Performance analysis of on-demand pressurized irrigation system using COPAM model at Uludag University Application and Research Centre Area

Thesis Type: Postgraduate

Institution Of The Thesis: Uludağ Üniversitesi, Turkey

Approval Date: 2014

Thesis Language: Turkish




In recent years, many countries including Turkey have tended to use of pressurized irrigation systems. For an efficient and an effective irrigation, performance is very important in these systems. In especially on-demand pressurized irrigation systems, due to the fact that there are always probabilities of which hydrants to be used, when to be used, and which amount to be used, the performance analysis of these systems are more important than of other systems. Due to the complexity of analysis of these systems, empirical methods have been used generally. For this purpose, many computer software have been developed recently. In this study, to exhibit optimal design opportunities of the pressurized irrigation networks having an important portion of cost in agricultural production and to determine performance of the system, the COPAM (Combined Optimization and Performance Analysis Model) software, developed by Lamaddalena (1997) and also reported by Lamaddalena ve Sagardoy (2000), was used. This software was applied to the on-demand pressurized irrigation network of Uludag University Agricultural Application and Research Center. Reliability, pressure head of hydrants, various hydrant configurations, piezometric elevation, discharge, and pipe sizes of the system were analyzed using COPAM software which has a wide range of analysis tools. As a result of the analysis, it was found that there was no any deficiency in the system at hydrant level. Moreover; as an alternative scenario, the pipe diameters of existing irrigation system were computed using COPAM, and performance of the system re-analyzed using these computed diameters. Although lower pipe sized were obtained from the calculation, the performance analysis showed that there was no any significant difference on the performance of the system.