Hydrogen more energy than oil?

crude vegetable oil, diester, bio-ethanol or other biofuels, or fuel of vegetable origin ...
bamboo
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by bamboo » 04/05/12, 12:01

Did67 wrote:
indy49 wrote:Well, she 5,5 ... You "less than 5", I imagine 4,9?

Me 4.8l / 100.
It 5.5 ok, but that's not what's most interesting: you have to compare it with what it would do with another car. Hence my comparison with the Audi which made exactly the same trips since it was carpooling.

Did67 wrote:1) We definitely don't have the same values! (even if your "mini" at 10 l, that surprises me a bit, it must be a Cooper driven in the Fangio?)

It is not _ma_ mini, but that of friends.
It turns at more than 9l and when I see them, they don't seem to be driving roughly, but I'm not always with them.

Did67 wrote:2) If on a thread where we talk about futuristic solutions (H² as fuel, I remind you), we can not criticize a "revolution" of 10 years ago ???

Since it's still revolutionary, I would appreciate a little restraint 8)
No, but what bothers me is that many hit it when it is frankly not the worst car (except maybe the aesthetics :D )

Did67 wrote:To be honest, I wondered about the Prius a good half a dozen years ago. Before taking other paths: replace an oil-fired boiler with a pellet boiler and replace two old "turbodiesel" (over 400 km each) which were starting to smoke with a C000 on LPG and a C1 on LPG.
And I'm not criticizing your choice. 8)
Everyone has their reasons / constraints / etc.

Did67 wrote:But here, we are talking about "energy balance", not "what is the latest technology" in terms of cars ...

Dividing by 2 is not that bad 8)
But again, I am not against future developments. And I would like to ride full-electric.
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by Did67 » 04/05/12, 12:48

OKAY. I said "last" (because this is not the subject here and you have to discipline yourself a little to continue to benefit from the great flexibility of moderation of this forum) ...

But it's just to say that we finally agree more than I initially thought.

If my "downside" (it's not an energy break!) Is taken for a criticism of the Prius, I withdraw it.

And if my opinion that you can do almost as well (with a simple C1 and driving "cool" and thoughtful) for 3 or 4 times cheaper disturbs you, I say: buy Prius if you roll in a pot of yogurt n is not possible (large family) or annoying for your social status ... rather than buying SUVs or 4 X 4s as expensive and scandalously polluting "for nothing"!
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by Leo Maximus » 04/05/12, 14:35

chatelot16 wrote:I confirm: the shortest path between photovoltaics and the car is the battery

of course no heating: this is proof that the battery does not lose a lot of energy

if the fuel cell is heating it is losing more!

unfortunately the fairly long charging time is a handicap ... which can be bypassed with interchangeable batteries

while we drive with each other the charge is made, and we reverse in an instant!

Heating in the electric car is a huge problem, it halves the range.

In the case of the electric car car with PAC H² we have the heating and its use does not reduce autonomy at all.
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by dirk pitt » 04/05/12, 14:59

Leo Maximus wrote:
In the case of the electric car car with PAC H² we have the heating and its use does not reduce autonomy at all.


does this justify spending 3 times more primary electrical energy all the time? (including when you don't need heating) : Cheesy:
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by bamboo » 04/05/12, 15:15

Leo Maximus wrote:In the case of the electric car car with PAC H² we have the heating and its use does not reduce autonomy at all.

With this type of reasoning we come to say that the poorer the efficiency, the better the engine ...

And as mentioned by Dirk, how do you do in summer? : Cheesy:
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by chatelot16 » 04/05/12, 16:43

Fakir wrote:
chatelot16 wrote: unfortunately the fairly long charging time is a handicap ... which can be bypassed with interchangeable batteries
while we drive with each other the charge is made, and we reverse in an instant!
Unfortunately, this is the major problem with the battery. And changing 100 kg of batteries is not a lasting solution.


the solution is very simple: do not put a 100kg battery, but more than one reasonable weight easy to carry: 20kg

and suddenly this 20kg battery could be standard and interchangeable between a large number of vehicles: depending on the power of the vehicle, the number of batteries would be quite different: the same type of battery would be usable from small cars to large trucks

so that these interchangeable batteries are available in service stations, they would all be equipped with an energy meter: we only pay for the energy actually supplied by the battery when we return the battery to take a full one: this payment 'real energy is important so as not to encourage the user to fully discharge them and reduce their lifespan ... and avoid any dispute with the quality of the batteries ... if a battery does not provide its theoretical energy we do not is not rolled: we only pay for what we could use
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by Leo Maximus » 04/05/12, 17:03

indy49 wrote:
Leo Maximus wrote:In the case of the electric car car with PAC H² we have the heating and its use does not reduce autonomy at all.

With this type of reasoning we come to say that the poorer the efficiency, the better the engine ...

And as mentioned by Dirk, how do you do in summer? : Cheesy:

Well, in summer, I do like everyone else I turn off the heating ...
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by bamboo » 04/05/12, 17:14

Leo Maximus wrote:
indy49 wrote:
Leo Maximus wrote:In the case of the electric car car with PAC H² we have the heating and its use does not reduce autonomy at all.

With this type of reasoning we come to say that the poorer the efficiency, the better the engine ...

And as mentioned by Dirk, how do you do in summer? : Cheesy:

Well, in summer, I do like everyone else I turn off the heating ...
So the heat given off by the heat pump becomes useless ...
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by Matt113 » 06/05/12, 20:55

indy49 wrote:It's funny how people who haven't tested it in real life have opinions on the Prius : Cheesy:
I do not know what a mae is, but I know that I consume less than 5l (check at the pump).
It is almost 2 times less than an Audi A3 on the same journeys (carpooling) and 2 times less than a Mini! (on non-identical journeys but ~ equivalent in terms of journey type).
(It does not mean that I am against other techs, but I find it very easy to criticize a car that was a revolution 10 years ago, and which is still less consuming than cars today)


the only audi a3 that can go up to 10L / 100km is that of my brother-in-law when he has a little fun with it, must say it is a 2.0 Turbo petrol at more than 180hp. when driving normally it does not pass the 7L / 100km.
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by bamboo » 07/05/12, 10:27

Matt113 wrote:
indy49 wrote:It's funny how people who haven't tested it in real life have opinions on the Prius : Cheesy:
I do not know what a mae is, but I know that I consume less than 5l (check at the pump).
It is almost 2 times less than an Audi A3 on the same journeys (carpooling) and 2 times less than a Mini! (on non-identical journeys but ~ equivalent in terms of journey type).
(It does not mean that I am against other techs, but I find it very easy to criticize a car that was a revolution 10 years ago, and which is still less consuming than cars today)


the only audi a3 that can go up to 10L / 100km is that of my brother-in-law when he has a little fun with it, must say it is a 2.0 Turbo petrol at more than 180hp. when driving normally it does not pass the 7L / 100km.

Where does he live ? What does he do for journeys?
There, it was in the traffic jams of Ile de France.
And again, we don't care about the absolute value of a drink!
What matters is to compare what is comparable: 2 cars on the same route, and over several months even years to smooth out the differences.
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