On Tue, 2002-10-29 at 02:35, Randall Clague wrote: > I'm not enthused about electrically heated catalysts, because they are > not as simple as ambient temperature catalysts, and we have not seen > catalyst temperature problems since before we starting getting good > data a couple years ago. There is also the issue of power consumption > (P =~ T^4) on a reusable vehicle where we care about weight.
You mean we haven't seen catalyst temperature problems since we started using *silver* which will be useless when we go to higher strength peroxide. This makes silver a "low temperature catalyst" in my mind. It works in the startup range of our future rockets, but not in the operating range. Hmmm, sounds pretty useless to me. Also, you should do the math before worrying so much about weight. Unless I'm mistaken, Gizmocopter's battery packs would heat 1kg of tungsten by >3600K. Those are NiCd, which is not exactly known for energy/mass.
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