[ExI] rocke fuel was Re: SpaceX launch

Eugen Leitl eugen at leitl.org
Fri Dec 10 15:50:04 UTC 2010

On Thu, Dec 09, 2010 at 08:44:51PM -0800, Adrian Tymes wrote:

> Could you use tungsten as a heat exchanger?
> Have an onboard energy source, optimized for heat generation instead
> of thrust.  (Maybe even fission/radioactives, so long as they don't get


see "Risks".

They're not that good http://en.wikipedia.org/wiki/Specific_impulse

> into the exhaust.)  Use tungsten to transfer the heat into hydrogen,
> which is gently forced past.  The heat greatly increases how fast it
> goes when it leaves.

Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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