Hydraulic machines. Guide for dealing with hydro-abrasive erosion in Kaplan, Francis, and Pelton turbines
Hydraulic machines. Guide for dealing with hydro-abrasive erosion in Kaplan, Francis, and Pelton turbines
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1 Scope This Guide serves to:
a) present data on particle abrasion rates on several combinations of water quality, operating conditions, component materials, and component properties collected from a variety of hydro sites;
b) develop guidelines for the methods of minimizing particle abrasion by modifications to hydraulic design for clean water. These guidelines do not include details such as hydraulic profile shapes which should be determined by the hydraulic design experts for a given site;
c) develop guidelines based on “experience data” concerning the relative resistance of materials faced with particle abrasion problems;
d) develop guidelines concerning the maintainability of abrasion resistant materials and hard facing coatings;
e) develop guidelines on a recommended approach, which owners could and should take to ensure that specifications communicate the need for particular attention to this aspect of hydraulic design at their sites without establishing criteria which cannot be satisfied because the means are beyond the control of the manufacturers;
Другие стандарты BS