A improved fuzzy analytic hierarchy process application in prevention high temperature corrosion

摘要：

The mechanism of formation of high temperature corrosion in large scale utility boilers is complex and involves numerous interrelated influencing factors.The fuzzy analytic hierarchy process (FAHP) has been employed in this paper to make quantitative computations of the factors that influence the formation of the corrosion.When constructing the fuzzy judgment matrix,an affecting degree table of influencing factors was worked out first.Then the score of a pair-wise comparison was computed from a proposed expression rij=x=y+0.5.This improved method was applied to the analysis of the high temperature corrosion problem of a 215 MW coal-fired utility boiler,combining with in-site test data.The weights of the influencing factors were determined quantitatively and the main influencing factors were found out.Based on the calculated results,various adjustments to the combustion processes were made and,as a result,high temperature corrosion on the water wall tubes has been found largely reduced on the schedule shutdown of the boiler half year later.Moreover,a real-time high temperature corrosion detection technique can be developed based on the method reported in this paper.

关键词： High temperature corrosion Fuzzy analytic hierarchy process Water wall

作者: Haiyu Liu Houzhang Tan Xiaohe Xiong Linzhi Yao Yanqing Niu Lin Ma Tongmo Xu

作者单位: School of Energy and Power Engineering,Xian Jiaotong University,Xian 710049,China School of Energy and Power Engineering,Xian Jiaotong University,Xian 710049,China CFD Centre / SPE aiyuan University of Technology,Taiyuan 030024,China CFD Centre / SPEME,University of Leeds,LS2 9JT,UK

会议类型: 国际会议

会议名称: The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 474-479

在线出版日期: 2011-07-19（万方平台首次上网日期，不代表论文的发表时间）