Thursday, September 07, 2006

Charlie Duke's Data


The temperature Time curves for Charlie Dukes Hot Box experiments as supplied by Mark Brinkley are attached.

The early parts of the curves are very similar whilst later on in the experiments differences start to show themselves. (at least in the first 2 sets of experiments. The Curves do not follow the normal decay curve expected for an insulation experiment. There is a "kink" or change in the heat transfer process after 1 to 2 hours. This looks like 2 parallel processes operating with different time constants.

My view is that the early part of the curves are more or less identical to each other which suggests that this is the time taken for the whole system to reach steady state. Given the smallness of sample (350g) the relative low Delta T (<20c)>

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