- #1
lvll1988
- 1
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Hi,
we have a project where we have to find the thermal conductivity of a aluminum bar using a thermocouple.
An idea was to use the specific heat of ice water. By putting a heated rod into the ice and calculate the energy needed to melt the ice. (Or use the Q=mc(dT) equation). But after, how to relate this transferred energy from the rod and use it to find k?
Another idea was to have boiling water in a beaker, and put the bottom of the isolated bar to the beaker. By doing the q from glass = q from bar, we would be able to find the k of aluminium. However, we were told that the contact resistance between the glass and the rod would lose a lot of data...
Any idea?
Thanks,
Tom D.
we have a project where we have to find the thermal conductivity of a aluminum bar using a thermocouple.
An idea was to use the specific heat of ice water. By putting a heated rod into the ice and calculate the energy needed to melt the ice. (Or use the Q=mc(dT) equation). But after, how to relate this transferred energy from the rod and use it to find k?
Another idea was to have boiling water in a beaker, and put the bottom of the isolated bar to the beaker. By doing the q from glass = q from bar, we would be able to find the k of aluminium. However, we were told that the contact resistance between the glass and the rod would lose a lot of data...
Any idea?
Thanks,
Tom D.