Approaches to Meeting Fluctuating Natural Gas Quality in Large Bore Engine Applications

Zelenka, Ján; Hoff, Claudio; Kirsten, Martin; Wimmer, Andreas

doi:10.1007/978-3-319-69760-4_2

Cited by 1 publication

(1 citation statement)

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“…Another series of studies are extending the working regions limited by knocking and misfiring in lean-burn engines, which are beneficial to enhance the transient performance. Jan et al [91] investigated the influence of total and local air-fuel ratios in the pre-chamber on the engine misfire boundary to address this issue when using high-inert-content flare gases as fuel. Other solutions for speeding up the burning rate and enhancing ignition behavior by pre-chamber jets also work for avoiding misfires [92].…”

Section: Advanced Methods To Enhance Transient Performancementioning

confidence: 99%

Transient Performance of Gas-Engine-Based Power System on Ships: An Overview of Modeling, Optimization, and Applications

Wu,

Li,

Chen

et al. 2023

JMSE

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Liquefied natural gas (LNG) is widely regarded as the midterm solution toward zero-carbon transportation at sea. However, further applications of gas engines are challenging due to their weak dynamic load performance. Therefore, the comprehension of and improvements in the dynamic performance of gas-engine-based power systems are necessary and urgent. A detailed review of research on mechanisms, modeling, and optimization is indispensable to summarize current studies and solutions. Developments in engine air-path systems and power system load control have been summarized and compared. Mechanism studies and modeling methods for engine dynamic performance were investigated and concluded considering the trade-off between precision and simulation cost. Beyond existing studies, this review provides insights into the challenges and potential pathways for future applications in decarbonization and energy diversification. For further utilization of clean fuels, like ammonia and hydrogen, the need for advanced air–fuel ratio control becomes apparent. These measures should be grounded in a deep understanding of current gas engines and the combustion characteristics of new fuels. Additionally, the inherent low inertia feature of electric power systems, and consequently the weak dynamic performance when adopting renewable energies, must be considered and studied to ensure system reliability and safety during transient conditions.

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Section: Advanced Methods To Enhance Transient Performancementioning

confidence: 99%