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All Journal Journal of Electrical, Electronic, Information, and Communication Technology (JEEICT)
Irwan Iftadi
Sebelas Maret University
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering

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Plasma Characteristics of Under-water Arc Discharge in Nanoparticle Fabrication Athaya Cantia Putri; Miftahul Anwar; Irwan Iftadi; Agus Ramelan; Feri Adrianto; Teguh Endah Saraswati
Journal of Electrical, Electronic, Information, and Communication Technology Vol 4, No 1 (2022): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.4.1.61081

Abstract

Synthetic nanoparticles are the process of making particles with a size of less than 100 nm and changing the properties of the material so that it can be improved to improve the usability of new products. One method that can be used is the arc discharge method in water, which is a synthetic method of nanoparticles, which is very simple because it does not require complicated equipment. This study uses graphene as an electrode, which is then immersed in water and mounted horizontally. Current and voltage monitoring is carried out during the arc discharge process using a Hall-based current sensor and the voltage is measured directly between the two electrodes. Variations in input current of 10A, 40A, 70A, and 100A affect the arc formed, current and voltage, and ionization energy. Monitoring with OES is also carried out to determine the shape of the plasma, and the wavelength when the arc occurs. The results obtained that the current has more effective and optimal results in synthesizing nanoparticles.
Energy Production Estimation and Data Monitoring System In 300 kWp Rooftop Solar Power Plant XYZ, Inc. Geovani Rahmad Illahi; Irwan Iftadi; Agus Ramelan
Journal of Electrical, Electronic, Information, and Communication Technology Vol 4, No 1 (2022): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.4.1.61156

Abstract

One of the greatest potential for renewable energy comes from solar energy. In Indonesia, the potential for solar energy can reach 3.294 GWP. This amount is very large when compared to other renewable energy production potentials. However, the problem with the solar power plant system is that the production of energy produced is influenced by time, weather, location, and the efficiency of the system can affect energy. This study discusses from the design process, estimation of energy production, and monitoring data on PV mini-grid. The calculation is done by estimation using PVsyst software. The monitoring system is made based on the specifications used. The design of this system is made to record data by measuring performance ratio and also calculating the efficiency of the system.
Technical Design and Financial Projection of Solar Power Plant on Grid 119.5 kWp in Sendang Sari Hotel Kresna Pandu Pratama; Irwan Iftadi; Agus Ramelan
Journal of Electrical, Electronic, Information, and Communication Technology Vol 5, No 1 (2023): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.5.1.68869

Abstract

The productivity of a solar power plant is influenced by environmental factors such as the amount of irradiation captured, the amount of dust attached to it, and the ambient temperature. Therefore, it is very important to pay attention to the technical design of solar power plant, such as the installation location, tilt angle, and number of solar modules per series. In addition to a good technical design, it is also necessary to pay attention to its economic aspects, because solar power plant requires high costs, so it is necessary to make financial projections for the next few years, so that the economic value of the technical design can be determined. At this writing, the location is taken at Sendang Sari Hotel with coordinates -6.905910357088127, 109.72448291981084, installed power is 120kVA with the aim of the installation is for savings without exporting power to the grid. Based on the load analysis, the designed PLTS capacity is 119.5 kWp. Then, a simulation was carried out using the Helioscope which produced an energy yield of 161.8 MW with a performance ratio of 82.1%. Based on the simulation, a 25-year financial projection is obtained with an NPV of 580,943,546 IDR, an IRR of 6.09%, a payback period of 13.89 years, and an LCOE of 735.4 IDR/kWh.
Co-Authors Agus Ramelan Athaya Cantia Putri Feri Adrianto Geovani Rahmad Illahi Kresna Pandu Pratama Miftahul Anwar Teguh Endah Saraswati