Comments by "Zrips" (@Zripas) on "Engineering Explained" channel.

  1. Congrats! You have been duped!!! You win!!! Nothing!!! There is no such thing as car running on water, anyone saying that there is either has no idea what they are talking about or just plain lying.
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  2. Because magic isint real.
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  3. @alphaschneider2468 First law of thermodynamics disagrees with you.
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  4. Hydrogen has so many drawbacks that no one wants to deal with it. Its non starter. Synthetic fuel sound cool and all, but it costs crap ton of money to produce. Best option is electrification. More charging stations, better battery technology, more recycling plants and so on. There is no point to invest money in multiple technologies and waste your time on those when you already have a best solution at hand.
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  5. Hydrogen combustion engine was invented in 1806, so no, it's not new technology...
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  6. Its not fear mongering, its educating people on basic reality. Combustion engines are half the efficiency in comparison to fuel cell type ones, so its straight away no go. But this one is V8, and I don't think that its a mystery of some sorts to have higher fuel consumptions with more V's, so you have double no go. There is a fuel cell hydrogen car Mirai, it has 3 huge tanks to achieve 400 mile range. Try to imagine how far you would go with V8 with same amount... It would be like 100 miles... Its non starter. Could be fine as a hobby, maybe even for racing, but non starter for daily use.
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  7. 17 gallon fuel tank is a meaningless number as those usually are in most compact shape possible, while hydrogen tanks need to be cylindrical without exceptions. Hydrogen basically uses existing car technology to increase its efficiency, its not like its some weird 100% new tech, you could repurpose existing car engines, atleast for short time, due to how similar all of it is. So efficiency will not go that much higher than it is already, as its already using decades of technological advancements.
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  8. Why do you need 500 mile range? Do you often doing 500 mile drives without ever stopping?
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  9. Yes, because they DON'T make hydrogen combustion cars for the reasons he mentioned in this video.
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  10. Weight isn't that better, check Mirai car, its hydrogen car, its weight is actually higher (1,920 kg) than Tesla model Y (1,909). So you are not winning anything here when it comes to weight.
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  11. Hydrogen engine was invented in 1806, it worked this way for past 218 years, on what basis you can say that it will work any differently now?
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  12.  @rawman5000  Yes, because phones are not cars... Hydrogen engines already utilizes all the advancements gasoline engines made in past century or so, yet those engines stopped meaningfully improving for past few decades. There isn't much to improve anymore as its all limited by basic laws of physics. Smartphones on another hand still can go further as there is still some areas where it can improve, not much tho, as those are already quite close to the peak performance. Sooner or later every technology hits its peak, ICE engines did that 2 decades ago, smartphones starting to get there too.
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  13. Liquid hydrogen could potentially be used for bigger equipment which can utilize it straight away until full depletion, but its really narrow use case and cooling hydrogen to such extremes is quite expensive on its own, so not many will want to even attempt doing it.
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  14. its not a new technology and it barely improved over the decades it was around, and no one is even promising improvements on it, let alone introducing ones...
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  15. There isn't much to evaluate: its fake.
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  16. There are only Hydrogen fuel cell cars as a real world example, you have 3 huge tanks in a car, which means that you have HUGE middle console, tiny back seat, and tiny trunk. This is to give you 400 miles of range. But keep in mind that this is with hydrogen fuel cells which are TWICE as efficient as HICE type engines, efficient HICE engines, so with this V8 you would need 6+ tanks to get 400 mile range, basically you will have Universal chasi with only 2 seats without any actual free space. Not a good deal...
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  17. Because technology like this CAN'T exist... There is no such thing as creating hydrogen on demand, anyone saying otherwise are either lying or just repeating a lie.
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  18. To liquefy hydrogen you would need to cool it down, way way below 0C, which is impossible to be maintained for regular cars, so not an option and basically will never be one.
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  19. Then go to your garage if you have one, close it, turn on your car and wait there (sarcasm, don't actually do it)... Lets see how it will end up for you, after all CO2 is a scam... So you should be juuuuuust fine. Right?
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  20. You could, if you can keep that hydrogen at -252C temperature. Just a reminder that absolute zero is at −273.15C, so you can imagine how difficult and impractical it is.
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  21. He does need it to be in weight and not volume. You can have liquids in volume or weight, as there is no difference between those numbers, but with gas type materials you can only go with weight.
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  22. Engineers are still limited by laws of physics... No amount of IQ will beat those.
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  23. Depends how you look at it. He did invested his own money into it, he did worked out his ass to get that company out of ground and so on. So like, what would qualify you as a maker of the company by you?
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  24. Liquid hydrogen needs to be under -252C, arctic gets at most to -68C (record, it way warmer than this), so realistically you would still have around 200 degree difference
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  25. Not possible. You need more energy than you will get back from entire process. In simplest explanation would be: you need 2000g hydrogen to make 1000g of hydrogen.
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  26. Yea, who cares about environment we live in, lets just wait and see what happens... And I think you are talking about 2035 and not 2030.
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  27. This video is 1 year old, how did that toyota v8 engine end up?
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  28. @duanenavarre7234 Its not schemes, its called "Scams"... Water powered cars never existed and will not exist without some extremely major breakthroughs in relativate technologies, if its even possible.
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  29. Pretty much prove wrong or give hope? So basically it doesn't do anything special at all? Which part was proven wrong exactly?
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  30. NO such thing as creation on demand.
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  31. Hydrogen is already energy dense, atleast by weight. And it burns as efficiently as it can, already. Storing it in liquid form is extremely inconvenient thing to do, as it will need to remain under -252C which is physically impossible to happen for longer periods of time. Basically it would boil off in like 3 days, so once you filled up your tank you would need to use it up in next few days or it would start venting out, not a good thing to have, especially if your car is in a some enclosed space.
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  32.  @akiali2632  ICE engines aren't really getting any more efficient, we are talking about tiny percentage improvements over the years, as there isn't much to improve anymore.
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  33.  @akiali2632  With combustion engines its more or less always huge jump in performance at the start, then it slowly gets tiny boosts here and there, but nothing special. Hydrogen combustion engine is non started from the start, as hydrogen fuel cell engines already offer 2x the range.
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  34. Says who?
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  35. First law of thermodynamics.
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  36. It can be done because it was written in news paper of some sorts?... Have this magical tech was actually ever tested and not just "Its real because this guy said so"?
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  37. And why exactly is it bad to look at a thing from engineering side and realize that it makes no sense? If it doesn't even make sense on engineering side, how would it make any sense on practical one?
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  38. It would be extremely delayed between a need to increase amount of hydrogen being pumped and it actually being pumped. And this brings out base issue with liquid hydrogen, it WILL boil off on its own over few days, aka at the moment you fill up your car with it, you better use it constantly, and trips to refueling station would be like every 3 days or so, without exceptions, or you will be stranded with empty tank.
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  39. Which part in this video was wrong and why?
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  40.  @danielkotzer636  Wait, are you one of those who thinks that it's possible to have hydrogen on demand? To address some points you made here, while you can use different combustible gases in engines, every single one needs something slightly different, while with hydrogen that list of needs is extra long. Have you ever heard of hydrogen embrittlement? It's a thing where hydrogen will eat through metals its in contact with, this is why all hydrogen tanks are being coated with ceramics, which helps out with that, but doesn't resolve issue entirely. Considering that, you will need special engine made of special metal alloy which is more resistant to hydrogen embrittlement, which means that you can't just use any engine out there, atleast not for longer use times. Even ceramic coated hydrogen tanks have literal expiration dates printed on them and you will HAVE to replace them after few years. Will try asking again, what was actually wrong in this video and why? Like actual tell me which statement you are addressing here and what is the "correct" answer.
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  41.  @danielkotzer636  "There is a material from which hydrogen balloons can be made, but whoever made them was forbidden to sell them because it is a "military secret"" And your source for this is...? "Just trust me bro"? " I guess for the engine as well, after all the engine is almost never exposed to hydrogen, it reaches the piston and immediately burns." In which magical way do you think this hydrogen would reach engine? And i'm hoping here that you do know how engines actually work... Right? One cycle to draw in hydrogen into cylinder and then compress it, next one would be the burning one and excusing remains from that combustion, so you have half of the cycle not only with hydrogen in it, but with compressed hydrogen... So yea, you are obviously wrong here. "There are welding machines that use electrolysis to produce hydrogen and immediately it burns" Cool beans, now, did you noticed slight difference between this welding machine and a car? Maybe that electrical cable going to the wall?... Will make it really simple for you. To make 1 kg of hydrogen you will need 2kg of hydrogen, and no, those numbers are not backwards. You will need twice as much hydrogen to use it as energy source to produce half of it as return, and this is only for self production, this doesn't even include ability to use any excess for actual car propulsion and this is with hydrogen fuel cell technology which is twice the efficiency of combustion engines. Do you see potential issue here? "if they didn't find a solution for it, they wouldn't sell it" Every single part in your car has some sort of expiration date as it wears down naturally, difference between hydrogen tanks and those parts is that hydrogen tank wears out based on time. Just like there are no instructions to replace any part you buy, there might not be one specifically for the tank, but you should actually check tank itself as it should have expiration date printed on it. "but not to claim that it is not possible as in this video" No one said that it's not possible, entire issue boils down to it being impractical and extremely expensive to use. This entire video talks about required space for hydrogen only, is it possible to utilize entire interior of the car for hydrogen tanks? Well yes. Would anyone want car like that? No. Same thing with price per mile driven. Cost of maintenance is astronomical due to hydrogen embrittlement. Cost of hydrogen itself is extreme too as we have 0% of it on earth in its pure form, aka 100% of hydrogen needs to be produced. Hydrogen only sounds cool on paper but doesn't work as viable option in actual reality. You should actually do more research on this topic than just watching AI auto generated videos on youtube on how Toyota is breaking laws of physics because they (video creators) said so...
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  42.  @danielkotzer636  Its not my job, its my hobby to educate people. Toyota might present this magical v8 car, cool beans, they will sell like 10 of them and that's that. It's a hobby car, a car which is used to show off to your friends and not to use it for daily driving. The fact that you failed to counter any of my arguments shows that you either don't care what is actually true or you know it and just pretend that you don't
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  43. Hydrogen combustion engines are around 50% the efficiency in comparison to hydrogen fuel cell engines. Now go and look up hydrogen cars and check how "spacious" their interior are even with double the efficiency of engine...
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  44. Because Toyota builds hydrogen fuel cell cars and not combustion ones. Those are twice the efficiency, and even then you have 2 huge hydrogen tanks just to get that max 400 mile range.
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  45. Because breaking laws of physics is quite hard... Will make it really simple here, you need around 2kg of hydrogen to make around 1kg of hydrogen, and no, those numbers are not backwards. You might see potential issue here.
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  46.  @ARCSTREAMS  What you seen was a scam video claiming stuff Toyota never said. There are entire channels spreading nonsense videos like that.
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  47.  @ARCSTREAMS  There are strict rules for posting links in here, usually comments gets removed automatically independent where this link leads you too. So avoid doing that or expect it to be auto removed with high probability. There are no official videos from Toyota to support your statement here, there are only bunch of fake channels making those claims. Conversion of hydrogen from water takes (as example) 100kW, while using this amount of hydrogen with most efficient hydrogen cell engine you will get back around 500kW, which means that you are loosing half of energy by trying to convert hydrogen from water onboard, which means... Water powered cars do not exist and anyone who claims that those do are simply either lying or have no idea what they are talking about. Like seriously, if you could power car with water, then instead of coal electric plants we would have water electric plants... But we don't, because technology like that doesn't exist. And no, there is no grand conspiracy here...
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  48. Because problem actually exist and we are trying to solve it
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  49.  @axoneer7806  Pollution?
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  50. Och you are one of those... While there is always carbon in air, issue isn't with it being there, issue is with AMOUNT of it in there... Aka EVERYTHING in high doses isint healthy, heck you can even overdose on drinking water or breathing pure oxygen. There is simply to much of CO2 in the air. And what is really weird is that you claiming that global warming is a hoax and that we should not go with cleaner solutions is basically 101 big oil company propaganda. In which reality going with cleaner solutions is bad?
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