[AR] Re: Hydrogen and oxygen used as pressurizing gasses

  • From: Uwe Klein <uwe@xxxxxxxxxxxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Mon, 14 Dec 2015 13:21:49 +0100

Am 13.12.2015 um 19:02 schrieb Steve Traugott:

Maybe I missed this, but has anyone tried a mini version of the ULA
IVF? Could use a modified R/C engine and flight-weight motor as
generator. Doing the math, I get about 100W from a 5cc engine using
conservative numbers; that's using a 4-stroke engine, brushed PM motor
and keeping the engine at lower RPMs to avoid the need for a gearbox;
brushless multiphase looks to be able to go higher with less weight and
added electronics. Total system weight appears to be around 2 Kg.

Look into torpedo drives. you probably have to add complexity from
recirculating exhaust gases.

A free piston generator could be of interest.

Then
With LH2/LOX why go that way when you could use a fuel cell?
( for long duration ops I'd use the boil off energy for refrigeration?)


uwe


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