溶胶凝胶法制造UO<sub>2</sub>燃料微球的流体力学计算

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溶胶凝胶法制造UO₂燃料微球的流体力学计算

基金项目:

清华大学基础研究基金支助（JC2007042）

Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China, 10084

摘要: 利用伯努利方程建立了在外胶凝工艺中喷嘴射流速度与压力罐液面高度、喷嘴射流速度与液面压强的关系式,并使用该关系式进行计算,结果表明:管道中整个流动过程是层流;液面高度对射流速度的影响非常小;由液面高度所造成的UO₂微球直径的最大偏差远小于微球的控制偏差。
- 溶胶凝胶 /
- UO₂微球 /
- 流体力学计算 /
- 高温气冷堆
Abstract: Relation between the jet steam velocity in nozzle and height of glue solution level and rela-tion between the jet steam velocity in nozzle and the pressure of glue solution level in pressure kettle are es-tablished with Bernoulli equation. The result calculated from this relations shows that the flow of gelation solution is of laminar, the effect of the height of solution level on the the jet steam velocity in nozzle is little and the maximum error for diameter of micro global UO₂, resulting from the height of solution level, is far more less than the control error.
- Sol-gelation /
- Micro global UO₂ /
- Hydromechanics calculation /
- High temperature gas cooled reactor