Reply to post: Re: Whatever happened to Hydrogen?

New battery boffinry could 'triple range' of electric vehicles

Kiwi Silver badge

Re: Whatever happened to Hydrogen?

Never mind my Tesla 3, I'm still waiting for my 2008 Hydrogen-powered BMW. They (and Toyota) promised me!

Have they stopped drilling wells, looking for hydrogen?

I'd forgotten the ads BP used to run here about how they were developing hydrogen as a fuel in conjunction with some of the car makers.

I'd always planned to crack my own hydrogen. It's not hugely hard, though compressing the resulting gas and storing it aren't so easy. All you need is a source of electricity (finally a use for wind turbines! A lot of hot gas around those things!) to drive electrolysis to break water into hydrogen+oxygen, and to drive a compressor to store the hydrogen into a tank till you want to fill your car. You can also bottle the oxygen if you want.

I had a friend who used to point out that it should take as much energy to break the two apart as you get by joining them, so having an electrolysis plant in your car could never work. That's when I came up with the idea of a home-based wind or solar power to effectively give you "free" fuel.

Making a tank in your car that's safe to store it after an accident is up to you.

I still want to test electrolysis in the vehicle - I'm wondering if feeding hydrogen and/or oxygen into the air filter would improve the fuel burning efficiency enough to more than make up for the losses in the system itself. NOT over-unity, not expecting that, but wondering if it'd make a more efficient reaction thus an overall efficiency gain. I'd test it by filling the tank and driving about 100k with the device off, back to the same service station, fill the tank again, turn the device on, drive the same trip and fill up again. Compare the fills. Same route at roughly the same time in the same wind/air temp/traffic conditions, trying to match acceleration etc as well (so no aggressive overtaking). Air temp affects the volume of the air (colder means more air into the cylinder, which gives a power increase) - a few things to account for. I expect it'll be a net loss but hey. Will finally prove some maths one way or another for me.

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