Mathematical Modelling of Erosion Behaviour of Impacted Fly Ash Particles on Coal Fired Boiler Components at Elevated Temperature

S.K. Das; K.M. Godiwalla; S.P. Mehrotra

首页> 外文期刊>HIGH TEMPERATURE MATERIALS AND PROCESSES >Mathematical Modelling of Erosion Behaviour of Impacted Fly Ash Particles on Coal Fired Boiler Components at Elevated Temperature

【24h】

Mathematical Modelling of Erosion Behaviour of Impacted Fly Ash Particles on Coal Fired Boiler Components at Elevated Temperature

机译：Mathematical Modelling of Erosion Behaviour of Impacted Fly Ash Particles on Coal Fired Boiler Components at Elevated Temperature

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Fly ash particles entrained in the flue gas from boiler furnaces in coal-fired power stations can cause serious erosive wear on steel surfaces along the flow path. Such erosion can reduce significantly the operational life of the boiler components. A fundamentally-derived mathematical model embodying the mechanisms of erosion involving cutting wear, plastic deformation wear and effect of temperature on erosion behaviour, has been developed to predict erosion rates on the coal fired boiler components such as boiler tubes, economiser and air-preheater assemblies at room and elevated temperature. Various grades of steels commonly used in the fabrication of boiler components and published data pertaining boiler fly ash has been used for modelling the process. The model incorporates the tensile properties of the target metal surface at room and elevated temperatures, as well as the characteristics of the ash particle dynamics in the form of impingement angle, impingement velocity and composition of the ash particle in terms of the silica content. The mathematical model has been implemented in an user-interactive in-house computer code, (EROSIM-1) to predict the erosion rates at room and elevated temperature for various grades of steel normally used in boiler components. The model predictions have been found to be in good agreement with the published data. The model will be calibrated in future with the plant and experimental data generated from a high temperature air-jet erosion testing facility. It is hoped that the calibrated model will be useful to the power plant industry for erosion analysis of boiler components.

著录项

来源
《HIGH TEMPERATURE MATERIALS AND PROCESSES》 |2006年第6期|323-335|共13页
作者
S.K. Das; K.M. Godiwalla; S.P. Mehrotra;
展开▼
作者单位

National Metallurgical Laboratory (Council of Scientific & Industrial Research) Jamshedpur 831 007, India;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类金属学与热处理;
关键词
Mathematical process model; solid particle erosion; boiler components; fly ash; erodent; tensile properties; plastic deformation; steel grades;

Mathematical Modelling of Erosion Behaviour of Impacted Fly Ash Particles on Coal Fired Boiler Components at Elevated Temperature

摘要

著录项

相关主题

期刊订阅