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Week 4: Lab

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This week, prototype 3 and 4 were constructed and tested. As shown in the image below, the shorter one, prototype 4, has a length of 1 foot and the longer one, prototype 3, has a length of 2 feet. The effect of the length of the heat pipe on its efficiency is tested this week.

Below is the tables and graphs of the testing done in lab this week.





From the test results, it can be concluded that prototype 4 performed better than prototype 3. In 240 seconds, prototype 4 had a temperature increase of 12 degrees, while prototype 3 increased only 2 degrees. A possible reason is that the because the prototype 3 is longer in length, and so heat transfer takes longer. It is also possible due to heat loss along the length of the heat pipe.
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