Role of Regulating Reservoir Operational Management in Performance Improvement of Moghan Irrigation Network

Document Type : Research Paper

Authors

1 Associate Professor, Water Structure Department, Faculty of Agriculture, Tarbiat Modares University.

2 Assistant Professor, Department of Irrigation Engineering, College of Aburaihan, University of Tehran

3 M.Sc. Graduate Student, Water Structure Department, Faculty of Agriculture, Tarbiat Modares University.

Abstract

 
Poor performance of irrigation networks due to improper management and operation of irrigation canal structures has attracted the attention of managers to improve operational management of these structures. Regulating in-line reservoirs can have significant impacts on performance improvements of operational management of irrigation systems. To this end, good coordination between inlet and outlet structures as well as downstream demands should be provided. Under the condition that control and management of the reservoir is done with good coordination with other sectors, the flow in the canal would be more stable. This leads to decrease in the water level fluctuations and better services to water users. Reservoir operation and management investigation requires applying hydrodynamic models. In this study, hydrodynamic model of ICSS was adopted for modelling the flow in the regulating reservoir of Moghan Irrigation Network. Eight operational scenarios for entrance hydrograph to the canal system were considered, which consisted of gradual and sudden decreasing of inflow for two status of (i) non operation and (ii) with reservoir operation. Similar scenarios were assessed for the increasing mode as well. The results indicate that response time of the system and stability of water delivery improve by applying reservoir operation. In the decreasing scenarios, the adequacy indicator improves, while in the increasing ones, the efficiency indicator of water delivery increases when the reservoir is operated. According to the results, the latter improvement for the main off-take was obtained as 0.45% and 6.75% for, respectively, adequacy and stability.

Keywords


  1. اسلامبولچی­زاده، ه. 1385. ارزیابی و بهبود مدیریت مخزن در بهره­برداری شبکه‌های آبیاری. پایان­نامه کارشناسی ارشد سازه­های آبی دانشگاه تربیت مدرس، 140 صفحه.
  2. هاشمی، س. م.؛ منعم، م. ج و فان اورلوپ، پ. ج. 1391. بهبود بهره­برداری کانال اصلی آبیاری با استفاده از استراتژی ذخیره درون مسیری به کمک سامانه کنترل خودکار هوشمند پیش­بین (MPC). نشریه آبیاری و زهکشی ایران، 4 (6): 342-352.
  3. Bhadra, A., Bandyopadhyay, A., and Raghuwanshi, N. S. 2009. Integrated reservoir-based canal irrigation model, i: description.  Journal of Irrigation and Drainage Engineering. 135(2):149-57.
  4. Clemmens, A. J. 2012. Water-level difference controller for main canals. Journal of Irrigation and Drainage Engineering. 138(1):1-8.
  5. Guan, G., Clemmens, A.J., Kacerek, T.F., and Wahlin, B.T.2012. Applying water-level difference control to central arizona project. Journal of Irrigation and Drainage Engineering, 137:747-753.
  6. Hashemy, S. M., Monem, M. J., Maestre, M., and Van Overloop, P. J. 2013. Application of an in-line storage strategy to improve the operational performance of main irrigation canals using model predictive control. Journal of Irrigation and Drainage Engineering. 139(8):635-644.
  7. Manz, D. H., and Schaalje, M. A. 1992. Development of application of the irrigation conveyance system simulation model, International Seminar on the Application of the Irrigation Mathematical Modeling for the Improvement of Irrigation Canal Operation, January 1992, Montpellier, France.
  8. Molden, D., and Gates, T. 1990. Performance measures for evaluation of irrigation‐water‐delivery systems. Journal of Irrigation and Drainage Engineering, 116(10):804-823.
  9. Schuurmans, W., Brouwer, R., and Wonink, P. 1992. Identification ofcontrol system for canal with night storage. Journal of Irrigation and Drainage Engineering, 118(3):124-130.
  10. Van Overloop, P. J. 2006. Drainage control in water management of polders in the Netherlands. Irrigation and Drainage Systems, 20:99-109.
  11. Volkan, F., and Voron, B. 1992.Improvement of the regulation techniques in Turkey. P. 67-79.  InThe Example of the Harran Main Canal. Proc. of Conf., The application of Mathematical Modelling for the Improvement of Irrigation Canal Operation Montpellier, France. 17-21 Oct. 1992., Montpellier, France.