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Performance enhancement of a spark ignition engine fed by different fuel types

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Mar 2016 Italy Publisher:Elsevier BVJournal:Energy Conversion and Management, volume 112, pages 166-175 (issn: 0196-8904,

Authors: Hachem Hedfi; Abdessalem Jbara; Hedi Jedli; Khalifa Slimi; Anna Stoppato;

doi: 10.1016/j.enconman.2016.01.015

handle: 11577/3228068

Performance enhancement of a spark ignition engine fed by different fuel types

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Abstract

Abstract A numerical model based on thermodynamic and kinetic analyses has been established in order to evaluate biogas, hydrogen, natural gas or liquid petroleum gas as fuels in a spark ignition engine. For each fuel type, consumption as well as efficiency have been compared to gasoline in order to generate the same engine work (in the range of 0.28–0.43 W h/cycle). It was found that the spark ignition engine can be fed by an equimolar mixture of biogas and hydrogen. Moreover, thermal efficiency has been enhanced with respect to fuel consumption and exhaust gas recirculation (EGR). It was shown that an equimolar mixture between biogas and hydrogen increases the ITE by around 2.2% and decreases the mass consumption by less than 0.01 g/cycle. In addition, the combustion reaction progresses as well as CO and CO2 emissions have been characterized in real time.

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Italy

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Keywords

Biogas; Hydrogen; Liquid petroleum gas; Natural gas; Spark ignition engine; Thermodynamic analysis; Energy Engineering and Power Technology; Fuel Technology; Nuclear Energy and Engineering; Renewable Energy, Sustainability and the Environment

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