C20

EFFICIECY ENERGY COOKING COMPETITION

SEKOLAH MENENGAH KEBANGSAAN BUKIT JALIL

BUKIT JALIL GOLF & COUNTRY RESORT 57000 KUALA LUMPUR

GROUP MEMBERS:

LOEGANRAJ GANESHA A/L SUNDARAJ

NADIA AMIRA BINTI ROZALI

DAYAANAND A/L PARAMALINGAM

OBJECTIVES

MATERIALS USED POLY FOAM(1200MMX600MMX12MM) D’ARTE BLACK MATBOARD(A1) SPRAY PAINT(BLACK NO.30 AND FLAT NO.29) SKEWERS PEBBLES BINDING TAPE CONCAVE LENS FOIL CHROME CUTTER SCISSORS HOT GLUE METAL POT 30 CM RULER ERASER BLACK,BLUE AND RED PENS PENCILS

PROBLEM STATEMENTS

ABSTRACT

BUILD AN ENERGY EFFICIENT COOKER THAT IS BOTH PORTABLE AND ENVIRONMENTALLY FRIENDLY BY GATHERING THE SUN’S RAYS FOR HEATING,COOKING OR STERILIZING WATER.THIS CAN BE DONE USING LOW COST TECHNOLOGY BY GATHERING SIMPLE MATERIALS ACCESSIBLE DAILY IN HOPE FOR A GREENER AND CLEANER.

GALLERY

SCIENTIFIC THEORY(ABSORPTION OF HEAT)

WHEN THE SUNLIGHT HITS THE ALUMINIUM FOIL THAT COVERS THE TOP PART OF THE PARABOLIC DISH, IT WILL BE REFLECTED TO THE POT WHICH IS AT THE CENTRE OF THE DISH.

THE CONCAVE LENS WILL HELP FOCUS THE LIGHT FROM THE SUN ONTO THE SURFACE OF THE POT TO HELP IT BOIL FASTER.

THE PEBBLES UNDERNEATH THE POT WILL HELP SPREAD THE HEAT EVENLY THROUHOUT THE BASE OF THE POT.

THE BLACK METAL POT WILL ABSORB THE HEAT FROM THE SUN AND TRANSFER IT TO THE WATER INSIDE IT.

AFTER ALL THIS TAKES PLACE, THE WATER WILL THEN BOIL.

COLOUR CHOICE EXPLANATION

THE POT AND STAND(BLACK):

BLACK AND DULL SURFACES ABSORB HEAT BETTER THAN BRIGHT AND SHINY SURFACES.

THE TOP PART OF THE PARABOLIC DISH(SILVER):

BRIGHT AND SHINY SURFACES REFLECT HEAT BETTER THN BLACK AND DULL SURFACES.

TRIAL RECORD

NUMBER DATE TEMPERATURE(DEGREES CELSIUS)

DURATION NOTES

1 19/8/2015 76.7 30 MINUTES SPRAY POT BLACK

2 26/8/2015 81 30 MINUTES USE LENS

3 5/9/2015 86.2 30 MINUTES SUCCESS

CONCLUSION

THIS PARABOLIC DISH WHICH IS BOTH PORTABLE AND ENVIRONMENTALLY FRIENDLY IS ENERGY EFFICIENT CAN BE MADE WITH SIMPLE MATERIALS.

THIS DEVICE CAN HELP PREVENT WATERBORNE DISEASES CAUSED BY LACK OF CLEAN WATER IN RURAL AREAS.

THIS DEVICE SAVES MONEY AS IT USES THE SUNLIGHT WHICH DOES NOT REQUIRE ANY PAYMENT.

THIS DEVICE HAS THE POTENTIAL TO REVOLUTIONISE THE COOKING INDUSTRY WITH THE RIGHT RESEARCH AND DEVELOPMENT BEHIND IT.

IT IS SIMPLE AND EFFECTIVE(ANYONE CAN MAKE AND USE IT)