ガスタービン燃焼器の燃焼性能に及ぼすシラン添加効果

抄録

Lean blow-off limit and ignitable limit were studied experimentally to understand the effect of silane addition on the combustion performance of the gas turbine combustor. The fuel employed was methane. Silane concentration was varied up to 5%. The results show that silane addition to methane extends both the lean blow-off limit and ignitable limit considerably, and that this effect is more remarkable in the region of higher air velocity. It is concluded that silane addition makes the flame stable and promotes combustion reaction in the wide range of fuel-air ratio. However, silicon dioxide produced by silane burning adheres to the inner side of the combustor and accumulates around the fuel injection holes.