大尺度矩形回路单相自然环流的实验与数值模拟研究

IF 0.6 Q4 NUCLEAR SCIENCE & TECHNOLOGY

Atom Indonesia Pub Date : 2019-04-16 DOI:10.17146/AIJ.2019.762

A. R. Antariksawan, S. Widodo, M. Juarsa, S. Ismarwanti, D. Saptoadi, M. Kusuma, T. Ardiyati, T. Mahlia

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引用次数: 2

摘要

为了预测电站停电，在先进的核电站设计中，特别是在福岛第一核电站事故之后，高度考虑使用基于无源特性的安全系统。自然循环在应急冷却系统中的应用就是一个例子。为了研究这种应用的可靠性，开展了一个关于自然循环的研究项目。本文介绍了用FASSIP-01大型矩形实验回路对自然循环现象的研究结果。实验是在两种不同的热源功率下进行的。利用现有的相关性和数值模型模拟对实验结果进行了分析。RELAP5系统代码用于对自然循环进行建模。FLUENT计算流体动力学代码用于可视化流量分布。实验结果表明，在质量流量约为0.0012kg/s的所有热功率输入下，建立了稳定的自然循环。使用现有相关性的计算表明，实验雷诺数低于相关性预测的雷诺数。基于计算流体力学的工具可以显示温度的三维分布，而RELAP5模型可以很好地预测实验回路中建立的单相自然循环的动态。结果表明，在大矩形环中已经建立了稳定的自然循环，RELAP5模型可以很好地模拟观测到的自然循环现象。/*样式定义*/表。MsoNormalTable｛mso style name:“Table Normal”；mso tstyle rowband size:0；mso ts style colband size:0；mso style-noshow:yes；mso style=priority:99；mso样式qformat:yes；mso-style parent:“”；mso-padding alt:0cm 5.4pt 0cm 5.4pt；mso-para margin:0cm；mso-parra margin-bottom:00001pt；mso分页：寡妇孤儿；font-size:11.0pt；font-family:“Calibri”，“sans-serif”；mso-ascii font-family:宋体；mso-ascii主题字体：小拉丁文；mso-fareast字体家族：“Times New Roman”；mso-fareast主题字体：minor fareast；mso-hansi font-family:宋体；mso-hansi主题字体：小拉丁文；mso-bidi字体家族：“Times New Roman”；mso-bidi主题字体：minor bidi；｝

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Experimental and Numerical Simulation Investigation of Single-Phase Natural Circulation in a Large Scale Rectangular Loop

In order to anticipate station blackout, the use of safety system based on passive features is highly considered in advanced nuclear power plant designs, especially after the Fukushima Dai-ichi nuclear power station accident. An example is the application of natural circulation in the emergency cooling system. To study the reliability of such an application, a research project on natural circulation was carried out. This paper describes the investigation results on the natural circulation phenomena obtained using a large rectangular experimental loop named FASSIP-01. The experiments were conducted at two different heat source powers. The experimental results are analysed using existing correlation and numerical model simulation. The RELAP5 system code is applied to model the natural circulation. FLUENT computational fluid dynamic code is used to visualize the flow distribution. The experimental results show the establishment of stable natural circulation in all heat power input with the mass flow rate of about 0.0012 kg/s. Calculation using the existing correlation shows that the experimental Reynold numbers are lower than predicted by the correlation. The computational fluid dynamics-based tool could show the three dimensional distribution of the temperature, while the model of RELAP5 predict well the dynamic of the single-phase natural circulation established in the experimental loop. It is concluded that the stable natural circulation have been established in the large rectangular loop and the model of the RELAP5 could simulate the observed natural circulation phenomenon reasonably well. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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来源期刊

Atom Indonesia NUCLEAR SCIENCE & TECHNOLOGY-

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： The focus of Atom Indonesia is research and development in nuclear science and technology. The scope of this journal covers experimental and analytical research in nuclear science and technology. The topics include nuclear physics, reactor physics, radioactive waste, fuel element, radioisotopes, radiopharmacy, radiation, and neutron scattering, as well as their utilization in agriculture, industry, health, environment, energy, material science and technology, and related fields.