http://www.shec-labs.com/calc/fuel_energy_equivalence.php
1liter (1kg of water) contains 111grams of Hydrogen atoms and 888grams of Oxygen.
1g of H, burnt or exploded in one second releases 140400W per second. folks it's 140.4kW/s !!!!!
If one is capable of disociating ONLY* 10ml (10g) of water per second the one is capable of releasing that much power.
1ml (1cm^3) per second would mean 14kW !!!! and it's enogh to make our homes warm as hell at winter times.
*someone should meassure how much water is "LOST" through time and easily find energy equivalent.
coversion back to electricity should be done with kinda "OLD" steam piston engine which can have 90% efficiency.
Related is the matter of hydrogen peroxide--water with an extra oxygen molecule. On the news of the "botched" bombing in London, there was some sort of interaction between citric acid and hydrogen peroxide to produce combustible hydrogen.
This, too, sounds simple enough. I googled up hydrogen engines and discovered that this principle has already been applied to hobby rocketry. Worth further study.
Old power steam engines are easily improved, instead of single piston configuration go multi cylinder. Power overlap, the time in an engine when more than one power stroke exists in a revolution. Check out the Bricklin Turner Engine. Cheap to build but, I haven't figured out how to convert it to steam yet without loses at the pressure manifold. So far simple 2 cylinder steam engines at the present look like the way to go.
GEE! Lets see if we have 140.4e3 wats per second that seems to be 14.04e3 Joules and that comes out to 0.039 kW/Hr, not even enough to run a light bulb, let alone a house?
For those of you that get excited fast, calm down and look at some real numbers.
Hydrogen = ~ 2.7 Watts per STP Liter
or 60.48 Watts per mole, with a mole being ~ 22.7 Liters.
If you want 1kW/Hr equiv. you need 3,600,000 Watts/Sec (Joules)
W/Sec are watt seconds or SI Joules.
The energy calculator stated above works properly if properly applied.
Sorry I just could not let this pass, so wrong to say it as above...
Quote from: joule on August 03, 2006, 02:26:34 PM
For those of you that get excited fast, calm down and look at some real numbers.
Hydrogen = ~ 2.7 Watts per STP Liter
or 60.48 Watts per mole, with a mole being ~ 22.7 Liters.
If you want 1kW/Hr equiv. you need 3,600,000 Watts/Sec (Joules)
W/Sec are watt seconds or SI Joules.
The energy calculator stated above works properly if properly applied.
Sorry I just could not let this pass, so wrong to say it as above...
what to pass !?!
this numbers are exact and naked fact:
ONLY 1ml of water if dissociated in one second to H and O will if fired (exploded or burnt) through 1 second
release 14kWs of energy or 14kJ.
so ONLY 0.111g (pure mass not weight) of hydrogen will release 14kWs or 14kJ. do You(Joule) agree on this ?
that is all that is stated.
It is not stated that efficient method to dissociate ONLY 1ml per sec of water exists or be proven to exist... for now,
and only for now...
wizkycho
Quote from: joule on August 03, 2006, 02:26:34 PM
For those of you that get excited fast, calm down and look at some real numbers.
Hydrogen = ~ 2.7 Watts per STP Liter
or 60.48 Watts per mole, with a mole being ~ 22.7 Liters.
If you want 1kW/Hr equiv. you need 3,600,000 Watts/Sec (Joules)
W/Sec are watt seconds or SI Joules.
The energy calculator stated above works properly if properly applied.
Sorry I just could not let this pass, so wrong to say it as above...
In what/which fuel cell? Seems to me you're leaving out too much information to be jumping to the conclusion you're jumping to, as if maybe you're a BP plant? ;D
Hydrogen used as a combustible isn't used to generate joules; it's used to generate ergs. Maybe I'm missing something but I don't see wattage generated even when combusted, by itself. Y'all are ignoring the generating equipment required, and that's a variable, not a constant.
Now then--it's not carved in stone that you have to disassociate oxygen from water to get hydrogen. It's a whole lot easier to part hydrogen from sulfur.
Leave water alone; it's a precious enough resource the way it is. Use hydrogen sulfide.