Decarbonizing combustion with hydrogen blended fuels: An exploratory study of impact of hydrogen on hydrocarbon autoignition

Abstract

Blending hydrogen to existing fuel mix represents a major opportunity for decarbonisation. One important consideration for this application is the chemical interaction between hydrogen and hydrocarbon fuels, arising from their different combustion chemistries and varying considerably with combustion processes. This paper conducted an exploratory study of hydrogen's impact on autoignition in several combustion processes where hydrogen is used as a blending component or the main fuel. Case studies are presented for spark ignition engines (H2/natural gas), compression ignition engines (H2/diesel), moderate or intense low-oxygen dilution (MILD) combustors (H2/natural gas), and rotational detonat..