随着高含量氢气合成气及扩散火焰燃烧技术在燃气轮机工业应用的发展，氢气燃烧室技术研究越来越多。针对新型氢氧燃机热力循环系统，设计单筒形氢氧燃烧室，通过CFD（计算流体力学）对其内燃烧、流动及温度场分布特点进行对比研究，优化其结构及运行参数。结果表明：平面旋流器角度为45°时，燃烧室内流场及温度场达到最佳状态；采用循环水冷的对流换热系数为2 000 W/(m2·K）时，燃烧室壁面的最高温度均在750 K以下；当入射掺混速度vj达到60 m/s时，燃烧室出口温度场径向不均匀度平均值RTDF≈9.0%，最大不均匀度OTDF≈23.6%，可满足运行要求。

Due to the developments of gas turbines fed by the syngas with high content of hydrogen and of the technology of diffusion flame combustion,more and more researches on hydrogenfuelled combustors have been carried out.Based on a new type of thermodynamic cycle system with hydrogen gas turbine,a single cylinder H2-O2 combustion chamber was designed.The structure and operation parameters were optimized by comparing the combustion,flow and temperature field distribution characteristics by CFD simulation.The results showed that the flow field and temperature field in the combustion chamber reach the best state when the planar swirl angle is 45°.With the convective heat transfer coefficient of circulating water of 2 000 W/(m2· K),the highest temperature of the combustion chamber wall is below 750 K.When the mixing speed vj reaches 60 m/s,the average RTDF≈9.0%,and the maximum OTDF≈23.6%,which can meet the operation requirement.

TM611

国家自然科学基金（51467020）