The hydrogen injection strategy's influence on the performance and emissions (exhaust, vibration, and noise) of a dual-fuel engine

Year 2024, Volume: 13 Issue: 4, 217 - 229, 31.12.2024

Nurullah Gültekin

https://doi.org/10.18245/ijaet.1553377

Abstract

The new trend in the search for alternative fuels for compression ignition engines is the hydrogen-diesel dual fuel (HDDF) mode. In order for dual fuel mode to provide maximum benefit in compression ignition engines, ECU-controlled fuel systems should be used, and their settings should be optimized. In this study, the effects of hydrogen energy ratio and hydrogen injection timing on engine performance, exhaust, noise, and mechanical vibration emissions in an ECU-controlled HDDF system compression ignition engine were investigated. The experiments were carried out at constant speed (1850 rpm), constant load (5 Nm), different hydrogen ratios (11, 14, 17, 20%), and different hydrogen injection timings (20, 30, 40, 50, and 60 °CA aTDC). The specific energy consumption decreased by 8.4%, NOx emissions decreased by 68.4%, and mechanical vibrations increased by 16.6% at a 14% hydrogen energy ratio and a 30°CA aTDC hydrogen injection timing. The main objective of the study is to determine the optimum hydrogen energy ratio and hydrogen injection timing in a compression ignition engine using HDDF.

Keywords

H2-diesel dual fuel engine, H_2 ration, H_2 injection timing, Engine performance, Emission (exhaust, noise, and mechanical vibration)

Ethical Statement

I declare that this study is an original study; that I have acted in accordance with scientific ethical principles and rules in all stages of the study, including preparation, data collection, analysis and presentation of information; that I have cited all data and information not obtained within the scope of this study and included these sources in the bibliography; that I have not made any changes to the data used, that I have accepted all terms and conditions of the Committee on Publication Ethics (COPE) and that I have complied with ethical duties and responsibilities. I declare that I accept all moral and legal consequences that will arise in the event that a situation contrary to this declaration I have made regarding the study is detected at any time

Thanks

The author expresses gratitude to Karamanoğlu Mehmetbey University.

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