Interpretation and application of the hydro-abrasive erosion model from IEC 62364 (2013) for Pelton turbines

被引:17
|
作者
Rai, Anant Kumar [1 ,2 ]
Kumar, Arun [3 ]
Staubli, Thomas [4 ]
Xiao Yexiang [1 ]
机构
[1] Tsinghua Univ, Dept Energy & Power Engn, State Key Lab Hydrosci & Engn, Beijing, Peoples R China
[2] NIT Warangal, Dept Mech Engn, Warangal, Andhra Pradesh, India
[3] IIT Roorkee, Dept Hydro & Renewable Energy, Roorkee, Uttar Pradesh, India
[4] Lucerne Univ Appl Sci & Arts, Fluid Mech & Hydro Machines, Luzern, Switzerland
基金
中国国家自然科学基金;
关键词
IEC; 62364; Pelton turbine; Erosion; Sediment; 13Cr-4Ni; Hydropower; SUSPENDED SEDIMENT CONCENTRATION; HYDRAULIC PERFORMANCE; DYNAMIC PERFORMANCE; PREDICTION; FLOW;
D O I
10.1016/j.renene.2020.06.117
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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 (K-f), material factor (K-m) 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 (K-shape) 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 K-f 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 K-m 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. (C) 2020 Elsevier Ltd. All rights reserved.
引用
收藏
页码:396 / 408
页数:13
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