WZ-5燃烧半水煤气并注水蒸汽的试验

提供了常压下 ,在 WZ- 5燃烧试验台上 ,采用中热值半水煤气为燃料的 ,向燃烧室喷注水蒸汽的各种方案的试验研究。研究了烧中热值燃料的燃烧性能以及在燃烧室中注入水蒸汽增加工质及增大燃气比热 ,在燃烧室高温区中注入水蒸汽 ,降低温度抑制 NOx 的生成。

PRELIMINARY RESEARCH OF STEAM INJEETION FOR WZ-5 AEROENGINE COMBUSTOR

The experimental investigation has been carried out at atomospheric testing rig to determine the effect of steam injection on combustion performance.The combustor used in the experiment was a modified WZ 5 annular combustor in which two steam injection sets were installed in the front and rear parts respectively.The tested fuel was gaseous fuel with medium heating value.The results show that steam injection had no impact on combustion efficiency and exit temperature pattern when the mass injection ratio (steam mass flow rate/air flow rate) is less than 5%.The exit temperature pattern factor increases and exceeds the acceptable value 0 25 to 0 30,as the steam mass injection ratio increases to about 10%.In addition,the test results also show that the process of the front part injection must be conducted smoothly,otherwise extinction of burning would occur.