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Author Topic: New Yamaha engine for Toyota.  (Read 1607 times)

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Offline drumwrecker

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New Yamaha engine for Toyota.
« on: March 08, 2022, 04:41:51 pm »
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Offline farmer

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Re: New Yamaha engine for Toyota.
« Reply #1 on: March 08, 2022, 06:31:35 pm »
from what i know the main problem is storing the hydrogen on board, actually running the engine on it isn't that complicated.
i experimented with hydrogen in vehicles for a while, but only as an addition to diesel in my case... as in fuel + air, mine was fuel+air+h20 in gas form. it involved an electrolysis unit in the car drawing a current from the battery/alternator to break the hydrogen and oxygen bond apart. i was in spain and a guy there had one fitted onto his motorcycle... i think honda,but it was a long time ago. his was also just an additive rather than main fuel. i still have it in my audi , it's a good job but needs fairly regular upkeep.
full hydrogen would be very interesting, i saw in the hydrogen trials in america the price was similar to petrol but hydrogen is very plentiful and easily extracted so i think that would have to change for the better... how would the government tax it? ...bet they find a way.
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Offline black-k1

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Re: New Yamaha engine for Toyota.
« Reply #2 on: March 08, 2022, 06:34:09 pm »
The main problem with hydrogen is that it takes more energy to extract it than you get from it.
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Offline fjtwelve

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Re: New Yamaha engine for Toyota.
« Reply #3 on: March 08, 2022, 07:24:05 pm »
I'm interested in hydrogen fuel cells and their developmentband keep an eye on various need items. It's definitely got its place as one of several low co2 options especially for hgvs and trains, batteries and ev's are not the only solution. And don't get me started on why we aren't using the tidal hydro power option in the uk
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Offline drumwrecker

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Re: New Yamaha engine for Toyota.
« Reply #4 on: March 09, 2022, 12:07:15 am »
Quote from: fjtwelve on March 08, 2022, 07:24:05 pm
I'm interested in hydrogen fuel cells and their developmentband keep an eye on various need items. It's definitely got its place as one of several low co2 options especially for hgvs and trains, batteries and ev's are not the only solution. And don't get me started on why we aren't using the tidal hydro power option in the uk

Couldn't agree more about the tidal power.

Is electric going to be the new diesel fiasco I wonder?
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Offline armstrongracer

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Re: New Yamaha engine for Toyota.
« Reply #5 on: March 09, 2022, 10:19:33 am »
Storage is the reason why fuel cells really never took off. About 15 years ago I did some consultancy for a fuel cell manufacturer based in the Loughborough University science park who were  looking at scaling up manufacture of fuel cells.  The company I was working for then was bidding to do outsourced manufacturing of the fuel cells in Galway. The fuel cell company had done Black Cab conversions for the London olympics and had strong links with Suzuki, there was a fuel cell Burgeman in reception. Using wind energy to produce hydrogen by electrolysis should be a way to produce hydrogen at reasonable cost but you need a massive infra-stuctural  change to make Hydrogen viable for every day use. I always thought fuel cells would be the future.
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Offline farmer

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Re: New Yamaha engine for Toyota.
« Reply #6 on: March 09, 2022, 01:51:28 pm »
i did meet a hydrogen safety and combustion specialist... now there's a title. he was off the opinion the fuel cell/electrolysis route was brutally inefficient and agricultural! heaven forbid. he was using electronics and had other theories, he explained them to me at the time but it was like a different language... i had/have no clue how. his work took him away before i saw any practical example of his work. interesting/unusual guy.
i take it your cabs were hydrogen on demand systems rather than full hydrogen?
fuel cells still have a lot to offer. but i think a lot of research is needed, especially as you say in storage. 
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Offline Grumpy jase

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Re: New Yamaha engine for Toyota.
« Reply #7 on: March 09, 2022, 04:08:30 pm »
That exhaust manifold is a lovely thing.  What I cannot work out is why they have reversed the usual gas flow through the head.  Inlet would usually be where the ehaust is and vice versa?  The engine on which this is based (Lexus RCF) is conventional in the gas flow layout.  I cannot imagine how they expect to fit the resulting engine under the bonnet of anything.
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Offline farmer

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Re: New Yamaha engine for Toyota.
« Reply #8 on: March 09, 2022, 05:39:28 pm »
everyone loves a power bulge...
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Offline armstrongracer

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Re: New Yamaha engine for Toyota.
« Reply #9 on: March 11, 2022, 04:45:18 pm »
You've stolen my favourite chat up line  8)
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