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EEStor capacitor?Question...and I may be showing my ignorance on one or many levels.
Hydrogren vehicles still have batteries which power the motors, no? We've seen with Tesla that it requires a large battery to produce enough power to make a very high performance EV. How would it be possible to have a high performance hydrogen vehicle? Of course there's direct combustion but that's extra stupid. Is there any way for a standard hydrogren->battery->motors vehicle to be high performance? I'm not seeing it. Some friends of mine are really hot on hydrogen and I am most certainly not for hundreds of reasons, just wondered if this is another reason. Thank you!
Hydrogen fuel cell vehicles have a small "buffer" battery since the fuel cell has trouble adapting to the large power swings of driving the car. Since this battery is smaller, it is not capable of large power output of a BEV. A larger battery (or capacitors) could improve the instantaneous power output.Question...and I may be showing my ignorance on one or many levels.
Hydrogren vehicles still have batteries which power the motors, no? We've seen with Tesla that it requires a large battery to produce enough power to make a very high performance EV. How would it be possible to have a high performance hydrogen vehicle? Of course there's direct combustion but that's extra stupid. Is there any way for a standard hydrogren->battery->motors vehicle to be high performance? I'm not seeing it. Some friends of mine are really hot on hydrogen and I am most certainly not for hundreds of reasons, just wondered if this is another reason. Thank you!
Hydrogen fuel cell vehicles have a small "buffer" battery since the fuel cell has trouble adapting to the large power swings of driving the car. Since this battery is smaller, it is not capable of large power output of a BEV. A larger battery (or capacitors) could improve the instantaneous power output.
Just looked this up. Toyota Marai fuel cell stack max output is 128 kW and the battery is (only) 1.24 kWh so the battery really can't contribute anything to performance so you are stuck with 128 kW max power. (For comparison, the Model 3 or Y have two motors about 190 kW and 250 kW so much better performance.Yes, but the total power is not just the battery, it is the battery + fuel cell stock. It acts like a parallel hybrid
Yep. The Nikola Tre Semi has two 70kWh batteries and two 100kW fuel cells. So 200kW from the fuel cells, but 140kWh of batteries to fill in when more power is needed.Just looked this up. Toyota Marai fuel cell stack max output is 128 kW and the battery is (only) 1.24 kWh so the battery really can't contribute anything to performance so you are stuck with 128 kW max power.
It looks like you are comparing kW to kWh.Just looked this up. Toyota Marai fuel cell stack max output is 128 kW and the battery is (only) 1.24 kWh so the battery really can't contribute anything to performance so you are stuck with 128 kW max power. (For comparison, the Model 3 or Y have two motors about 190 kW and 250 kW so much better performance.
I was thinking that they would have a bigger battery but apparently not.
Performance is limited by the fuel cell. They could put in a bigger battery or fuel cell but that would increase cost, weight, etc.
Just looked this up. Toyota Marai fuel cell stack max output is 128 kW and the battery is (only) 1.24 kWh
10 secondsIt looks like you are comparing kW to kWh.
The battery capacity maybe only 1.24 kWh but it seems like it may be able to put out as much as 31.5 kW.
"The new Mirai is equipped with lithium-ion high-voltage battery in place of the current model’s nickel-metal hydride unit. Although smaller in size, it is more energy-dense, giving higher output and superior environmental performance. Containing 84 cells, it has a 310.8 rated voltage compared to 244.8, and a 4.0 Ah capacity, versus 6.5 Ah. Overall weight has been reduced from 46.9 to 44.6 kg. The output has improved from 25.5 kW x 10 seconds to 31.5 kW x 10 seconds."
10 seconds
First, TFA is a clumsy machine translation.World's First Hydrogen Train With A Speed Of 160 Kilometers Per Hour Rolled Out In China - FuelCellsWorks
On December 28th, the world's first hydrogen-powered urban train with independent intellectual property rights, developed jointly by CRRC Changchun andfuelcellsworks.com
Doesn’t make sense to me at all.
10 seconds
What?? You can’t do that !!The so-called “green” hydrogen could be sent to shore via the gulf’s existing extensive oil and gas pipeline network
Just to clarify, that is their assertion, not mineWhat?? You can’t do that !!
Hydrogen simply cannot be transported through regular pipelines that are used for fluids. Hydrogen is the most leaky gas in the planet. Transporting through pipelines is almost near impossible for long distances.
I get that.Just to clarify, that is their assertion, not mine
When one's actual intent is green washing, one might not actually care about such nuance as leakage.I get that.
Even many with good science background often are sucked into it.