TC 4

Hydraulic turbines

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 4WG 29 Anders WedmarkDELPUB2013-062019

History

Stage
Document
Downloads
Decision Date
Target Date
PNW
4/206/NP PDF file 82 kB
2004-12-24 
ANW
4/216/RVN PDF file 89 kB
2005-04-012005-05
ANW
4/216A/RVN PDF file 121 kB
2005-04-012005-05
1CD
4/244/CD PDF file 3423 kB
2009-01-232008-07
ACDV
4/250/CC Word file 1041 kB
PDF file 187 kB
2009-10-022009-05
PWI
2010-06-082010-03
CCDV
4/260/CDV PDF file 1666 kB
2010-12-24 
PNW
4/259/NP PDF file 1676 kB
2010-12-24 
AFDIS
4/274/RVC Word file 234 kB
PDF file 186 kB
2012-03-302011-08
DECFDIS
2013-01-042012-08
RFDIS
2013-01-082013-01
CFDIS
4/279/FDIS

2013-03-082013-04
APUB
4/283/RVD PDF file 91 kB
2013-05-142013-05
BPUB
2013-05-152013-05
PPUB
2013-06-272013-06
DELPUB
2019-01-14 
WPUB
  

Abstract

IEC 62364:2013 serves to 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; 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;
- develop guidelines based on "experience data" concerning the relative resistance of materials faced with particle abrasion problems;
- develop guidelines concerning the maintainability of abrasion resistant materials and hard facing coatings;
- 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
- and develop guidelines concerning operation mode of the hydro turbines in water with particle materials to increase the operation life. It is assumed that the water is not chemically aggressive. Since chemical aggressiveness is dependent upon so many possible chemical compositions, and the materials of the machine, it is beyond the scope of this Guide to address these issues. It is assumed that cavitation is not present in the turbine. Cavitation and abrasion may reinforce each other so that the resulting erosion is larger than the sum of cavitation erosion plus abrasion erosion. The quantitative relationship of the resulting abrasion is not known and it is beyond the scope of this guide to assess it, except to recommend that special efforts be made in the turbine design phase to minimize cavitation. Large solids (e.g. stones, wood, ice, metal objects, etc.) traveling with the water may impact turbine components and produce damage. This damage may in turn increase the flow turbulence thereby accelerating wear by both cavitation and abrasion. Abrasion resistant coatings can also be damaged locally by impact of large solids. It is beyond the scope of this Guide to address these issues. Key words: hydraulic, turbines, hydro-abrasive erosion

Project

IEC 62364:2013 ED1

Hydraulic machines - Guide for dealing with hydro-abrasive erosion in Kaplan, Francis and Pelton turbines

 

 

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