为了获得低压模化对燃烧室燃烧特性的影响，提供燃气轮机燃烧室设计研发节约成本、缩短试验周期的可靠性方法，选用某型F 级燃气轮机轴向分级燃烧室，开展了低压模化试验研究。试验结果表明：压力对燃烧室总压损失系数分布和数值高低无明显影响。压力升高会降低燃烧室火焰筒壁面温度，却对出口温度分布无明显影响。此外，压力的升高会导致NO_x 和NO 排放的增高以及NO₂ 排放的降低；采用压力指数表征压力和NO_x 排放关系时发现，不同模化压力下的压力指数n 在0.264∼0.269内波动；随着压力的变化，CO 和未燃碳氢(UHC) 排放均维持在极低水平。

In order to obtain the impact of low pressure modeling on the combustion characteristics of the combustor, provide a reliable method for cost saving and shortening the test cycle in the design and development of gas turbine combustors, a certain type of F-class gas turbine axial staged combustor was selected and low pressure modeling experimental research was conducted. The experimental results show that pressure has no significant effect on the distribution and numerical value of the total pressure loss coefficient in the combustor. The increase of pressure will reduce the wall temperature of the combustor liner, but has no obvious effect on the outlet temperature distribution. In addition, an increase in pressure can lead to an increase in NO_x and NO emissions, as well as a decrease in NO₂ emissions; When using pressure exponent to characterize the relationship between pressure and NO_x emissions, it is found that the pressure exponent n fluctuates within the range of 0.264∼0.269 under different modeling pressures; As the pressure changes, both CO and unburned hydrocarbon (UHC) emissions remain at extremely low levels.