<>A simple way to prove the whole design would be to have a bottle of the gas installed that could be switched on by design. Then run without it on, and with it on, and compare the results. If there is no positive results from running with the bottle turned on, then no amount of gas generated by using the alt could do any good at all.
Being a guy who would like to see a real world test of the actual device, I would differ with you. I think your suggestion is reasoned. It does make an assumption that I am not comfortable with. And that assumption is that the inventor and dectractors fully understand what the contraption is achieving, or the effect it is producing. For that reason I would rather see a test run with the device, and then a test run without it. Hook as many monitors as possible up to the vehicle and provide an equal serious of exercises both with and without the device. Then take a look at the data.
<>But as was pointed out upthread, there have been tests of internal combustion engines that have shown a positive change in energy output, a cleaner burn, and a cooler running system using small amounts of HHO gas to supplement the normal fuel. Whether those gains are large enough to put a bit of extra load on the alt is the real question.
Yes, in addition to others, I think that is a valid question.