The paper presents an analysis of the experimental results of direct hydrogen injection in a dual-fuel diesel engine. The test object is a four-cylinder, four-stroke ADCR engine. An analysis of the following parameters was carried out: indicated mean effective pressure, peak pressure, angle of maximum pressure and released heat. Statistical analysis of the obtained results was carried out for each cylinder separately for four different hydrogen doses. Both early and late direct hydrogen injection were analyzed. The significance of the differences for each of the analyzed parameters and type of injection was determined. The stability of the combustion process was evaluated using the coefficient of variation CoV(IMEP).
Bayramoğlu K, Yılmaz S. Emission and performance esti-mation in hydrogen injection strategies on diesel engines. Int J Hydrogen Energ. 2021;46(57):29732-29744.
Berthelot JM, Cole JM. Composite materials: mechanical behavior and structural analysis. Springer, New York1998.
Brzezański M, Noga M, Szalek A. Operation of the fuel cell electric vehicle in moderate and low-temperature ambient conditions. SAE Technical Paper 2022-01-1129. 2022.
Carlucci AP, Ficarella A, Laforgia D, Trullo G. Multiobjec-tive optimization of the breathing system of an aircraft two stroke supercharged diesel engine. Enrgy Proced. 2015;82:31-37.
Dopona M, Foxhall N, Dutzler C. 912iS fuel injected aircraft engine. SAE Technical Paper 2012-32-0049. 2012.
European Commission. European Hydrogen & Fuel Cell Technology Platform. Strategic Research Agenda 2005.
Gerke U. Numerical analysis of mixture formation and combustion in a hydrogen direct-injection internal combustion engine. Swiss Federal Institute of Technology 2007.
Green Car Congress. High-pressure direct-injection hydrogen engine achieves efficiency of 42 %; on par with turbodiesels. Energy, technologies, issues and policies for sustainable mobility. 2009.
Hernández JJ, Salvador JB, Cova-Bonillo A. Autoignition of diesel-like fuels under dual operation with H2. Adv Mech Eng. 2019;11(6):1-8.
Jamrozik A, Grab-Rogaliński K, Tutak W. Hydrogen effects on combustion stability, performance and emission of diesel engine. Int J Hydrogen Energ. 2020;45(38):19936-19947.
Lata DB, Misra A. Theoretical and experimental investiga-tions on the performance of a dual fuel diesel engine with hydrogen and LPG as secondary fuels. Int J Hydrogen Energ. 2010;35:11918-11931.
Liu X, Srna A, Yip HL, Kook S, Chan QN, Hawkes ER. Performance and emissions of hydrogen-diesel dual direct injection (H2DDI) in a single-cylinder compression-ignition engine. Int J Hydrogen Energ. 2021;46(1):1302-1314.
Puzdrowska P. Analysis of changes in the temperature of the working medium in the cylinder and in the exhaust gas duct of a diesel engine for diagnostic purposes - state of research (in Polish). Journal of Polish CIMEEAC. 2020;15(1):89-101.
Saravanan N, Nagarajan G. An experimental investigation of hydrogen-enriched air induction in a diesel engine system. Int J Hydrogen Energ. 2008;33(6):1769-1775.
Serio De D, De Oliveira A, Sodré JR. Effects of EGR rate on performance and emissions of a diesel power generator fueled by B7. J Braz Soc Mech Sci Eng. 2017;39:1919-1927.
Siadkowska K. Experimental study of particulate emissions for direct hydrogen injection in a dual fuel diesel engine. SAE Technical Paper 2020-01-2197. 2020.
Siadkowska K, Barański G, Sochaczewski R, Wendeker M. Experimental investigation on indicated pressure and heat release for direct hydrogen injection in a dual fuel diesel engine. Adv Sci Technol Res J. 2022;16(3):54-66.
Siadkowska K, Czajka B, Ścisłowski K, Wendeker M. Analysis of propulsion units dedicated to test stands for aviation systems. Combustion Engines. 2021;185(2):39-43.
Soltic P, Hilfiker T, Hutter R, Hanggi S. Experimental com-parison of efficiency and emission levels of four-cylinder lean-burn passenger car-sized CNG engines with different ignition concepts. Combustion Engines. 2019;176(1):27-35.
Stępień Z. Synthetic automotive fuels. Combustion Engines. 2023;192(1):78-90.
Subramanian B, Thangavel V. Experimental investigations on performance, emission and combustion characteristics of diesel-hydrogen and diesel-HHO gas in a dual fuel CI engine. Int J Hydrogen Energ. 2020;45(46):25479-25492.
Szumska EM, Jurecki R. Technological developments in vehicles with electric drive. Combustion Engines. 2023;
Tira HS. Impact of alternative fuels and hydrogen – enriched gaseous fuel on combustion and emissions in diesel engines. Doctoral Thesis. 2013.
Wajand JA, Wajand JT. Medium- and high-speed internal combustion piston engines (in Polish). WNT. Warsaw 2005.