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Modeling Time Variation of Reservoir Trap Efficiency

DSpace at IIT Bombay

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Title Modeling Time Variation of Reservoir Trap Efficiency
 
Creator GARG, V
JOTHIPRAKASH, V
 
Subject Sedimentation; Genetic programming; Reservoirs; Hydrologic models; Evolutionary computation; Artificial intelligence; Neural networks; India
 
Description All reservoirs are subjected to sediment inflow and deposition to a certain extent resulting in reduction of their capacity. Trap efficiency (Te), a most important parameter for reservoir sedimentation studies, is being estimated using conventional empirical methods till today. A limited research has been carried out on estimating the variation of Te with time. In the present study, an attempt has been made to incorporate the age of the reservoir to estimate the Te. This study investigates the suitability of conventional empirical approaches along with soft computing data-driven techniques to estimate the reservoir Te. The incorporation of reservoir age, in empirical model, has resulted in a better Te estimation. Further, to estimate Te at different time steps, soft computing approaches such as artificial neural networks (ANNs) and genetic programming (GP) have been attempted. Based on correlation analysis, it was found that ANN model (4–4-1) resulted better than conventional empirical methods but inferior to GP. The results show that the GP model is parsimonious and understandable and is well suited to estimate Te of a large reservoir.
 
Publisher ASCE
 
Date 2012-07-17T10:25:37Z
2012-07-17T10:25:37Z
2010
 
Type Article
 
Identifier Journal of Hydrologic Engineering, ASCE,15(12)1001-1015
0733-9429
http://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0000273
http://dspace.library.iitb.ac.in/jspui/handle/100/14389
 
Language English