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Interpretation and application of the hydro-abrasive erosion model from IEC 62364 (2013) for Pelton turbines
Renewable Energy ( IF 9.0 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.renene.2020.06.117
Anant Kumar Rai , Arun Kumar , Thomas Staubli , Xiao Yexiang

Abstract An accurate prediction of hydro-abrasive erosion helps in design, planning and operation strategies of a hydropower plant. In the empirical erosion model from the International Electrotechnical Commission (IEC) 62364 standard, various terms such as flow co-efficient (Kf), material factor (Km) and exponent (p) were not provided for Pelton turbines components. The present paper aims to find the values of these terms and to interpret inadequately defined terms like erosion depth (S) and shape factor (Kshape) for application of IEC 62364 (2013)# model. From some field and laboratory data, the values of Kf and p were obtained for Pelton turbine components using multivariate regression analysis. The obtained values of Kf are in the order of 10−6 and 10−12 for various zones of buckets and nozzle assembly respectively whereas p values are in range 1–5. The Km values for 6 different materials, i.e. three types of chrome nickel steels, plasma and high velocity oxygen fuel (HVOF) sprayed coatings and bronze buckets were obtained as 1, 1, 1, 0.6, 0.1 and 2.2, respectively. #IEC 62364 (2013). Hydraulic machines - Guide for dealing with hydro-abrasive erosion in Kaplan, Francis and Pelton turbines. Edition 1.0 (June 2013), International Electro technical Commission, Geneva, Switzerland.

中文翻译:

IEC 62364 (2013) 水磨蚀侵蚀模型对 Pelton 涡轮机的解释和应用

摘要 水磨蚀的准确预测有助于水力发电厂的设计、规划和运行策略。在国际电工委员会 (IEC) 62364 标准的经验侵蚀模型中,没有为 Pelton 涡轮机部件提供各种术语,例如流量系数 (Kf)、材料系数 (Km) 和指数 (p)。本文旨在找到这些术语的值,并解释定义不充分的术语,如腐蚀深度 (S) 和形状因子 (Kshape),以应用 IEC 62364 (2013)# 模型。从一些现场和实验室数据中,使用多元回归分析获得了 Pelton 涡轮机部件的 Kf 和 p 值。对于叶片和喷嘴组件的各个区域,获得的 Kf 值分别为 10-6 和 10-12 的数量级,而 p 值在 1-5 的范围内。6种不同材料的Km值分别为1、1、1、0.6、0.1和2.2,即三种类型的铬镍钢、等离子和高速氧燃料(HVOF)喷涂涂层和青铜桶。#IEC 62364 (2013)。液压机 - 处理 Kaplan、Francis 和 Pelton 涡轮机中水磨蚀侵蚀的指南。1.0 版(2013 年 6 月),国际电工委员会,瑞士日内瓦。液压机 - 处理 Kaplan、Francis 和 Pelton 涡轮机中水磨蚀侵蚀的指南。1.0 版(2013 年 6 月),国际电工委员会,瑞士日内瓦。液压机 - 处理 Kaplan、Francis 和 Pelton 涡轮机中水磨蚀侵蚀的指南。1.0 版(2013 年 6 月),国际电工委员会,瑞士日内瓦。
更新日期:2020-11-01
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