comparative study on car interior temperature based on
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Physics STPM presentationTRANSCRIPT
COMPARATIVE STUDY ON CAR INTERIOR TEMPERATURE BASED ON DIFFERENT MATERIAL ON CAR WINDOWS
COMPARATIVE STUDY ON CAR INTERIOR TEMPERATURE BASED ON DIFFERENT MATERIAL ON CAR WINDOWS
BY ONG KAH HONG & TAN SIN YEE
IntroductionAluminiumWhite ClothBlack ClothWindow tinted film
Problem StatementWhich low emissivity material has the highest thermal reflectivity?
Set-up of apparatus
ResultsMaterialAluminiumWindow Tinted FilmInitial Temperature(C)33.033.033.033.033.033.033.033.0Final Temperature(C)37.035.036.036.038.039.040.039.0Change in Temperature(C)3.06.0Reflectivity(%)90%82%MaterialBlack ClothWhite ClothInitial Temperature(C)33.033.033.033.033.033.033.033.0Final Temperature(C)44.046.045.045.040.042.042.541.5Change in Temperature(C)12.08.5Reflectivity(%)64%74%Aluminium
For the Apollo program, NASA helped develop a thin aluminum metalized film, which reflected 95% of the radiant heat. A metalized film was used to protect spacecraft, equipment, and astronauts from thermal radiation or to retain heat in the extreme temperature fluctuations of space.ConclusionFrom lab experiment results,black cloth(dark colour) has low thermal resistivity compare to white cloth(light colour).Aluminium is a low emissivity material which has the highest thermal reflectivity among cloth,aluminium and window tinted film.
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