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.
Thank You
