Re: UGF Heating Alternative
> From: "Mark A. Bailey" <mbailey at crosslink_net>
> Date: Fri, 15 Mar 1996 19:29:17 -0800
> A couple of things:
> a. Since the PVC IS a good insulator, little heat would be lost during it's
> travel. Therefore, the water in the tube could be maintained at a
> relatively constant temperature.
... and not much heat would be transferred to the substrate. What was
> b. If the PVC is not a great insulator, the heat transferred out of the
> tube, would be proportional to the temperature difference. If the
> first foot were hot for some reason, less heat would be transferred,
> saving the heat for the next foot. This transient behavior
> will eventually even out, again keeping the temperature in the tube
> relatively constant.
You have that just a little backwards. The greater the difference in heat,
the faster the heat transfer. What you are saying is that food in the
regular part of a refrigerator would get colder faster than food in
the freezer. I don't think so.
> Recently, I was reading an article (unfortunately I cannot find
> the reference) where the author did this setup.
It was in AFM last year and the author, Earle Hamilton, is/was on this