Re: Solar breakthrough - when?

From: Tkalbfus1 (tkalbfus1_at_aol.com)
Date: 08/24/04 

Date: 24 Aug 2004 00:45:24 GMT

>I am just a fan of thermodynamic fundamentals.
>Which clearly tells us what is or is not gonna happen.
>
>I am very much for things that stay within thermodynamic bounds.
>
>A heat exchanger HAS to have a delta-T across it. The more energy
>transferred in a given time, the higher the delta-T. An insulator HAS to
>lose energy. The longer the insulated pipe, the higher the losses.

A nuclear fusion reactor would certainly have sufficient delta-T however. The
inside of the reactor where fusion is occuring is hotter than the interior of
the Sun. There are currently certain devices which can start a fusion reaction
and leave a net surplus of energy, these devices destroy themselves and they
are bombs. Fusion bombs generate alot of delta-T, they require fissionable
material to get the fusion started and the fusion is of the non-steady state. I
understand that a grapefruit ball of plutonium is enough to trigger a fusion
bomb. I suppose its possible to generate electricity from a nuclear fusion
explosion. You need to surround the bomb with a material that can absorb the
bombs heat and retain it for a while.

"Pure tungsten is a steel-gray to tin-white metal. Tungsten has the highest
melting point and lowest vapour pressure of all metals, and at temperatures
over 1650°C has the highest tensile strength. The metal oxidises in air and
must be protected at elevated temperatures. It has excellent corrosion
resistance and is attacked only slightly by most mineral acids."

Melting point 3695 c

Tom

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