Challenges of Engineering and Constructing the Next Generation of Nuclear Plants Jack Tuohy
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29.09.2018
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Challenges of Engineering and Constructing the Next
Generation of Nuclear Plants
Jack Tuohy
Director, Strategic Planning
Hitachi Power Systems America, Ltd.
What has changed?
Energy Policy Act of 2005: Incentives to deployment
Coal seen as high risk
due to uncertainty in C tax
Nuclear Power viewed as a clean energy solution (C free)
Operating Plants: Extraordinary operating record
New build infrastructure is gone
Current Capability in US
Engineering/Design
Procurement
Manufacturing
Construction
Current
Capability in the US
Remember back
New Regulations: Developed in parallel with design, manufacturing and construction activities
New codes and standards: ASME Section III, IEEE Class 1E,…
did not exist
Design Drawings: Pencil on Mylar
Document reviews: Hard copies for everyone (The copier was overburdened)
Typewriters (Proof reading again and again, and again)
Incorporation of comments: Cut and Paste (literally)
Composite drawings (Crude Interference detector)
Slide Rules (I still have mine)
Great leadership
How
to meet the challenge
Use modern tools
Maximize effectiveness of experienced personnel still in the industry
Tap into retired labor pool of experience
Get help from Overseas Programs that did not experience a discontinuity in deployment
of new nuclear units
Japanese model – Vertical Integration
Hitachi Plant Integrated CAE System provides optimized design, visualization, and information management throughout the plant lifetime.
Reactor
Pressure Vessel and Internals
Advanced Construction Technologies
Modular construction is becoming more sophisticated and more extensively employed
Advantages of Modularization
Layout Optimization (Example)
Layout Optimization (Example)
Large Module Applications in R/B
Large Module Applications in T/B
Modular Construction Standardization
Yields Predictable Schedule
Construction Schedule Comparison
Impact of experience and shift to modular construction
Summary Construction Strategies
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