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| DOI：10.13522/j.cnki.ggps.20180057 |
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| Optimal Design of Drip Irrigation Pipe Network Using the Firefly Algorithm |
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CHEN Jixu, XU Shuqin, ZHOU Hao
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College of Water Resources & Civil Engineering,Northeast Agricultural University, Harbin 150030, China
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| Abstract: |
| 【Objective】 Traditional drip irrigation design largely relies on experience and this paper presents a optimal method to help design drip irrigation pipe network aiming to reduce its costs.【Method】An optimization model was established for drip irrigation pipe network, with minimum investment as the objective function, working pressure and flow rate in the pipe as the main constraints. The optimization was solved using the fireflies algorithm for the pipe diameters and the costs for different pipe network layouts. An 87 hm2 of maize field was selected as an example to study the optimization of the three layouts: comb type, Feng type, and π type of the backbone pipeline. The optimal results were obtained by integrating the costs of the auxiliary projects associated with the pipe networks.【Result】 The case showed that the costs for the “comb” type, the “Feng” type and the “π” type were 12 443.08 yuan/hm2, 12 263.17 yuan/hm2, and 13 698.20 yuan/hm2 respectively. 【Conclusion】 The optimization of the drip irrigation pipe network can be effectively solved by he firefly algorithm to obtain the pipe diameter and pipe network layouts. Separately considering the costs of the accessory projects from the costs of the drip irrigation project can further simplify the optimization problem. For the cast study, the “Feng” type of the backbone pipe was found to be most economical. |
| Key words: irrigation; pipe network arrangement; firefly algorithm; optimization |
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