Re: Thermodynamics_Solar Hydrogen vs. Central Electricity Generation

Raleigh Myers wrote:

Centralized Electricity fired by fossil fuel, two thirds of the energy lost up the stack, more lost in transmission,

Not even wrong.

Modern combined cycle power plants routinely approach 60 percent thermal efficiency. Read the ads and articles in POWER ENGINEERING magazine.

The exergy lost in any electricity to hydrogen conversion cannot begin to even ever dream of remotely approaching such efficiency figures. While IJHE shows 13 percent, this appears to be wildly overstated and does not properly account for full burden amortization.

Thermodynamic fundamentals involving exergy ABSOLUTELY GUARANTEE that electrolysis from high value electrical sources for bulk hydrogen energy flat out ain't gonna happen. A kilowatt hour of electrical energy is ridiculously more valuable than a kilowatt hour of unstored hydrogen gas. As is its qulity.

See http://www.tinaja.com/glib/energfun.pdf for a tutorial.
And http://www.tinaja.com/glib/muse153.pdf for electrolysis fundamentals.

And http://www.tinaja.com/whtnu06.asp for the latest updates.

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Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
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