| Summary: | 碩士 === 國立中央大學 === 機械工程研究所 === 83 === As the improving of manufacturing technology, the requiredeat
transfer ability is more and more higher. Even the newlyesign
of personal computer's CPU is fored to use a lowerperating
voltage to reduce heat generation. It's obviously thatbetter
technology of heat transfer is indispensable to thendustrial
development in the future. In this research, we take
experiments on the heat transferbility of a square channel
using a Newtonian fluid, water, andnon-Newtonian fluid,
carbopol aqueous solution as its workingluid. In addition, we
design a X-type insertion to enhance theeat transfer ability of
a peripheral uniform heating squarehannel. The results conclude
that when using non-Newtonianluids in a square channel, the
heat transfer ability is 2.3imes of that of pure forced
convection. After adding the X-typensertion, the heat transfer
ability is improved to 2.8 times ofhat of pure forced
convection, even 3.08 times sometimes. Thisroves that our
design works very well.
|
|---|
