Pressure Vessels & Piping Conference


Prague, Czech Republic

July 15-20, 2018

July 16-18, 2018



Opening Ceremony and Plenary Session

Christine King

Christine King
Vice President and Chief Nuclear Officer Nuclear Division
Structural Integrity Associates, Inc.
San Jose, CA, USA

Topic: Addressing the Challenges of Commercial Nuclear Power in the United States

It is widely known that the US Nuclear industry is currently facing a diverse variety of challenges. There are technical challenges to safely and reliably operate the oldest fleet of plants in the world while matching evolving market conditions that are driven by low-cost natural gas and subsidized renewables. The human talent challenge is to ensure we attract new engineers, scientists, other professionals, and crafts, and effectively transition decades of knowledge while embracing the advantages of the digital age and tools. The market challenges that must be overcome are that the technologies can compete on their own merits in a non-distorted manner, and the policies balance society’s risk related to safety and security of supply. Addressing the market challenges should provide a diverse power supply inclusive of nuclear. With each challenge, we are required to be increasingly bold with our ideas and disciplined in our execution. Our excellence will be our creativity, our perseverance, and ultimately our shared success.

Lubos Prchlik

Luboš Prchlík, Ph. D.
Director of Turbogenerator Product
Doosan Škoda Power
Plzeň, Czech Republic

Topic: Impact of Renewable Energy Generation on Fossil Fuel Power Plants - Challenges of Flexibility Considering Fatigue and Creep-fatigue

With the massive deployment of renewable energy sources, which are unstable by their nature, in concurrence with the growing electricity demand, there are three major challenges of future energy production integrated into existing electricity grids that need to be addressed. These are stability, efficiency and above all flexibility. This defines new requirements for modern steam and gas turbine operation that include a high number of turbine start-ups and load changes, short ramp-up times, or long term low-load operation, while maintaining high efficiency and reliability. However, the flexible operation leads to increased fatigue, thermo-mechanical loading and creep-fatigue loading. Therefore, design modifications and improved fatigue lifetime methods for flexible operational modes, while maintaining life cycle costs at current levels, must be developed. Specific examples of flexibility improvements for steam turbomachinery and related power equipment are presented.