New Steel Alloys for the Design of Heat Recovery Steam Generator Components of Combined Cycle Gas Plants

被引:0
|
作者
Fernandes, Jorge Pinto
Dias Lopes, Eduardo Manuel
Maneta, Vicente
机构
关键词
Heat Recovery Steam Generator; Benson Once-Through Technology; Finite element modelling; Finite element analysis; Stress Analysis; Uniaxial Fatigue Life Assessment; Uniaxial Creep Life Assessment; Steel Alloy Mechanical Properties; 2 1/4 Cr Bainitic steels; 9-12Cr Martensitic Steels;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Demand of Power is growing everyday, mainly due to emerging economies in CRIB countries (China, Russia, India and Brazil). During the last filly years steam pressure and temperature in power plants have been continuously raised to improve thermal efficiency. Recent efforts to Improve efficiency leads to the development of a new generation of Heat Recovery Steam Generator (HRSG) where the Benson Once-Through Technology is applied to improve thermal efficiency. The main purpose of this paper is to analyse the mechanical behaviour of a High Pressure Superheater Manifold by applying Finite Element Modelling (FEM) and a Finite Element Analysis with the objective to analyse stress propagation leading to the study of damage mechanism e.g. Uniaxial Fatigue, Uniaxial Creep for life prediction. The objective of this paper is also to analyse the mechanical properties of the new high temperature resistant materials in the market such as 2Cr Bainitic steels (T/P23, T/P24) and also the 9-12Cr Martensitic steels (T/P91, T/P92, E911 and P/T122). For this study the design rules for construction of power boilers to define the geometry of the HPSH Manifold were applied
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页码:931 / 938
页数:8
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