Treatise on water hammer in hydropower standards and guidelines

27th IAHR Symposium on Hydraulic Machinery and Systems

Bergant, A.^1 ; Karney, B.^2 ; Pejovi, S.^3 ; Mazij, J.^1

Litostroj Power D.o.o., Litostrojska 50, Ljubljana

1000, Slovenia^1

Department of Civil Engineering, University of Toronto, Toronto

M5S 1A4, Canada^2

300 Webb Drive, Mississauga

L5B 3W3, Canada^3

关键词: Control strategies;    Hydraulic transients;    Hydropower plants;    Industrial water;    Operating condition;    Operating ranges;    Operational scenario;    Standards and guidelines;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/22/4/042007/pdf
DOI  :  10.1088/1755-1315/22/4/042007

来源: IOP

【 摘 要 】

This paper reviews critical water hammer parameters as they are presented in official hydropower standards and guidelines. A particular emphasize is given to a number of IEC standards and guidelines that are used worldwide. The paper critically assesses water hammer control strategies including operational scenarios (closing and opening laws), surge control devices (surge tank, pressure regulating valve, flywheel, etc.), redesign of the water conveyance system components (tunnel, penstock), or limitation of operating conditions (limited operating range) that are variably covered in standards and guidelines. Little information is given on industrial water hammer models and solutions elsewhere. These are briefly introduced and discussed in the light of capability (simple versus complex systems), availability of expertise (in house and/or commercial) and uncertainty. The paper concludes with an interesting water hammer case study referencing the rules and recommendations from existing hydropower standards and guidelines in a view of effective water hammer control. Recommendations are given for further work on development of a special guideline on water hammer (hydraulic transients) in hydropower plants.