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Introduction
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With the various applications of the
research reactor, new control technologies
and relevant facilities become more important
especially for the advanced fuels and materials
development related to a next generation
reactor and the extension of the life time of
the current nuclear power reactors. Three
types of control system are regularly considered
in the HANARO capsule irradiation tests:
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- System for control and monitoring of
the irradiation temperature and He gas pressure
during irradiation tests
using a material instrumented capsule
- Control
system for the control of the test fuel temperature,
monitoring of the temperature
and elongation
of the test fuel, internal pressure of the test
fuel rod, and monitoring of the
failure of the test
fuel rod
- Control system for the control
and monitoring of the stress, temperature, and displacement
during irradiation creep tests
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Design Features
[Material
capsule control system] |
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- Control and monitoring of the irradiation
temperature and He gas pressure during irradiation
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Construction : vacuum control (10∼760 torr
He), heater control (0∼3.5 kW), data
aquisition and analysis system
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In-situ remote control of the irradiation condition
and the measurement of the data during
irradiation
test
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[Fuel
capsule control system] |
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- Temperature control of
the test fuel rods, monitoring of
the temperature, pressure, and
elongation
of the test fuel rod, and the failure
monitoring of the test fuel rods
during the
fuel irradiation test
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Operation of a manual and automatic
mode including a vacuum control,
mixed
gas(He/Ne)
supply, a radioactivity monitor
and a control
- In-situ monitoring
and control of the irradiation
characteristics and a database
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[Creep
capsule control system]
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- Construction : vacuum control,
heater control, stress control,
and displacement monitoring
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Operation : auto/manual
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In-situ measurement and analysis
of the stress-displacement data
during an irradiation
test
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Application
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- Use for the materials and fuel irradiation
tests using an instrumented capsule
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Production of the irradiation data for nuclear
material and fuels
- Key technological
advances in the design, realization, and
operation of the control
systems.
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Status and plan
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- Three types of control systems are installed
in HANARO and are available for material
and fuel irradiation tests
using an instrumented capsule
- Advanced
fuel capsule control systems have been under development
to support the users
programs
since 2001
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