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用4448.3N推力的水冷量热室对液氧/丙烷和液氧/乙醇推进剂进行了气流面传热速率特性试验.喷射器元件类型和燃料膜冷却效应是燃料混合比的函数.穿过谐振腔的喷射燃料对传热和燃烧壁积碳的相互作用是随燃烧时间、轴向距离、燃料冷却剂流率以及混合比而变化的.对乙醇的完全燃烧和丙烷燃烧后会积碳这两者的比较表明,这两种燃料有很大的差别.在喷管喉部区,乙醇燃料的热通量比预期的大得多.
The convective heat transfer rate characteristics of liquid oxygen / propane and liquid oxygen / ethanol propellants were tested using a 4448.3 N thrust water cooled thermal chamber. The ejector element type and fuel film cooling effect were a function of the fuel mixing ratio. The interaction of the injected fuel in the chamber with heat transfer and carbon deposition in the combustion chamber varies with the combustion time, the axial distance, the flow rate of the fuel coolant, and the mixing ratio. Both complete combustion of ethanol and carbon deposition after propane combustion The comparison shows that there is a big difference between the two fuels, where the heat flux of ethanol fuel is much larger than expected.