Numerical Analysis of Thermal Stratification in Pool Type Le

发布时间：2020-12-06 16:34

　　Lead based reactor is considered to be the most promising reactor option for the generation Ⅳ reactor system.China LEAd-based Reactor（CLEAR）was selected as the reference reactor in CAS lead based reactor project,led by Institute of Nuclear Energy Safety Technology（INEST）,CAS.In the first stage,the China lead-based research reactor CLEAR-Ⅰ will be constructed.Lead-based reactor engineering validation facility CLEAR-S is a large scale integrated non-nuclear pool type facility which has been built ... 

【文章来源】：中国科学技术大学安徽省 211工程院校 985工程院校

【文章页数】：115 页

【学位级别】：博士

【文章目录】：
Abstract
Chapter 1: Introduction
    1.1 Generation IV Nuclear Energy System
    1.2 Lead Cooled Fast Reactor （LFR）
        1.2.1 Lead Cooled Fast Reactor Programs in World
        1.2.2 China Lead Based Reactor （CLEAR） Program
    1.3 Thermal Stratification
    1.4 Thermal Stratification Analysis of Heavy Liquid Metal Cooled Reactors
    1.5 Research objective
    1.6 Thesis Outline
Chapter 2: Numerical Model and Methods
    2.1 Physical Model of CLEAR-S
    2.2 Mesh Model of CLEAR-S
    2.3 Materials
    2.4 Numerical Model
        2.4.1 Governing Equations
        2.4.2 Cell Zone Conditions
        2.4.3 Boundary Conditions
        2.4.4 User Define Functions （UDF）
    2.5 Summary
Chapter 3: Calculation Model Simplification and Validation
    3.1 Mesh Convergence
    3.2 Turbulence Model Selection
    3.3 Porous Media Model Selection
        3.3.1 Heat Exchanger
        3.3.2 DHR
        3.3.3 Pressure Chamber
        3.3.4 Core Simulator
        3.3.5 Pump
    3.4 Comparison of simulation results with design parameters
    3.5 Summary
Chapter 4: Steady state thermal stratification analysis of CLEAR-S
    4.1 Introduction
    4.2 Steady State Solution at 100% mass flow rate
    4.3 Steady State Solution at 50% mass flow rate
    4.4 Steady State Solution at 25% mass flow rate
    4.5 Wall conduction effects on force and natural circulation
        4.5.1 Wall conduction effects on FC
        4.5.2 Wall conduction effects on natural circulation
    4.6 Summary
Chapter 5: Transient thermal stratification analysis of CLEAR-S
    5.1 Introduction
    5.2 Loss of flow transient from 100% mass flow rate
        5.2.1 Pump Coast down
        5.2.2 Variations at inlet and outlet temperatures of core, HX and DHR
        5.2.3 Thermal Stratification analysis of hot pool of CLEAR-S
        5.2.4 Thermal Stratification analysis of cold pool of CLEAR-S
    5.3 Loss of flow transient from 50% mass flow rate
        5.3.1 Thermal Stratification analysis of hot pool of CLEAR-S
        5.3.2 Thermal Stratification analysis of cold pool of CLEAR-S
    5.4 Loss of flow transient from 25% mass flow rate
        5.4.1 Thermal Stratification analysis of hot pool of CLEAR-S
        5.4.2 Thermal Stratification analysis of cold pool of CLEAR-S
    5.5 Summary
Chapter 6: Conclusion, Implications and Future Work
    6.1 Conclusion
    6.2 Implications and future work
References
Acknowledgement
List of Publications


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