Re: [ERPS] Gas Core/Nerva

2003-02-26 Thread Bill Clawson
The centrifugally separated uranium gas from hydrogen fuel style engine was discussed earlier. This engine sounded efficient, but with very unsavory failure modes, especially if used for earth launched vehicles. If such an engine ever crashed, wouldn't all of the uranium gas just leak out the exh

[ERPS] Gas Core/Nerva

2003-02-26 Thread GDNordley
<< The last time this [Gas Core nuclear] was seriously worked on -- I heard a talk by Steve Howe (of LANL) in 1996 -- they weren't sure which was best, although they seemed to be favoring a concept with a toroidal core. >> Well, something in '96 updates me on this subject ;-) I didn't realize

Re: [ERPS] Gas Core/Nerva

2003-02-25 Thread Henry Spencer
On Tue, 25 Feb 2003 [EMAIL PROTECTED] wrote: > ...The gas core nuclear > concept was essentially a radially symmetric drum. A uranium-bearing gas > (Uranium hexafluoride, in my memory, but perhaps Henry has better data...) is > kept in place near the inside rim of the drum by centrifugal force.

[ERPS] Gas Core/Nerva

2003-02-25 Thread GDNordley
Gentlefolk, I'm afraid I've been kicking around the advanced propulsion community too long and assume everyone's heard of everything, sorry. The gas core nuclear concept was essentially a radially symmetric drum. A uranium-bearing gas (Uranium hexafluoride, in my memory, but perhaps Henry has