Abstract Integrated Gasification Combined Cycle is a technology which has been studied widely as a future clean energy system. As one important portion of it, syngas premixed combustion is crucial due to its immediate impact on the efficiency and emission. However, its control is challenging since turbulent combustion in the chamber is extremely complex due to the composition variability and structural complexity of the combustion devices. Deep study on the laminar premixed combustion of syngas is of great importance for revealing the real complex turbulent combustion process. In the present paper, recent progress in fundamental research on laminar spherically premixed flame propagations of syngas, including laminar flame speed, Markstein length, flame stretch, cellular flame structure and self-acceleration are presented. Detailed summaries and discussions for different stages of the flame propagation are given. In particular, laminar flame speed and wrinkled flame front due to intrinsic flame instability are emphasized. Furthermore, future prospects on laminar spherically premixed flame propagation of syngas mixtures are discussed.

中文翻译：

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合成气层流球形预混火焰传播综合综述

摘要 综合气化联合循环作为未来清洁能源系统而被广泛研究的技术。作为其中的一个重要部分，合成气预混燃烧对效率和排放产生直接影响，因此至关重要。然而，由于燃烧装置的成分可变性和结构复杂性，燃烧室内的湍流燃烧极其复杂，因此其控制具有挑战性。深入研究合成气层流预混燃烧对于揭示真实复杂的湍流燃烧过程具有重要意义。在本文中，介绍了合成气层流球形预混火焰传播基础研究的最新进展，包括层流火焰速度、Markstein 长度、火焰拉伸、蜂窝火焰结构和自加速。给出了火焰传播不同阶段的详细总结和讨论。特别强调了由于固有的火焰不稳定性导致的层流火焰速度和褶皱火焰前沿。此外，还讨论了合成气混合物层流球形预混火焰传播的未来前景。