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Can pure oxygen be used in internal combusion gas or diesel engines?
If no, what percentage could be used?
If no, what percentage could be used?
"Can pure oxygen be used in internal combusion gas or diesel engines?"
An engine is only 20% efficient due to the air ratios, so theoretically adding more oxygen to a combustion chamber would increase the efficiency of that engine.
However the nitrogen acts as a cooling agent in the chamber and reacts at combustion temperature levels of 2400K to produce NOx - without the nitrogen i think not even ceramic exhaust ports could withstand the temperatures.