MATEC Web Conf.
Volume 244, 2018Innovative Technologies in Engineering Production (ITEP’18)
|Number of page(s)||10|
|Section||New Trends in Vehicle Technology - Automotive Engineering|
|Published online||05 December 2018|
Simulation of spark ignition engine performance working on biogas hydrogen mixture
Vilnius Gediminas Technical University, Department of Automobile Engineering, 03224 J. Basanavičiaus g. 28, Vilnius, Lithuania
2 Vilnius College of Technologies and Design, Technical Faculty, 01100, Olandų g. 16, Vilnius, Lithuania
* Corresponding author: email@example.com
Numerical simulations of Nissan Qashqai HR16DE engine with increased compression ratio from 10,7:1 to 13,5:1 was carried out using AVL BOOST software. Modelled engine work cycles while engine works with biogas (BG) and hydrogen (H2) mixtures. For biogas used mixture of 35 % carbon dioxide (CO2) and 65 % methane (CH4). Three mixtures of biogas with added 5 %, 10 % and 15 % H2 was made. The simulation of engine work cycles was performed at fully opened throttle and changing engine crankshaft rotation speeds: ne1 = 1500, ne2 = 3000, ne3 = 4500, ne4 = 6000 rpm. Simulation results demonstrated what adding hydrogen to biogas increase in-cylinder temperature and nitrogen oxides (NOx) concentration because of higher mixtures lower heating values (LHV) and better combustion process. Other emissions of carbon monoxide (CO) and hydrocarbons (HC) decreased while adding hydrogen due to the fact that hydrogen is carbon-free fuel.
Key words: Spark ignition engine / Biogas / Hydrogen / Performance
© The Authors, published by EDP Sciences, 2018
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