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Optimal Flow Allocation in the Zambezi River System

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  • c. gandolfi
  • g. guariso
  • d. togni

Abstract

The optimal flow allocation in the Zambezi system, the largest multi-reservoir water resources system in southern Africa, is analysed. The problem is formulated in network terms and solved with a network flow algorithm. The present configuration of the system is taken as the reference to evaluate the benefits of the proposed modifications to the existing hydropower schemes. The introduction of additional operational constraints is also considered in order to analyse the costs of environmental protection of paludal ecosystems and to account for secondary objectives (e.g. irrigation, fishery, navigation). The results show that the upgrade of Kafue Gorge scheme through the addition of a new generator stage is the most advantageous from the hydropower production view point. In addition, the protection of paludal ecosystems through periodic controlled flooding and an increase of withdrawals for irrigation purposes may be achieved without dramatically changing the hydroelectric energy production. Copyright Kluwer Academic Publishers 1997

Suggested Citation

  • c. gandolfi & g. guariso & d. togni, 1997. "Optimal Flow Allocation in the Zambezi River System," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 11(5), pages 377-393, October.
    • Handle: RePEc:spr:waterr:v:11:y:1997:i:5:p:377-393
    DOI: 10.1023/A:1007964732399
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    References listed on IDEAS

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    1. W. Grossmann & G. Guariso & M. Hitz & H. Werthner, 1995. "A Min Cost Flow Solution for Dynamic Assignment Problems in Networks with Storage Devices," Management Science, INFORMS, vol. 41(1), pages 83-93, January.
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    Cited by:

    1. Duan Chen & Ruonan Li & Qiuwen Chen & Desuo Cai, 2015. "Deriving Optimal Daily Reservoir Operation Scheme with Consideration of Downstream Ecological Hydrograph Through A Time-Nested Approach," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(9), pages 3371-3386, July.
    2. T. Cohen Liechti & J. Matos & J.-L. Boillat & A. Schleiss, 2015. "Influence of Hydropower Development on Flow Regime in the Zambezi River Basin for Different Scenarios of Environmental Flows," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(3), pages 731-747, February.
    3. Ioslovich, Ilya & Gutman, Per-Olof, 2001. "A model for the global optimization of water prices and usage for the case of spatially distributed sources and consumers," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 56(4), pages 347-356.
    4. Miller, Veronica B. & Landis, Amy E. & Schaefer, Laura A., 2011. "A benchmark for life cycle air emissions and life cycle impact assessment of hydrokinetic energy extraction using life cycle assessment," Renewable Energy, Elsevier, vol. 36(3), pages 1040-1046.

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