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首页> 外文会议>Proceedings of the ASME power conference 2009 >SMALL SIZE TURBO-MACHINES FOR HTR PLANTS
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SMALL SIZE TURBO-MACHINES FOR HTR PLANTS

机译：HTR植物的小型涡轮机

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This paper investigated the effects of working fluid, turbine inlet temperature and shaft rotation speed on the size, number of stages and performance of turbo-machines for high temperature reactor (HTR) plants with indirect Closed Brayton Cycles (CBCs). Working fluids considered are He and 15 g/mole He-Xe and He-N_2 binary mixtures. Analysis increased the shaft speed from 3000 to 9000 rpm and the turbine inlet temperature from 923 K to 1173 K. The number of compression and turbine stages for He-Xe and He-N_2 are significantly lower than for He. Increasing the shaft speed from 3000 to 5400 rpm decreases the number of compression stages for He by ~ 44% to 47%, by ~ 40% to 46% for He-N_2 and ~ 40% to 43% for He-Xe over the range of inlet turbine temperatures considered. For He, the number of turbine stages decreases by ~ 22% to 30%, but those for He-Xe and He-N_2 turbines either stay the same or decrease by one or two stages. For a shaft speed of 3000 rpm and turbine inlet temperature of 923 K, the number of compression and turbine stages for He are 27 and 9, while those for He-Xe are 7 and 2 stages, respectively. Increasing the turbine inlet temperature to 1173 K increases the number of compression stages for He-Xe to 10 (compared to 34 for He) and the number of turbine stages to 4 (compared to 13 for He). Even though He-Xe and He-N_2 have the same molecular weight, the latter requires more compression and turbine stages, though still considerably less than for He.
机译：本文研究了工作流体，涡轮进口温度和轴转速对具有间接闭合布雷顿循环（CBC）的高温反应堆（HTR）装置的涡轮机尺寸，级数和涡轮机性能的影响。所考虑的工作流体为He和15 g / mole的He-Xe和He-N_2二元混合物。分析将轴转速从3000提高到9000 rpm，并将涡轮进口温度从923 K增加到1173K。He-Xe和He-N_2的压缩级和涡轮级数显着低于He。在此范围内，将轴速从3000 rpm增加到5400 rpm，He的压缩级数减少约44％至47％，He-N_2减少约40％至46％，He-Xe减少约40％至43％考虑的入口涡轮温度。对于He，涡轮机级数减少了约22％至30％，但是对于He-Xe和He-N_2涡轮机，涡轮机级数保持不变或减少了一级或两级。对于3000 rpm的轴转速和923 K的涡轮进口温度，He的压缩级数和涡轮级数分别为27和9，而He-Xe的级数分别为7和2级。将涡轮机入口温度提高到1173 K，将He-Xe的压缩级数增加到10（对于He，则为34），并将涡轮机级数增加到4（对于He，则为13）。即使He-Xe和He-N_2具有相同的分子量，后者也需要更多的压缩和涡轮级，尽管仍然比He少得多。

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