|
Re: Hydrogen engines
Hydrogen can be used in a modified otto-engine, BMW have for example built several of that type of engine. The output of the hydrogen engine is a little lower compared to its gasoline counterpart.
Hydrogen does also burn with a temperature similar to gasoline, but its laminar flame speed is much higher. Acetylene does burn a little hotter, but just similar to nitromethane at 2400 degC. The flame speed of acetylene is however lower compared to hydrogen.
That pure oxygen increase flame speed and temperature is nothing new, it does apply to gasolien aswell.
Using pure oxygen and a fuel ther will however not much of a point using the otto engine, since a turbine with a rocket style gasgenerator will do the trick.
The main drawback with hydrogen today is the production as it's mostly made by cracking it off hydrocarbon chains. Making enough hydrogen to replace gasoline using for example solarpower isn't something that is easy done.
|