Optimising the Particulate Emission Characteristics of a Dual-Fuel Spark Ignition Engine by Changing the Gasoline Direct Injection Strategy DOI Open Access
Xiang Li, Siyue Liu,

Wanzhong Li

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(19), P. 8713 - 8713

Published: Oct. 9, 2024

In the current global scenario, it is essential to find more effective and practical solutions mitigate problem of particulate emissions from vehicles. this research, emission characteristics with changing GDI pressure or applying a split strategy different second injection timings were initially explored in Dual-Fuel Spark Ignition (DFSI) engine, which employs Ethanol Port Injection (EPI) plus Gasoline Direct (GDI). The experimental results show that by increasing (PGDI) 5.5 MPa 18 MPa, ignition delay (θF) shows small decrease 0.68 degrees. parameters, such as maximum in-cylinder temperature (TMI) exhaust gas (TEG), each increase 53.75 K 13.84 K. An apparent reduction 59.5% 36.26% was achieved for concentrations number (NP) mass (MP), respectively. Particulate are effectively reduced an appropriate range timing (tGDI2). Under tGDI2 = −260 °CA, NP MP exhibit relatively lower level. However, delaying °CA −140 there than 60% concentration. research findings help offer new valuable insights into optimising DFSI engines. Moreover, could contribute novel optimisation

Language: Английский

Interaction between NOx reduction and soot oxidation for selective catalytic oxidation-selective catalytic reduction catalyst coated on diesel particulate filter: An experimental and numerical study DOI
Yingjie Chen, Piqiang Tan, Yang Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160055 - 160055

Published: Jan. 1, 2025

Language: Английский

Citations

0
Simulation of soot filtration and oxidation characteristics in the porous wall of a wall-flow CDPF DOI
Haozhong Huang,

Shunlong Tao,

Riyang Chen

et al.

Chemical Engineering Science, Journal Year: 2025, Volume and Issue: unknown, P. 121523 - 121523

Published: March 1, 2025

Language: Английский

Citations

0
Effect of Catalyst Coating Strategy on NOx Reduction and Passive Soot Oxidation for Selective Catalytic Oxidation-Selective Catalytic Reduction Catalyst on Diesel Particulate Filter DOI
Yingjie Chen, Piqiang Tan, Chaojie Yao

et al.

SAE technical papers on CD-ROM/SAE technical paper series, Journal Year: 2025, Volume and Issue: 1

Published: April 1, 2025

<div class="section abstract"><div class="htmlview paragraph">Selective catalytic oxidation/reduction catalysts coated on diesel particulate filters (SDPF) are an important technology route to meet next-stage emission regulations. The previous research of the group showed that compared with SDPF Cu-SSZ-13, novel selective oxidation-selective reduction (SCO-SCR) catalyst, which combined MnO<sub>2</sub>-CeO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> and can simultaneously improve NOx soot oxidation performance. Catalyst coating strategy is parameter affecting performance SDPF. In this study, effects different strategies SCO-SCR (C25, C50, C75, C100) in were investigated. results show that, as inlet gas temperature increases, NO emissions first decrease then increase, conversion efficiency increases decreases, rich-NO<sub>2</sub> area, NH<sub>3</sub> rate, N<sub>2</sub>O, CO, CO<sub>2</sub> emissions, pressure drop increase. By expanding catalyst efficiency, NO<sub>2</sub>, filter wall all increased, cake layer decreased. When 450 °C, there areas at both front end rear C100. 25% area increase regeneration efficiency. While impact N<sub>2</sub>O generation small. Still, it will lead excessive NO<sub>2</sub> emissions. increased magnitude decease expands.</div></div>

Language: Английский

Citations

0
Pyroelectric Pt-supported S-scheme heterojunction catalyst for effective photocatalytic degradation of VOCs containing soot driven by visible light DOI
Jiejing Kong, Miao Tang, Yujia Luo

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124858 - 124858

Published: Nov. 1, 2024

Language: Английский

Citations

3
Optimising the Particulate Emission Characteristics of a Dual-Fuel Spark Ignition Engine by Changing the Gasoline Direct Injection Strategy DOI Open Access
Xiang Li, Siyue Liu,

Wanzhong Li

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(19), P. 8713 - 8713

Published: Oct. 9, 2024

In the current global scenario, it is essential to find more effective and practical solutions mitigate problem of particulate emissions from vehicles. this research, emission characteristics with changing GDI pressure or applying a split strategy different second injection timings were initially explored in Dual-Fuel Spark Ignition (DFSI) engine, which employs Ethanol Port Injection (EPI) plus Gasoline Direct (GDI). The experimental results show that by increasing (PGDI) 5.5 MPa 18 MPa, ignition delay (θF) shows small decrease 0.68 degrees. parameters, such as maximum in-cylinder temperature (TMI) exhaust gas (TEG), each increase 53.75 K 13.84 K. An apparent reduction 59.5% 36.26% was achieved for concentrations number (NP) mass (MP), respectively. Particulate are effectively reduced an appropriate range timing (tGDI2). Under tGDI2 = −260 °CA, NP MP exhibit relatively lower level. However, delaying °CA −140 there than 60% concentration. research findings help offer new valuable insights into optimising DFSI engines. Moreover, could contribute novel optimisation

Language: Английский

Citations

0