STUDY ON THE PREDICTING MODEL OF ONSET OF NUCLEATE BOILING IN NATURAL CIRCULATION BASED ON UNASCERTAINED MATHEMATICS

被引：0

作者：

Zhang Ming ^{[1
]}

Zhou Tao ^{[1
]}

Liu Ping ^{[1
]}

Ran Ke ^{[1
]}

Sheng Cheng ^{[1
]}

Fu Tao ^{[1
]}

Xiao Zejun ^{[2
]}

机构：

[1] North China Elect Power Univ, Inst Nucl Thermal Hydraul Safety & Standardizat, Beijing 102206, Peoples R China

[2] Nucl Power Inst China, Natl key Lab Bubble Phys & Nat Circulat, Chengdu 610041, Peoples R China

来源：

PROCEEDINGS OF THE 18TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING 2010, VOL 4 PTS A AND B | 2011年

基金：

美国国家科学基金会;

关键词：

FLOW;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Subcooled boiling in natural circulation has great influences on the flow and heat transfer characteristics of the medium in primary circuit loop of pressurized water reactor. Onset of nucleate boiling (ONB) is a key point in boiling heat transfer. According to analyze the existing models of ONB, the main factors that affect ONB are found out. The effects of main factors and the location of ONB are analyzed based on Yang Ruichang model in natural circulation, and found a model to calculate the location of ONB in natural circulation. A mathematical model is created using unascertained mathematics and compared with other models. The conclusion illustrates that the predicting model can describe the physical phenomena of subcooled boiling efficiently, and depicts the relation of certainty and uncertainty of influencing factors preferably by unascertained mathematics, which has particular methods to handle incomplete information, unsteady and inaccuracy numerical value, and variation quantity. The model reveals the real circumstance more accurately and plays an important role in security evaluation in nuclear power plant.

引用

页码：465 / +

页数：3

共 21 条

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