The Perpetual Motion Machine in Mongoose 2300AD

Reading the Aerospace Engineers Handbook, I find it very easy to produce a perpetual motion machine from an MHD Turbine plus a Fuel Cracker.

Put simply, the MHD Turbine is already > 100% efficient (119% under certain common assumptions), and the fuel cracker is ca. 800% efficient. 1 MW of input on the fuel cracker produces 2.4 dTons of fuel per day, whereas the MHD turbine consumes 2.5 dTons per MW-week.

So, if I want to build a ca. 1 GW output perpetual motion MHD generator, I use the following components:

1. A 1.2 GW TL-12 MHD Generator (1,000 dTons, MLv550)
2. Say, a days fuel or 428.57 dTons
3. A fuel processor generating 428.57 dTons of fuel per day (17.86 dTons,  MLv35.71)

The upshot is, this system produces 1,021.4 MW whilst regenerating the expended fuel at the same time.