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Water has chemical bonds and what does chemical bonds have to do with it
What are you saying that water has no energy? Than why does hydrogen have energy?
A lesson in releasing chemical energy is beyond the scope of a message board. If you don't understand the fundamentals you lack the science to understand.
Water is a compound of oxygen and hydrogen, and is quite stable. Hydrogen is an element, and it is very reactive and easily oxidized, which releases energy.
To use hydrogen as a fuel it must be separated from water or from natural gas, etc., which requires energy, such as electricity from a solar panel. Hydrogen can be transported in a tank, electricity can't. So producing hydrogen to use as a fuel in a car is basically a way of transporting energy.
What is differnce if you burning element or molecule? What determine what is energy or not that you burning ?
What is differnce if you burning element or molecule? What determine what is energy or not that you burning ?
Why does some have energy and others not?
Quote:
Originally Posted by DCforever
A lesson in releasing chemical energy is beyond the scope of a message board. If you don't understand the fundamentals you lack the science to understand.
Sweat, you won't get your questions answered here. It is not the purpose of this forum to give you a basic education.
If you don't have access to a school to learn basic science, or a public library, you may be able to find online resources to help. I suggest you start by looking up the basic concepts you're asking about on www.wikipedia.com. And for excellent free classes, register at https://www.khanacademy.org/
We won't know for sure until the production model specs are released, but preliminary figures are comparable to gasoline cars on both counts... fuel cost and range.
A better question would be cost per mile - which I believe is your objective with knowing how to fill it up and how far you can go on a fill-up.
However, as I have found out with my truck, it isn't just the $4/gal diesel and 18 mpg (.22 per mile) that you need to look at. It is also the maintenance. The $300 oil change (every 5k miles or $.06 ) and $200 fuel filter changes (every 15k miles or .013 per mile). Once you get to the higher mileage, the tranny and coolant flushes are in the hundreds too probably both might add another .01 per mile. DEF use is anywhere from $.005 to $.01 per mile. Total without taking tires, brakes, and belts into account is around .30 per mile.
Compared to our Volt. Which we will only have one oil change every two years (because you HAVE to change it every 2 years and costs $19.95 to change or around ). Electric cost is $.03 per mile and fuel cost is $.10 per mile.
My point is to make sure that the "fill-up" of the hydrogen car represents the majority of the cost per mile of driving. So if I said $.50 to fill up for 300 miles, but every 5,000 miles you have to change a catalyst at a cost of $2000, it would cost more than my diesel truck to drive at $.40 per mile.
A better question would be cost per mile - which I believe is your objective with knowing how to fill it up and how far you can go on a fill-up.
I think that fuel cost per mile, total operating cost per mile and vehicle range are better questions, yes. Cost per fill up is a goody stat... "Well, lessee... it costs about $6 to fill up my motorcycle, and more than $70 to fill my pickup... but then again, the pickup truck gets better mileage... "
Another factor that I predict will be be disruptive is that EVs and Hybrids and Fuel Cell cars will all have different maintenance cycles and different effective service lives. And a lot of the factors which go into those won't be fully known until we've been using them for a while. But I'm betting that hybrids will last longer than straight ICE vehicles, and pure EVs will last twice as long at least, but that longevity will be offset by a couple of battery replacements, at least. Fuel cells I can't really guess at, because I have no experience with them, and field reports on the few on the road so far are pretty sketchy.
But the fuel cost per mile is the short-term look, while the total operational cost per mile is the more meaningful long-term look.
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