Operation of Roseires and Sennar Dams Using Artificial Neural Network
Operation of Roseires and Sennar Dams Using Artificial Neural Network
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Date
2015-04-27
Authors
Mohamed, Mawada Elgameel
Journal Title
Journal ISSN
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Publisher
UOFK
Abstract
This study, describes the operation of Roseires and Sennar dams
during the dry season when the demand is greater than the available
water at El Deim station and tries to find out the relationship between
water levels, amount of evaporation losses, predicted inflow
discharges at El Deim station during the recession period and
reservoirs contents of Roseires & Sennar dams.
Artificial neural network has been used to establish three models:
Model -1 : To predict inflow discharges at El Deim station .
Model -2 : To predict reservoir water level knowing reservoir content
and year of application.
Model -3 : To find out the numeric relationship between reservoir
water
level & Evaporation losses.
Artificial Neural network using NeuroShell2 software, which
provides a quick and flexible means of creating models for prediction,
has been shown to perform well in comparison with conventional
methods.
Different scenarios of different network structures have been tried, the
best architecture for the three models is the three connected layer with
specified hidden neurons, but the hidden layer in the first two models
consist of two slabs.
The results obtained from model-1, model -2 and model -3 are
used in a computer program to establish the emptying program of
Roseires & Sennar reservoirs using M.S Excel software.
By assuming different areas of Wheat crop - its planting season start
on 2nd period of October - the emptying of the two reservoirs has been
run taking into considerations the following aspects:
i. At the beginning of the empting program, the two reservoirs of
Sennar & Roseires dams are at their predetermined maximum
water levels.
ii. Irrigation demands include projects upstream Sennar dam,
Gezira & Managil schemes and minimum downstream
requirements.
iii. At the end of emptying program, the water level of the two
reservoirs should not drop below the minimum water level of
both reservoirs respectively.
Different abstraction ratios for Sennar & Roseires have been tried
to satisfy the above mentioned considerations.
The best ratio found is 1(Sennar): 4.4 (Roseires).
Description
124page
Keywords
Operation,Roseires,Sennar Dams,Artificia, Neural,Network