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Dave Liquorice[_2_]

On Sat, 1 Mar 2008 17:03:28 -0800 (PST), wrote:

It is that delta T which measures the amount of energy transfered to
the circulating fluid and thus into the storage (less losses).

It is, but the delta T varies hugely according to stagnation temp,
and its stagnation temp thats the Big Issue with flat panels.

Can you explain "stagnation temp", all I get in my mind is static pool of
black smelly water, which doesn't fit with a circulating system with an
energy input.

--
Cheers
Dave.