Battery based electric vehicles of today and tomorrow.

[grsthegreat]

 

[Hay Dude]

 

[Gale Hawkins]

Can hydrogen fuel help drive towards green future?

Supporters are calling for a clean fuel strategy but critics are not sure about hydrogen's role.

www.bbc.com

 

[goeduck]

View attachment 704721

^^ Hindenburg crash date was 1937 with zero technology to prevent an explosion. Numerous gasoline explosions have happened since that date with lots of technology to prevent explosions.

 

[Gale Hawkins]

How long-duration energy storage will accelerate the renewable energy transition

Sounds like Australia is making progress with the technology side of renewable energy.

 

[3930dave]

You Can Get Used to Anything...... Even a Hanging......

Search gasoline explosion on Ytube..... you'll probably have to go to bed before you run out of accidents to watch. Said by an ICE gearhead (me).

This type of event I hadn't come across before today....

Rgds, D.

 

[Larry Caldwell]

Now that science has shown global warming cycles followed by rising CO2 levels for hundreds of thousands of years before humans walked the earth and where we are at today in the current climate change cycle has next to nothing to do with human activities has been helpful to me.

You are clearly correct that dependable on fossil fuels will peak and go into permanent decline.

The funny part this will occur because of economical reasons and nothing else in the years ahead.

Be cautious about assigning or denying causality. I saw the same data, and much of the CO2 rise could be caused by overshoot. Cold oceans absorb CO2, warm oceans bubble it off. Much of the cooling may be due to volcanic aerosols, with CO2 stored in the oceans. Reverse that process and you have atmospheric CO2 tracking behind warming.

 

[Gale Hawkins]

Yes... and not that many years ago, it was deemed unharmful to inhale vast quantities of tar, nicotine, and Co2 into one's lungs... Not that I care what someone else does; but, a cleaner, healthier tomorrow is a, "good thing", to quote Martha Stewart.

I put 15K miles on the Leaf in the year before it got totalled do I basically was seldom at a gas station. Smelling the gas vapors again was actually a painful experience. After about a month my brain stopped recoiling to the gas fumes.

 

[Larry Caldwell]

Yep, hard to sell people on vehicles with a pressurized hydrogen cell on board, yet easy to sell them on a tank full of liquid explosive on board.
Always had me scratching my chin


But as far as “cost of production” goes, gotta think the savings in not having to redesign the automobile drivetrain would save a lot of cost?

I'm repeating myself, but I think if hydrogen has a future it will be energy storage. Solar cells don't work at night, so build a big solar farm to make hydrogen, then run it through a turbine at night. Storage would be local, or could be distributed through the existing natural gas network.

 

[Gale Hawkins]

Be cautious about assigning or denying causality. I saw the same data, and much of the CO2 rise could be caused by overshoot. Cold oceans absorb CO2, warm oceans bubble it off. Much of the cooling may be due to volcanic aerosols, with CO2 stored in the oceans. Reverse that process and you have atmospheric CO2 tracking behind warming.

You nailed that relationship. Man being the demon behind global warming never made sense to me. Mother nature just is not that fragile. The eons of the active Ring of Fire activities pumped all kinds of stuff out of the earth. Ice cores can show this going back 450,000 years.

 

[Cat385B]

But as far as “cost of production” goes, gotta think the savings in not having to redesign the automobile drivetrain would save a lot of cost?

Automakers redesign their drivetrain constantly. The real savings would come from smaller, less complex drivetrains.
For us, the savings would come from them being lighter, more energy dense, and fewer moving parts.

 

[Gale Hawkins]

Automakers redesign their drivetrain constantly. The real savings would come from smaller, less complex drivetrains.
For us, the savings would come from them being lighter, more energy dense, and fewer moving parts.

Losing the need for a transmission is one huge gain in my personal EV experience.

 

[grsthegreat]

In 40 years of driving, I’ve replaced 2 transmissions. Not an issue for me.

 

[Gale Hawkins]

In 40 years of driving, I’ve replaced 2 transmissions. Not an issue for me.

I was talking about the Delete of that energy wasting device not required by electric autos.

 

[Cat385B]

There is still a gear reduction box, but it doesn’t waste near the power that a transmission does.

Electric vehicle’s entire drivetrain:
(V8 off to the side for comparison)

And here’s the fuel tank:

 

[Hay Dude]

Yeah the loss of most fluids, if not all fluids, will be a huge relief. No more oil changes, transmission fluid changes, filters, etc. Those items in a larger truck are surprisingly expensive now.

 

[Cat385B]

Just an oil change on my truck now runs me $35 when I do it myself. As I get older, I don’t think I’ll miss doing it very much.

 

[Grumpycat]

The big, big advantages hydrogen has are no air pollution and no dead batteries that are not easily recycled (junked?). So what is the "true cost" factoring in the myriad of associated costs with those?

Myopic vision. You are pretending the fuel cell never wears out. The fuel cell contains more exotic materials than lithium batteries and is very sensitive to the purity of the hydrogen and cleanliness of the air used to react with the hydrogen.

A kWh of electricity used to produce hydrogen will move an EV twice as far if one skips the hydrogen step. H2 currently costs 5x its equivalent in gasoline.

 

[goeduck]

Myopic vision. You are pretending the fuel cell never wears out. The fuel cell contains more exotic materials than lithium batteries and is very sensitive to the purity of the hydrogen and cleanliness of the air used to react with the hydrogen.

A kWh of electricity used to produce hydrogen will move an EV twice as far if one skips the hydrogen step. H2 currently costs 5x its equivalent in gasoline.

..... ^^^ for fuel cells with current technology .....

What were the prospects of an EV 20 years ago before money was sunk into research?

 

[Gale Hawkins]

Why the Shipping Industry Is Betting Big on Ammonia

Ammonia engines and fuel cells could slash carbon emissions

spectrum.ieee.org

Sounds like this is moving to application stage for shipping.