el sid question [RE-wrenches]

[Todd Cory, Mt. Shasta Energy Services]

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Glycol and storage tanks degrade under high temperatures... not to mention how
darn dangerous 200+ degree pressurized water is.

Todd


"Carl Emerson, Free Power Ltd." wrote:

> Can someone explain why there is a need to have overheat protection at all
> if the loop is all copper, the fluid is 50% glycol, there is an expansion
> tank in the circuit, the panels are built to stand the temperatures and
> pressures, and the loop is pressurised to prevent a boil ???
>
> This situation will happen every time there is sufficient sun and a power
> failure.
>
> In the case of a PV powered pumping system the solar supply should be
> controlled by an over temp. thermostat.
>
> What are we trying to protect ???
>
> Carl Emerson
> Free Power Ltd.
> Auckland N.Z.

--
Todd Cory
KE6SXS
toddcory at finestplanet.com
Mt. Shasta Energy Services
License C-10 # 811428
P.O. Box 689
Mt. Shasta, CA. 96067
(530) 926-1079

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"Should any political party attempt to abolish social security, unemployment
insurance,
and eliminate labor laws and farm programs, you would not hear of that party
again
in our political history.

There is a tiny splinter group, of course, that believes you can do these
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Their number is negligible and they are stupid."

-- Dwight D. Eisenhower, 1890-1969
   34th American President
   November 8th, 1954
   Excerpted from the Presidential Papers of Dwight D. Eisenhower:

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