BAYIN, DARMAWI and Sipahutar, Riman and Bernas, Siti Masreah and Imanuddin, Momon Sodik (2013) PENGEMBANGAN KEMANDIRIAN ENERGI PEDESAAN BERWAWASAN LINGKUNGAN MELALUI RANCANG BANGUN KINCIR AIR APUNG PADA SALURAN SEKUNDER DAERAH REKLAMASI RAWA PASANG SURUT. Post-Doctoral thesis, Program Pascasarjana Universitas Sriwijaya.
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Abstract
A series of tests has been done to examine wether or not the flow of water through the sluice of secondary tidal irrigation canal could be harnessed as a source of energy. The water come into and go out of the canal as tidal current regarding the movement of tide. The location of canal is at Desa Bangun Sari Kecamatan Tanjung Lago, Kabupaten Banyuasin. Scientific measurements and theoritical studies on the behavior of the tide and the physical properties of flow at sluice. These data are utilized as the base of the design and the calculation of the construction frames of equipments used to convert the flowing water into electrical energy. On the base of theoritical and practical reasons, the equipment constructed is a Floating Waterwheel. Diameter of the wheel is 78 centimeters surrounded by eight flat blades. Overall size of support construction is 90 centimeters wide and 200 centimeters long. The support construction is totally made of steel ST-37 and the waterwheel is totally made of Alluminium Alloy 6063 (AlMgSiO). The main consideration in selecting the material is to make the construction as light as possible. For the purpose of light and strength, the material used in the construction is steel in the form of strip and rectangle and the Alluminium Alloy in the form of flat and rectangle as well. The joints are welded for steels and riveted joint for aluminium alloy. The sum of blades is determined by the torque acting on the shaft of the waterwheel when the wheel is immersed in the flowing water as deep as 20 centimeters at varying flow velocity. The depth of immersion is determined by the wants of waterwheel to work along the year, regarding the availability of minimum level at the summer season is 20 centimeters. The width of Floating Waterwheel is determined by the wide of the gate where the waterwheel will fit into, and the body length is determined by the requirement length for the equilibrium of forces. The form of blades are flat in order to harvest the energy contained in the water coming in and out of the canal reversibly. The wheel of waterwheel is tested in the forms of Open Side and the Closed Side. The wheel of open side has the overall efficiency of 25.9%; the wheel of closed side has the efficiency of 45.7%. The carbon steel of ST-37 is used to construct the support frame of the floating waterwheel. All fhe support frame of waterwheel is underwater painted to prevent corrosion. The joints of the frame trusses are welded to yield a rigid connection. The upward force required to maintain the waterwheel stay float on the water is gained from the vaccum PVC pipes of six centimeters diameter arranged at the left and the right side of waterwheel. The transmission system is consist of two stages of gear and three flexible couplings to transmit the power from the wheel to the alternator. Total transmission ratio from the main wheel to the alternator is 1 : 42.5. The test results showing that the floating waterwheel produce power as long as eleven hours in one day of rain season. The power produce in five hours when the flow coming in and six hours when the flow coming out of the canal. The total energy produced in one day is 0.87 kWh. In the dry season the floating waterwheel produce power as long as twelve hours i.e, six hours when the flow coming in and six hours when the flow is coming out. The total energy produced is 1.3 kWh in one day. vi The test conducted to the water of the canal before and after the floating waterwheel showing that no significant changes found. All items tested are below the allowable contamination limits determined by the local government.
| Item Type: | Thesis (Post-Doctoral) |
|---|---|
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering T Technology > TJ Mechanical engineering and machinery > TJ1-1570 Mechanical engineering and machinery |
| Divisions: | 11-Postgraduates Study > 95029-Environmental Science (S3) |
| Depositing User: | Dr.Ir.H. Darmawi Bayin |
| Date Deposited: | 27 Dec 2019 09:18 |
| Last Modified: | 27 Dec 2019 09:18 |
| URI: | http://repository.unsri.ac.id/id/eprint/22285 |
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