Possum, would that make our vehicles lighter (in weight, that is)??

Possum3 wrote:

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Don't think I would be too happy sitting in a car with a Hydrogen tank certainly make a big boom if something caused a rupture.

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Ummm...... Hydrogen is the only part used from any fuel be it diesel, petrol, LPG or CNG, or even LNG which would be the most logical fuel upgrade to aim for because we already have the production facilities and it will run in a diesel engine and work better than distillate diesel or bio fuel diesel while producing far less smog causing emissions and oil contamination.

So, if sitting a tank of potential hydrogen gas worries you, get an electric powered vehicle and get rid of your hydrogen generation lead acid battery, now there is a bomb just waiting to explode  after all, it does create both oxygen and hydrogen in the perfect ratio to cause the very best explosion possible ... but you don't appear to be too concerned about that and some even install this potential bomb under their bed

If a fuel tank ruptures which fuel is still there to feed the fire/explosion? Hydrogen is lighter than air so it will dissipate the fastest .....

 

T1 Terry  

Interesting Bukhouse, but the fast talker doesn't seem to have read the works by GRIMES, CRAIG, VARGHESE, OOMMAN, RANJAN, SUDHIR titled Light, Water, Hydrogen that looks much deeper into the energy mix required to power an electrolyser. the part missed is the waste heat from an internal combustion engine, it can be harnessed within the electrolyser to reduce the electrical energy required. It is X amount of energy required to split water into its base components and it doesn't all have to be electrical energy.
Interestingly he does mention regenerative braking and that could better be stored in batteries, but he leaves out that energy is electrical energy and without the need for an electric drive motor in the mix it could provide some of the electrical energy required by the electrolyser. Now add the detuning required to reduce the NOX from the exhaust, the excess heat generated it the combustion even it absorbed by the water droplets created by igniting the hydrogen/oxygen mix so the NOX is not created in the first place. This now means the engine can be tuned for max performance rather than minimum emissions.
The next bit involves the release of energy by the super heated steam created in that initial combustion event. The effect is very much like the effect burning diesel fuel achieves, and extension of the power cycle from just the initial explosion and on through the down stroke. This is how a diesel engine achieves the additional torque compared to a petrol fuel engine.
Now consider how much waste heat that would have gone into the cooling system that has now been harnessed as drive power by the formed water droplets being converted to super heated steam energy ...... so many things completely missed in the explanation unfortunately but that happens so often doesn't it What happens if that same battery that stores the regenerative braking energy is also charged from mains power when the vehicle is not in use, very cheap stored energy ready to use without requiring all those losses involved with the alternator providing the power.

No, I'm not suggesting a vehicle can be run on water along, that is still in the nonsense basket with the technology we have available at the moment, but added to a hydrogen burning engine .... who knows how far that battery recharge could extend the range before a refill was required? Actually, how far could that battery recharge extend the range a tank of petrol can achieve? If all those losses put forward about driving an alternator were removed and the required electrical energy was provided by regen braking then that alone would extend the driving range wouldn't it? Keep in mind that hybrid cars don't have alternator fitted so they know that there is an energy saving to be made.

T1 Terry

Hydrogen will be an excellent back up fuel for hybrid electric vehicles, but converted to electricity via a fuel cell, not an internal combustion engine.
Cheers,
Peter