Effect of Falling Film Evaporation on the Heat Removal in Passive Containment Cooling System(PCCS)Using ANSYS FLUNT

摘要

AP1000核电厂非能动安全壳冷却系统(PCS)是一个重要的非能动安全系统。PCS用于在失水事故(LOCA)和主蒸汽管道破裂(MSLB)等事故工况下从反应堆安全壳中去除热量。下降液膜蒸发在从安全壳中去除衰变热方面已经表现出良好的性能。本文采用计算流体动力学(CFD)研究这种现象，应用ANSYS FLUENT中的欧拉壁膜模型研究降膜蒸发。通过模型计算钢制容器与液膜之间的传热，实现关于安全壳热量的去除，同时解释了钢制安全壳壁面的热通量。

目录

声明

摘要

Abstract

Table of Contents

Chapter 1 Introduction

1．1 Significance of filing film Heat Transfer Analysis

1．2 Research Motivations

1．3 Literature Review

1．4 Background

1．5 Research Ob jectives

1．7 Thesis Outline

Chapter 2 Theory

2．1 Passive Containment Cooling System Model

2．1．1 Film Evaporation Model

2．1．2 Film condensation model

2．2 Turbulent Model

2．3 CFD Simulation Mathematical Model

3．1 The Model

3．2 Fluent Meshing

3．3 Computational mesh

3．3 Fluent Setup

3．3．1 Realizable k-ε(RKE) model

3．3．2 Enhanced Wall Treatment Option

3．3．3 Eulerian Wall Film(EWF)model

Chapter 4 Results and discation

4．1 Results Discussion

Chapter 5 Conclusions and Future Works

5．1 Conclusions

5．2 Future Work

References

Acknowledgement