An experimental investigation of wide distillation fuel based on CTL on the combustion performance and emission characteristics from a CI engine

Sun, Yi; Sun, Wanchen; Guo, Liang; Zhang, Hao; Yan, Yuying; Zeng, Wenpeng; Lin, Sen

doi:10.1016/j.fuel.2021.122262

Cited by 9 publications

(4 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The literature review presented above shows that the fuel characteristics and injection strategies significantly affect the combustion and emission characteristics of the RCCI combustion mode. Previous studies of our research group have shown that CTL with high CN as the ignition fuel of RCCI combustion mode is conducive to improving the thermal efficiency of the engine. − However, the use of CTL as a pilot fuel with a two-stage injection strategy in dual-fuel engines is expected to further improve the thermal efficiency of the engine, thus expanding the operating range of the RCCI combustion mode. But related research has been reported.…”

Section: Introductionmentioning

confidence: 99%

“…In our research group, PCCI and RCCI combustion modes were studied in a CI engine using CTL as the base fuel. Sun et al 17 blended CTL with gasoline to form a wide distillation fuel and injected it into the cylinder. The combustion and emission characteristics of the PCCI combustion mode were studied under various starts of injection (SOI) along with the addition of EGR.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on the Effect of Two-Stage Injection Strategy for Coal-to-Liquid/Gasoline Reactivity-Controlled Compression Ignition Combustion Mode

Pan,

Sun,

Guo

et al. 2024

ACS Omega

Self Cite

View full text Add to dashboard Cite

An experimental study was carried out on a modified single-cylinder dual-fuel engine in reactivity-controlled compression ignition (RCCI) mode using pilot fuels with different physicochemical properties, and the effects of the pilot fuels and the two-stage injection strategy on the combustion and emission characteristics of the RCCI mode were explored. The results show that when coal-to-liquid (CTL) is used with a high cetane number as the pilot fuel, the reactivity stratification of the fuel-air mixture is more pronounced. With the advancement of pilot injection timing (SOI1), the heat release rate (HRR) of the CTL/gasoline mode gradually changes from a bimodal pattern to a unimodal pattern. Among them, the bimodal HRR includes CTL premixed combustion and gasoline flame propagation, as well as CTL diffused combustion and gasoline multipoint spontaneous combustion, while the unimodal HRR represents CTL premixed combustion and gasoline multipoint spontaneous combustion. However, the HRR of the fossil diesel/gasoline RCCI combustion mode always exhibits a unimodal form. With the advancement of the main injection timing (SOI2), the gravity center of heat release (CA50) is more advanced when using CTL as the pilot fuel due to the short ignition delay. Overall, compared to fossil diesel, using CTL as the pilot fuel is conducive to controlling the pressure rise rate, which expands the operating range of the RCCI combustion mode. Besides, for both pilot fuels of CTL and fossil diesel, the advancement of SOI1 lowers particle emissions, and the advancement of SOI2 reduces NOx emissions, while the two-stage injection achieves higher indicated thermal efficiency.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the Effect of Two-Stage Injection Strategy for Coal-to-Liquid/Gasoline Reactivity-Controlled Compression Ignition Combustion Mode

Pan,

Sun,

Guo

et al. 2024

ACS Omega

Self Cite

View full text Add to dashboard Cite

show abstract

“…The synthesis technology is relatively mature and has been widely used in practice. , CTL fuel produced by the Fischer–Tropsch synthesis is a high-quality and promising alternative fuel. , Compared with the conventional petrodiesel fuel, it has a higher cetane number (CN), contains fewer heavy distillation components, and can be fused with diesel fuel in any proportion. Additionally, CTL fuel has lower nitrogen, sulfur, and aromatic hydrocarbon content, higher calorific value, and a low freezing point; thus, it exhibits higher volatility, higher fuel reactivity, and combustion stability. − Research on CTL fuel has focused on its combustion and emission characteristics. Sun et al showed that CTL fuel has a higher reactivity that shortens the ignition delay (ID) period; while the application of CTL fuel reduces NO x emissions, it also results in higher particulate matter (PM) emissions compared to diesel fuel.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, CTL fuel has lower nitrogen, sulfur, and aromatic hydrocarbon content, higher calorific value, and a low freezing point; thus, it exhibits higher volatility, higher fuel reactivity, and combustion stability. 11 − 14 Research on CTL fuel has focused on its combustion and emission characteristics. Sun et al 15 showed that CTL fuel has a higher reactivity that shortens the ignition delay (ID) period; while the application of CTL fuel reduces NO x emissions, it also results in higher particulate matter (PM) emissions compared to diesel fuel.…”

Section: Introductionmentioning

confidence: 99%

Spray and Combustion Characteristics of CTL–Diesel Fuel Blends in a Constant-Volume Combustion Chamber

et al. 2023

View full text Add to dashboard Cite

Coal-to-liquid (CTL) fuel is considered a promising alternative fuel for diesel engine applications in China owing to its excellent fuel properties. However, little research on the spray and combustion processes of CTL fuel has been scarce. Therefore, in this study, the spray and combustion characteristics of diesel fuel blends with different CTL fuel blending ratios were investigated in a constant-volume combustion chamber. The results show that under non-evaporation conditions (300 K), a longer spray tip penetration (STP) and enlarged spray cone angle (SCA) were obtained with a higher injection pressure owing to the enhanced turbulent interaction. The SCA of CTL fuel blending was larger than that of diesel fuel owing to its lower viscosity and slightly shorter STP. Under the evaporation condition (700 K), with an increase in the CTL mixing ratio, both the STP and SCA of the fuel exhibited a decreasing trend owing to the higher volatility. Meanwhile, as the CTL mixing ratio increased, the ignition delay period was shortened, and the flame lift-off length decreased, whereas both the integrated natural flame luminosity and combustion duration increased. The cetane number of CTL fuel plays an important role in the occurrence of these results.

show abstract

Effects of swirl enhancement on in-cylinder flow and mixture characteristics in a high-compression-ratio, spray-guided, gasoline direct injection engine

Shin

Kim

Son

et al. 2022

Case Studies in Thermal Engineering

View full text Add to dashboard Cite

An experimental investigation of wide distillation fuel based on CTL on the combustion performance and emission characteristics from a CI engine

Cited by 9 publications

References 70 publications

Study on the Effect of Two-Stage Injection Strategy for Coal-to-Liquid/Gasoline Reactivity-Controlled Compression Ignition Combustion Mode

Study on the Effect of Two-Stage Injection Strategy for Coal-to-Liquid/Gasoline Reactivity-Controlled Compression Ignition Combustion Mode

Spray and Combustion Characteristics of CTL–Diesel Fuel Blends in a Constant-Volume Combustion Chamber

Effects of swirl enhancement on in-cylinder flow and mixture characteristics in a high-compression-ratio, spray-guided, gasoline direct injection engine

Contact Info

Product

Resources

About