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All Journal Jurnal SPEKTRUM Innovative: Journal Of Social Science Research
I Nyoman Budiastra
Jurusan Teknik Elektro, Fakultas Teknik, Universitas Udayana
Humanities Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Public Health Other

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ANALISIS VARIASI TRANSMISI GEAR TERHADAP OUTPUT DAYA LISTRIK PADA PROTOTYPE PEMBANGKIT LISTRIK TENAGA PIKOHIDRO MENGGUNAKAN TURBIN TURGO Hary Putra Darma, I Nyoman; Budiastra, I Nyoman; Arta Wijaya, I Wayan
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p3

Abstract

The design of the Picohydro Power Plant at the Kanto Lampo Waterfall tour was carried out to meet the electricity demand in the form of lighting in the area. Based on a survey that has been conducted, the access road from the parking lot to the waterfall is about 150 meters away and does not yet have adequate lighting. The waterfall has a height of 15 meters, so the design of the PLTPH prototype will use a turgo turbine to maximize the power output of the generator which is distributed to the lighting. This research was conducted to determine the effect of gear variations on rotational speed, torque, voltage, current and power produced by the PLTPH prototype. The test method used is direct testing on the prototype. The data obtained, then graphed the influence of gear variations with the parameters tested. All parameters tested get the highest rotation results by using 2 nozzles of 752.2 rpm. In the gear transmission test the highest output results were obtained at a ratio of 4:1 and the power generated was 48.70 watts.
RIVIEW SISTEM PENGOLAHAN AIR PDAM TIRTA MANGUTAMA BADUNG Muhamat, Oscar; Satya Kumara, I Nyoman; Budiastra, I Nyoman
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

Water treatment in PDAM is a process in providing clean water supplies for the needs of the community of the district. The quality of the water produced must meet health and environmental standards to ensure that the water consumed is safe and decent for the user. This investigation aims to conduct a review of the water treatment system with a focus on the process of treatment of clean water ranging from raw water taken from the water tank to clean water that can be used by consumers. This process takes place at the intake where the raw water is sucked with two turbine pumps. Then the water is drained to the WTP (Water Treatment Plant) where the wTP is the main clean water treatment building. On the way to WTP there is a chemical process where water is mixed with poly aluminium chloride (PAC) fluid and chlorine to kill bacteria and purify the water. There are several parts of the room that process into clean water thats. the flokuator, then the sedimentation process, after the sedmentation process is continued to the filtration/filter process, in this process the filter uses silica sand as its filter so that the water is free from the dirt of the Sedimentation result, then after being clean water will enter the shelter or reservoir to continue to the customer's distribution system assisted by the booster pump.
Analisis Kelayakan Investasi Sistem PLTS Atap pada Gedung Lecture Building Universitas Udayana Yoga, Ida Bagus Savitar Dharma; Sukerayasa, I Wayan; Setiawan, I Nyoman; Janardana, I Gusti Ngurah; Budiastra, I Nyoman; Suartika, I Made
Innovative: Journal Of Social Science Research Vol. 5 No. 4 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i4.20982

Abstract

The use of renewable energy, especially Solar Power Plants (PLTS) is an alternative solution in facing increasing electricity needs and limited conventional energy supply. The Udayana University Lecture Building, which has a high level of operation during the day, is the object of designing a rooftop solar power plant system with an on-grid configuration equipped with a Battery Energy Storage System (BESS). This study aims to evaluate the feasibility of investing in the solar PV system to be designed. The analysis methods used include the calculation of Life Cycle Cost (LCC), Cost of Energy (CoE), Capital Recovery Factor (CRF), Net Present Value (NPV), Internal Rate of Return (IRR), Discounted Payback Period (DPP), and Profitability Index (PI). The results of the investment feasibility analysis showed that the initial investment of IDR 1,298,931,811 resulted in an NPV value of IDR 123,306,233, IRR of 21.01%, DPP for 21.9 years, and PI of 1.09. Thus, this project was declared financially feasible to be implemented.
Perancangan PLTS Atap di Gedung Lecture Building Universitas Udayana Sihombing, Jupael; Sukerayasa, I Wayan; Setiawan, I Nyoman; Janardana, I Gusti Ngurah; Budiastra, I Nyoman; Suartika, I Made
Innovative: Journal Of Social Science Research Vol. 5 No. 4 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i4.21043

Abstract

The growing demand for electricity in the Province of Bali is still largely dominated by the use of fossil fuels and coal. This reliance on conventional energy sources contributes to carbon dioxide (CO₂) emissions and greenhouse gases, which in the long term have a negative impact on the environment. To reduce this dependency, the utilization of renewable energy sources such as Solar Power Plants (PLTS) offers an effective and environmentally friendly solution. The Lecture Building at Udayana University was selected as the study object due to its relatively high electricity consumption. The PLTS system design for this building was based on the available roof area, utilizing all four roof sides. Each side is equipped with 32 solar modules rated at 670 Wp per unit, one inverter with a capacity of 25 kW, and 16 battery units each with a capacity of 200 Ah. The system design was simulated using PVSyst software, and with a total installed capacity of 85.76 kWp, the system is capable of generating approximately 515.8 kWh of electricity per day.
Audit Energi pada Gedung Lecture Building Universitas Udayana Nugraha, I Komang Krisna Bayu; Sukerayasa, I Wayan; Setiawan, I Nyoman; Janardana, I Gusti Ngurah; Budiastra, I Nyoman; Suartika, I Made
Innovative: Journal Of Social Science Research Vol. 5 No. 4 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i4.21045

Abstract

Increasing electrical energy consumption in the education sector requires efforts to save on campus buildings. This study aims to identify efficiency opportunities in the Lecture Building of Udayana University using the walk-through audit method. Measurements were made on lighting, air conditioning (AC), elevators, and pumps using lux meters, infrared thermometers, and power quality analyzers. The results showed that the biggest savings came from the air conditioning system of 22,965 kWh/month (15.47% efficiency) through temperature and operating time adjustments. The energy consumption intensity (IKE) value was recorded at 54,145 kWh/m²/year for one floor and 18,048 kWh/m²/year for three floors, far below the standard of 240kWh/m²/year. The other system generates technical recommendations to support the sustainable implementation of green campuses.
Co-Authors Hary Putra Darma, I Nyoman I Made Suartika I N Satya Kumara I Nyoman Setiawan I Wayan Arta Wijaya I Wayan Sukerayasa Janardana, I Gusti Ngurah Muhamat, Oscar Nugraha, I Komang Krisna Bayu Sihombing, Jupael Yoga, Ida Bagus Savitar Dharma