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首页> 外文期刊>Heat Transfer Engineering >Thermal-Hydraulic Performance Analysis and Tube Inlet Orifice Design of a Once-Through Steam Generator
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Thermal-Hydraulic Performance Analysis and Tube Inlet Orifice Design of a Once-Through Steam Generator

机译：直通式蒸汽发生器的热力水力性能分析和管入口孔口设计

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摘要

A numerical study is conducted for a thermal-hydraulic performance analysis and secondary side screw-type tube inlet orifice design of a once-through steam generator. Various tubeplugging conditions and power levels are considered, and the secondary coolant flow rate is adjusted to maintain a constant level of thermal power. Comprehensive numerical solutions are acquired to evaluate the thermal-hydraulic performance and minimum orifice length of the once-through steam generator under various operating conditions. The results obtained show that constant thermal power can be maintained by properly adjusting the secondary coolant flow rate with variation of the steam outlet superheat degree and secondary coolant pressure drop when the once-through steam generator operates at a high power level. The secondary coolant flow rate curve for constant thermal power operation is determined, and the required minimum orifice length to suppress the flow oscillation below the allowable level is evaluated. The lowest power level results in the highest minimum orifice length, and the non-plugged condition practically limits the orifice length criterion. This orifice length and corresponding pumping power are compared with those when the secondary coolant pressure at the tube outlet is controlled for constant thermal power operation.
机译：对直通式蒸汽发生器的热工水力性能分析和二次侧螺旋式管入口孔口设计进行了数值研究。考虑各种卡套管堵塞条件和功率水平，并调整二次冷却液流速以保持恒定的热功率水平。通过综合数值解来评估直通式蒸汽发生器在各种工况下的热力水力性能和最小孔板长度。结果表明，当直通式蒸汽发生器在高功率水平下工作时，随着蒸汽出口过热度和二次冷却剂压降的变化，适当调节二次冷却液流量可以保持恒定的热功率。确定了恒定热功率运行的二次冷却液流速曲线，并评估了将流量振荡抑制到允许水平以下所需的最小孔口长度。最低功率水平导致最高的最小孔口长度，而非堵塞条件实际上限制了孔板长度标准。将该孔口长度和相应的泵送功率与控制管出口处的二次冷却剂压力以实现恒定热功率运行时的孔口长度和相应的泵送功率进行比较。

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  • 来源
    《Heat Transfer Engineering》 |2022年第5期|198-207|共10页
  • 作者

    Hun Sik Han; Young In Kim; Youngmin BaeSang Ji Kim;

  • 作者单位

    Smart Technology Development Division, Korea Atomic Energy Research Institute;

    Multi-p NSSS Technology Development Division, Korea Atomic Energy Research Institute;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类 工业用热工设备;
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