Combustion Stability Analysis

Maurya, Rakesh Kumar

doi:10.1007/978-3-030-11954-6_8

Cited by 7 publications

(1 citation statement)

References 109 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent times, combustion dynamics have been analyzed by using nonlinear dynamical and chaotic methods which can reveal additional information and nonlinear features associated with CCV. 5 These methods include phase space reconstruction (PSR) and related methods such as recurrence plots (RPs) and recurrence qualitative analysis (RQA), symbolization, multifractal analysis, 0–1 test, etc. The phase space diagrams for the in-cylinder pressure time series consist of twists, folds, and stretches in trajectories similar to a chaotic attractor.…”

Section: Introductionmentioning

confidence: 99%

Application of delay embedding and recurrence analysis to a noisy nonlinear map for cyclic combustion dynamics of SI engines

Singh

Maurya

2022

International Journal of Engine Research

Self Cite

View full text Add to dashboard Cite

A noisy nonlinear dynamical (NND) model available for cyclic variations in SI engines is examined using nonlinear time series methods. Heat release time series computed from this model is analyzed by employing bifurcation diagrams, return maps, recurrence plots, and recurrence quantitative analysis techniques. The analysis methodology is at first applied to a noisy Logistic map to optimize the necessary parameters, and later the same is used for the NND map. The presence of noise hides the local patterns of the dynamics and higher periodic orbits, making the bifurcation diagrams look fuzzy for both maps. An increase in the noise level and uncombusted residuals in the NND map advance the onset point of bifurcations toward a higher equivalence ratio. The application of the NND model is extended to represent the SI engine combustion dynamics for a higher amount of internal EGR as it is favored for cycle-resolved control due to its feedback period of one combustion cycle. The combined effect of lean charge and internal EGR leads to a more complex dynamical nature. The addition of a higher amount of internal EGR adds some complex chaotic-like regions in the bifurcation diagrams. For a low level of fluctuations in the NND map, more than four noisy periodic orbits are observed for such operating conditions. The geometry of phase space trajectories for the low-level noisy model data with a high level of internal EGR resembles a chaotic system. Bifurcation diagrams, recurrence plots, and quantitative recurrence analysis indicate an intermittent route to chaos at a highly lean and diluted charge. The presence of deterministic chaotic characteristics in combustion dynamics, along with effort-saving techniques of data acquisition and estimating combustion phasing, depicts the possibilities of practical application in active onboard control of engine systems.

show abstract

Section: Introductionmentioning

confidence: 99%

Application of delay embedding and recurrence analysis to a noisy nonlinear map for cyclic combustion dynamics of SI engines

Singh

Maurya

2022

International Journal of Engine Research

Self Cite

View full text Add to dashboard Cite

show abstract

Impacts of EGR on RCCI engines management: A comprehensive review

Elkelawy

Shenawy

Mohamed

et al. 2022

Energy Conversion and Management: X

View full text Add to dashboard Cite

Study on combustion stability of a miniature reciprocating piston internal combustion engine

Zhi

Wang

et al. 2020

J. Micromech. Microeng.

View full text Add to dashboard Cite

The combustion of a micro-piston internal combustion engine with platinum wire glow ignition is diagnosed. The results show that the combustion starting point of the micro piston internal combustion engine varies greatly, and the combustion duration is various and long. The coefficient of variation of pmax is as high as 28.5%, the combustion stability is poor. Therefore, it is suggested to improve the thermal environment in the cylinder to improve the combustion stability. One method is to increase the temperature in the cylinder to reduce the duration and the cyclic variation of combustion. The other method is to increase the temperature of the platinum wire to improve the stability of the starting point of combustion and to reduce the cyclic variation of combustion. The test results show that with the increase in the cylinder body temperature, the distribution of combustion starting point is more concentrated, and the coefficient of variation of pmax decreases by about 38.6%. The stability of combustion increases. So the combustion stability can be improved by appropriately increasing the temperature of cylinder body. With the increase temperature of the platinum wire, the ignition and combustion will be facilitated and the combustion stability will be improved. At the same time, the movement of the gas near the platinum wire will be accelerated, which gives rise to affect the flame-kernel development and flame propagation. The ignition points will become scattered, which increases the instability of combustion.

show abstract

Combustion Stability Analysis

Cited by 7 publications

References 109 publications

Application of delay embedding and recurrence analysis to a noisy nonlinear map for cyclic combustion dynamics of SI engines

Application of delay embedding and recurrence analysis to a noisy nonlinear map for cyclic combustion dynamics of SI engines

Impacts of EGR on RCCI engines management: A comprehensive review

Study on combustion stability of a miniature reciprocating piston internal combustion engine

Contact Info

Product

Resources

About