARD
EXPLANATION ON THESELECTION OF MATERIALSAND COLOURMATERIALS FUNCTIONMOUNTING BOARD WALL AND BASE FOR THE PANEL SOLAR COOKERALUMINIUM FOIL TO REFLACTED SUNLIGHTSTRING TO HOLD THE PANEL SOLAR COOKERTRANSPARENT PLASTIC TO TRAPPED THE HEATCOOKING POT TO PUT THE WATERCOLOUR FUNCTIONBALCK (MOUNTING BOARD) TO ABSORB THE HEATSHINY (ALUMINIUM FOIL) TO REFLACTED THE SUNLIGHT
THE PROCESS IN MAKINGTHE PANEL SOLAR COOKER
THE PROCESS IN MAKING PANEL SOLAR COOKER
TRIAL RESULT TRIAL 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 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 ANDCONCLUSION 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.