Nuclear Reactor Experiment
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Nuclear Reactor Experiment. RHRS Analysis Group E 2003. 6.14. About Members…. 97409-005 Kwon Tae-yung 97409-012 Nam Jeong-woo 97409-019 Song Ku-kwon 97409-029 Lee Jeon-kyu 97409-044 Han Man-ghil 97409-045 Han Hyun-sun. Introduction. What to do…? 1. RHRS Accident Analysis

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Nuclear Reactor Experiment

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Nuclear reactor experiment

Nuclear Reactor Experiment

RHRS Analysis

Group E

2003. 6.14


About members

About Members…

97409-005 Kwon Tae-yung

97409-012 Nam Jeong-woo

97409-019 Song Ku-kwon

97409-029 Lee Jeon-kyu

97409-044 Han Man-ghil

97409-045 Han Hyun-sun


Nuclear reactor experiment

Introduction

  • What to do…?

  • 1. RHRS Accident Analysis

  • 2. Derive a Conclusion from given data

  • How to do…?

  • 1. Mal functioned CNS

  • 2. Compare Mal functioned data with the Stable state


Nuclear reactor experiment

RHRS

- Residual Heat Removal System

  • : functions to remove heat from the core and reactor coolant system during plant cool down and refueling operations


Nuclear reactor experiment

RHRS

- Residual Heat Removal System

  • - supplies initial reactor coolant system circulation and purification during a plant startup

  • - serves as part of the Emergency Core Cooling System (ECCS)


Nuclear reactor experiment

System Drawing


Nuclear reactor experiment

System Drawing


Nuclear reactor experiment

The points that we concerned .

▶ What is the role of RHRS in 100% power ?

▶ How we can know the role of RHRS ?


Nuclear reactor experiment

Mal function .


Nuclear reactor experiment

Variables .


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Analysis .

▶ Plot the data

▶Compare each other

ETC .

▶ Running time : 1500 sec


Nuclear reactor experiment

Malfunction


Nuclear reactor experiment

Reactor vessel water level [m]

Time(s)


Nuclear reactor experiment

Loop 1,2,3 average Temperature(mean value)

Time(s)


Nuclear reactor experiment

Pressurizer pressure

Time(s)


Nuclear reactor experiment

PRZ water level[m]

Time(s)


Nuclear reactor experiment

Malfunction(Complex case)


Nuclear reactor experiment

Pressurizer water level

[m]

Time(s)


Nuclear reactor experiment

Vessel water level

[m]

Time(s)


Nuclear reactor experiment

Loop 1,2,3 average Temperature(mean value)

[ºC]

Time(s)


Nuclear reactor experiment

Analysis

▶ Does complex mal function affect the other system?

▶ Is these data reliable?


Nuclear reactor experiment

Discussion

Conclusion

▶RHR system is outside of containment

▶Although abnormal RHRS state is happened, the containment condition does not change.

▶The small derivation was due to the unstability of CNS code.


Nuclear reactor experiment

Discussion

Another situation

▶ If the reactor is in the state of ECC…


Nuclear reactor experiment

Discussion

Another situation

▶ If the reactor is in the state of refueling…


Nuclear reactor experiment

The End

Thanks for listening


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