Sang-Won Cho* : Ph.D. Candidate, KAIST Hyung-Jo Jung : Research Assistant Professor, KAIST
1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.
-
Upload
sophia-fowler -
Category
Documents
-
view
219 -
download
1
Transcript of 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.
![Page 1: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/1.jpg)
1
Hee cheon NO
Nuclear System/Hydrogen Lab.
KAIST
Chapter1: Nuclear Reactor Heat Transport System
![Page 2: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/2.jpg)
2
Contents
Chapter 1 Nuclear reactor heat transport sys-
tem
1.1 Nuclear fuel
1.2 Reactor vessel
1.3 Reactor core and fuel assembly
1.4 Rod cluster control assembly
![Page 4: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/4.jpg)
4
Pellet hourglassing and Pellet-Cladding Mechanical In-teraction(PCMI)
1.1 Nuclear fuel
dish/cham-fer
![Page 7: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/7.jpg)
7
Intergranular SCC
1.1 Nuclear fuel: Intergranular SCC
![Page 8: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/8.jpg)
8
Transient cladding ballooning: LOCA
1.1 Nuclear fuel: Cladding Ballooning & rup-ture
stress
strain
ulti-mate tensile stress
![Page 9: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/9.jpg)
9
1.1 Nuclear fuel: Cladding rupture
Post-CHF operation: Non-LOCA
Reactivity-Ini-tiated Acci-dent(RIA)
![Page 11: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/11.jpg)
11
APR1400
Typical 4 loop Rx ves-sel
1.2 Reactor vesselRCB: Rx Containment Building; TGB: Turbine/Generator Building; AB: Auxiliary Building; CB: Compound Building
NSSS
upper core plate
Lower plenum
Upper head
Upper plenum
![Page 13: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/13.jpg)
13
1.2 Reactor vesselEstimation of core mass flow rate:
( ) ( ) ,
(1 )
( ) sec
( );
p p hot cold RCP primary losss feedwater steam feedwater p
p core bypss core p bypass
SG feedwater steam feedwater
Rx p p hot cold c
m c T T Q Q m h h m
m m m m m F
where
Q m h h ondary calorimetric
Q m c T T Q
( )
/
ore core p hot cold
bypass bypss p
m c T T
F bypass flow fraction m m
Flow paths APR1400 설계값
Vessel flow rate 20,991.2 kg/secGuide tube 154.9 kg/secCore shroud annulus 84.2 kg/secOutlet nozzle gap 288.9 kg/secAlignment key 101.9 kg/secAPR Bypass overall 629.9 kg/sec
3.0%UK EPR:
5.5%
![Page 15: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/15.jpg)
15
1.2 Reactor vessel: irradiation specimen (Nil-ductility transition T)
![Page 16: 1 Hee cheon NO Nuclear System/Hydrogen Lab. KAIST Chapter1: Nuclear Reactor Heat Transport System.](https://reader036.fdocuments.us/reader036/viewer/2022081514/56649cbb5503460f94983032/html5/thumbnails/16.jpg)
16
Typical 4-Loop core1.3 Reactor core and fuel assembly
APR
cladding volume(m^3)
3.72 Zr mass in fuel(Kg) Zr mass in struc(kg)
Zr total mass(kg) 29647 24197 5450