A comparison study and multi-objective optimization of a DICI engine fueled with petroleum diesel and Fischer-Tropsch diesel
Fischer-Tropsch diesel (FT100) from indirect coal-to-liquid is a promising alternative fuel for diesel engines due to its potential of improved emissions and enhanced engine performances. The combustion and emission characteristics of a direct injection compression ignition (DICI) engine fueled with...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-08-01
|
| Series: | Fuel Processing Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378382025000487 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850142218662182912 |
|---|---|
| author | Panpan Cai Zheng Jing Chunhua Zhang Bing Han Gang Li Wenlong Song |
| author_facet | Panpan Cai Zheng Jing Chunhua Zhang Bing Han Gang Li Wenlong Song |
| author_sort | Panpan Cai |
| collection | DOAJ |
| description | Fischer-Tropsch diesel (FT100) from indirect coal-to-liquid is a promising alternative fuel for diesel engines due to its potential of improved emissions and enhanced engine performances. The combustion and emission characteristics of a direct injection compression ignition (DICI) engine fueled with FT100 and petroleum diesel (PD100) are systematically investigated under different injection timing (IT), common-rail pressure (Pcr) and brake mean effective pressure (BMEP). The experimental results show that, with the same engine control parameters, FT100 exhibits better fuel economy, milder combustion and lower soot emission compared to PD100. To achieve higher efficiency and cleaner combustion, further optimizations of control strategy for the FT100 engine are conducted. First, mathematical models for fuel economy, brake specific NOx (BSNOx) and soot are constructed by back propagation (BP) neural network. These models are fully verified for reproducibility and generalization ability. Subsequently, non-dominated sorting genetic algorithm (NSGA-II) is applied to realize multi-objective optimization of fuel economy and emissions. The results show that FT100 can operate and achieve multi-objective optimization under a wider range of IT and more decreased Pcr compared to PD100. Specifically, better fuel economy, lower BSNOx and soot emissions for FT100 could be achieved when the control parameters are set as follows: IT from 4.5 to 12.5 °CA BTDC, Pcr from 90 to 95 MPa, and BMEP from 0.725 to 0.950 MPa. Compared to PD100, the averagely optimal BSFC, BSNOx and K of FT100 could be decreased by 1.6 %, 25.3 % and 59.0 % at 0.88 MPa BMEP. This work provides a more suitable control strategy for DICI engine manufacturers using FT100, which helps to satisfy stricter emissions standards and increasing demand for sustainable fuel usage. |
| format | Article |
| id | doaj-art-b5ffc52a03974966814aedead6cfe368 |
| institution | OA Journals |
| issn | 0378-3820 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Fuel Processing Technology |
| spelling | doaj-art-b5ffc52a03974966814aedead6cfe3682025-08-20T02:29:09ZengElsevierFuel Processing Technology0378-38202025-08-0127310822410.1016/j.fuproc.2025.108224A comparison study and multi-objective optimization of a DICI engine fueled with petroleum diesel and Fischer-Tropsch dieselPanpan Cai0Zheng Jing1Chunhua Zhang2Bing Han3Gang Li4Wenlong Song5College of Mechanical and Electronic Engineering, Jining University, Qufu 273155, ChinaCollege of Mechanical and Electronic Engineering, Jining University, Qufu 273155, China; Corresponding auhtor..Key Laboratory of Shaanxi Province for Development and Application of New Transportation Energy, Chang'an University, Xi'an 710064, ChinaCollege of Mechanical and Electronic Engineering, Jining University, Qufu 273155, ChinaCollege of Mechanical and Electronic Engineering, Northwest A&F University, Yangling 712100, ChinaCollege of Mechanical and Electronic Engineering, Jining University, Qufu 273155, ChinaFischer-Tropsch diesel (FT100) from indirect coal-to-liquid is a promising alternative fuel for diesel engines due to its potential of improved emissions and enhanced engine performances. The combustion and emission characteristics of a direct injection compression ignition (DICI) engine fueled with FT100 and petroleum diesel (PD100) are systematically investigated under different injection timing (IT), common-rail pressure (Pcr) and brake mean effective pressure (BMEP). The experimental results show that, with the same engine control parameters, FT100 exhibits better fuel economy, milder combustion and lower soot emission compared to PD100. To achieve higher efficiency and cleaner combustion, further optimizations of control strategy for the FT100 engine are conducted. First, mathematical models for fuel economy, brake specific NOx (BSNOx) and soot are constructed by back propagation (BP) neural network. These models are fully verified for reproducibility and generalization ability. Subsequently, non-dominated sorting genetic algorithm (NSGA-II) is applied to realize multi-objective optimization of fuel economy and emissions. The results show that FT100 can operate and achieve multi-objective optimization under a wider range of IT and more decreased Pcr compared to PD100. Specifically, better fuel economy, lower BSNOx and soot emissions for FT100 could be achieved when the control parameters are set as follows: IT from 4.5 to 12.5 °CA BTDC, Pcr from 90 to 95 MPa, and BMEP from 0.725 to 0.950 MPa. Compared to PD100, the averagely optimal BSFC, BSNOx and K of FT100 could be decreased by 1.6 %, 25.3 % and 59.0 % at 0.88 MPa BMEP. This work provides a more suitable control strategy for DICI engine manufacturers using FT100, which helps to satisfy stricter emissions standards and increasing demand for sustainable fuel usage.http://www.sciencedirect.com/science/article/pii/S0378382025000487Fischer-Tropsch dieselDirect injection compression ignition engineCombustionEmissionsMulti-objective optimization |
| spellingShingle | Panpan Cai Zheng Jing Chunhua Zhang Bing Han Gang Li Wenlong Song A comparison study and multi-objective optimization of a DICI engine fueled with petroleum diesel and Fischer-Tropsch diesel Fuel Processing Technology Fischer-Tropsch diesel Direct injection compression ignition engine Combustion Emissions Multi-objective optimization |
| title | A comparison study and multi-objective optimization of a DICI engine fueled with petroleum diesel and Fischer-Tropsch diesel |
| title_full | A comparison study and multi-objective optimization of a DICI engine fueled with petroleum diesel and Fischer-Tropsch diesel |
| title_fullStr | A comparison study and multi-objective optimization of a DICI engine fueled with petroleum diesel and Fischer-Tropsch diesel |
| title_full_unstemmed | A comparison study and multi-objective optimization of a DICI engine fueled with petroleum diesel and Fischer-Tropsch diesel |
| title_short | A comparison study and multi-objective optimization of a DICI engine fueled with petroleum diesel and Fischer-Tropsch diesel |
| title_sort | comparison study and multi objective optimization of a dici engine fueled with petroleum diesel and fischer tropsch diesel |
| topic | Fischer-Tropsch diesel Direct injection compression ignition engine Combustion Emissions Multi-objective optimization |
| url | http://www.sciencedirect.com/science/article/pii/S0378382025000487 |
| work_keys_str_mv | AT panpancai acomparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT zhengjing acomparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT chunhuazhang acomparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT binghan acomparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT gangli acomparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT wenlongsong acomparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT panpancai comparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT zhengjing comparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT chunhuazhang comparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT binghan comparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT gangli comparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel AT wenlongsong comparisonstudyandmultiobjectiveoptimizationofadicienginefueledwithpetroleumdieselandfischertropschdiesel |