Effect of injection-strategy on combustion, performance and emission characteristics in a DI-diesel engine fueled with diesel from direct coal liquefaction

Zhuang, Jian; Qiao, Xinqi; Bai, Jinlong; Hu, Zhi Yi

doi:10.1016/j.fuel.2013.12.032

Cited by 45 publications

(23 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the first-stage heat release became inconspicuous when the injection interval was longer than 24 CAD. Zhuang et al [83] investigated the effects of first injection timing on combustion, performance, and emission characteristics in a DI-diesel engine fueled with diesel from direct coal liquefaction under second injection timing at 1 • ATDC. The first injection timing was changed from 45.5 • to 8.5 • BTDC.…”

Section: First Injection Timingmentioning

confidence: 99%

“…The contrary results between moderate and heavy EGR were due to the differences in ignition delay and air-fuel mixture conditions. Zhuang et al [83] investigated the effects of first injection quantity in a DI-diesel engine fueled with diesel from direct coal liquefaction. The first injection quantity was varied from 2 to 6 mm 3 /cycle, timing was changed from 44.5 • to 7.5 • BTDC, and the second injection timing was fixed at −1 • BTDC.…”

Section: First Injection Quantitymentioning

confidence: 99%

See 1 more Smart Citation

A Review of Early Injection Strategy in Premixed Combustion Engines

Liang

Zhang

et al. 2019

Applied Sciences

View full text Add to dashboard Cite

Due to the increasing awareness of environmental protection, limitations on exhaust emissions of diesel engines have become increasingly stringent. This challenges diesel engine manufacturers to find a new balance between engine performance and emissions. Advanced combustion modes for diesel engines, such as homogeneous charge compression ignition (HCCI) and premixed charge compression ignition (PCCI), which can simultaneously reduce exhaust emissions and substantially improve thermal efficiency, have drawn increasing attention. In order to allow enough time to prepare the homogeneous mixture, the early injection strategy has been utilized widely in HCCI and PCCI diesel engines. This paper is aimed at providing a comprehensive review of the effects of early injection parameters on the performance and emissions of HCCI and PCCI engines fueled by both diesel and alternative fuels. Various early injection parameters, including injection pressure, injection timing, and injection angle, are discussed. In addition, the effect of the blending ratio of alternative fuels is also summarized. Every change in parameters has its own advantages and disadvantages, which are explained in detail in order to help researchers choose the best early injection parameters for HCCI and PCCI engines.

show abstract

Section: First Injection Timingmentioning

confidence: 99%

Section: First Injection Quantitymentioning

confidence: 99%

A Review of Early Injection Strategy in Premixed Combustion Engines

Liang

Zhang

et al. 2019

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The multiple-injection strategy is widely investigated to decrease soot and NOx emissions and combustion noise [17]. This study was aimed to assess the effects of pilot injection on cylinder pressures and exhaust emissions in a diesel engine fueled with diesel-MF blends with the technique of EGR, and few studies have been reported in this field.…”

Section: Introductionmentioning

confidence: 99%

Effects of pilot injection on combustion and emissions characteristics using 2-methylfuran/diesel blends in a diesel engine

et al. 2020

View full text Add to dashboard Cite

A direct injection compression ignition engine fueled by diesel blended with 10% or 30% mass proportion of 2-methylfuran was experimentally studied. The in-cylinder combustion pressure, regulated emissions and particulate matter emissions at different pilot injection timings and masses were investigated under the exhaust gas re-circulation mode. It was found the blending with methylfuran increased the peak in-cylinder pressure and retarded the combustion phase at different pilot injection timings. The addition of 30% methylfuran increased the peak in-cylinder pressure and heat release rate gradually along with the advancement of pilot injection timing. The NOx, HC, and CO emissions increased with the advancement of pilot injection timing when the pilot injection proportion was fixed at 20%, and the blending with methylfuran reduced HC and CO emissions but increased NOx emissions considerably. The 30% methylfuran addition could significantly reduce nucleation mode and accumulation mode particles at different pilot injection timings and masses compared with pure diesel. In addition, the particulate mass concentration of 30% methylfuranaddition remained at very low levels under all experimental conditions.

show abstract

“…Also, they reported that the interval between pilot and main injections is important to reduce the smoke emission. Zhuang et al [26] also studied the effect of injection strategy (single injection and multiple injection) on combustion performance and emission characteristics in a direct injection diesel engine. They reported that the application of pilot injection can reduce NOx emission with an acceptable level of soot emission.…”

Section: Introductionmentioning

confidence: 99%