technology overview and gda update - horizon nuclear · pdf filetechnology overview and . gda...
TRANSCRIPT
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Shunsuke Utena General Manager
Europe Nuclear Energy Development Division Hitachi, Ltd.
Technology Overview and GDA Update
May 21st and 23rd, 2013
Horizon Supply Chain Events
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Horizon Supply Chain Events
Technology Overview and GDA Update
1. Technical feature of ABWR
Contents
2. Fukushima Lessons Learned 3. GDA Update 4. ABWR Introduction Video
5. Unique Construction Technologies
6. Conclusion
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Horizon Supply Chain Events
Technology Overview and GDA Update
1. Technical feature of ABWR
Contents
2. Fukushima Lessons Learned 3. GDA Update 4. ABWR Introduction Video
5. Unique Construction Technologies
6. Conclusion
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
1-1. What’s Nuclear Power Generation?
3
Reactor
Boiler
Steam
Steam
Water
Water
Turbine
Condenser
Water Pump
Water Pump
Combustion (Oil, Coal, Gas, etc.)
Nuclear reaction generates heat.
Generator
Grid
To Discharge Canal Cooling Water
Thermal
Nuclear
Electricity generated by a steam driven turbine
Source: Japan Atomic Energy Relations Organization Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
1-2. What is BWR?
4
Q: What does “BWR” stand for?
Boiling
Water
Reactor
Answer: B :
W:
R :
What is the merit of boiling water “in” the Reactor?
Quiz 1
Reactor
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence 5
BWR PWR
Suppression Pool
Feed water Pump Circ. Water Pump
Condenser
Turbine Generator
Wat
er
Fuel
Control Rod (CR)
Feed water Pump Circ. Water Pump
Condenser
Turbine Generator
Wat
er
Fuel
Control Rod
Pressurizer
Dem
iner
aliz
er
Dem
iner
aliz
er
Rec
ircul
atio
n P
ump
Steam is generated in BWR Reactor
Reactor
Steam Generators
Steam Steam
Merits of boiling water in the Reactor are … Compact PCV; No Steam Generators Simple Configuration; Direct cycle (only 1 loop) Easy Control; Void Effect can be used for Power Control
Reactor
PCV PCV
PCV: Primary Containment Vessel
1 loop 2 loops
1-3. What is BWR?
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence 6
We want BWR plant to be …
• Extremely safe
• Cost-competitive
How can we improve the BWR to achieve those?
1. Simpler Configuration Reduce risk ⇒Extremely safe Reduce material Shorten construction period ⇒Cost-competitive
2. Enhancing output power ⇒ Cost-competitive
1-4. Evolution of BWR
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
1-5. BWRs around the World
7
Vallecitos – USA
Dresden 1 – USA
Laguna Verde - Mexico
Tarapur 1&2 – India
Dodewaard - Netherlands KKM - Switzerland
Garigliano - Italy
Santa María de Garoña - Spain Lungmen - Taiwan
K6/K7 - Japan
KRB - Germany
Source: GE-Hitachi Nuclear Energy International
…94 BWRs generating over 80 TW
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
1-6. ABWR: Only Operating Gen III+ Reactor
8 Source: NEA “Nuclear Energy Outlook 2008”
Evolutionary BWR technology since late 60’s
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
ABWR Key Features
Reactor Internal Pump (RIP)
Advanced Human-Machine System
Avoidance of large-size pipe breaking accident potential by adopting RIP
3-system multiplex ECCS
Optimum power control by FMCRD/RIP Intelligent Human-machine Interface
Reducing Station Service Power by adopting RIP
Long Blade Turbine, MSR for High Generation Efficiency
Downsizing Building Volume by adopting RCCV
FMCRD(Electrical and Water Driving)
Digital Instrument and Control System
Safety Improvement
Operational Performance Improvement
Economic Improvement
Reliability Improvement
Reinforced Concrete Containment Vessel
(RCCV)
52” Last Stage Turbine Blade
Moisture Separator Reheater (MSR)
Reactor Pressure Vessel (RPV)
Hitachi GE manufactures major components internally.
Fine Motion Control Rod
Drive (FMCRD)
1-7.
9 Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
1-8. Manufacturing Key components
Reactor Pressure Vessel
Core Shroud
Steam Dryer
Moisture Separator
● Fabrication by newest technology and skilled workers
Control Rod Driving Mechanism
Fuel Assembly
Control Rod
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
◆Equipment :1200-1600 unit ◆ Piping Total Length :100-120Km ◆ Starting Design to COD :9-10years Licensing / Design :4-5 years Construction :4-5 years
Reactor Building ABWR
Turbine Operation Floor
1-9. Engineering with Plant Integrated CAE System
11 Turbine Operation Floor
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Computer modeling Site View Simulation Construction Management with 4D simulation
Detail Design
Basic Design
Production Design &
Manufacturing
Construction Operation & Maintenance
Plant Engineering Database EPC Project Experience / Project Management Know-how
1-10. Engineering with Plant Integrated CAE System
12 Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Horizon Supply Chain Events
Technology Overview and GDA Update
1. Technical feature of ABWR
Contents
2. Fukushima Lessons Learned 3. GDA Update 4. ABWR Introduction Video
5. Unique Construction Technologies
6. Conclusion
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
2-1. BWR Performance during the Great East Japan Earthquake
14
All the BWRs other than Fukushima Daiichi (Units 1-4) safely under cold shutdown after the earthquake A key distinction … off-site power was maintained to keep the cores cool and prevent core damage at other NPPs
P
B
A
A
BWRs
ABWRs
ABWRs under construction
PWRs Power stations impacted by the earthquake
Fukushima I
Hamaoka
Ikata
Tokai
Sendai
Genkai
Shimane
Fukushima II
Onagawa
Tomari
Kashiwazaki/Kariwa
Shika
Takahama
Ohi
Mihama
Tsuruga
B B B B B A A
B B B B B B
B B B B
B B B
B B A
B A
B B A
P P P P
P P P P
P P P P
P P P
P P P
P P P
P P
B P
B
Ohma A
X Epicenter
Area affected by the earthquake
A
B
Higashidoori (TEPCO) Higashidoori (Tohoku)
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence 15
2-2. Fukushima Accident: Sequence of Events
Earthquake 9.0 Mw (moment magnitude) 4th largest in the world on record
Auto-shutdown
Operating reactors shutdown by control rods as designed Loss of off-site power due to the earthquake Emergency diesel generators (EDG) start
Tsunami flooding
Tsunami of approximately 14m above sea level flooded the site Design basis 5.7m
Loss of all Power
Tsunami disabled: emergency diesel generators (EDG) service water system DC batteries, etc.
Loss of Cooling
Loss of DC power Long-term SBO (Station Black Out) LUHS (Loss of Ultimate Heat Sink)
Submerged Tank
Source: TEPCO, GE Hitachi Nuclear Energy International
Top of Reactor Building = 46m above grand elevation
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
2-3. Strategy for Safety Enhanced ABWR
16
Further Enhancements
based on lessons learned from Fukushima
Safety Enhanced UK-ABWR
Inherent ABWR Safety Features
Diversified water injection methods Large capacity heat sink (pool) Inactivated Primary Containment Vessel Flood-protected DC battery and EDG for SBO mitigation Aircraft crash countermeasures
Additional diversification of power sources Enhance water injection systems and ultimate heat sink Prevent PCV damage Enhance spent fuel pool cooling Backup Building
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Horizon Supply Chain Events
Technology Overview and GDA Update
1. Technical feature of ABWR
Contents
2. Fukushima Lessons Learned 3. GDA Update 4. ABWR Introduction Video
5. Unique Construction Technologies
6. Conclusion
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence 18
• GDA Assessment Agreements with ONR/EA have been signed in early April 2013
• GDA Core team in Gloucester and Registered Office in Maidenhead identified and being established
• Mobilisation of technical support team from supply chain underway
• Initial submission on design definition, safety case issues, and PCSR*/GEP-RSR** under development
3-1. GDA Update
CY 2013 2014 2015 2016 2017
Step-1
Step-2
Step-3
Step-4 *PCSR: Pre-construction Safety Report **GEP-RSR: General Environmental Permission-Radioactive Substance Release
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
3-2. Strategy for early phase of GDA for UK ABWR
19
By having lessons learned in previous GDAs, HGNE has been established strategy for early phase of GDA • Setting up of a UK based core team
- Subject Matter Experts (for 17 technical areas) have been appointed in both HGNE in Japan and Horizon in UK
• Front loading of work programme to address the more technically challenging issues identified in earlier GDAs - List of topical reports to support PCSR and GEP-RSR have been already
discussed with ONR/EA, and submission timeline has been identified - Early preparation of ALARP assessment of what are seen as key challenging
design issues
• Early engagement with regulators to understand their expectations and for HGNE to get early feedback on approaches
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Horizon Supply Chain Events
Technology Overview and GDA Update
1. Technical feature of ABWR
Contents
2. Fukushima Lessons Learned 3. GDA Update 4. ABWR Introduction Video
5. Unique Construction Technologies
6. Conclusion
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Horizon Supply Chain Events
Technology Overview and GDA Update
1. Technical feature of ABWR
Contents
2. Fukushima Lessons Learned 3. GDA Update 4. ABWR Introduction Video
5. Unique Construction Technologies
6. Conclusion
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence Hitachi, Ltd. 2013. All rights reserved.
Construction Management Strategy
22
Modularization with Very Heavy
Lift Crane
Open-top & Parallel Construction
Floor Packaging
Construction Work Support System
Front-Loaded Construction Engineering
Detailed Schedule Management
Reduce On-site Work Level On-site Work
Improve On-site Work Efficiency
1 2
3 4 Improve Site Support Work Efficiency
5-1.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Staregy-3: Improvement of On-site Work Efficiency
Front-Loaded Construction Engineering
Basic Design
Detailed Design
Construction
Construction Engineering
Previous Design Process
Front-Loaded Construction Engineering
Basic Design
Detailed Design
Construction
Construction Engineering
Requirements from Construction Engineering Inputs from Plant Design
(BOQ, Composite Design, etc.)
- Just Do It As Planned -
Detailed Construction Management
23
5-2.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence 24
Simulation of major large product installation
5-3. Strategy 3: Improve On-site Work Efficiency Crane Simulation
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
Horizon Supply Chain Events
Technology Overview and GDA Update
1. Technical feature of ABWR
Contents
2. Fukushima Lessons Learned 3. GDA Update 4. ABWR Introduction Video
5. Unique Construction Technologies
6. Conclusion
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
6-1. Conclusion
26
ABWR is a safe, efficient, economical design and meets all current safety requirements of modern plants.
The nuclear industry has and will continue to learn from the unfortunate and extreme events which struck eastern Japan in March 2011.
Based on the extreme events at Fukushima, ABWR has evolved more with lessons learned from Fukushima.
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence
6-2. Conclusion
27
We will provide innovative and competitive ABWR technology with a proven history of successful constructions and operations.
Our effective and efficient construction management has contributed to achieving on-time delivery of similar projects.
We are cooperating with Horizon to ensure the project has a positive impact in the local area, and for local communities.
We are also building our supply chain relationship with Babcock International and Rolls-Royce.
Hitachi, Ltd. 2013. All rights reserved.
© Hitachi, Ltd. 2012. All rights reserved. Commercial in Confidence 28