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This research investigates how different biodiesel feedstocks influence combustion dynamics and emissions in diesel engines under varying injection strategies.

March 21, 2026EnergiesOpen Access

Numerical Study on Combustion Dynamics and Emission Characteristics of Biodiesels Derived from Various Feedstocks Under Single and Pilot–Main Injection Strategies

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ZGZhefeng GuoUniversity of Illinois Urbana-Champaign YHYu HanBeijing Institute of Fashion Technology HJHuangchang JiUniversity of Illinois Urbana-Champaign

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Numerical study explores biodiesel emissions in diesel engines, indicating optimal injection strategies for efficiency.

Key Points

This research investigates how different biodiesel feedstocks influence combustion dynamics and emissions in diesel engines under varying injection strategies.
Numerical investigation of biodiesels from soybean oil, animal fat, and waste cooking oil.
Comparison of single injection and pilot–main injection strategies with varying pilot energy ratios.
Use of computational fluid dynamics (CFD) validated against experimental data.
Advancing injection timing enhances peak rates of heat release (AHRR) and mass fraction burned (MPRR).
Pilot–main injection reduces AHRR peak and advances combustion timing across biodiesels.
Optimal emissions correlate with mid-injection timing, showing trade-offs between NOx and soot.
Soybean oil achieves the best combination of efficiency and MPRR, while waste cooking oil shows lower NOx but suggests incomplete combustion.

Cite This Study

Guo et al. (2026) studied this question.

synapsesocial.com/papers/69be38ca6e48c4981c679774 https://doi.org/10.3390/en19061542

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Numerical Study on Combustion Dynamics and Emission Characteristics of Biodiesels Derived from Various Feedstocks Under Single and Pilot–Main Injection Strategies

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Cite This Study

Numerical Study on Combustion Dynamics and Emission Characteristics of Biodiesels Derived from Various Feedstocks Under Single and Pilot–Main Injection Strategies

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Cite This Study

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