对斯特林发动机燃烧室氧-柴油无焰燃烧进行数值模拟。研究表明：氧-柴油无焰燃烧相比于传统氧-燃料燃烧需要卷吸更多的烟气来对纯氧进行稀释。直流燃烧室和旋流燃烧室内实现无焰燃烧的引射比分别为32和11.5，旋流燃烧室有助于无焰燃烧的实现。氧-柴油无焰燃烧的火焰峰值温度比传统燃烧模式低600 K左右，火焰峰值温度大幅下降。氧-燃料模式下燃烧室温度变化在20%以上，而氧-柴油无焰燃烧模式下温度变化小于15%，燃烧室温度均匀性显著提高。
The Stirling engine combustor with Flameless Oxy-diesel combustion was numerically simulated. The results show that Flameless oxy-diesel combustion compared to conventional Oxy-fuel combustion needs more flue gas to dilute the pure oxygen. Swirl combustor helps achieve flameless combustion,the ejection ratio of direct flow combustor and swirl combustor is 32 and 11.5, respectively. The peak temperature of Flameless oxy-fuel is decreased significantly, approximately 600 K lower than the the peak temperature of traditional combustion mode. The temperature uniformity of Stirling engine combustor was significantly increased by achieving Flameless combustion, the normalized spatial temperature variation is more than 20% for Oxy-fuel combustion and less than 15% for Flameless oxy-diesel combustion.
2016,38(10): 84-88,98 收稿日期：2016-7-12
DOI：10.3404/j.issn.1672-7619.2016.10.016
分类号：U664.1
基金项目：上海市青年科技启明星计划（B类）资助项目（16QB1402600）
作者简介：叶拥拥(1968-),男,高级工程师,从事船舶特种动力装置性能研究。
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