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Dadan Rahmandani
Balai Irigasi, Pusat Litbang Sumber Daya Air, Badan Litbang PU
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Engineering

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Kajian Rancangan Irigasi Pipa Sistem Gravitasi Wildan Herwindo; Dadan Rahmandani
Jurnal Irigasi Vol 8, No 2 (2013): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (872.187 KB) | DOI: 10.31028/ji.v8.i2.126-137

Abstract

Pipeline irrigation is an alternative in application of irrigation technology that theoretically has a higher efficiency than open channel irrigation. In application, a highly irrigation efficiency can only be achieved if pipeline irrigation designed and operated properly. Laboratory test shows that to dissolve sediment, flow velocity in pipe is recommended at least 0.5 m/sec. The result shows that on farm scale pipeline irrigation using gravitation in Cikurubuk, Buahdua Sub District, Sumedang District needs to pay attention to: (i) capturing consists of 3 (three) parts of the sediment trap, intake, and safety (strainer and overflow), (ii) intake discharge, water quality, and operation system (iii) pipeline system consisting primary, secondary, and tertiary must take into pipe depth, pipe fittings, and thrust block, (iv) complementary component of the pipeline irrigation system aims to keep it functioning properly. Complementary components consists of valve and drain valves, air vent, pressure gauge, water meter, and pressure release.
Desain Jaringan Irigasi Pipa pada Lahan Datar (Studi Kasus : Petak Tersier Pasir Salam 3 Kiri, Daerah Irigasi Panulisan – Cilacap) Dadan Rahmandani; Joko Triyono; Dadang Ridwan
Jurnal Irigasi Vol 9, No 2 (2014): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1004.326 KB) | DOI: 10.31028/ji.v9.i2.75-85

Abstract

The main problem of the application of pressurized pipe irrigation on flat land is not enough energy, so it may cause problem during the operation of the network. Basically, the flow in the pipe can be designed as open flow, so energy requirement can be reduced. However, the application of pipe irrigation system has not been widely studied so it can not be applied to the field scale. This study aims to create a network of pipe irrigation design by gravity with open flow. The research was done by designing pipe irrigation on flat land in Pasir Salam 3 kiri tertiary area. Afterwards the analysis and evaluation of the design requirements was performed in order to get technical feasibility of implementation. As the results, the diameter of the primary pipelines ranging from 8 inches (200 mm) to 10 inches (250 mm) at a flow rate of 0.35 m/s to 0.50 m/s. While the diameter of the secondary and tertiary pipelines between 1 inch (25 mm) to 6 inches (150 mm) with a flow velocity of 0.25 m/s to 0.46 m/s. These results indicate that the design of the application of irrigation pipe networks on flat land in Pasir Salam 3 kiri tertiary area in the Panulisan Irrigation Area was technically feasible considering the results of hydraulic calculation. Thus the water can flow by gravity at velocity ranging from 0.25 to 0.5 m/s and energy availability 0.09 m larger than requirement.
Co-Authors Dadang Ridwan Joko Triyono Wildan Herwindo