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
Highlights
Mikrohidro atau yang dimaksud dengan Pembangkit Listrik Tenaga Mikrohidro (PLTMH), adalah suatu pembangkit listrik skala kecil yang menggunakan tenaga air sebagai tenaga penggeraknya seperti, saluran irigasi, sungai atau air terjun alam dengan cara memanfaatkan tinggi terjunan dan jumlah debit air
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
Tenaga Air. [Online] Available at: https://id.wikipedia.org/ wiki/Tenaga_air [Diakses 30
Summary
Tenaga air atau hydropower adalah energi yang diperoleh dari air yang mengalir. Energi listrik yang berasal dari energi kinetik air ini sering disebut sebagai hydroelectric. Dengan kondisi topografi dan iklim tersebut, maka dapat dimungkinkan untuk dilakukan perencanaan pengembangan PLTMH di Kota Pagar Alam di mana penelitian ini berfokus pada lokasi Sungai Lematang. Tujuan dari penelitian perencanaan PLTMH di Sungai Lematang Kota Pagar Alam ini adalah sebagai berikut: 1. Mikrohidro dibangun berdasarkan kenyataan bahwa adanya air yang mengalir di suatu daerah dengan kapasitas dan ketinggian yang memadai. Dengan: Pnet : Daya bersih yang dapat dibangkitkan (kW) Q : Debit air (m3/s) g : percepatan gravitasi, 9,81 (m/s2) He : head efektif (m) Eo : Efisiensi dari sistem Eturbin : 0,70 ~ 0,85 (tergantung dari jenis turbin yang dipakai). Pembangkit listrik tenaga mikrohidro (PLTMH) merupakan pembangkit listrik yang menggunakan energi potensial air dan dapat dikelompokkan berdasarkan metode mendapatkan head, sistem operasi dan jenis turbin yang digunakan. Turbin Impuls Turbin jenis ini meliputi crossflow, pelton, dan turgo, menggunakan tekan yang sama pada setiap sisi sudut geraknya atau runner di mana bagian turbin yang berputar
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
