In most cases, heat pipe systems (and that's what one would have with
an evacuated vapor system) require a secondary heat exchanger. The
low pressure system moves the heat from where it's generated to a
heat exchanger where it is transferred to a second cooling medium that
can be moved a longer way to the final heat exchanger.
The rigid pipes and initial heat exchanger might be a construction and
maintenance issue for amateur equipment - and probably not worth the
incremental performance vs. a more traditional radiator/reservoir
design.
73,
... Joe, W4TV
On 5/2/2012 11:12 AM, Pete Smith N4ZR wrote:
> Perhaps someone with practical experience can comment on whether it is
> hard to maintain a 1 PSI vacuum in a vapor system.
>
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