Nerys -
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Originally Posted by Nerys
So according to this article hydrogen injection might even decrease mpg since it will increase the flame front speed to greater than the actual piston speed we typically see being careful in little cars? ie it would be more suited for performance cars?
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That agrees with what I quoted back in post #130 :
http://ecomodder.com/forum/137151-post130.html
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Diesel Dynamometer Testing Analysis
Hydrogen-Boost
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In the charts below the light blue shaded area represents the possible savings with Hydrogen Boost. The yellow shaded areas represent the possible NEGATIVE savings with Hydrogen Boost. Notice that at idle there is always a negative savings and at low cruise the savings may be negative or slightly positive. As stated in recent newsletter and documents the Hydrogen Boost benefits are especially prevalent when high power and torque are being produced (when lots of fuel is being combusted). This really shows that Hydrogen Boost can be most valuable with vehicles that are heavily loaded or underpowered.
The conditions where Hydrogen Boost may improve mileage the least is when the driver is already implementing driving tips like slow acceleration and cruising at low speeds and throttle settings. It may be possible that the cost of the hydrogen production could be higher than the benefits of that hydrogen to the miniscule amounts of fuel that are being combusted while using these efficient driving techniques. This is exaggerated when the operator sets his hydrogen production too high for the engine he is operating. ...
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CarloSW2