Re: Quick calculations
You see, I've looked at this and to me it does stack up. Your calculations show it is perfectly plausible.
They're not cracking hydrogen out of water, the hydrogen comes from the urea which requires a lot less energy. There probably is enough energy in the urea to power the generator for the times given.
You don't need to pressurise your gas if you don't intend to store it, remember they aren't making hydrogen for use later, the generator is running off of the hydrogen as it's produced.
So instead of rubbishing the work and saying it doesn't work, these girls should be applauded for doing some pretty neat science.
Is this going to solve he worlds energy problems? Of course not, you have to insert urine at a rate of 1L every 6 hours and since the important component is the urea you going to need proper, first thing in the morning, piss to make it work. That doesn't mean the system itself isn't working.