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All Journal Geoplanning : Journal of Geomatics and Planning Journal of Regional and City Planning Info-Teknik Science and Technology Indonesia Jurnal Rekayasa Sipil CANTILEVER Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil
M. Baitullah Al Amin, M. Baitullah
Sriwijaya University
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences Transportation

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Journal : CANTILEVER

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KAJIAN TEKNIS DAN EKONOMI PERENCANAAN PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTMH) DI SUNGAI LEMATANG KOTA PAGAR ALAM Wibowo, Handy; Daud, Arifin; Al Amin, M. Baitullah
CANTILEVER Vol 4, No 1 (2015): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

Indonesia has a potential of renewable energy resources for mini-hydropower up to 450 MW. The energy resources development in Indonesia refers to Presidential Decree No.5/2006 on National Energy Policy, where the government aims to increase the capacity installed in micro-hydro power plants become 2,846 MW by year 2025. Pagar Alam City is a hilly area with an altitude range of 400 m – 3,400 m above sea level. The topography varies from 0° - 15°, to 45° slope. The average rainfall ranges 1,462 - 5,199 mm per year. In addition, Pagar Alam has several rivers, one of them is Lematang River. These conditions make Pagar Alam supposed to become potential area to develop micro-hydro power plants. This study deals with the planning of a micro-hydro power plant within Lematang River based on engineering and economic aspects. The study was done through several steps, i.e. 1) surveying and collecting data of river discharges, rainfall intensity, climatology parameters, and topographic map; 2) analysis of water availability, 3) hydraulic head analysis, 4) analysis of generated power for micro-hydro power plant, and 5) investment feasibility analysis for the constructions. The results of this study show that the availability of water in the river is 3.076 m3/s, the net hydraulic head is 11.442 m, the generated power is 165 kW for total efficiencies 47.9%, and the annual hydroelectricity production is 1.3 GWh/year. The investment feasibility analysis for the construction indicates that the planning of micro-hydro power plant development is feasible to implement.Key Words: hydropower, green energy, micro-hydro, engineering economics
SIMULASI KARAKTERISTIK GENANGAN BANJIR MENGGUNAKAN HEC-RAS 5 (STUDI KASUS SUBSISTEM SEKANAK DI KOTA PALEMBANG) Al Amin, M. Baitullah; Ulfah, Luthfiyyah; Haki, Helmi; Sarino, Sarino
CANTILEVER Vol 7, No 2 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

This paper deals with the modelling and simulation of flood inundation characteristics i.e. boundaries, depths, and velocities within Sekanak Subsystem which is one of flood-prone areas in Palembang City, Indonesia. The area of subsystem being studied was about 11 km2 . The new hydrodynamic model, HEC-RAS 5.0 was used to simulate the flood flow regimes by integrating the one-dimensional and two-dimensional model, known as combined 1D/2D flow model. The geometry of drainage channel was used as 1D domain to simulate the flow routing along the channel based on certain boundary conditions i.e. 25-yrs flood discharge and tide level both in upstream and downstream. The 2D domain in the model was the geometry of area beside the channel. The flow of 1D and 2D domain were connected by lateral weir, so the water which overflowing from the channel could be routed within 2D areas. The result shows that the area of inundation during lowest tide level is about 3.43 km2 with the velocities and depths range between 0 – 1.18 m/s and 0 – 3.08 m respectively. Furthermore, for average tide level, the area of inundation increases to 3.54 km with the velocities and depths range between 0 – 1.30 m/s and 0 – 3.11 m respectively. The maximum potential of inundation during the highest tide level is about 4.46 km2 with the velocities and depths respectively range between 0 – 2.64 m/s and 0 – 3.40 m. Therefore, it can be concluded that almost half of subsystem area potentially being inundated (40.11%), so it requires appropriate flood control and management to reduce the risk.
Co-Authors Adhitya, Bimo Brata Alia, Febrinasti Alia, Febrinasti Anwar, Widya Fransiska F Ayu Marlina Citra Indriyati Daud, Arifin Haki, Helmi Helmi Haki Marlina, Ayu Reini Silvia Ilmiaty Sarino . Toyfur, Mona Foralisa Ulfah, Luthfiyyah Wibowo, Handy