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PROGRAM STUDI FISIKA FAKULTAS MATEMATIKA ILMU PENGETAHUAN ALAM DAN KEBUMIAN UNIVERSITAS NEGERI MANADO Jl. Kampus Unima, Kel. Koya, Kec. Tondano Selatan, Minahasa, Indonesia
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Jurnal FisTa : Fisika dan Terapannya
Published by Universitas Negeri Manado
ISSN : -     EISSN : 27471691     DOI : https://doi.org/10.53682/fista.xxxx.xxx
Core Subject : Science, Engineering,
Astronomy Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics
Jurnal FisTa : Fisika dan Terapannya merupakan salah satu Jurnal Nasional dalam bidang Ilmu Fisika dan Terapannya di bawah pengelolaan Program Studi Fisika Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado. Jurnal FisTa : Fisika dan Terapannya memiliki nomor eISSN 2747-1691. Jurnal FisTa : Fisika dan Terapannya diterbitkan pertama kali pada tahun 2020. Hal ini dilakukan, untuk merespon para mahasiswa, dosen dan juga peneliti di bidang Fisika dan Terapannya untuk dapat membagi hasil penelitiannya dalam bentuk artikel ilmiah. Ruang lingkup artikel dalam Jurnal FISTA Fisika dan Terapannya adalah Ilmu Fisika dan Terapannya, diantaranya terkait dengan topik : Fisika Material; Fisika Teori; Fisika Material Lunak; Fisika Komputasi; Fisika Instrumentasi; Astronomi; Fisika Koloid; Geofisika; Elektronika: Fisika terapan terkait lainnya.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 103 Documents
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Perancangan dan Analisis Pembangkit Listrik Tenaga Surya di Gedung Fakultas Teknik UKI Toraja Kurniawan, Reskyel; Pineng, Martina; Pawarangan, Ishak
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 1 (2025): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i1.443

Abstract

Solar energy is one of the alternative energy sources to produce electrical energy which is included in renewable energy and is environmentally friendly with low pollution levels. The PLTS system is one of the generating systems that utilise sunlight energy to produce electrical energy and has the potential to be developed in Indonesia. In this research, the design and analysis of the PLTS system in the UKI Toraja Faculty of Engineering building whose electrical energy supply still depends entirely on PLN. The solar modules needed are 92 panels with a capacity of 200 Wp each panel, and the inverter used is 1 piece with a capacity of 1000V. Economic analysis which includes the value of the parameter needs in the Faculty of Engineering building of the Universitas Kristen Indonesia Toraja with an initial investment of Rp.290,910,000, maintenance and operational costs of Rp.2,909,100, life cycle costs of Rp.315,409,567.47, and annual cash inflows of Rp.37,479,568.75, investment feasibility analysis which includes a net present value of Rp.346,199.22, a profitability index of 1.00119, a discounted payback period of 8 years and 5 months, and an internal rate of return of 11.020%.
Pemahaman Kontur Wilayah Kecamatan Loloda Utara Berbantuan Aplikasi QGIS Fitrianingrum, Aufa Maulida; Sibu, Nofrianto
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 1 (2025): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i1.454

Abstract

Penelitian ini bertujuan untuk menganalisis kontur pada wilayah Kecamatan Loloda Utara menggunakan aplikasi Sistem Informasi Geografis (SIG) berbasis QGIS. Penelitian terdiri dari empat tahapan yaitu pengumpulan data, pengolahan data dan pemetaan, analisis data, serta penarikan kesimpulan. Jenis penelitian yang digunakan adalah deskriptif kualitatif melalui analisis interpretasi visual peta kontur dan kelerengan. Sumber data utama yang digunakan adalah DEM dan citra SRTM. Hasil analisis menunjukkan bahwa wilayah timur Loloda Utara didominasi oleh lereng dengan kelas curam hingga sangat curam dan lebih datar pada wilayah barat yang dekat dengan garis pantai. Rentang elevasi wilayah ini berkisar antara 0 hingga 750 mdpl. Peta kelerengan yang dihasilkan dapat dimanfaatkan untuk mendukung perencanaan tata ruang, identifikasi zona rawan bencana, serta pengelolaan sumber daya berbasis karakteristik fisik wilayah.
Simulasi Efek Rumah Kaca dalam Skala Laboratorium: Analisis Kenaikan Suhu Menggunakan MATLAB Gahansa, Tesalonika Yakomina; Kamaruddin, Kamaruddin; Rende, Jeane Cornelda; Silangen, Patricia Mardiana; Londa, Treesje Katrina
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 1 (2025): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i1.460

Abstract

This study aims to simulate and analyze temperature rise due to the greenhouse effect through a simple experiment and numerical modeling using MATLAB. Two systems—a sealed glass jar (simulating a greenhouse gas-trapping atmosphere) and an open jar (control)—were exposed to sunlight for 30 minutes, with temperature recorded at 5-minute intervals. Experimental results showed that the sealed jar experienced a higher temperature increase (24°C to 28.5°C) compared to the open jar (24°C to 28°C), demonstrating heat trapping. Data were analyzed using MATLAB's Curve Fitting Toolbox for regression modeling and graphical visualization. Numerical simulations exhibited strong consistency with experimental data, confirming the model's accuracy in predicting temperature trends. The study concludes that MATLAB is an effective computational tool for simulating physics phenomena related to global warming while highlighting the urgency of environmental mitigation. These findings can serve as a foundation for developing applied physics experiments or small-scale climate models.
Karakterisasi Arang Tempurung Kemiri Hasil Aktivasi dengan H3PO4-HNO3 dan Kinetika Adsorpsi Ambaa, Nelce Dianty; Rampe, Meytij Jeane; Lumingkewas, Sonny
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 1 (2025): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i1.462

Abstract

Tempurung kemiri (Aleurites moluccana (L.) Willd.) merupakan limbah dari pengolahan biji kemiri yang berpotensi digunakan sebagai bahan dasar dalam pembuatan arang maupun karbon aktif. Penelitian ini bertujuan untuk mengkaji komposisi unsur dan kinetika adsorpsi dari arang tempurung kemiri. Rangkaian penelitian mencakup proses pirolisis, aktivasi serta analisis komposisi unsur menggunakan EDS (Energy Dispersive X-Ray Spectroscopy) dan penentuan kinetika adsorpsi arang tempurung kemiri. Hasil pengujian EDS, komposisi unsur karbon (C) tertinggi adalah arang tempurung kemiri hasil aktivasi dengan H3PO4-HNO3 sebesar 86,7%. Kinetika adsorpsi arang tempurung kemiri hasil aktivasi dengan H3PO4-HNO3 terhadap CH3COOH 1 N pada penelitian ini mengikuti orde reaksi tiga sebesar R² = 0,8284 karena nilai R2 dari grafik orde tiga paling mendekati 1.
Pemetaan Potensi Pembangkit Listrik Tenaga Surya Rooftop pada Atap Gedung Perkantoran di Kabupaten Toraja Utara Stefanus Duma; Yusri Ambabunga; Ishak Pawarangan; Lalu Mohammad Junaidi Idris
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 1 (2025): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i1.464

Abstract

A solar power plant or PLTS is a power generation system that utilizes sunlight as an energy source. PLTS power plants have the potential to be developed in Indonesia due to the working principles of PLTS which are environmentally friendly and have a low level of pollution and are included in renewable energy. In this study, a mapping of the potential of PLTS was carried out in the office building of the North Toraja Marante Joint Service Office and the North Toraja Panga' Regent's Office, where in this study the total roof area of ​​the North Toraja Marante Joint Service Office building was 2,595,770545 m2 and the Office building The Regent of North Toraja Panga' resulted in a roof area of ​​4238.563246 m2 from the calculated roof area data, the PV modules that can be installed on the North Toraja Marante Joint Service Office building are 116 pcs and on the North Toraja Panga' Regent Office building the potential is 193 pcs. So that it can be obtained PV out in the North Toraja Marante Joint Office building of 0.052 MWh per day and 18,937 MWh per year and PV out in the North Toraja Panga' Regent's Office building of 0.087 MWh per day and 31.484 MWh per year. The results of this study are expected to be developed for further research to calculate the potential of PV mini-grid.
Pemanfaatan Karbon Aktif dari Limbah Kulit Pisang Kepok (Musa Paradisiaca L) sebagai Elektroda Superkapasitor Kapantow, Khariezmathika Ester; Rampengan, Alfrie Musa; Tumimomor, Farly Reynol; Taunaumang, Heindrich; Umboh, Sixtus Iwan
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i2.473

Abstract

In recent years, attention to renewable energy has increased, especially in electrical energy. One of the emerging technologies in supporting electrical energy storage is supercapacitors. This study aims to determine the effect of variations in the concentration of KOH solution on the current and voltage characteristics produced by supercapacitor electrodes made from activated carbon from kepok banana peel waste (Musa Paradisiaca L). By using dehydration method 80°C, carbonization at 400°C, chemical activation with 5M, 6M, and 7M KOH solution, and physical activation at 750°C. The results showed that the concentration of KOH activator from 5M, 6M, to 7M increased the electric voltage to 0.641 V, 1.078 V, and 1.448 V and electric current to 10.3 mA, 11.6 mA, and 28.5 mA, respectively. However, the density and conductivity values showed different patterns, with density values of 1.2446 A/
Pemanfaatan Karbon Aktif dari Cangkang Kemiri sebagai Elektroda Superkapasitor Kawulur, Kezia; Taunaumang, Heindrich; Umboh, Sixtus Iwan; Bujung, Cyrke Adfie Netty; Kamaruddin
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i2.475

Abstract

The energy crisis is one of the major challenges facing the world today, triggered by over-reliance on fossil energy sources, rapid population growth, and the threat of climate change. One technology that attracts attention is supercapacitors. The purpose of this study was to determine the effect of carbon activation using KOH with varying concentrations on electrical conductivity as a supercapacitor electrode. By using dehydration method, carbonization at 500℃. The chemical activation process is treated with variations in KOH concentration of 6M, 7M, 8M with physical activation in a furnace at 750℃. The test results of conductivity and density values show that the comparison with the increase in KOH concentration results in an increase in conductivity of 0.1012 S/m, 0.1694 S/m, and 0.3282 S/m. Accompanied by a decrease in density of 9.8810 A/
Pengaruh Proses Pembuatan Terhadap Karakteristik Minyak Kelapa Lestari, Endang Putri; Gugule, Sanusi; Fatimah, Feti; Maanari, Chaleb
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i2.493

Abstract

Coconut oil is one of the vegetable oils widely used in the food, cosmetic, and pharmaceutical industries due to its high content of saturated fatty acids, particularly lauric acid. This study was conducted on the effect of coconut oil processing methods on the characteristics of the resulting coconut oil. Three processing methods were applied: non-heating, fermentation, and direct heating. A transesterification step was carried out to determine the fatty acid profile and its derivatives. The characterization of coconut oil compounds included measurements of density, acid value, peroxide value, and ester value, as well as analysis of fatty acid compounds using Gas Chromatography-Mass Spectrometry (GC-MS). The results showed that the best method for producing coconut oil was the non-heating process, with the following physicochemical properties: yield of 13.5%, acid value of 0.20 mg KOH/g, peroxide value of 2.00 meq/kg, and ester value of 223.28 mg KOH/g. The main components identified from the transesterified coconut oil were dodecanoic acid methyl ester (methyl laurate), methyl tetradecanoate, and hexadecanoic acid methyl ester.
Identifikasi Mineral Batuan Mata Air Panas Bukit Kasih Kanonang Menggunakan SEM-EDX dan FTIR Sorongan, Christina; Donny Royke Wenas; Jeilen Gabriela Nikita Nusa; Heindrich Taunaumang; Vistarani Arini Tiwow
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i2.469

Abstract

North Sulawesi has considerable geothermal potential as evidenced by the emergence of several types of geothermal manifestations, one of which is located in Kanonang village, precisely on the hill of Kasih Kanonang. The purpose of this research is to determine the rock structure and type of rock contained in the rock in the manifestation area located on the hill of love kanonang. The method to be used in this research is to analyze in the laboratory using SEM-EDX tools and FTIR tools. The results showed that the mineral content and mineral types of geothermal manifestations of hot springs in kanonang love hill have 3 elements namely Oxygen, Silica, and Aluminum with a percentage content of O 66.60%, Si 31.25%, and Al 0.73%.
Evaluasi Akurasi Metode Arus Cabang Melalui Pendekatan Teoritis, Simulasi EWB, dan Pengukuran Eksperimental Duri', Ariyen; Pineng, Martina; Martati, Martati
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i2.513

Abstract

This study aims to evaluate the accuracy of the branch current analysis method through three approaches: theoretical calculation, simulation using Electronics Workbench (EWB), and experimental measurement using a digital multimeter. The test circuit consists of two 10 V DC voltage sources and three resistors (R1 = 2200 Ω, R2 = 2200 Ω, R3 = 1000 Ω) forming two loops with three branch currents (I1, I2, I3). The theoretical analysis was performed by applying Kirchhoff’s Current Law (KCL) and Kirchhoff’s Voltage Law (KVL), while the simulation was conducted in EWB software with the same configuration. Direct measurements were obtained by connecting the multimeter in series with each branch. The results show that the simulated current values closely match the theoretical calculations, with a maximum relative error of 0.0084% and an accuracy of 99%. Meanwhile, the experimental measurements exhibit larger deviations compared to the simulation, ranging from 1% to 2 %, with accuracies between 97% and 98%. Overall, the study demonstrates that the branch current method produces consistent results between theoretical calculations and simulations, while the experimental measurements show deviations that remain within acceptable limits due to component tolerances, connection resistance, and instrument accuracy.

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