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All Journal Jurnal Ilmiah Mandala Education (JIME) SOSCIED Sciening : Science Learning Journal Charm Sains : Jurnal Pendidikan Fisika Jurnal FisTa : Fisika dan Terapannya
Jeilen Gabriela Nikita Nusa
Program Studi Fisika, Fakultas MIPA, Universitas Negeri Manado
Arts Humanities Astronomy Education Electrical & Electronics Engineering Energy Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences

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Journal : Jurnal FisTa : Fisika dan Terapannya

 1 
PROFIL VERTIKAL HANTARAN PANAS BAWAH PERMUKAAN MANIFESTASI PANAS BUMI DI BAGIAN BARAT GUNUNG TAMPUSU Natalia Pandoh; Heinrich Taunaumang; Jeilen Gabriela Nusa
Jurnal FisTa : Fisika dan Terapannya Vol 2 No 1 (2021): 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.v2i1.98

Abstract

Indonesia is an area that has enormous geothermal potential. In North Sulawesi itself, there are three geothermal locations, including Lahendong, which is the first geothermal field in Eastern Indonesia to produce electricity, then other locations, namely in Tompaso and Kotamobagu. Strategically, Tampusu Mount is located between Tondano Lake and Linow Lake where the two lakes are the largest types of manifestation in North Sulawesi. This manifestation occurs due to the conduction of heat transfer from subsurface rock to surface rock. This study aims to analyze the distribution of temperature at shallow depths to predict the vertical profile of the thermal conductivity of geothermal manifestations in the western part of Tampusu Mount. By using surfur 11 software, it was found that the subsurface temperature distribution at shallow depths was dominated by high temperatures ranging from 30ºC - 43ºC. The lowest temperature ranges from 20ºC - 23ºC and the vertical profile of subsurface heat conduction in the western part of Tampusu Mount is not evenly distributed in each soil layer, because the temperature data obtained varies.
ANALISIS DISTRIBUSI TEMPERATUR PERMUKAAN TANAH DI WILAYAH POTENSI PANAS BUMI DI SEKITAR SESAR PALU KORO MENGGUNAKAN TEKNIK PENGINDERAAN JAUH Gregorius Siga; Cyrke Bujung; Jeilen Gabriela Nusa
Jurnal FisTa : Fisika dan Terapannya Vol 2 No 2 (2021): 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.v2i2.136

Abstract

As one of the countries in the tropical region, Indonesia is blessed with various energy resources, one of which is geothermal energy. The existence of geothermal sources on the surface is reflected in the appearance of manifestations to the earth's surface, namely hot springs, fumaroles, etc. This study described the distribution of soil surface temperature to determine the surface temperature and the direction of the surface temperature opening around the Palu Koro Fault, Central Sulawesi. This study used remote sensing methods with thermal infrared channels recorded in 2015, 2017, 2018, 2019, and 2020. The results showed that the ground surface temperature in the geothermal potential area ranges from 31,5501°C - 38,8913°C, and the direction of the temperature opening is in the northwest to the southwest to the Southeast and is getting closer to the Palu Koro Fault.
PENGARUH PERUBAHAN BEBAN TERHADAP EFISIENSI GENERATOR DI UNIT 2 PLTP LAHENDONG Mince Manguma; Armstrong Sompotan; Jeilen Nusa
Jurnal FisTa : Fisika dan Terapannya Vol 2 No 2 (2021): 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.v2i2.139

Abstract

Indonesia is a country that is located on the ring of fire or a volcanic route that is rich in geothermal potential. Geothermal is a renewable resource that is environmentally friendly by utilizing magma from the bowels of the earth. PLTP Lahendong unit 2 is a generating unit located in the city of Tomohon, North Sulawesi, which is capable of generating 20 MW of electrical energy. In a generator one of the most important components is the generator. There are many problems that can affect the work of the generator, for example, the reduced efficiency of the generator. Declining efficiency can affect the electrical energy that is flowing not optimally due to generator losses, and a lot of electricity is lost because of this. Therefore, it is necessary to analyze the efficiency of the generator to see whether or not the effect of the load generated by the generator has an effect on the efficiency of the generator. The results of the study which were then analyzed for 14 days between 09:00 and 21:00 obtained the calculation results which were then analyzed that the lowest load value generated by the generator was 12 MW with generator efficiency of 72% and the highest load value was 19 MW with efficiency of 93% and obtained an average load of 16MW with an efficiency difference of 21%. This shows that the value of the load generated by the generator affects the efficiency of the generator. From the results above, it can be recommended to the related company for further action.
Pola Gradien Temperatur Bawah Permukaan Dangkal Manifestasi Panas Bumi Desa Noongan Tiga Kabupaten Minahasa Bethrany F. Landung; Donny R. Wenas; Jeilen G. N. Nusa; Cyrke A. N. Bujung
Jurnal FisTa : Fisika dan Terapannya Vol 3 No 2 (2022): 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.v3i2.207

Abstract

Geothermal is one of the natural resources that has great potential to be used as a renewable energy. The existence of geothermal resource on the surface is reflected by the presence of the geothermal manifestations on earth surface. This research was conducted to map the shallow subsurface temperature and determine the temperature gradient pattern of the geothermal manifestation in Noongan Tiga Village, Minahasa. This research uses observation method by measuring the temperature at the depth of 3 cm, 9 cm, and 15 cm in the morning, daytime, and the afternoon at 10 different points. The results showed that in that in the morning the temperature average reached 42,03 0C at the depth of 3 cm, 50,09 0C at the depth of 9 cm, and 60,26 0C at the depth of 15 cm. In the daytime, the temperature average rises to 59,2 0C at the depth of 3 cm, 66,01 0C at the depth of 9 cm, and 76,16 0C at the depth of 15 cm. While in the afternoon the temperature average reaching 41,28 0C at the depth of 3 cm, 49,46 0C at the depth of 9 cm, and 59,38 0C at the depth of 15 cm. The temperature gradient obtained shows an increase in temperature where the deeper you go, the temperature increases, with a linear temperature gradient pattern to the northeast.
Analisis Karakteristik Tipe Fluida Mata Air Panas Di Hutan Pinus Lahendong Dengan Menggunakan Spektrofotometri Jouhari Wote; Rolles Nixon Palilingan; Jeane Rende; Jeilen G. N. Nusa
Jurnal FisTa : Fisika dan Terapannya Vol 4 No 1 (2023): 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.v4i1.240

Abstract

Pine Forest is one of the tourist attractions in Lahendong Village, which has geothermal manifestations in the form of hot springs, which shows that the area has geothermal potential. The purpose of this study was to determine the type of fluid manifested by hot springs in the Pine Forest using geochemical methods. The results of this study indicate that the temperature at the manifestation is 40°C while the degree of acidity of the pH of hot water has a value of 4 which indicates the acidity level of hot water is acidic. The type of fluid that exists in the manifestation area of hot water in the Pine Forest is the type of fluid sulphate water and sulfate water is a fluid that is formed at shallow depths and is formed as a result of the condensation process of geothermal gas towards near the surface. This is because the results of chemical analysis show that the element SO4 is the most dominant element and contains SO4 gas. Hot water that has a sulfate type is water that is formed at shallow depths and is formed as a result of the process of condensing geothermal gas towards near the surface. The geothermal gas with gas content (water and carbon) is basically dissolved in the fluid content which is located in the deep zone but separated from the chloride water. Sulphate water is usually at the boundary and not far from the main upflow zone.
Analisis Keberadaan Manifestasi Panas Bumi Terhadap Keseimbangan Lingkungan Sekitar Desa Talawaan Bantik Angelika Kristi Nilahi; Cyrke Adfie Netty Bujung; Jeilen Gabriela Nikita Nusa; Alfrie Musa Rampengan
Jurnal FisTa : Fisika dan Terapannya Vol 5 No 2 (2024): 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.v5i2.356

Abstract

Energy is very important for humans, apart from that the environment also has the same important role, in other words energy and the environment are inseparably linked. This research aims to see the differences in the chemical content and physical properties of geothermal manifestation water and residents’ well water, as well as to find outh whether the manifestation water content affects local residents’ well water. The research samples consisted of hot springs and local well water, where the physical and chemical properties observed were: Temperature, pH, DHL, CL, Fe, H2S,SO4. The results of measurement and sample testing obtained were then analyzed descriptively. The result obtained from this research are that for the physical properties and chemical content of Cl, Fe, H2S, and SO4 there is not much difference in the content analysis results, while for the DHL, Temperature and pH values there are quite large differences, but still is below the standard value for clen water quality.
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%.
Co-Authors Aghata Archenta Tumengkol Alfrie Musa Rampengan Angelika Kristi Nilahi Armstrong F. Sompotan Aswin Mandolang Bergita Gela Saka Bethrany F. Landung Bululung, Alfian Cyrke A N Bujung Donny Royke Wenas Farly Reynol Tumimomor Gregorius Siga Heindrich Taunaumang Heinrich Taunaumang Ishak Pawarangan Jeane V. Tumangkeng Jouhari Wote Lenda Lumentah Marcellino Christofel Mambu Marcellino Christofel Mambu Mawuntu, Vicky Julius Mince Manguma Natalia Pandoh Rampengan, Alfrie M. Rende, Jeane Cornelda Rolles Nixon Palilingan Saka, Bergita Gela Sorongan, Christina Tuloi, Silo Palerius Tumengkol, Aghata Archenta Vicky Mawuntu Vistarani Arini Tiwow Watulingas, Aldo Nandito Wilson Jefriyanto