1. SAFETY AND SITTING ASSESSMENT FOR NPPs DEPLOYMENT IN INDONESIA
PANDE Made Udiyani,
S. KUNTJORO, R.S. GENI
Center for Nuclear Reactor Safety and Technology,
National Nuclear Energy Agency of Indonesia-BATAN
International Conference on Topical Issues in Nuclear Installation Safety: Safety Demonstration of Advanced Water Cooled NPPs,
IAEA-Vienna 6-9 June 2017

2. OUTLINES INTRODUCTION METHODOLOGY RESULT AND DISCUSSION CONCLUSION
11/27/2018

3. Introduction
Indonesia had shown that nuclear energy will be included as part of energy sources in energy mix policy.
Lesson leant from Fukushima accident, the safety of NPPs need to be highlighted to improve the public acceptance of nuclear safety and security in Indonesia.
To prove that the operation of a large NPPs in Bangka Belitung required analysis of radioactive release under normal conditions and postulation accident.
The paper will describe the assessment of safety and radiation consequences on site for normal operation and DBA postulation of PWR-1000 MWe.

4. Figure 1. Map of Indonesia
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5. Dose (Individual and Collective)
METHODOLOGY
Source term
Normal operation
DBA postulation
Plume Formation
Meteorological data
Dispersion
Deposition
Pathway:
external gamma and beta from cloud shine
external gamma from ground surface
inhalation of cloud shine
and ingestion of contaminated food
Dose (Individual and Collective)
Normal operation
DBA postulation- Countermeasure
Fig 2. Methodology approach of radiation dose calculation

6. Table 1. Reactor parameters for fission products inventory calculation (by ORIGEN 2)
Fuel assembly matrix : 17 x 17
Number of fuel assembly : 264 rods
Total mass of UO2 in fuels : 613, g
Fuel composition at enrichment of 2.35%:
U235 : 12, g ; U238 : 528, g ; O16: 72, g
Fuel composition at enrichment of 3.40%
U235: 18, g; U238 : 522,668 g, O16: 72, g
Fuel composition at enrichment of 4.45%
U235: 24, g; U238: 516, g: O16: 72, g
Electric power : 1000 MWe
Thermal power : 3100 MWth
Operation time : 18 to 24 months
Average fuel burnup : 50 GWd/tU

7. Chemical and Volume Control System (CVCS) Radionuclide inventory
Clean-Up Filter
(3)
(4)
Radionuclide inventory
Primary coolant
Steam Generator
(2)
(1)
(6)
Filter
Off Gas System
(5)
Stack
Containment
(7)
Fig 3. The calculation model for the normal operation source term
The release is assumed: FP from pinholes reached 0.1%.
Uranium contaminants in surface cladding can reach 10 microns uranium weight

8. ACCIDENT INITIATION ORIGEN The Core Inventory The failed fuel/core
The released of fission product to Primary Cooling System
ACCIDENT INITIATION
The release to the primary containment (dry and wet phases)
THE RELEASE TO THE ENVIRONMENT
CONSEQUENCES & COUNTERMEASURE
MELCOR
RELAP-SCADAP
ORIGEN
PC-COSYMA
Fig.4. The Assessment for Consequences and countermeasure for LB-LOCA of PWR-1000MWe

9. Fig 5. Release and transport of fission products for PWR-1000MWe
The assumption core damaged reaches approximately 33% which is the optimal damaged based on results of the study and an agreement for LB-LOCA accident
A Gaussian atmospheric dispersion code PC Cream and PC Cosyma were used to estimate the radiological doses of the released radionuclides.

10. 3. RESULT AND DISCUSSION
Fig 6. The FP activity of Core inventory, routine
and LB-LOCA sourceterm

11. FIG.7. Individual effective doses for normal operation
3. RESULT AND DISCUSSION
Fig 7a.West Bangka site
FIG.7. Individual effective doses for normal operation

12. FIG. 8. Individual effective doses for LB-LOCA
3. RESULT AND DISCUSSION
Fig.8a.West Bangka site
FIG. 8. Individual effective doses for LB-LOCA

13. 4. CONCLUSION
The estimated effective doses are lower than the dose constraint of 0.3 mSv/y associated with this plant (BAPETEN).
The highest individual effective dose for LBLOCA is 20.0 mSv in NW direction and 800m distance from stack.
For DBA: No evacuation countermeasure will be taken based on the regulation of emergency.
The assessment have proved that the construction of large NPPs in West Bangka safe and meets the safety standard for normal operation and the impact in DBA conditions.
This study used as supporting data for the dissemination of nuclear power plants in Indonesia.

14. Thank you fOr your attention!
International Conference on Topical Issues in Nuclear Installation Safety: Safety Demontration of Advanced Water Cooled NPPs,
IAEA-Vienna 6-9 June 2017