A Techno-economical View On Energy Losses At
Hydropower Dams (case Study Of Karun III
Dam And Hydropower Plant)
Author(s)
M. Jorabloo, M. Abdolahpour, R. Roshan & H. Sarkardeh
Abstract
In order to support the future economic developments in the world, one of the
most important objectives is the reduction of energy losses. Apart from this
objective, hydropower dams which are considered a renewable energy source
encounter this problem. Karun III Dam and Hydropower Plant is constructed on
the Karun River in the province of Khuzestan, Iran, with a capacity of 2000 MW.
The Dam is a double arch concrete type, 205m high from the foundation and
185m high from the river bed. In the present work by using the physical model
of Karun III Dam and measuring pressures in all parts of conveyance members,
energy losses for each part were calculated separately. Experiments were
conducted in three different elevations and with maximum design discharge. By
calculating the cavitation index along the related hydraulic structures, probability
of cavitation was studied. Discharge coefficient was also estimated in the
operation conditions. Experiments showed that when the reservoir elevation was
increased in constant discharge; the discharge coefficient was increased
respectively. Also it was observed that increasing the reservoir elevation causes
head losses to increase in different parts of conveyance members except the antivortex
structure which was installed at the top of the intake. Moreover, energy
losses at the Y-Branch member were observed more than other parts.
Keywords: Karun III Dam and Hydropower Plant, energy losses, physical
model, cavitation.
Keywords
Karun III Dam and Hydropower Plant, energy losses, physical
model, cavitation
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