Hydrogen Power

[mresistor]

Saw this today and thought I'd share..   could be the future..


https://www.foxnews.com/auto/toyota-hydrogen-powered-pickup-suv

[sluckey]

'Bout time! Clarke and Asimov were running Hydrogen power plants in their interstellar spacecrafts back in the '50s.   

[acheld]

Toyota and Honda have been betting on H2 for a long time, only recently coming to understand that hydrogen cars are far off in the future.   Toyota overall is pretty far behind in BEVs, though of course the class leader with their hybrids.  Honda is in an even worse position.

That said, hydrogen powered semi-trucks are on the way and make a lot of sense for Class 8 trucks (Nikola probably the leader in that space). 

[mresistor]

They have been racing a hydro burning engine in a league in Japan for a while now.

[shooter]

 
Hindenburg was using Hygrogen way before it was cool


while I have made a couple $$'s(maybe $100) buying hydrogen fuel-cell companies, they all ended up bankrupt!


the problem of hydrogen vs gas, the volatility is close, H needs to be pressurized, when things go bad, and pressure rises to fast, the PV curves get downright scary 

[PRR]

The Hydrogen Revolution: A Blueprint for the Future of Clean Energy
by Marco Alverà
https://www.goodreads.com/book/show/57356062-the-hydrogen-revolution

[mresistor]

while I have made a couple $$'s(maybe $100) buying hydrogen fuel-cell companies, they all ended up bankrupt!
the problem of hydrogen vs gas, the volatility is close, H needs to be pressurized, when things go bad, and pressure rises to fast, the PV curves get downright scary 

Well  AFAIK  none of the racing crew and drivers have died yet in Japan racing with hydrogen power. But yes pure hydrogen in a dirigible is quite scary.
https://global.toyota/en/newsroom/corporate/35209996.html

[shooter]

 
rally drivers die from poor judgement
sold my Evo X because I knew after a year pushing the limits, I was gonna die in the car, such a great car I didn't want to wreak it 
last I heard; she was getting retrofitted as a 550hp drift car.

[PRR]

Clarke and Asimov were running Hydrogen power plants in their interstellar spacecrafts ...

YouTube Hydrogen mini-rockets

https://arstechnica.com/science/2022/09/years-after-shuttle-nasa-rediscovers-the-perils-of-liquid-hydrogen/

[Lectroid]

https://arstechnica.com/science/2022/09/years-after-shuttle-nasa-rediscovers-the-perils-of-liquid-hydrogen/

The article pointed to how difficult to work with hydrogen is as a rocket fuel, then asked why NASA continued to use such a difficult fuel.  It found:

"However, the real answer is that Congress mandated that NASA continue to use space shuttle main engines as part of the SLS rocket program."

It went on to describe how the Senate worked with industry experts to find the best recommendations and, lo, those experts recommended continuing too use the technologies they'd already created (and already owned.)  Am I being overly cynical to suspect they might have had baser motives than truly improving the next generation of rockets?   

[acheld]

Congress did muck around with the space program; nothing new there!  LOL, that has been going on since its inception. 

If you're interested in rocket engines and , a really good place to start is with this guy:  https://www.youtube.com/watch?v=KA69Oh3_obY who gives a good overview of why SLS and Spacex are both being used.   Also https://www.youtube.com/watch?v=Y-xyXDiC92s gives a good overview of russian rocket engines.   He's got other videos discussing rocket engine design as well --  for a non-technical guy, he does a great job explaining the engineering.

[ShoemanGB]

Uh oh.... there's my weekend rabbit hole.  Thanks for the links.  As a kid I made a model of the Gemini capsule, had the GI Joe Space Capsule set (I still have the suit but sadly not the capsule) and I remember dad rushing all of us kids out of the car into the house so we could watch Apollo 11 touch down.

[shooter]

Dad got us started in solid fuel rockets, me, brother, n neighbor Ted got bored watching them just go up, we started down the path of "weaponizing" them.  The payload compartment was filled with black power, when the last stage "backfired" to push out the parashoot(sp?)
FIREBALL!  started targeting down-range 
That's when I read "IT's a FEDERAL FELONY to launch a model rocket any direction other than straight up" tabled the knowledge for the future 

[mresistor]

shooter - it's parachute

[shooter]

 
spell checker let it slide, English/spelling, came in 8th n 9th place in my 5-place education

[Lectroid]

I remember dad rushing all of us kids out of the car into the house so we could watch Apollo 11 touch down.

And I've never seen Anything in my life as awe-inspiring as watching a Saturn V take off.  It weighed 6 million pounds and it was powered by five 1.5 million pounds-thrust engines.  It had four fuel pumps, each as powerful as a large cruise ship.  At launch, four of those main engines were just barely overcoming gravity.  It was that fifth engine that got them off the ground. 

Slowly.

https://youtu.be/ViNcBQ8cDA0