Future Coal-Fired Power Plant - Alloy Development For Critical Components: Project Profile

Abstract:

<p>The objectives for this project are: <bl> <li>To develop materials with 100,000 hour creep strength at 650&deg;C and 100MPa and improved resistance to steam oxidation, whose use will result in increases in plant operating efficiency and thereby reduce carbon dioxide emissions.</li> <li>Increase understanding of microstructural evolution in advanced materials and weldments, steam oxidation mechanisms, and coating degradation mechanisms.</li> <li>Mechanical behaviour of advanced materials and weldments on laboratory samples and full size prototype components.</li> <li>Demonstration of prototype manufacturing, joining, non destructive examination and coating capabilities for large components.</li> </bl></p> <p>Improved efficiency in coal-fired power plant can be achieved by increasing steam temperatures and pressures, and this has been made practically possible over a number of years by the development of steels with improved creep strength enabling operation up to 600-620&deg;C at present. In Europe a new initiative (COST 536) has been launched, entitled 'Alloy Development for Critical Components of Environmentally Friendly Power Plant (ACCEPT)', and encompasses all stages in the development and validation of advanced steels capable of operation at temperatures up to 650&deg;C. The primary route of achieving this is through the development of new alloying and coating concepts.</p> <p>This project focuses on the validation testing of the capabilities of a new class of steels and their weldments at temperatures up to 650&deg;C and the longer term qualification of advanced steels developed under COST 522. The project has been accepted for inclusion in the COST 536 initiative.</p> This profile contains information on the project's: <bl> <li>Objectives</li> <li>Summary</li> <li>Cost</li> <li>Duration</li> <li>Lead Contractor</li> <li>Collaborators</li> </bl>

Author(s):

DTI