Effect of hydrogen addition on RCCI combustion of a heavy duty diesel engine fueled with landfill gas and diesel oil |
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| Affiliation: | 1. Department of Mechanical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran;2. Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran;1. Pontifícia Universidade Católica de Minas Gerais, Av. Dom José Gaspar, 500, Coração Eucarístico, Belo Horizonte, Minas Gerais, Brazil;2. CMT-Motores Térmicos, Universitat Politécnica de Valéncia, Camino de Vera s/n, 46022 Valencia, Spain;1. Vehicle Powertrain System Research Laboratory, School of Automotive Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran;2. Aerothermochemistry and Combustion Systems Laboratory, Swiss Federal Institute of Technology, Zurich CH-8092, Switzerland;3. School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran;4. Engine Research Center, University of Wisconsin-Madison, Madison, WI, USA;1. School of Automotive Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran;2. School of Engineering and Computer Science, University of Hertfordshire, Hatfield, UK;1. Faculty of Mechanical Engineering, Islamic Azad University, Tabriz Branch, Tabriz, Iran;2. Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran;3. Department of Mechanical Engineering, Islamic Azad University, Shabestar Branch, Shabestar, Iran |
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| Abstract: | The aim of this study is to investigate the effects of hydrogen addition on RCCI combustion of an engine running on landfill gas and diesel oil. A single cylinder heavy– duty diesel engine is set in operation at 9.4 bar IMEP. A certain amount of diesel fuel per cycle is fed into the engine and hydrogen is added to landfill gas while keeping fixed fuel energy content. The developed simulation results confirm that hydrogen addition which is the most environmental friendly fuel causes the fuel consumption per any cycle to reduce. Also, the peak pressure is increased while the engine load is reduced up to 4%. Landfill gas which is enriched with hydrogen improves the rate of methane dissociation and reduces the combustion duration at the same time the engine operation would not be exposed to diesel knock. Moreover, hydrogen addition to landfill gas would reduce engine emissions considerably. |
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| Keywords: | Hydrogen RCCI Landfill gas Diesel engine Combustion |
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