The setting criterion of the downstream surge chamber for pumped storage power station

Abstract This paper aims to explore and overcome the limitation of the existing criterion of downstream surge chamber without considering the influence of the head loss in the long waterway system, and deduce the change process of the flow with time (opening) of the unit. On this basis, the setting...

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Published inJournal of physics. Conference series Vol. 2752; no. 1; pp. 12002 - 12009
Main Authors Wang, Jue, Ding, Jinghuan, Han, Wenfu, Zhao, Long, Du, Kenan
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.06.2024
Subjects
Criteria
Draft tubes
Power plants
Preliminary designs
Pumped storage
Surge tanks
Tailwater
Velocity head
Water hammer
Waterways
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Summary:Abstract This paper aims to explore and overcome the limitation of the existing criterion of downstream surge chamber without considering the influence of the head loss in the long waterway system, and deduce the change process of the flow with time (opening) of the unit. On this basis, the setting criterion of downstream surge chamber is derived, which takes into account the water hammer vacuum caused by water inertia in the tailwater system, the velocity head vacuum at the inlet of the draft tube and the friction vacuum of the water delivery system, and the mathematical model of the limit length of the tailwater system is established. The criterion presented in this paper can be used as a preliminary criterion to determine whether the downstream surge chamber is set up or not, and can provide reference for the preliminary design of similar projects in the early stage.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2752/1/012002