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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Teknik Elektro Universitas Tanjungpura ELKHA : Jurnal Teknik Elektro Bulletin of Electrical Engineering and Informatics Jurnal Edukasi dan Penelitian Informatika (JEPIN) Jurnal Teknologi Elektro COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Telecommunications, Computers, and Electricals Engineering Journal Journal of Electrical Engineering, Energy, and Information Technology
Kho Hie Khwee
Tanjungpura University
Humanities Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Social Sciences

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STUDI IDENTIFIKASI POTENSI PEMBANGKIT LISTRIK TENAGA MIKROHIDRO DI DESA AMBAWANG KECAMATAN KUBU KABUPATEN KUBU RAYA Fahri, -; Khwee, Kho Hie; Kurnianto, Rudi
Jurnal Teknik Elektro Universitas Tanjungpura Vol 1, No 1 (2021): Jurnal S1 Teknik Elektro UNTAN
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

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 (head) dan jumlah debit air. Studi Potensi Pembangkit Listrik Tenang Mikrohidro pada sungai Batu Wangkang memberikan tentang ilmu pengetahuan kepada masyarakat sekitar mengenai potensi dan manfaat Pembangkit Listrik Tenaga Mikrohidro. Metode yang digunakan dalam penelitian ini adalah metode casimir yang dibandingkan daya perhitungan manual serta pengambilan data langsung dilapangan. Selain itu juga dengan mendatangi beberapa pihak terkait. Potensi yang berhasil didapat dari penelitian ini dengan tinggi jatuh (head) 17,1 meter dan debit air sebesar 0,285  menghasilkan daya sebesar 26,74 kW dan dengan mengunakan program casimir menghasilkan daya sebesar 26,30 kW. Jenis turbin yang digunakan yaitu Turbin Pelton dan Generator yang dipilih pada output daya turbin sebesar 32,43 kW adalah generator sinkron 1 fasa 40 kW.
Assessing the utilization of palm oil mill effluent in photovoltaic and biogas hybrid energy system for off-grid village Hiendro, Ayong; Husin, Fitriah; Junaidi, Junaidi; Khwee, Kho Hie
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 1: March 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i1.pp454-465

Abstract

The increasing demand for electricity, high prices, and lack of fossil fuels are forcing local community to look for renewable energy sources. Villages in palm oil mills have large volumes of biomass waste, especially palm oil mill effluent (POME), which causes environmental and health issues. This study proposed a hybrid renewable energy system consisting of solar photovoltaic (PV) and biogas to provide sustainable electrification for an off-grid village. To minimize the environmental impact and availability of the applied technology, the PV panels were incorporated with a biogas-fueled generator. Simulation experiments were carried out using the HOMER software for an average daily demand of about 159.65 kWh/day and a peak load of 20 kW. The investigation was emphasized to find the optimal PV/biogas system to serve the village community considering electrical, economical, and environmental aspects. Subsequently, a standalone biogas system was used as the base case. The proposed configuration consisted of a biodigester, a biogas-fueled generator, PV panels, an inverter, and batteries with 8.5 hours of autonomy to produce electricity of around 67,216 kWh/year. The results demonstrated the technical and economic feasibility, as well as the environmental benefits of a PV/biogas system for generating electricity for the off-grid village community.
DESIGN OF LABORATORY-SCALE ARCHIMEDES SCREW TURBINE PROTOTYPE nahak, andre marce; Khwee, Kho Hie; Danial, Danial
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 11, No 3: December 2023
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v11i3.68509

Abstract

The number of blades and helix range in the helical turbine are considered as internal parameters, while the outer radius of the turbine, turbine length, and turbine shaft inclination are regarded as external parameters. Both of these parameters define the geometric characteristics of the helical turbine. The geometric configuration of the Archimedes turbine can be determined using the formulation by Chris Rorres. The designed prototype of the Archimedes turbine has the following specifications: a total of 3 blades (N), an inner diameter (Di) of 11.4 cm, an outer diameter (Do) of 21.28 cm, a turbine length (L) of 80 cm, a screw pitch (Λ) of 25.53 cm, a number of turns (Z) of 3, and a turbine weight of 10.80 kg, with a turbine shaft inclination angle of 30°. From the research findings, the highest turbine performance was achieved at a water discharge of 0.006 m^3/s, resulting in a generated voltage of 41.02 V with a turbine rotation speed of 309.3 rpm.In this research, the experimental method was used, which involved testing the turbine performance by varying the water discharge under both unloaded and loaded conditions (load simulated using a lamp). Throughout the research process, each test data was recorded and analyzed using relevant formulas, and the results were presented in the form of graphs to facilitate drawing conclusions. From the research findings, the best turbine voltage regulation occurred at a water discharge of 0.0026 m^3/s, resulting in a voltage regulation of 22.38%.
Evaluation of Microhydro Power Plant in Parek Hamlet Parek Village Air Besar Sub-district Landak Regency Andri, Andri; Khwee, Kho Hie; Hiendro, Ayong
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 12, No 2: August 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v12i2.79050

Abstract

Parek Village is one of the Disadvantaged, Frontier, and Outermost (3T) areas in Landak Regency, West Kalimantan. This village is not reached by the PLN electricity network. To meet electricity needs, in 2011 a 40 kVA capacity PLTMH unit was built in Parek Hamlet and continues to operate until now. To ensure the success of the PLTMH construction in Parek Hamlet, it is necessary to evaluate the existing PLTMH. This evaluation aims to determine the physical condition of the PLTMH and the technical performance of the PLTMH. This study uses primary data, to obtain primary data, namely by survey and direct measurement to the field to obtain data on water discharge, waterfall height, current, and generator voltage and directly see the condition of the components used in this plant. The evaluation results for the dam, Intake, Forebay, Penstock, and Generator house are still in good condition. The overall condition of the main components such as generators and turbines is still working properly. From the results of the measurements taken, the water discharge from the average of each segment is 0.6824 m3/second and the height of the waterfall is 2,8038 m. The results of the calculation of the potential power that can be generated is 12,8384 kW from 32 kW of installed power. While the usage load used by the community is only 5,842 kW. The comparison of the power used by consumers or the local community with the power that can be generated theoretically is 45,5%. This is because the majority of people there have a low economic level. So residents who use electricity from PLTMH only use it for lighting.
Multiple-node model of wind turbine generating system for unbalanced distribution system load flow analysis Gianto, Rudy; Khwee, Kho Hie
Bulletin of Electrical Engineering and Informatics Vol 13, No 2: April 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i2.5461

Abstract

This paper discusses a method to integrate a wind turbine generating system (WTGS) into a three-phase unbalanced distribution system load flow (DSLF) analysis. The proposed method is based on the single-phase multiple-node model. In the present work, the single-phase multiple-node model is extended to a three-phase multiple-node model to facilitate the load flow analysis of a three-phase unbalanced power system network. The multiple-node model (i.e., three-node model) will only modify the load flow analysis by introducing two lines and two load buses to the distribution system network where the WTGS is installed. Thus, a standard three-phase load flow program can be employed to compute the unknown quantities in the DSLF problem formulation. The proposed method is verified by incorporating the model into the load flow analysis of three-phase distribution networks. The investigation uses two representative distribution networks (i.e., 19-bus and 25-bus networks). The results of the study confirm the validity of the proposed method.
Studi Komparatif Turbin Angin Berdaya Sama dengan Kurva Daya yang Berbeda Berbasis Distribusi Weibull Yandri, Yandri; Khwee, Kho Hie; Kurnianto, Rudi
Jurnal Teknologi Elektro Vol 15, No 1 (2024)
Publisher : Electrical Engineering, Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jte.2024.v15i1.007

Abstract

Pembangkit Listrik Tenaga Angin merupakan pembangkit yang mengubah energi angin menjadi energi listrik dengan menggunakan turbin angin. Penelitian ini bertujuan untuk membandingkan besarnya energi output dua turbin angin yang memiliki daya nominal yang sama namun dengan merk dan kurva daya yang berbeda. Obyek penelitian tempat pemasangan turbin angin berlokasi di Kota Pontianak dan sekitarnya. Data sekunder kecepatan angin diambil dari data hasil pengukuran Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) Supadio Pontianak selama setahun (1 Januari – 31 Desember 2022), sedangkan untuk turbin anginnya mengambil sampel turbin angin berporos datar (Horizontal Axis Wind Turbine / HAWT) merek A dan merek B, dimana masing-masing memiliki daya nominal 1 kW dengan jumlah sudu sebanyak 3 buah. Fungsi kerapatan probabilitas Weibull digunakan untuk menentukan besarnya probabilitas tiap-tiap kecepatan angin selama setahun. Berdasarkan nilai probabilitas ini disertai dengan kurva daya turbin angin maka besarnya energi output (energi listrik) yang dihasilkan oleh turbin angin selama setahun dapat dihitung. Dari hasil olahan data pengukuran kecepatan angin di BMKG Supadio Pontianak dimana Anemometer dipasang pada ketinggian 10 m di atas permukaan tanah, besarnya kecepatan angin rata-rata selama setahun adalah 3,7160 knot atau 1,9115 m/s. Pemasangan turbin angin A dan B pada ketinggian tersebut akan menghasilkan energi listrik berturut-turut sebesar 159,10 kWh/tahun dan 145,93 kWh/tahun. Dengan demikian energi listrik yang dihasilkan oleh turbin angin A lebih besar dibandingkan turbin angin B.
ANALISIS KONSUMSI BAHAN BAKAR PADA PEMBANGKIT LISTRIK TENAGA UAP (PLTU) KETAPANG 2×1O MW Rizki, Tengku M; Yusuf, M. Ismail; Hiendro, Ayong; Khwee, Kho Hie; -, Yandri
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 10, No 2: Juli 2022
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v10i2.57053

Abstract

Energi listrik merupakan suatu faktor penunjang yang sangat penting bagi perkembangan secara menyeluruh di suatu negara bagian manapun. Hal ini menyebabkan tingginya permintaan akan energi listrik, sehingga memaksa penyedia energi listrik menggunakan pembangkit listrik dengan kapasitas besar guna menjaga kontinyuitas pelayanan. PLTU merupakan salah satu pembangkit listrik yang mengsuplay sebagian besar energi listrik ke konsumen. Produksi batubara di Indonesia sebanyak 606,71 juta ton pada tahun 2021, beberapa jenis batubara yang digunakan pada pembangkit listrik adalah jenis low rank coal dan medium rank coal dengan nilai kalori 4100 kcal/kg sampai dengan 5200 kcal/kg. Salah satu parameter yang digunakan pada suatu sistem pembangkit tenaga berbahan bakar batubara adalah specific coal consumption (SCC). Tujuan penelitian ini adalah mengetahui seberapa besar penggunaan konsumsi penggunaan bahan bakar di PLTU Ketapang 2x10 MW kemudian mengetahui jumlah bahan bakar yang digunakan setiap hari dan persentase campuran bahan bakar tersebut. Perbedaan nilai kalori bahan bakar yang digunakan berpengaruh pada konsumsi dimana semakin besar nilai kalori tinggi dapat menyebabkan konsumsi spesifik bahan bakar menurun. Penggunaan bahan bakar cofiring di PLTU Ketapang dengan kalori 4006 Kcal/Kg dan 3815 Kcal/Kg yaitu pada pembangkit unit 1 dengan daya terbesar dihasilkan dihari berbeda sebesar 10000 kW memiliki konsumsi spesifik sebesar 1305.70 kg/kWh. Sedangkan pada pembangkit unit 2 dengan daya terbesar yang dihasilkan dihari kelima sebesar 9920 kW memiliki konsumsi spesifik sebesar 128.16 kg/kWh. Pengunaan bahan bakar campuran (cofiring) pada pembangkit mampu menghemat penggunaan bahan bakar batubara dimana penggunaan cangkang sawit memiliki nilai kalori yang cukup sama dan dapat digunakan sebagai energi dari bahan organik.
PERANCANGAN ENERGI OPTIMUM SISTEM PLTS UNTUK BASE TRANSCEIVER STATION Ariansyah, Ahmad; Hiendro, Ayong; -, Yandri; Khwee, Kho Hie; Abidin, Zainal
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 10, No 2: Juli 2022
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v10i2.60671

Abstract

Kalimantan Barat merupakan daerah yang dilalui garis khatulistiwa yang mendapatkan sinar matahari dengan intensitas cahaya matahari yang tinggi dan energi ini tidak terbatas. Penerapan Pembangkit Listrik Tenaga Surya (PLTS) sebagai pemanfaatan konversi energi listrik di daerah Kalimantan Barat merupakan solusi yang tepat sebagai pelengkap kebutuhan energi Alat yang digunakan untuk menyelesaikan permasalahan pada penelitian ini menggunakan aplikasi Homer Energy Modelling. Piranti ini digunakan untuk menganalisis kombinasi terbaik dalam penggunaan energi yang tersedia untuk menyalurkan kebutuhan beban yang berada di BTS XL Pontianak Timur, Kota Pontianak.Kebutuhan untuk memenuhi energi listrik di BTS XL Pontianak Timur 24 jam sebesar 3.6 kWh/hari dan untuk energi listrik selama 1 tahun sebesar 1.313 kWh/tahun.Hasil analisis teknis untuk memenuhi kebutuhan energi listrik secara off-grid yang paling optimal, menggunakan panel surya sebesar 0,975 kW, inverter sebesar 0,275 kW, dan baterai sebanyak 6 buah. Pada konfigurasi ini panel surya dapat menyuplai energi listrik sebesar 1.482 kWh/ tahun, dengan kelebihan energi sebesar 86.2 kWh/tahun yang dapat di simpan ke dalam baterai.Hasil analisis ekonomi pada skenario off-grid, untuk skenario off-grid yang paling ekonomis adalah konfigurasi dari panel surya"“inverter"“baterai dengan biaya keseluruhan sistem selama 25 tahun (NPC) sebesar Rp 34.051.086 untuk biaya keseluruhan sistem 1 tahun (AC) sebesar Rp2.410.333 serta untuk biaya pokok produksi energi listrik (LCOE) sebesar Rp1.835 /kWh.
Solar-Wind Hybrid Power Generation System Planning In Kijing Beach, West Kalimantan Verdian, Rifqi Azzumardi; Hiendro, Ayong; Khwee, Kho Hie
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 12, No 3: December 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v12i3.86759

Abstract

PLN finds it difficult to meet the electricity needs of the entire Indonesian population. Therefore, it is necessary to develop and optimize New Renewable Energy (EBT) such as solar energy, ocean energy, geothermal, and hydropower. This research uses secondary data that can be accounted for and uses Homer Energy Modeling software to analyze the use of available energy. This research analyzes the planning of a hybrid power plant that uses wind and solar power   to meet energy needs in Kijing Beach from an economic perspective. From the simulations conducted, the analysis results show that the configuration of solar panels "“ wind turbine- inverter - battery in the off grid system results in a total overall cost of Rp2,627,560,16.36.
STUDY OF THE EVALUATION OF 10 KWP ON- GRID SOLAR POWER SYSTEM AT PLTD SIANTAN Rahmansyah, Agum; Hiendro, Ayong; Khwee, Kho Hie
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 1, No 3: February 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v1i3.75489

Abstract

The use of fossil fuels as an energy source remains a primary priority today. However, renewable energy is a potential alternative to support the availability of fossil fuels. Renewable energy is derived from natural sources and has sustainable characteristics, such as solar, wind, and hydro power. Solar Power Plants are one of the electrical energy sources that utilize the sun as their primary source. Indonesia, located on the equator, has abundant solar energy with an average solar radiation intensity of around 4.8 kWh/m^2 per day throughout the country, especially in Pontianak, which is situated on the equator. This research focuses on the evaluation study of an On-Grid Solar Power System located at PLTD Siantan. The objective of this study is to determine the amount of energy generated and conduct economic analysis and feasibility analysis of the On-Grid Solar Power System using three methods: Net Present Value (NPV), Profitability Index (PI), and Payback Period (PP). The data collection and calculations revealed that the average energy produced by the Solar Power System at PLTD Siantan is 29.14 kWp. There are a total of 20 installed solar panels, each with a power of 560W, and one inverter with a capacity of 10 kW. The investment cost for the Solar Power System is IDR. 180,868,506.00. The economic feasibility analysis of the Solar Power System using the three methods resulted in an NPV of IDR. 213,645,234.00, a PI value of 2.18, and a PP value of 14 years
Co-Authors - Fahri -, Yandri Andri Andri Ariansyah, Ahmad Ayong Hiendro Edo, Martoni Fitriah Husin Hastama, Kurnia Ismail, Muhammad Yusuf Junaidi Junaidi Junaidi, J Mahesa, Aditya Gilang Mundus, Ray nahak, andre marce Rahmansyah, Agum Rizki, Tengku M Rudi Kurnianto Rudy Gianto, Rudy Singko, A Siti Helmyati Syukrillah, Muhammad Verdian, Rifqi Azzumardi Yandri Yandri Yandri, - Yusuf, M. Ismail Zainal Abidin