Nanoparticle Filtration Characteristics of Advanced Metal Foam Media for a Spark Ignition Direct Injection Engine in Steady Engine Operating Conditions and Vehicle Test Modes
Autor: | Dongyoung Jin, Wonwook Jang, Juwon Kim, Simsoo Park, Cha Lee Myung, Jeongmin Lee |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2015 |
Předmět: |
Control and Optimization
Materials science Particle number Analytical chemistry Energy Engineering and Power Technology Metal foam lcsh:Technology Condensation particle counter Automotive engineering law.invention gasoline particulate filter jel:Q40 law jel:Q jel:Q43 sub-23 nm particles jel:Q42 jel:Q41 jel:Q48 jel:Q47 Electrical and Electronic Engineering Gasoline Engineering (miscellaneous) Filtration jel:Q49 pressure drop Diesel particulate filter particle number Renewable Energy Sustainability and the Environment lcsh:T jel:Q0 jel:Q4 Ignition system gasoline direct injection engine Particle Energy (miscellaneous) |
Zdroj: | Energies Volume 8 Issue 3 Pages 1865-1881 Energies, Vol 8, Iss 3, Pp 1865-1881 (2015) ENERGIES(8): 3 |
ISSN: | 1996-1073 |
DOI: | 10.3390/en8031865 |
Popis: | In this study, the particle formation and reduction characteristics at the engine-out position, after a three-way catalyst (TWC) and a metal foam gasoline particulate filter (GPF), were evaluated for a gasoline direct-injection (GDI) engine under part-load operating conditions. The vehicle tests were performed under the Federal Test Procedure-75 (FTP-75) and the Highway Fuel Economy Test (HWFET) modes. Particle number (PN) concentrations, size distributions, and the filtering efficiency with the GPF were evaluated with a condensation particle counter (CPC) and a differential mobility spectrometer (DMS500). Under steady engine operating conditions, the PN concentrations at the engine-out position were 9.7 x 10(5)-2.5 x 10(6) N/cc. While, the PN concentrations after the GPF were 9.2 x 10(4)-3.5 x 10(5) N/cc, and the PN was reduced by 77%-96%. The PN filtering efficiency with the GPF-GDI vehicle reached approximately 58% in the FTP-75 and 62% in the HWFET mode. The PN concentration of the GPF-GDI vehicle was significantly reduced to 3.95 x 10(11) N/km for the FTP-75 and 8.86 x 10(10) N/km for the HWFET mode. The amount of nucleation mode particles below 23 nm was substantially reduced with the GPF-GDI vehicle. The fuel economy, CO2, and regulated emissions of the GPF-GDI vehicle were equivalent to those of the base GDI vehicle under the vehicle certification modes. |
Databáze: | OpenAIRE |
Externí odkaz: |