|
|
|
¡¡
|
| ¡¡ |
|
| ¡¡ |
|
As an irradiation test facility for nuclear fuel's
performance in HANARO, 3-Pin Fuel Test Loop(FTL) is being developed that can
irradiate the pin to the maximum number of 3 at the core irradiation hole(IR
hole) by considering for it's utility and user's irradiation requirement.
Nuclear fuel irradiation test in FTL at IR hole can get higher fast neutron
flux and linear heat rate than commercial nuclear power reactor can do, so that
will be able to satisfy the user's test requisite and be able to possible to
test in severe condition. 3-Pin FTL consists of In-Pile Test Section (IPS) and
Out-Pile System (OPS). IPS that is connected to the OPS are controlled and
regulated by means of system pressure, system temperature and the water quality.
IPS is designed duel stainless steel pressure vessel for safety and OPS is
composed of main cooling water system, emergency cooling water system,
instrument cooling water system, etc. 3-Pin FTL which contains system condition
like 120kW heat removing capability, design pressure 17.5MPa, design
temperature 350¡É and hydro-chemical
condition is normal steady state nuclear fuel irradiation test loop facilities.
Conceptual design of the 3-Pin FTL was set up in 2001 and basic design composing
a design requirement and basic piping & instrument diagram (P&ID) had completed
in 2002. As of 2003, safety analysis report to get a license from KINS is being
prepared and Mock-up test for verifying the IPS design is being promoted. After
3-Pin FTL development which is expected
to be finished by the 2006, 3-Pin FTL will be used for the irradiation test of
the new PWR-type fuel and can maximize the usage of HANARO and promote the
national prestige internationally in the nuclear field
Instrument
Character & Specification
| ¡¡ |
¤ýIrradiation test hole : HANARO core
irradiation hole(IR hole)
-
Thermal neutron flux : 1.2 X 1014n/§²·sec
- Fast neutron flux :
1.6 X 1014n/§²·sec
¤ýScale
& Performance
-
Operation
condition : Simulate commercial power reactor
operating condition
(high
temperature, high pressure and water chemistry)
- In-pile Test Section
: Contains maximum number of 3 fuel rods
- Out-pile System : Regular
output of power 120 kW
-
Design value : Design pressure-17.5MPa,
Design temperature-350¡É
|
|
¡¡
|
Design & Operation condition
|
Design &
Operation condition
|
PWR Mode
|
CANDU Mode
|
|
Design
condition
|
Temperature(IPS/OPS)
|
350 ¡É
|
350 ¡É
|
|
Pressure(IPS/OPS)
|
17.5 MPa
|
17.5 MPa
|
|
IPS
Maximum
operation
condition
|
Generated
heat
|
112.3 kW
|
116.2 kW
|
|
Outlet pressure
|
15.5 MPa
|
10.0 MPa
|
|
Inlet temperature
|
303.3 ¡É
|
276.7 ¡É
|
|
Outlet temperature
|
312.0 ¡É
|
290.0 ¡É
|
|
|
|
¡¡
|
¡¡
|
Safety concept
¡¡
|
|
¡¡
|
¡¡
|
| ¡¡ |
¤ýIn case of FTL accident remove the
Decay Heat by passively injected coolant
from
the emergency
cooling water tank
¤ýPerform the long
term cooling by means of passively injected
coolant
¤ýDual pressure vessel design
of IPS
¤ýMaintain the FTL room as a pressure
boundary for Pressure retention
|
|
|
¡¡
|
¡¡
|
Application
¡¡
|
|
¡¡
|
¡¡
|
| ¡¡ |
¤ýNuclear fuel irradiation behvior at
the commercial reactor operation condition
¤ýIrradiation
Data production : PWR fuel, CANDU fuel,
metal fuel
¤ýFuel rod clad irradiation
test
¤ýFuel rod irradiation test for
performance verification
|
|
¡¡
|
|
|
¡¡
|
FTL block diagram
|
|
|
¡¡
|
¡¡
|
Out-Pile System
¡¡
|
|
¡¡
|
¡¡
|
| ¡¡ |
- MCW(Main Cooling Water System)
-
ECW(Emergency Cooling Water System)
-
PCW(Penetration Cooling Water System)
-
LMP(Letdown, Makeup and Purification System)
-
WST(Waste Storage and Transport system)
-
TLS(Test Loop Sampling System)
- ICW(Intermediated
Cooling Water System)
- HCS(Hydrogen
Control System)
- RMS(Radiation Monitiring
System)
- EPS(Electrical Power System)
-
AIC(Associated Instrument and Controls)
|
|
¡¡
|
|
|
¡¡
|
|
NO.
|
Name of part
|
NO.
|
Name of part
|
|
¨ç |
Pressurizer
|
¨ï |
Letdown, Makeup
and
Purification heat exchanger
|
|
¨è |
Waste storage
tank
|
¨ð |
Degasifier
tank
|
|
¨é |
High pressure
injection tank
|
¨ñ |
Pump
|
|
¨ê |
Main cooler
|
¨ò |
Intermediate
cooler
|
|
¨ë |
Main cooling
water pump
|
¨ó |
Expansion
tank
|
|
¨ì |
Main heater
|
¨ô |
Ion heat exchanger
|
|
¨í |
Isolation
valve
|
¨õ |
Filter
|
|
¨î |
Letdown, Makeup
and
Purification cooler
|
|
H2/N2 gas
bombe
|
|
|
¡¡
|
|
|
|
¡¡
|
¡¡
|
|
|
