A study on the characteristics of spray and combustion in a HCCI engine according to various injection angles and timings

Kim, Hyung-Min; Ryu, Jea-Duk; Lee, Kihyung

doi:10.1007/bf03161719

Cited by 12 publications

(9 citation statements)

References 6 publications

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“…Figure 3 shows the power comparison between the naturally aspirated engine and the turbojet engine. [6].…”

Section: Performance Comparison Of Aeroenginementioning

confidence: 99%

Current status of turbojets and their future

2023

ACE

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As one of the important equipment components, aeroengine reflects the national aviation development level and has an important strategic position and value. At present, there are four main types of aeroengines. This paper focuses on the mechanical structure, energy transfer mode, thrust weight ratio and existing defects of the turbine engine. From the point of view of mechanical design, the motion principle of engine components is discussed. From the point of view of energy, the performance test method of engine afterburner is studied, several feasible test schemes are proposed, and the application of turbine engine in miniaturization is discussed. From the point of view of energy saving, the power, maximum torque and thrust gravity ratio of naturally aspirated engine and turbine engine are compared, and the advantages and disadvantages of turbine engine are analyzed. Finally, the future development direction of aeroengine is studied, such as the wide application of new generation plasma engine and more efficient reburning afterburner.

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“…Figure 3 shows the power comparison between the naturally aspirated engine and the turbojet engine. [6].…”

Section: Performance Comparison Of Aeroenginementioning

confidence: 99%

Current status of turbojets and their future

2023

ACE

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“…As the injection timing was advanced beyond 30 • BTDC, NOx emissions fell near to nearly 0. Kim et al [63,64] investigated the effect of injection timing on the characteristics of mixture formation and combustion in an HCCI engine. The injection timing was set from 90 • to 40 • BTDC.…”

Section: Single Early Injectionmentioning

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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“…In order to overcome the weaknesses of HCCI combustion, various injection strategies (e.g. multiple injections, injection angles, and advanced injection timings), variable nozzle concepts, and modified piston head shapes were applied to extend the operating area in HCCI combustion by many researchers [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%