Hi All,

I'm looking for any engineering numbers/places to look for calculating heat transfer thru immersed heat exchangers. IE how many BTUs can I expect to pick up/deposit to/from a tank at a given mean water temp in the tank and X mean temp differential in the coil.

I'm trying to move beyond the "rules of thumb" available, and do some real calculations based on flow, the available BTUs from the panels, or the BTUs that I expect to need to move into the floor at a low temp or a fan convector at higher temps to determine coil size.

also has anyone here used the stainless "slim Jims" designed for pond source heat pumps for immersion in solar tanks (obviously for really big squareish tanks)

any help or direction appreciated. even if someone can point me to an engineer that's done that sort of thing for you.
thanks,

karl

--
Karl Schwingel
NABCEP Certified Solar Thermal Installer
NorthWind Renewable Energy LLC

PO Box 723 Stevens Point, WI 54481
[EMAIL PROTECTED]
Cell: 715 209 0446
Fax : 715 952 4501


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