Measurements of (1) burn-out, (2) circumferential film flow distribution, and (3) pressure drop in a 17 × 27.2 × 3500 mm concentric and eccentric annulus geometry are presented. The eccentric displacement was varied between 0 and 3 mm. The working fluid was water. Burn-out curves at 70 bar are presented for mass velocities between 500 and 1500 kg/m2s and for inlet subcoolings of 10°C and 100°C. The film flow measurements correspond to the steam qualities χ = 19 % and 24 % for the mass velocity G = 602 kg/m2s and χ = 20 % and 23 % for G = 1200 kg/m2s. The influence of the circumferential rod film flow variation on burn-out is discussed.
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机译:给出了在17×27.2×3500 mm同心和偏心环空几何形状中测量(1)燃尽,(2)圆周薄膜流动分布和(3)压降的测量结果。偏心位移在0到3 mm之间变化。工作流体是水。给出了在500 bar和1500 kg / m2s之间的质量速度以及在10°C和100°C的入口过冷情况下在70 bar下的燃尽曲线。膜流量测量值对应于质量速度G = 602 kg / m2s的蒸汽质量χ= 19%和24%,而对于G = 1200 kg / m2s的蒸汽质量对应于χ= 20%和23%。讨论了周向棒膜流量变化对燃尽的影响。
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