Study of harmful emissions of a marine diesel when operating on fuel with a gas additive containing hydrogen

The use of hydrogen as a fuel has demonstrated a significant environmental advantage in the absence of harmful substances in the exhaust gases of marine diesel engines. However, current research is mainly focused on using hydrogen either in its pure form or as an additive to incoming air. The possibility of using gaseous hydrogen-containing additives directly to diesel fuel has been studied. An experimental installation designed to produce hydrogen from diesel fuel using a cavitation process has been developed, constructed and successfully tested. An experimental setup for producing hydrogen additives in diesel distillate fuel is described. To carry out the process of fuel gasification, a cavitation process using a rotary pulsation apparatus was used. The principle of operation of two centrifugal stages is applied to overcome the cavitation barrier. A chromatographic analysis of the resulting gas mixture was performed, and the physico-chemical properties of the fuel were analyzed. The ideal time period for fuel processing has been identified, ensuring the preservation of its qualities and achieving the largest volume of hydrating additives. A pattern of evaporation of fuel with a gas additive over a certain period of time was also established. The results of a study of harmful emissions from marine diesel when operating according to the screw characteristic on fuel with a gas additive containing hydrogen are presented, and a conclusion is made about the suitability of this type of fuel for marine needs. This study will significantly advance the issue of energy efficiency, cost-effectiveness and environmental friendliness of the composition of the resulting additive.