Abstract
Application of optimization techniques for determining the optimal operation policy for reservoir is a major area in water resources planning and management. Linear programming, ruled by evolution techniques, has become popular for solving optimization problems in diversified fields of science. An LP-based yield model (YM) has been used to reevaluate the annual yield available from the reservoirs for irrigation. This paper extends the basic yield model and presents a yield model for a multiple-reservoir system consisting of single-purpose reservoirs. Optimum yield of reservoirs system is calculated by yield model. The objective is to achieve prespecified reliability for irrigation and to incorporate an allowable deficit in the annual irrigation target. The yield model is applied to a system of two reservoirs in theManarRiverinIndia. This model can act as a better screening tool in planning by providing outputs that can be very useful in improving the efficiency and accuracy of detailed analysis methods such as simulation.
Highlights
Linear Programming (LP) is a commonly used optimization approach in water resources management
The study of multi-reservoir operation in Manar River is carried out using LP based yield model
Identification and screening of the feasible solution to provide potential candidates for detailed evaluation is a crucial stage during the search for optimal solution of real life problems
Summary
Linear Programming (LP) is a commonly used optimization approach in water resources management. Limitations of computing power meant that optimization was achieved by decomposing reservoir systems in time and space These early models were predominantly deterministic, that is, they did not take into account the stochastic nature of inflows but rather were based on long-term average seasonal or monthly flows. The program MODSIM is a generic program based around LP approaches that has been developed for modeling water resources systems and reservoir operation by Labadiee [4]. This study presents a methodology to optimize the design of the multi-reservoir irrigation system by taking monthly inflow and initial storage and tries to predict the maximum possible releases using Linear programming based Yield model. The specific objectives of the present study can be stated as fallows: 1) To develop a Linear Programming based yield model for reservoir operation for a monthly time step. 3) To draw the conclusions from the interpretation of results obtained
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