REMAINING LIFE EVALUATION OF POWER PLANT COMPONENTS FROM CREEP STRAIN-RATE, TEMPERATURE AND PRESSURE DATA

摘要：

Methodology developed to evaluate the remaining life of a power plant reheater based on creep strain-rate estimate, and temperature and pressure measurements, is described. It uses well-known concepts from the literature on creep and is flexible to account for the cyclic operation of Brazilian power plants. The results computed for remaining life are compared with those obtained from the Larson-Miller approach, which does not take into account creep strain rate in the components subject to high temperature and internal pressure. The discrepancies verified between the two methodologies justify further research of on-line creep strain rate monitoring in order to assess the accuracy of the proposed methodology.

作者: C. F. Matt H. C. Furtado R. O. Rocha V. G. Guedes M. A. Michalski B. R. Cardoso F. F. Santos L. Felippe

作者单位: Electric Power Research Center (CEPEL), Box 68007, Rio de Janeiro, Brazil Tractebel Energia Company, .Box 38, Capivari de Baixo, Santa Catarina, Brazil

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）