Quote:
Originally Posted by buffalobillpatrick
So Mike your suggesting that when Ice forms around the HX that the ESWT would go below 0*C?
It would, but I don't know how much, I mostly was restating what I've read in the hyp for Ice storage.
Ice is a better heat conductor than water.
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Hmmmm, I'm not exactly sure how you want to pipe this but, I've been replacing a few flat heat exchangers in solar systems where (due to a controller failure) the glycol has continued to flow when it is -20 out and 3AM. There was no flow on the water side and the HX split. Eventually the concentration of glycol diluted enough that the panels and piping split as well. I am, thus, quite wary of creating ice around a HX unless you can ensure proper flow.
That said, I have to look at this ice box thingy a bit more.