PASCO Specialty & Mfg. ENERGY SOLAR TRANSFER ET-8593 Manuel D’Utilisation

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Note: Watch the angle of the sun.  The angle of the sun must be 90 
degrees to the box while you are collecting data. You might have to 
adjust the angle of the box during the run.

6.  Repeat step 5 with the plastic cover off.

1.  Look carefully at both curves at the start of the run.  The slope (rate of 

heating) for the uncovered box should be larger than for the covered 
box.  Why?

2.  Which has the highest final temperature, the covered box or the 

uncovered box?  

3.  Which curve has a more constant heating rate? Why?

Compare the aluminum side up to black side up with the cover on.  
Which surface is a better absorber of energy?  Look at not only how 
fast the plate heats up, but collect data long enough to look at the final 
temperature.  The black side should heat up much faster than the 
aluminum side, but does the black side reach a higher final 
temperature?

For both sides (aluminum and black), start with the plate hot (Let it sit 
in the sun), and then move the plate to the shade to watch it cool.  
Which surface cools faster?  Which is a better emitter of energy?  Try 
cooling both with and without the cover on the Solar Box.

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