The Influence of Using the Diversion Tunnel on Hydraulic Transient of Hydropower Plants

Author

Xu, Lai ; Ling, Chen

Author_Institution

State Key Lab. of Water Resources & Hydropower Eng. Sci., Wuhan Univ., Wuhan

fYear

2009

fDate

27-31 March 2009

Firstpage

1

Lastpage

6

Abstract

Reconstructing the diversion tunnel as a permanent construction is not new in large underground hydropower plants´ design, however most of them are taken as spillway tunnels or tailrace tunnels. A new design method of using diversion tunnel was proposed for further utilization. This paper analyzed the influence of using diversion tunnel on hydraulic transient of hydropower plants, including shaft surging, water hammer and dynamic properties of the governing system of the turbine. Calculation results verified the assumption that using diversion tunnel could reduce chamber diameter of surge shaft. The results provide reference to future design for underground hydropower plants.

Keywords

hydroelectric power stations; diversion tunnel; hydraulic transient; shaft surging; spillway tunnels; tailrace tunnels; underground hydropower plant design; water hammer; Design engineering; Design methodology; Hydraulic turbines; Hydroelectric power generation; Laboratories; Plugs; Shafts; Surges; Vents; Water resources;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific

Conference_Location

Wuhan

Print_ISBN

978-1-4244-2486-3

Electronic_ISBN

978-1-4244-2487-0

Type

conf

DOI

10.1109/APPEEC.2009.4918888

Filename

4918888