The effects of fuel-injection schedules on emissions of NO<sub>x</sub> and smoke in a diesel engine during partial-premix combustion

Eastwood, P G; Morris, Tim; Tufail, Khizer; Winstanley, T; Hardalupas, Y.; Taylor, A. M. K. P.

doi:10.4271/2007-24-0011

Cited by 8 publications

(2 citation statements)

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“…For two-stage injection, the first injection is also called the pilot injection, and the second injection is also called the main injection. Based on the injection timing, the early injection strategy can be divided into three patterns, as seen in Figure 3: The injection closest to TDC is defined as late; that farthest from TDC is defined as early; and the one in between is defined as middle [24]. The demarcation points of these three patterns in this paper are defined as 60°, 40°, and 20° BTDC, respectively.…”

Section: Conception Of Hcci and Pcci Combustionmentioning

confidence: 99%

A Review of Early Injection Strategy in Premixed Combustion Engines

Liang

Zhang

et al. 2019

Applied Sciences

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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.

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Section: Conception Of Hcci and Pcci Combustionmentioning

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

“…Dec et al, 2000), resulting in greater premixing and in turn lower smoke levels due to either shorter formation time, or through enhancing soot oxidation (e.g. Eastwood et al, 2007).…”

Section: Introductionmentioning

confidence: 99%