Augusto Di Gianfrancesco
Consultant, Rome Area, Italy
Title: Materials for advanced ultra-super critical power plants
Biography
Biography: Augusto Di Gianfrancesco
Abstract
Higher process temperatures and pressures are mandatory to increase net efficiency and reduce CO2 emissions. As consequence of these more severe operating conditions require better materials with higher demands for development, manufacturing and fabrication. This paper summarizes the current status of the art of the materials for ultra-supercritical coal fueled power plants and the trend for the development needed for the next generation called “advanced ultra-supercritical” targeting >50% efficiency, where nickel base superalloys will be necessary for the hottest part of the plant. This new generation of power plants will give an effort for the reduction of the CO2 emission, because forecast confirm the coal will be the most relevant source for energy production at least for the next 30 years.
