Development of a critical heat flux correlation based on an annular film dryout mechanistic model under the annular flow conditions

被引：0

作者：

Yodo, Tadakatsu ^{[1
]}

Odaira, Naoya ^{[2
]}

Ito, Daisuke ^{[2
]}

Ito, Kei ^{[2
]}

Saito, Yasushi ^{[2
]}

机构：

[1] Kyoto Univ, Grad Sch Energy Sci, Yoshida Hommachi,Sakyo Ku, Kyoto 6068501, Japan

[2] Kyoto Univ, Inst Integrated Radiat & Nucl Sci, Osaka, Japan

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2023年 / 60卷 / 10期

关键词：

Critical heat flux; mechanistic model-based correlation; CHF correlation; dryout mechanistic model; thermal hydraulic; safety analysis; PREDICTION; CHF; FRACTION; REGIME;

D O I：

10.1080/00223131.2023.2177761

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

This study proposes a mechanistic model-based correlation for the critical heat flux to meet the practical requirements for the design and safety analysis of light water reactors. The correlation is based on an annular film dryout mechanistic model for a single tube, which needs numerical integration from the onset of annular flow to the dryout point, expressed as an explicit non-dimensional equation to ensure a wide applicable range of coolant conditions. The correlation predicts a critical heat flux for the annular flow region in the pressure range of 1-16 MPa, the mass velocity range of 500-3000 kg/m(2)s, and the thermal equilibrium quality range of 0.05-0.7. The prediction by the developed correlation agrees well with that of the existing mechanistic model without any numerical integration of the annular flow conditions.

引用

下载

页码：1182 / 1193

页数：12

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