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Why do fuel cells have no future in cars - but in trucks! This information may be by your side one day


   The fuel cell is the future I don't say that, I read this comment as often as I mean when you make as many electric car Videos and Articles as I do and test new electric cars, this comment keeps coming back there are those who completely refuse and then there are those who say these electric cars it's bullshit that the hydrogen car, i.e. the fuel cell, is the future and the proof that those who say that simply have no idea that they say that because most of them don't even know that a fuel cell vehicle is actually also an electric car another system behind it and while I have already tested the Hyundai next and unfortunately had to find out that this actually has no future in the car sector if you just think about it soberly and then also pay attention to what I'm going to do for you in a moment It is exactly the other way around with a commercial vehicle, i.e. with a truck, that here what you have here in the background you can see the GHD truck of the generation h2 truck from Mercedes the hydrogen powered is actually fuel cell and what it can do that I will show you in a moment we will even drive with it I will drive on this route that you can see here also on the circuit in the end with inclination and all the bells and whistles and I'll tell you everything you.


    What is the difference now between the fuel cell car and the electric car and of course the combustion engine, not to be forgotten because we also have so many combustion engines on the streets - it won't change for a long time that you have to get a little overview number one is something very When it comes to this topic, the key word efficiency is Beside-me  know the electric car and all its disadvantages, such as range of charging, network infrastructure and so on and so on, but the efficiency is much better than that of the internal combustion engine because the electric motor takes the energy that is already available simply from the battery in the internal combustion engine a process has to take place first a combustion process yes fossil fuels converted into energy and then the internal combustion engine works so the top priority is, so to speak, the electric motor with efficiency then comes the fuel cell and only then does the internal combustion engine come w ow does it now work a vehicle with a fuel cell so a hydrogen car has the same as the electric electric motor so there is no internal combustion engine yes there was a BMW 7 series back then at the end of the 90s that was I think and I tried an internal combustion engine with hydrogen but that is not now The modern state of affairs The modern state of affairs is that we have an electric motor or several, as here the explanation is the same and then there is the fuel cell and the fuel cell generates the electricity itself while you charge the electricity into the high forest battery in an electric car You don't charge these cars even though the gentlemen's electric motor works like this, so it's a process we have an anode and cathode and a membrane in between and then electrons and protons come through the supplied hydrogen so the hydrogen filling station is refueled said Rhein and while the protons pass through through the membrane create that the electrons Nic HT they have to be rerouted around this membrane, which is exactly how this current flow is created and this is how this current is produced and then goes to the consumer next to the electric motor and that is a very clever process the problem with this whole thing is unfortunately still as before that the production of hydrogen is very energy-intensive so i once made a video with the Hyundai Nexxo there i also drove a road trip to show how it works that we found it works much easier because in the end you connect without showing anything skating jumble you have a card with a code on it is then debited apart from the fact that it is more expensive and then you refuel the vehicle with hydrogen within 3 45 minutes, depending on the hydrogen tank, especially the Hyundai Nexxo is about 6 so almost six kilos not liter kilos and with that you can get away depending on how fast you drive Speaking far so that even the point in terms of costs is wise between EUR 9 30 and EUR 9 50 per kilo of hydrogen and of course very expensive because with the Hyundai Nexxo and now to go into the car area to also show why this is not against the electric car when you arrive you come with about 1.2 kilos of hydrogen, driving 100 kilometers at the index at 150 km / h because 1.5 kilos of hydrogen are needed and then you have to calculate nine euros 30 times 15 and suddenly you have a price per 100 kilometers that is absolute does not correspond to that of the electric car or even the diesel in an electric car let's say that consumes 30 kilowatt hours and that is a lot like an Audi e Tron, for example if you drive 150 then you have a price of 12 euros per 100 kilometers and a few squashed that is more than diesel but less than hydrogen that means it is expensive then of course the energy required to produce one kilo of hydrogen we need 55 kilowatt hours energy with these 55 kilowatt hours of energy we can travel 200 kilometers with the electric car even with an inefficient electric car.


   So you can see that this is not quite the case this whole matter then comes the problem with the filling stations we only have 100 hydrogen filling stations currently in Germany and that is also stagnating a bit because the sales of hydrogen vehicles are not really increasing why because they are not buys and an Exo 70,000 euros Tamira 80,000 euros because you buy an electric car for the money and say it is pretty good and gets almost as far now and that for less money and the environmental balance is of course very important but now to get away from this crash course with the truck there will be a different shoe because with the truck the battery electric operation is of course not so useful because think about it, we have the Mercedes Eks for a modern electric car with the highest range I have tested for you, you can above right click 107 kilowatt hours net battery capacity such a battery weighs 700 800 kilo imagine if we have such a 40 Tonne truck the ideas here how big a battery would have to be to first of all of course to deliver the appropriate range and second of course also power and everything that goes with it, what you want and what you also need to get it up here to its 18 percent incline, for example, we will try it out later and of course also to create the range because after 2 300 kilometers to stop for the truck driver that is nothing so you can do this great compulsory breaks, of course, not in black because he has to cover as much distance as possible like it is with truck drivers a truck driver drives four and a half hours but you can correct me dear truck drivers who now look if something is wrong the drive four and a half hours then have to be Take a three-quarter hour break then drive another four and a half hours and then, according to EU law, you have to rest for eleven hours, so Sel Bst when you are fit again after five or six hours you cannot continue and the best thing about it is a truck driver stuck in a traffic jam with his fat truck and is 20 minutes from the destination but has already reached these four and a half hours if he has to stop there even though he only had to drive 20 minutes, this means for the truck driver to show how bad this actually is for a truck driver, also for family reasons, it may be that instead of Friday they can only return home on Monday on Sundays driving bans So it's really tricky that means these things have to deliver in terms of range because there is nothing with a charging column does not work charging card this about the no and also imagine if they are how many charging columns there would have to be a catastrophe per se so electric mobility battery electrically operated is not here for something like that it is just the fuel cell that sits here in front that I am blind to you now a Also as a model so that you can see what it looks like, i.e. what is packed under this chassis, yes, the fuel cell then generates the electricity as already explained and we even have a buffer battery, of course, there is this buffer battery in the hydrogen car But here there are also just the ones that are much larger here, the buffer battery is 70 kilowatt hours here, which corresponds to about a BMW x3 a bit smaller than the Mercedes UCI a bit larger than the Mercedes c coupé or IQ so it is neat but not enough to really drive the car that is a battery that is used to deliver load peaks, I'll show you that right next to the flag, there is a great lG display that also shows how the call is what is currently working that we can see everything same and down here so when the tax authorities bend their knees a bit, you actually don't really see it, unfortunately, here is the egg ne hydrogen tank hidden and the other hydrogen tank on the other side now of course there is a difference between hydrogen and hydrogen because with this you can not just drive with this truck to a hydrogen filling station as there are now, 100 pieces across Germany and just start filling up there are different types of gaseous hydrogen and then also broken down and liquid hydrogen gaseous hydrogen is either 350 bar or 700 was at 350 bar.


    I think it's going to be 20 degrees and minus 40 degrees, it's at 700 bar it is so cold then notices at the nozzle and has to be cooled here again to gas, so to make hydrogen completely liquid, the melting point has to be reached and this is included minus 253 degrees and that is the big goal of Mercedes to fill up with liquid hydrogen in the tanks and then just have 80 kilos of capacity left and right so 40 40 and they then deliver what the fuel cell needs, so to speak, and then in turn the drive the tufa battery is a bit more complex as you can see and then we have a pretty fat thing here because we have paid a little attention or deal with electromobility neither gets too hot in summer nor too cold in winter so that you always achieve the perfect charging speed, yes this is at around 30 35 degrees that is the comfortable temperature of the battery in the electric car here we have a bit of something bigger what you see here the Francesco it is best to walk in rows with the camera i now stay in the background then you can see this here what it looks like that is really a fat thing here is the cooling unit, which cools the fuel cell so that it does not overheat, especially in summer, for example, because here we degrees that 60 60 degrees is the temperature at which the fuel cells are kept must and therefore can do it properly generate noises we will try out later how compared to a diesel truck this classic is actually driving off noise nuisance villages when trucks drive through villages how is this driving behavior how how does it actually sound how it drives because we have a two here gearbox not a 12-speed gearbox like in a diesel truck, so there are huge differences as you can already see and who of you as the company owner has now pricked up his ears and said hey that’s what I’m in the mood to do for the environment because that’s what in the end it comes out above is nothing other than water vapor yes it is only water vapor so nothing harmful no harmful gas or or nitrogen oxides or whatever you can actually turn to the Mercedes and then belong to the test group that will arise where you have the possibility of such a hydrogen truck or several for to read your fleet and then maybe find out okay, maybe it's not for me but then it could be given back so we don't have to buy the things and then eat the shit but rather in the motto but you will have this opportunity to master this with such a lease and in between In 2025 and 2030 they'll be on the streets, why does Mercedes and big chatter in which then, too, Kameni comes here and tests it, it will take as long as that is simply due to a very specific thing I have just touched on that refueling you cannot use the current infrastructure of hydrogen refueling stations this has to be built first Because we need the liquid hydrogen as it does 253 degrees, that means it needs a completely new infrastructure to get these trucks on the road because maybe that would work here but it doesn't work because we're just going to fill them up can we have to see a cooler behind the massive and imposing front of the vehicle so it is also air-cooled when crossing the road yes the car drives eight questions i say the truck again it drives 80 km / h so what has the truck drive and then will stop here cooled by the supply air and if that is not enough I know, for example, very hot keyword Italy, Spain in midsummer then the queen unit comes along with the liquid-cooled thermal management and just cools with yes as it is with the range before we get this beautiful thing drive here as it actually does with the range so a diesel truck has in the maximum expansion stage at Mercedes, for example, 1100 liter tank u nd the consumers about 35 liters but prefer truck drivers from practice you are of course welcome to correct that in the comments below or what to add your experience values so 35 liter 1100 liter tank you can calculate roughly how far you will get abnormally far so much further than what the truck driver is actually allowed to because he has to take these breaks how is it now here so we have these 80 kilos of hydrogen that we have available and that will be something like that So the consumption is eight kilos of hydrogen per 100 kilometers, it doesn't sound like much, but it is a factor of 8 in contrast to the hydrogen car.


    So in Exter, for example, 1.2 kilos per 1.5, they say ten kilos, depending on the driving profile, especially when going uphill, the Brenner Pass or something like ten kilos of hydrogen consumption per 100 kilometers with a capacity of 80 kilos means the vehicle can handle the truck 800 kilometers the driver does not manage this because he has to take a break after four and a half hours and most of the time the average speed of a truck is 70 km / h because you brake every now and then or drive uphill because you can't reach 80 km / h so keep that as a structure, so the range is of course not nearly the same as with a diesel truck, but further than what the truck driver can manage 800 kilometers and now to the engines, we have engines in the back, they are in the back and also drive them rear axle and have a power of 2 x 230 kw in the peak with the help of the buffer battery it is 330 x 2 so 660 kw motor power is already decent because the strongest the expansion stage of diesel trucks at Mercedes is 630 HP, but I can also correct myself here at any time because truck drivers know each other much better than I ever will always be happy in the comments so I am not there now.
I haven't eaten the wisdom with spoons, these are the values that I now have in my head so one impressive thing is now the question of how impressive the whole thing, far removed from the theoretical values, is, let's go sit in and look at each other how the whole thing is, of course, from the background noise and I'm very curious about that.


    Now it's time to drive the JC truck and right at the beginning there is a very interesting thing for everyone who is interested, but especially of course for truck drivers who hope for this technology: look, you will probably know that from truck Iran I have here this little bottle of disinfectant put here we are here on the test track and the Christoph written with f in contrast to me with PH he will now drive off and I will show you what the difference is to a normal diesel truck while driving, please see Christoph you that that is the difference that the area has stayed there why because with diesel trucks we have twelve gears, that's even twelve gears correct and you know that from the truck when it drives off so from listening to it you don't have to have driven yourself [music ] so many gears are shifted very early and of course this is not the case here because the whole thing is of course based on electric motors and we are know from the electric car there is no such thing as there is no such thing as the classic gearshift process and that makes a big difference, of course, that there is still space here, regardless of the speed range we are moving in, we have this instantaneous acceleration due to the fact that gearshifts do not take place the driving is extremely quiet So I mean that we are now driving in this steep bend, I'll show you here now, that's really a decent steep bend how much incline is the 12 percent that can't be said that I built it so that you can with larger track With 90 you can drive through constantly with 90 okay, by the way, at this moment we are driving 78 km / h that we can see here on his speedometer or is now mirrored from this angle and that's just incredibly quiet so who ever has a truck He drove along and knows that it is already loud and we are driving here absolutely calmly, of course We also experience less wind noise due to the lack of exterior mirrors. You can already see trucks driving without exterior mirrors, they have these cameras a pillar and here we see the mirror so many times as a short crash course you can see that now because it's so bright outside so there you can definitely see the mirror of Christoph der once down above so probably also blind spot yes that But it is also not decisive at all, there are completely different things on the vehicle, for example this display, which is currently also very reflective, but that's why Christoph has integrated this display and that should show how the energy flow is and what actually happens there, so we have here the truck as a sketch this is the hydrogen tank here we also see 14 degrees 135 at 39 percent but we see here only one you saw before I explained to you we now have two hydrogen tanks that hold a total of 80 kilos or 2 x 40, or better said, here is only the representation of one that is because it is now shown in the system together on this display so we have 39 percent fill it says here is the buffer battery which is 70 kilowatt hours as I explained it to you and it now has 48 percent so a little less than 35 are now still in there and this buffer battery has 40 degrees here We see the fuel cell the a 61 degrees because I also showed you the cooling from the outside, this extremely large cooling that we also have in the electric car.


    So know a liquid-cooled or an active thermal management system like one resident and that ensures that even at very high temperatures, I had already explained that the fuel cell does not get warmer than this 60 degrees and here you can see in the flow so the fuel cell is now getting here last so the fuel cell generates the electricity yes but gets the hydrogen from the hydrogen tank to be converted first, here the whole thing is then converted into electricity through this process with the electrons and protons yes and this is where the energy goes and is released via the rear axle and we also have the buffer battery which works with it that means now we have what Christoph in this case currently drives the battery or helps a little when you drift if i give it a little more gas then you can see red dwarfs working now was the book still accelerated f and he sit down from the trainer and I will now brake electric motor was cooperating that means that we can now recover energy when braking and thus also charge our batteries so it is the classic recuperation as we know it from the electric car, exactly that through the braking force recovery again energy is fed into the high-voltage battery now was again a request because we saw through the red marked what he is doing now if it is only white because you are there is a current flow is exactly current flow is but and with not so high outputs easy with normal power if I step on the gas again on the straight again to accelerate then it will be red again beyond the 400 kw, i.e. over 600 ps right here we come to the drive power 2 x 330 kw in the peak yes if the tufa battery is also involved, otherwise it is 230 x 2 what the electric motors are able to generate in terms of energy, so it is extremely relaxed driving is not surprising, I am not buckled up, simply to have better room for interaction here, we are on a closed-off route that you can see here and the driving is really ultra relaxed, it is really quiet and I was really making wind noises, so that's it soy in a normal truck that is yes, but of course they are not so noticeable because the engine is of course already buzzing so that with electric vehicles suddenly noises suddenly fall on the side and ancillary units, for example, are much more noticeable because it has always been the diesel engine with this motorcycle that always conceals now you can hear it more because we don't have any drive noises just a little whistling that was also in the lower speed range which the fuel cell is exactly right as it is if you have never liked one could do times right after this steep curve to BR Emsen can simply accelerate because that is also a point 10 20 30 I have to switch once but then we are in principle in continuous operation and now one will never be like you have you have already switched you now once I had to we have two gears The gearbox and the start-up and those for steep mountains need the first gear but now and now we have 60 km h and we also see that it calls up the power because the buffer battery helps here we see 75 kw 76 77 has what it fuel cell does what people do in fabric cents justice in the back is red, it is over 400 kw electric motor not interesting so now we have 85 km h but we have already reached that so that is already one for those who do not know their way around stronger acceleration in terms of time than what you can get with the truck.


    For example, to accelerate on the autobahn the absolute value needs 40 tons so it is completely unloaded at the maximum of what you are actually allowed to load from which we are now, however, have 40 tons in the back to carry exactly the sum of the truck 40 tons so not in the back purely the chairman of the meeting wrongly said that I think the total of the truck is now 40 tons yes super interesting thing people so that is of course very promising, I think because even if we now move away from this thing with the energy from this think with the Energy because, of course, even if it is not generated regeneratively, the energy is generated by means of oil, natural gas, so that energy is excluded, of course, noise also plays a very, very important role how often we have news followed the topic that certain village petitions have just been submitted because of trucks driving through the village to avoid certain sections n or avoiding things I can understand that, of course, that is an extremely high level of noise pollution, especially with traffic lights where the truck then sets off through the aisles and the loud diesel and the field here, of course, completely gone, so of course we have normal noises from the tires so driving noises but that is not comparable, especially when starting up, you could almost even sleep with the window open when such a truck starts up and let's try that now, namely how loud it actually is when I'm standing next to the truck and this answer interests you me very much.


    All those of you who drive trucks or have already driven in the truck is of course an aspect so now just note that this is also a physical thing is for truck drivers look how damn up this is ne so now here just down fall who is not so great because it is really damn high so if I jump down here now that is really further than once closed and are curious how the LOSV process is so from the acoustics and now simulate a village and a small village Such a town through which there is a traffic light and the hydrogen truck drives off so ok ok [music] so it is loud, of course we have the tire noises but for a year it doesn't matter if the truck is already gone, the main question is how it is when driving off it is and that was definitely quieter than a diesel truck they know the sounds of a diesel truck but it was not whisper-quiet so now here with the window open in the evening when the truck drives off at the The traffic light is now not so that it is incredibly quiet and it can be even louder, yes, so it actually depends on how long the car was parked before because of the complete system, so we now hear a strong cooling process, which is still going on it is a bit quieter than the case before now let's ask Christoph so there are different volume levels Christoph with this bus driver so we had tried it out before it was quite loud.


    Now it wasn’t so bad what the reason was that the audi was actually only because at that moment the battery was very discharged and the fuel cell had a lot of power in the standstill which normally doesn’t happen then we will drive the cooling system from the wind will need to flow through there We didn't have any additional fan now wanted the thermal management to regulate the temperature and therefore also ventilated and that was what was previously a solo striker, so when a truck comes off the country road and has fallen a lot before and close your eyes is the quiet one that has at all no fan because then you don't really need there but the whistling does not go away from the front of the fuel cells because this high frequency that is of course okay that could of course be another aspect of noise pollution the argumentation of certain people we know the whistling of electric car charging stations I had reported about it so it is actually l Iceer in this case than a normal truck but not completely quiet and also depends on how the Stade status is again WIFI or how much work the fuel cell has to do exactly depends on how loud this process is, so it is actually in individual cases In this case and here, the situation is that the fuel cell is still working and charging the battery in parallel, so a higher energy consumption is to be expected here than now with the electric car that is always a topic of electric car full closure of the highway goes higher empty I also did a test to prove that even a small one can also stand in the small high-voltage battery for eight hours with half the battery empty and half full, or even longer, even here it would actually be so that the tank is already tidy Teachers are sought or actually not because now they would in principle run out of batteries We usually charge you back to your comfort zone and then the readiness shows that it has been kept for a while, which means that we can see that we now no longer need any energy would like to have cooling in summer or radio which of course is also great because of course he doesn't run the engine just one way or another classic he gets out of charge in summer we know that especially Italy is very hot the engine runs and runs and runs because the driver of course it would cool here via the high-voltage battery yes that could be done via the high-voltage battery or also via the fuel cell while standing with a bit of power or the fuel cell would then switch on if the battery gets too much and in principle you so much supply energy so that the driver has a nicely air-conditioned cab and so on and this m Inimal power of 20 kw he found with this system now with 20 attempts yes super interesting insights I can't find what you write that I like to comment in the comments oh stop before we come to a summary take a look at that again, of course a very interesting thing, especially with electric cars or hydrogen, there are of course always a lot of counter-arguments this is an 18 percent incline and we will now take the attack to show that he can master it effortlessly, hopefully at least we hope that it is us you can see that so close from here, that's why the times down with the microphone it goes up a lot you can see through the camera is not like with the naked eye so it's quite a decent slope look at it here from the incline here we see it so absolutely effortless that was without any so it was absolutely no challenge here you see d the level in the end so the power that has now also come over the peak power via the buffer batteries what if you weren't there anymore, for example, the battery should of course always regulate the operating strategy in such a way that this is never empty So we will not park the vehicle with an empty battery, we should constantly buy it, it will always be automatic because he had to refuel again at the end of the day, but a truck has to maneuver so many saddling up and saddling up we just always need energy in the battery that is and that the shunting happens just over the buffers so exactly ok Rottland like  Lothar Matthäus would say so dear friends we absolutely need a summary of the whole thing, many thanks to Christoph.


    Of course, first and foremost for the fan and for giving data so what do we need to know now, of course, to convert my mobile phone well, we are now calculating from the head heart is now here is head Maths so have a good trip and one thing must be said so of course hydrogen is slash fuel mobility not really that much energy efficient in the first step if you calculate it that way because let's calculate briefly in this conclusion so if a diesel truck needs 35 liters per 100 kilometers then it is so that a liter of diesel 9, 6 kilowatt hours of energy equivalence if we now multiply that we come out with about 350 kilowatt hours of energy equivalence with kilowatt hours yes if we compare it with the one with the hydrogen truck which, let's say rounded up, hears it more quietly than we do Of course, we also have to consume this, which rounded up just under let's say ten kilograms of hydrogen per 100 km Calculate the energy equivalence for one kilo of hydrogen, which is 55 kilowatt hours, which means that for 100 kilometers the car still indirectly consumes 550 kilowatt hours, i.e. 550 kilowatt hours compared to diesel in the equivalent of around 350 kilowatt hours, so in the end it needs less energy Now, of course, we come to renewable energy if we have a hydrogen truck and the whole thing happens, this electrolysis from renewable energies then of course a shoe will come out of it we mustn't forget that we were in Germany last year, I think that was almost six and a half 1000 gigawatt hours of energy were simply given away because we couldn't store it, yes and that shows that must be used more sensibly, stored and then of course a shoe will be made out of it, i.e. from renewable energies in the electricity generation in this circle, then the whole thing will really be very, very sensible ll that has to happen then and of course these hydrogen filling stations have to be expanded for liquid hydrogen, as already mentioned in the intro, this does not really exist at the moment and until then the classic diesel trucks will still hold the flag, by the way, this is the one with the 630 hp like Mentioned 1100 liter tank yes so that makes more sense from an environmental point of view if we use renewable energies it is now roughly how much I think at how many by the end of 2030 otherwise I think 60 percent will be renewable energies but I don't want to nail that fact it is more environmentally friendly if you do it right and the fact is, it is also quieter. In this whole debate, everyone always forgets that the noise that naturally arises as a result, hey here you don't need to say a v8 that accelerates or a v10 or a v12 that will always bother me but of course it gets louder and louder and noise pollution is such a thing and w o We of course no one is when a diesel truck accelerates here it wasn't quiet either the whistling of the fuel cell of course then the cooling, depending on the situation, there is also an aspect but the bottom line is that it is the better solution for the commercial vehicle sector, i.e. for trucks So for me a welcome thing you are of course very welcome to exchange ideas about it in the comments below and tell me what you think of the whole thing yes everyone has a different opinion about it I'm curious what she says, especially if you come from the area or if you of course come from the area of being a truck driver yourself or a company runs a shipping company, so people of you out there who really come into contact with this matter in whatever way I hope I was able to give you one offer a small glimpse into the future of commercial vehicle or truck mobility as far away from the car where we WI e said, hydrogen fuel cell is nothing because the energy expenditure is much higher than what a battery-powered vehicle, i.e. battery-electric powered vehicle, can ultimately do with this energy that is necessary to produce one kilo of hydrogen in the first place If you liked that, as I said in the comments below.

SOURCE : Mercedes  & Car Maniac