Spaceships series: Electrical Batteries module?

DaltonS · 06-20-2012, 05:42 PM

In a perfectly efficient fuel cell or MHD turbine setup, one ton of water should be produced (BTW how do we store that? Do empty tanks have a launch mass?) for each ton of LOH fuel used. Using a "chemical refinery" (SS1 p.19) to crack it back, an SM+x system should process one SM+x tank in 3 hours (if x is odd) or 3h20m (if x is even) for one power point. This is VERY surprising because according to SS1 p.20 a fuel cell produces 12 PPh (Power Point hours) per fuel tank at TL7, 24 PPh/tank at TL8, 48 PPh/tank at TL9 and 96 PPh/tank at TL10+ (an MHD turbine has the same efficiencys at TL9 and TL10+). That's an energy output that is 4 to 32 times the energy input! What ever happened to TANSTAAFL?

Dalton "how do I submit this to Murphy's Laws?" Spence

06-20-2012, 05:42 PM	#21
DaltonS Join Date: Aug 2004 Location: Hamilton, Ont. CANADA	Re: Spaceships series: Electrical Batteries module? In a perfectly efficient fuel cell or MHD turbine setup, one ton of water should be produced (BTW how do we store that? Do empty tanks have a launch mass?) for each ton of LOH fuel used. Using a "chemical refinery" (SS1 p.19) to crack it back, an SM+x system should process one SM+x tank in 3 hours (if x is odd) or 3h20m (if x is even) for one power point. This is *VERY* surprising because according to SS1 p.20 a fuel cell produces 12 PPh (Power Point hours) per fuel tank at TL7, 24 PPh/tank at TL8, 48 PPh/tank at TL9 and 96 PPh/tank at TL10+ (an MHD turbine has the same efficiencys at TL9 and TL10+). That's an energy output that is *4 to 32 times* the energy input! What ever happened to *TANSTAAFL? Dalton "how do I submit this to Murphy's Laws?"* Spence