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All Journal Bulletin of Electrical Engineering and Informatics ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Journal of Physics and Its Applications Astonjadro Scientific Journal of Mechanical Engineering Kinematika Teknomekanik Jurnal Energi Baru dan Terbarukan Journal of Social Research Jurnal Profesi Insinyur Indonesia
Windarta, Jaka
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Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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Performance of single axis tracker technology and automatic battery monitoring in solar hybrid systems Satria, Habib; Nisworo, Sapto; Windarta, Jaka; B. Y. Syah, Rahmad
Bulletin of Electrical Engineering and Informatics Vol 12, No 6: December 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v12i6.5506

Abstract

Utilization of elevation angles and azimuth angles is a very important part in maximizing solar energy into electrical energy in photovoltaic (PV). One way to maximize PV power output is to design a single axis tracker system and take into account the azimuth and elevation angles of the sun using the sun position calculator application. The single axis tracker system is set based on the position of the angle of inclination of the surface of the PV 45°, then the angle of 90° and the angle of inclination of 135°. The test results show that the single axis tracker PV system design can work based on the angle settings that have been programmed. Then the use of a battery control system to support the PV reliability system automatically cuts off electricity when the battery voltage drops below 12 V during cloudy weather conditions and excessive battery usage. The integration of the PZEM-017 module with the battery will support monitoring of battery power usage in real time. PV energy data conversion performance uses single axis tracker technology for maximum power reaching 631.72 Watt DC at 12.00 pm and the lowest power reaching 56.02 Watt DC at 6.00 pm.
Integrating PV plant 689 kWp into Coal-Fired Power Plant (CFPP) 615 MW at Paiton: To reduce auxiliary load and coal consumption Albar, Syarief; Windarta, Jaka; Wardaya, Asep Yoyo; Elshaarani, Tarig
Teknomekanik Vol. 5 No. 2 (2022): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (471.21 KB) | DOI: 10.24036/teknomekanik.v5i2.17072

Abstract

Integrating solar energy into a coal-fired power plant is a promising way to reduce auxiliary load and numerous environmental issues related to the coal-based power generation sector. This paper will discuss the annual performance of PV plant 689 kWp at ash disposal that integrated into 615 MW coal-fired power plant PT xxx, including an estimate of total potential energy that can be generated; analysis of auxiliary load to improve performance and decreasing pollutant emissions by coal consumption reduction. The PV Plant has been operated for at least 2 years, built on an area of 5,000m2, is an On-grid PV Plant system with 11 grid Inverters and has 2,120 solar modules installed. Based on the simulation using Helioscope software, it can generate electrical energy up to 977,442 kWh per year with a performance ratio of 79.3%. The result of the PV plant utilization evaluation shows the amount of electrical energy produced is 1,096,105 kWh in 2021, above the estimation from the simulation. This result means auxiliary power load was decreasing by 0.4932%, It is also considered to be able to save the use of 263.065 kiloliters per year of diesel and also save the use of coal up to 386.634 tons or equivalent to 0.007% coal consumption per year. From an environmental point of view, it is also assessed to reduce CO2 emissions equivalent to 920.729 tons/year and the equivalent of planting 4,602 trees per year.
Perencanaan PLTS Rooftop untuk Kawasan Pabrik Teh PT Pagilaran Batang REGA, MUHAMMAD SULTHON NOVERA; SINAGA, NAZARUDDIN; WINDARTA, JAKA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 4: Published October 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i4.888

Abstract

ABSTRAKKawasan perkebunan teh PT Pagilaran Batang, Jawa Tengah memiliki nilai radiasi rata-rata 5,30 kWh/m2/hari sepanjang tahun 2019 dan rata-rata 4,66 kWh/m2/hari dalam rentang 1997-2019. Konsumsi beban listrik PT Pagilaran secara keseluruhan adalah sebesar 2.853.919,89 kWh/tahun. Khusus untuk konsumsi beban listrik pabrik produksi dan pengolahan adalah sebesar 657.104,90 kWh/tahun dengan sumber listrik konvensional PLN. Penelitian ini bertujuan untuk mendesain dan mengetahui unjuk kerja potensi energi listrik yang dapat dihasilkan PLTS rooftop menggunakan simulasi HelioScope sebagai rekomendasi penggunaan energi terbarukan. Dari hasil simulasi diperoleh potensi energi listrik yang dapat dihasilkan oleh PLTS rooftop adalah 629.840,80 kWh/tahun yang dapat memenuhi 95,85% kebutuhan beban listrik untuk pabrik produksi dan pengolahan teh dengan rasio kinerja sebesar 77,5%.Kata kunci: HelioScope, Photovoltaic, PLTS Rooftop, Rasio Kinerja, Tenaga Surya ABSTRACTThe tea plantation area of PT Pagilaran Batang, Central Java has an average radiation value of 5.30 kWh/m2/day throughout 2019 and an average of 4.66 kWh/m2/day in the span of 1997-2019. The electrical load consumption of PT Pagilaran is 2,853,919.89 kWh/year. Specifically for the electrical load consumption in the tea production and processing plants is 657,104.90 kWh/year with conventional electricity source from PLN. This study aims to design and determine the potential solar rooftop performance assessment of electrical energy that could be generated using the HelioScope simulation as the recommendation for applying renewable energy. Based on the simulation result, the potential of electrical energy that can be generated by PLTS rooftop is 629,840.80 kWh/year which could meet 95.85% of the electrical load consumption for the tea production and processing plants with performance ratio of 77.5%.Keywords: HelioScope, Photovoltaic, Solar Rooftop, Performance Ratio, Solar Power
Model Proses Pengolahan Air Laut Metode Reverse Osmosis memanfaatkan Sumber Energi Sinar Surya SIAHAAN, PERLUHUTAN; SINAGA, NAZARUDDIN; WINDARTA, JAKA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 10, No 3: Published July 2022
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v10i3.609

Abstract

ABSTRAKTeknologi membrane Cellulose Triacetate (CTA), Hollow Fiber (HF) dan Sel Surya Perovskite. Kemampuan membrane mereduksi air garam dan Perovskite mengonversi sinar surya. Model proses pemurnian air laut Reverse Osmosis (RO) menjadi air bersih di mana kebutuhan energi spesifik ditekan menggunakan Energi Dukung Turbin (EDT). Produksi air bersih kapasitas 3000 m3 per jam dengan kebutuhan energi spesifik (KES) 43,589.7 kWh. Efisiensi 50% KES kontribusi dari EDT dan membrane meredusi garam 99,5%. Kombinasi RO dan Perovskite serta didukung EDT efisiensi tinggi diperoleh dan dapat menurunkan tingkat gas emisi setara 1,547,048 ton CO2e per tahun.Kata kunci: air bersih, CO2, membrane, reverse osmosis, sel surya ABSTRACTTechnology of membrane is Cellulose Triacetate (CTA), Hollow Fiber (HF) and Perovskite Solar Cell. Membrane performance is to reduce of salt substance and Perovskite to convert irradiance. Model seawater purification process Reverse Osmosis (RO) converts into clean water however the requirement of specific energy is reduced which utilize of Energy Recovery Turbin (EDT). Production of clean water capacity 3000 m3 per hour require Specific Energy Consumtion (KES) 43,589.7 kWh of electrical energy. Efficiency 50% of KES is constribution of EDT and performance of membrane to reduce salt substance 99,5 %. The combination of RO and Perovskite as well as EDT has reached significant efficiency and the gas emissions is reduced to aproximatly 1,547,048 ton CO2e per year.Keywords: clean water, CO2, membrane, reverse osmosis, solar cell
Analisis Kondisi Drainase dalam Manajemen Risiko Pengelolaan Lereng Jalan Pamungkas, Goji; Huboyo, Haryono Setiyo; Windarta, Jaka
Jurnal Profesi Insinyur Indonesia Vol 2, No 6 (2024): JPII:
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpii.2024.25104

Abstract

Kestabilan lereng pasca konstruksi sangat ditentukan oleh besarnya gaya pendahan dibandingkan gaya pendorong. Salah satu gaya pendorong yang umum terjadi di wilayah tropis adalah curah hujan. Perkembangan perubahan iklim semakin mengarah pada perubahan trend curah hujan yang semakin lebat dalam waktu singkat. Pada lereng Jalan Tol Ruas XY, telah terjadi 30 kali kejadian longsoran selama 4 tahun terakhir. Untuk menanggulangi kejadian longsoran selanjutnya, maka dilaksanakan inspeksi sesuai dengan metode Geo Office Hongkong. Insepksi dilaksanakan di sepanjang 100 km jalan dengan durasi 2 bulan. Kegiatan inspeksi ini merupakan bagian dari Sistem Manajemen Lereng. Hasil Inspeksi tahun 2024 menunjukkan bahwa sejumlah 88 lereng telah mengalami erosi tingkat ringan hingga berat. Berkaitan dengan kondisi sistem drainase lereng, semua lereng mempunyai nilai kerentanan 8. Setelah kegiatan inspeksi selesai dilakukan dan diperoleh kondisi masing-masing lereng, maka dapat disusun strategi pencegahan kejadian longsor. Strategi pencegahan yang diusulkan yaitu pengendalian vegetasi, pembersihan saluran drainase dan perbaikan saluran. Pemantauan rutin saluran drainase baik pada kondisi biasa dan hujan ekstrim harus dilakukan untuk memastikan performa drainase tetap bekerja dengan optimal. Kegiatan pemeriksaan saluran drainase yang rutin sesuai dengan sistem manajemen lereng dapat membantu pengelola lereng untuk meminimalkan risiko instabilitas yang disebabkan aliran air hujan. Kata kunci: longsor, erosi, hujan, drainase, lereng AbstractThe stability of a slope at post-construction stage is largely depend on the resistance force of the soil to whitsand againts the driving force. One of the most common driving forces found in tropical climates is rainfall. The progression of climate change leads to the change of rainfall pattern with the occurrence of heavy precipitation in shorter periods of time. Over the past four years, 30 landslides have occurred on the XY Toll Road. To prevent further landslide, an inspection was conducted in accordance with the Hong Kong Geo Office Guide for drainage inspection and maintenance. The inspection was conducted in 2 months along 100 km of toll road. The inspection result in 2024 indicate that 88 slopes have undergone varying degrees of erosion, varies from mild to severe. Reffering to the inspection result on existing slope drainage condition, all slopes have a vulnerability value of 8. Once the inspection activities are completed and the condition of each slope is determined, a landslide prevention strategy can be developed. Proposed prevention strategies include vegetation control, drainage channel cleaning, and channel repairs. It is essential to conduct routine monitoring of the drainage channels under both normal and extreme rainfall conditions to guarantee optimal drainage performance. Regular inspections of drainage channels as stated in the slope management system can help slope managers to minimize the risk of instability caused by rainwater.Keywords: landslide, erosion, rainfall, drainage, slope 
Metode Pemilihan Tindak Lanjut Pemeliharaan Pemutus Tegangan (PMT) 150 kV Berdasarkan Nilai Condition Assesment Factor (CAF) dan Certainty Level (CL) Yulianto, Eko; Sofwan, Aghus; Windarta, Jaka
Jurnal Profesi Insinyur Indonesia Vol 2, No 4 (2024): JPII
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpii.2024.24582

Abstract

Kebutuhan pelanggan listrik di Indonesia untuk mendapatkan keandalan pasokan listrik semakin besar dengan semakin meningkatnya kegiatan ekonomi yang bergantung kepada pasokan listrik. Dalam memastikan keandalan pasokan listrik, salah satu lokasi yang sangat penting untuk dilakukan pengujian rutin adalah gardu induk 150 kV, di mana salah satu material transmisi utamanya Pemutus Tegangan (PMT) memiliki fungsi sebagai saklar sehingga memerlukan evaluasi kondisi kesehatannya. Salah satu metode evaluasi kesehatan PMT 150 kV yang dikembangkan [A11] oleh PT PLN Divisi Transmisi berdasarkan data hasil pengujian rutin dinamakan Condition Assessment Factor (CAF) serta Certainty Level (CL). Hasil dari nilai CAF menunjukkan kondisi kesehatan keseluruhan dari PMT yang dinilai, berdasarkan standar PLN digunakan batasan nilai 1-9 di mana nilai 1 kondisi buruk dan nilai 9 kondisi sangat baik. Untuk hasil nilai CL menggunakan satuan persentase dengan nilai 100% merupakan kondisi seluruh pengujian terpenuhi sedangakan nilai di bawahnya menunjukkan beberapa pengujian belum dilaksanakan. Kombinasi antara nilai CAF dan CL akan digunakan sebagai pengambilan keputusan dalam menghasilkan bentuk tindak lanjut yang tepat pada proses pemeliharaan PMT 150 kV. Kata kunci: condition assessment factor, pemutus tegangan, certainty level, pemeliharaan
The Analysis of Changes in Calorific Value of Coal in the Coal Flow Coal Feeder and Net Plant Heat Rate (NPHR) Djaeni, Mohammad; Windarta, Jaka; Muqorrobin, Rifqi
ASTONJADRO Vol. 14 No. 1 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i1.18136

Abstract

This study to determine the effect in the difference of coal calori value on power plants. Currently, coal-fired power plants dominate power plants in Indonesia with 42.38%. With the dominance of coal-fired power plants, the need for coal in Indonesia remains high. In the electricity production process, calori value is an important in the electricity production process. This study discusses the effect of coal on power plants. In this study, coal received two types of treatment, namely by heating with sunlight and oven. Then in this study, research was conduct on the calori value of coal on several parameters such as Specific fuel consumption (SFC), coal flow, boiler efficiency and NPHR. From the results of the research conduct, the drying process in the sun for 10 days can reduce the water content by 28% and reduce the weight of coal from 150 grams to 108 grams. Changes in calories due to a reduction in the water content value in coal by 28% to 5414 kcal / kg. In the coal combustion test, the calorific value of coal is inversely proportional to the NPHR value and coalflow of the PLTU.
Analytical Solution in the (I-V) Characteristic Curves Calculation of the Corona Plasma Discharge Using the Capacitance Model Wardaya, Asep Yoyo; Muhlisin, Zaenul; Suseno, Jatmiko Endro; Setiawati, Evi; Hadi, Susilo; Windarta, Jaka
Journal of Physics and Its Applications Vol 7, No 3 (2025): August 2025
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v7i3.25270

Abstract

This research aims to calculate thoroughness among data points and analytical simulation curves in discussing corona discharges' (I-V) characteristics. The electrode construction used is the twin towers with dividing angles to the plane (TTDA-P) model in air, with negative DC polarity. An asymmetrical electrical CCP model in the electrode design uses research variations, including active electrode center clamp angles of q = 300, 450, and 600 and active and passive electrode distances (d) of 0.002 m, 0.005 m, and 0.008 m. The simulation curve comes from the analytical formulation of the reduced capacitance type (inserting a multiplying factor k to the sharp corners of the active electrode), with the simulation program being a Python GUI program. The experimental results produced an appropriate error value (t-test value £0.05) and a high percentage of tangent points value. The best curve was achieved at q = 450 and d = 0.008 m, with a t-test value of 0.0313 and the highest percentage of significant tangent points of 92.31%. For all variations q, there is a tendency that the smaller the value of d (the gap length among two electrodes), the greater the deviation distance between the simulation curve and the data points.
Analysis of the Influence of Air Conditioning System on the Assessment Rating of Green Buiding Certification "Greenship Existing Building" Bakhtiar, Bakhtiar; Windarta, Jaka; Prianto, Eddy
Journal of Social Research Vol. 4 No. 10 (2025): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v4i10.2828

Abstract

This study aims to analyze the influence of the air conditioning system on achieving the Green Building certification rating for Greenship Existing Building PT Pamapersada Nusantara Head Office. The air conditioning system is a key aspect in assessing green building performance, particularly in the categories of energy efficiency, indoor air quality, and thermal comfort. The research method used was a descriptive quantitative approach with secondary data analysis in the form of energy audit documents, electricity consumption measurements, and technical data from the HVAC system installed in the building. The results show that the air conditioning system significantly contributes to points earned in the Energy Efficiency and Conservation (EEC) and Indoor Health and Comfort (IHC) categories. The implementation of an energy-efficient HVAC system, the use of high-efficiency equipment, and sound operational management can increase the efficiency of electrical energy consumption to the required limit. Indoor air quality is maintained according to standards, which positively impacts the comfort and productivity of building occupants. The results confirm that the air conditioning system is a strategic factor in achieving green building certification and serves as an important foundation for energy management and environmental sustainability efforts in existing buildings.
Co-Authors Aghus Sofwan Albar, Syarief Arunizal, Sultan Asep Yoyo Wardaya B. Y. Syah, Rahmad Bakhtiar Bakhtiar Bambang Sudarsono Berkah Fajar T.K, Berkah Fajar Denis Denis Dyah Hesti Wardhani Eddy Prianto EKO YULIANTO Elshaarani, Tarig Evi Setiawati Goji Pamungkas, Goji Habib Satria Haryono Setiyo Huboyo Hastanto, Ari Irwangsa, Ditza Pasca Jatmiko Endro Suseno Mardandi, Brian Taufik Miraj, Fauzan Rafi Mohammad Djaeni Muqorrobin, Rifqi Nazaruddin Sinaga Nugroho, Agung Prihantoko, Kukuh Eko Rahman, Gifhar Rega, Muhammad Sulthon Novera Riva Amrulloh Sapto Nisworo Sensa Ritzky Cinicy, Oky Setiabudi, Hino SIAHAAN, PERLUHUTAN Singgih Saptadi Susatyo Handoko Susilo Hadi, Susilo Zaenul Muhlisin