How a hydrogen engine works
Discussion
Hey guys,
I thought you might like to see the animated infographic about how a hydrogen fuel cell engine works.
http://www.rybrook.co.uk/magazine/news/how-a-hydro...
Check it out above!
I thought you might like to see the animated infographic about how a hydrogen fuel cell engine works.
http://www.rybrook.co.uk/magazine/news/how-a-hydro...
Check it out above!
Bee_Jay said:
Yes, a wonderfully expensive wasteful way of powering an electric motor.
Compared to a battery EV they just don't make sense, even Toyota are coming to realise that.
I don't think that's entirely fair. The more people realise that they can manage normal activities with an approx 100-200 mile battery range, the more we will see batteries dominate.Compared to a battery EV they just don't make sense, even Toyota are coming to realise that.
But there will always be other that need extra range and faster refuelling. That's where hydrogen can join the mix.
However, until we have sufficient cheap, clean electricity excess to produce hydrogen from electrolysis then we might as well use gas powered hybrid busses/trucks in urban environments.
Evanivitch said:
I don't think that's entirely fair. The more people realise that they can manage normal activities with an approx 100-200 mile battery range, the more we will see batteries dominate.
But there will always be other that need extra range and faster refuelling. That's where hydrogen can join the mix.
However, until we have sufficient cheap, clean electricity excess to produce hydrogen from electrolysis then we might as well use gas powered hybrid busses/trucks in urban environments.
Totally fair comment, I agree.But there will always be other that need extra range and faster refuelling. That's where hydrogen can join the mix.
However, until we have sufficient cheap, clean electricity excess to produce hydrogen from electrolysis then we might as well use gas powered hybrid busses/trucks in urban environments.
Fair comment maybe but Hybrids are still going to pollute the Air with noxious Fumes, NOX & CO2 with all the health related problems. The need for clean energy, (renewables), plentiful charging infrastructure investment, rapids on roadsides, parking spaces with slow chargers while working, shopping, cinemas, etc. in towns. Hydrogen is not going to be mainstream, to costly, to dangerous, highest infrastructure costs, waste of money with no economic sense. Far better to power BEV`s directly.
Edited by Modiman46 on Friday 23 December 14:00
Modiman46 said:
Fair comment maybe but Hybrids are still going to pollute the Air with noxious Fumes, NOX & CO2 with all the health related problems.
Depends how you look at it. Do we need to reduce global CO2. Yes. But more importantly the immediate issue is air pollution in major cities. Hybrids can be part of that solution in short/medium term.Modiman46 said:
The need for clean energy, (renewables), plentiful charging infrastructure investment, rapids on roadsides, parking spaces with slow chargers while working, shopping, cinemas, etc. in towns.
Agreed.Modiman46 said:
Hydrogen is not going to be mainstream, to costly, to dangerous, highest infrastructure costs, waste of money with no economic sense. Far better to power BEV`s directly.
We are way, way off having a BEV vehicle that can travel 1000 km in a day without a significant stop for recharging. At current performance you probably couldn't do that in a day, unless doing 22 mph the entire way...Once you add larger commercial vehicles you enter a trade of battery size and weight against the capable payload of the vehicle. Hydrogen solves that.
Evanivitch said:
We are way, way off having a BEV vehicle that can travel 1000 km in a day without a significant stop for recharging. At current performance you probably couldn't do that in a day, unless doing 22 mph the entire way...
Not so far off. 1000k = 600miles=200kWh @ 3kWh / mile Take the JLR i-pace (90kWh) , it will need to charge twice , also let's say it can use 350kW chargers - 2x20mins will easily suffice which is probably how long you'd stop for anyhow at that distance.
modeller said:
Evanivitch said:
We are way, way off having a BEV vehicle that can travel 1000 km in a day without a significant stop for recharging. At current performance you probably couldn't do that in a day, unless doing 22 mph the entire way...
Not so far off. 1000k = 600miles=200kWh @ 3kWh / mile Take the JLR i-pace (90kWh) , it will need to charge twice , also let's say it can use 350kW chargers - 2x20mins will easily suffice which is probably how long you'd stop for anyhow at that distance.
If super capacitor technology can catch up and produce a dense enough energy source in a light and compact enough package the electric vehicle could take off. Recharge time for a super capacitor are fractions of the time for a battery and potentially shorter than filling with petrol/diesel. If that happens the EV will well and truly be here to stay.
modeller said:
Not so far off. 1000k = 600miles=200kWh @ 3kWh / mile
Take the JLR i-pace (90kWh) , it will need to charge twice , also let's say it can use 350kW chargers - 2x20mins will easily suffice which is probably how long you'd stop for anyhow at that distance.
Except not entirely true given that range is significantly impacted by speed and 20 minutes would only give you an 80% charge at best.Take the JLR i-pace (90kWh) , it will need to charge twice , also let's say it can use 350kW chargers - 2x20mins will easily suffice which is probably how long you'd stop for anyhow at that distance.
The reality is we're still quite a way off that level of performance from BEV.
Evanivitch said:
Except not entirely true given that range is significantly impacted by speed and 20 minutes would only give you an 80% charge at best.
The reality is we're still quite a way off that level of performance from BEV.
this works with 80% charge :The reality is we're still quite a way off that level of performance from BEV.
Start off with 90kwh + 70 kwh (80%) + 70kwh = 240 kwh so target + 20% contingency with 2 short breaks.
I don't understand your statement that BEV are not at that level yet?
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