Experimental study on combustion characteristics of diesel/methanol-hydrogen dual fuel engine
On the basis of not changing the structure and parameters of Z6170 engine,an intake manifold injection sys-tem of methanol and reforming gas with enrich hydrogen produced by online catalyst reforming with exhaust waste heat is built.And the combustion characteristics of diesel/methanol-hydrogen dual fuel engine are studied.The experiment results show that the combustion duration(CA10-90)decreases gradually and the ignition delay period increases gradually with the increase of substitution ratio in the diesel/methanol dual fuel mode,and the combustion gravity center(CA50)first rises and then lags.Compared with the methanol mode,the ignition delay period is shortened and the combustion duration is pro-longed in the diesel/methanol-hydrogen mode at the same substitution ratio.The research results provide experimental sup-port for further optimization of the performance of diesel/methanol-hydrogen dual fuel engine.
diesel/methanol-hydrogen dual fuelcombustion characteristicssubstitution ratio
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