Hello all :

I want to ask for deep though on this idea, a friend of mine commented it me about, and while we know is not possible to build a perpetual motion machine. I coud n't give him the arguments of the inconvinience to consider in realizing this concept/model :

This is about hydrogen production (electrolyzers) and energy generation through hydrogen (fuel cells)

I know a machine which ganerates H2 with an stage of an water electrolyzer, and then to supply H2 to itselft for electric energy production using a stack of fuel cells, is not possible, is a perpetual motion machine.

But my questions is:

What about accepting that a system of this kind, is going to run out of hidrogen produced from the electrolyzer very quick (since all the irreversibilities present in each of processes in each part of the whole energy system). But what about accepting this (not trying to arguing in a perpetual motion machine), but to consider that the refueling of the system, to produce more H2, from conecting the refrigerator to a power outlet, and then to convert more thermal energy to electric energy through the TEG converte (themoelectric modules) is though.

So, what are the fundamentals, or the reason for the negative balance in this case ?

Why not to operate it this way: "each time the system runs out of hydrogen, to connect the refrigerator to the electric plug, and recharging again, and then, disconnect it and operate it for a little time with out any electric energy supply from the 220 electrical outlet ??