Exploring the potential benefits of Ethanol Direct Injection (EDI) timing and pressure on particulate emission characteristics in a Dual-Fuel Spark Ignition (DFSI) engine
AffiliationUniversity of Bedfordshire
Centre de Recherche en Informatique Signal et Automatique de Lille
University of Brighton
University of Lincoln
SubjectsDual-Fuel Spark Ignition (DFSI) engine
Subject Categories::J910 Energy Technologies
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AbstractNowadays, particulate matter emitted by vehicles severely impacts environmental quality and human health. In this paper, the potential benefits of Ethanol Direct Injection (EDI) timing and pressure on particulate emission characteristics in a Dual-Fuel Spark Ignition (DFSI) engine were initially and systematically explored. The experimental results illustrate that by delaying EDI timing from -340 ºCA to -300 ºCA, there is a significant benefit in both particulate number and mass concentration. Furthermore, the size distribution curve of particulate number changes from bimodal to unimodal, meantime size distribution curves of particulate mass consistently concentrate on the accumulation mode. By increasing EDI pressure from 5.5 MPa to 18 MPa, the droplet size of ethanol spray can be effectively reduced. The benefit of increasing EDI pressure is more apparent in reducing particulate number is than particulate mass. The concentration of number and mass for total particulates have a reduction of 51.15% and 22.64%, respectively. In summary, it was demonstrated that an appropriate EDI timing or high EDI pressure could be a practical and efficient way to reduce particulate emissions in a DFSI engine.
CitationLi X, Li D, Liu J, Ajmal T, Aitouche A, Mobasheri R, Rybdylova O, Pei Y, Peng Z (2022) 'Exploring the potential benefits of Ethanol Direct Injection (EDI) timing and pressure on particulate emission characteristics in a Dual-Fuel Spark Ignition (DFSI) engine', Journal of Cleaner Production, 357 (131938)
JournalJournal of Cleaner Production
SponsorsThis work is financially supported by the National Engineering Laboratory for Mobile Source Emission Control Technology (No. NELMS2017C01), and the European Regional Development Fund (ERDF) via Interreg North-West Europe (Project No. NWE553).
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