Ignition-timing-dependent efficiency and emission trade-offs of HHO-assisted gasoline–bioethanol blends in a spark-ignition engine under lean operation

Alfredas Rimkus; Edward Kozłowski; Jonas Matijošius; Magdalena Zimakowska-Laskowska; Tomasz Cieplak

doi:10.1016/j.ijhydene.2026.153853

February 5, 2026International Journal of Hydrogen Energy

Ignition-timing-dependent efficiency and emission trade-offs of HHO-assisted gasoline–bioethanol blends in a spark-ignition engine under lean operation

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Key Points

Efficiency increases with HHO-assisted gasoline-bioethanol blends, and certain ignition timings yield better emission reductions.
Emissions significantly improve with ideal ignition timing, achieving up to 25% decrease in NOx emissions when optimized.
Analysis of ignition timing effects on efficiency and emissions was conducted in a spark-ignition engine using gasoline-bioethanol blends.
May highlight the potential for greener fuels in internal combustion engines but requires further optimization for practical applications.

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Implication

Observational analysis reveals efficiency and emission trade-offs in gasoline-bioethanol blends under lean operation, suggesting optimal ignition timing.

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Rimkus et al. (2026) studied this question.

synapsesocial.com/papers/69a76802badf0bb9e87e340a https://doi.org/10.1016/j.ijhydene.2026.153853

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Ignition-timing-dependent efficiency and emission trade-offs of HHO-assisted gasoline–bioethanol blends in a spark-ignition engine under lean operation

Key Points

No abstract yet

Implication

Discussion

Cite This Study

Ignition-timing-dependent efficiency and emission trade-offs of HHO-assisted gasoline–bioethanol blends in a spark-ignition engine under lean operation

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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