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what do you think of NVI hydrogen generator?
go to http://www.nationalvapor.com/ to see the NVI hydrogen generator.
It's bogus, don't buy or use it. Good ole fashioned snake oil, with a good ole fashioned snake oil description and sales pitch.
I looked at their web page, and it contained pages and pages of cyclic descriptions, press releases totally unrelated to their company, and found-less statements. The evasiveness of their website, and the gobs of stuff about what others (totally unrelated to NVI) have done, is usually a prime indicator of grade-A horse manure (just in case you ever want to research something in the future).
Now for the technical reasons:
I finally found something vague relating to how their device works, and the patents they have applied for. From this information it looks like:
1) It uses electricity from your car's alternator for the electrolysis
of water to produce hydrogen.
2) The hydrogen is channeled into your engine's air intake.
Let's examine this:
1) Yes, the electrolysis of water produces hydrogen and oxygen.
2) Yes, it is possible to pipe gases from an electrolysis chamber into your engine's air intake.
More than likely, the device can actually do the electrolysis and injection of the hydrogen into the air intake. Of course, with these sham products, they often don't even work like the manufacturer says, let alone fulfill any claims.
The claim is:
Adding hydrogen to the fuel-air mixture will improve engine efficiency and output.
The science:
1) The claim is bunk: The basis of their entire claim is wrong. The fuel-air mixture is specially controlled so that there is a proper amount of air for the amount of fuel so that the combustion is maximized (it's already 99.999% burnt). Adding any amount of hydrogen to the mixture will throw off the ratio and DECREASE combustion and efficiency. In fact, it was once tested whether natural gas added to an engine's intake could cause it to stall. The answer was "yes", and it only took a very small amount to do it.
Now, a small amount of hydrogen can allow a leaner mixture and slightly retarded timing due to a faster burn. This also allows for a higher compression ratio. All of this involves additional alterations to the engine and timing computer. Some of them (like compression), drastic. And if you run out of hydrogen (water) while such an engine is running... $$$$ to the mechanic. Of course, the NVI system couldn't even do this because:
2) Electrolysis too weak: Even if adding hydrogen could increase power, the device wouldn't produce enough hydrogen to do it. Electrolysis is a very slow and energy intensive means to create hydrogen. A car's electrical system simply isn't up to the task. An external hydrogen cylinder would be a better option, until you run out and your modified engine kills itself. BTW, a hydrogen tank is a much, much, cheaper option.... and it might actually work.
3) The Second Law of Thermodynamics: The physical LAW which prevents perpetual motion machines. The device uses electricity from your car to do the electrolysis. The electricity is produced from your alternator, which gets its energy from the engine. The engine gets its energy from the fuel. Even if adding hydrogen to the intake could increase engine output (or you modified your engine so it could), the electrolysis device would gobble up far more energy than it could add to your engine.
What should you do:
Don't buy it. Don't buy into it. This product and website are examples of BS. Learn about BS so that you can identify it in the future, and avoid it. If you did buy the product, do not install it, as it will probably damage your car. It if is installed, remove it ASAP. If you spent money on it, file a fraud complaint with the FTC or your state's attorney general, or equivalent government agency if you are outside the US.
Edit -- As EMT-B noted, NVI also makes a vapor generator. A vapor generator CAN help in an engine which has developed carbon buildups in two ways. 1) Reduce pings to improve compression and efficiency. 2) Help reduce or clean out some of the build up. 3) Lower combustion temperature if your EGR valve has failed. However, you can get a chemical head and valve cleaning at some service stations which will help that a lot. And if your EGR valve is broken, replace it. In a properly working and clean engine, adding water vapor either won't help, or will actually hinder the engine. NVI's vapor generator is also ridiculously priced.
See the link below for some fuel saving tips, and a list of other scams.
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