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All Journal Journal of Engineering and Technological Sciences Dinamisia: Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN MIPA SOSCIED Jurnal Aplikasi dan Inovasi Iptek (JASINTEK) International Journal of Information Techonology and Education (IJITE) Abdimas : Jurnal Pengabdian Kepada Masyarakat Charm Sains : Jurnal Pendidikan Fisika Bersatu: Jurnal Pendidikan Bhinneka Tunggal Ika Jurnal FisTa : Fisika dan Terapannya
Armstrong F. Sompotan
Universitas Negeri Manado
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Pengaruh Temperatur Air Pendingin Terhadap Efisiensi Dan Kinerja Turbin Di Pembangkit Listrik Tenaga Panas Bumi Unit 2 Lahendong Zevanya Daniela Talumesang; Armstrong Sompotan; Sixtus Iwan Umboh
Jurnal FisTa : Fisika dan Terapannya Vol 3 No 1 (2022): 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.v3i1.170

Abstract

Cooling water has a role in the process of condensing steam from the turbine to the condenser. Cooling water has an effect on maintaining the vacuum pressure in the condenser, so that the steam going to the condenser is maximally condensed. This study aims to determine the effect of variations of the cooling water temperature on the efficiency and performance of the turbine.. The research begins by reviewing the turbine conditions and turbine specifications including the surrounding environment. The higher the cooling water temperature, the greater the efficiency achieved. When the cooling water temperature is 29.14℃ the turbine efficiency value is 72% with the turbine performance value achieved is 627.568 kJ/kg. When the cooling water temperature is 30.43℃ the turbine efficiency achieved is 80% with the performance value achieved is 570,994 kJ/kg. The results also show that the higher the cooling water temperature, the turbine performance value will decrease and vice versa if the cooling water temperature decreases, the turbine performance value will increase.
Pengaruh Perubahan Temperatur Lingkungan terhadap Kinerja dan Efisiensi Turbin pada Pembangkit Listrik Tenaga Panas Bumi (PLTP) Unit 2 Lahendong Prisilia Mariono; Rolles Nixon Palilingan; Armstrong F. Sompotan
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.v3i2.214

Abstract

The Lahendong Geothermal Power Plant (PLTP) is the largest power plant in North Sulawesi. Turbine is one of the important components in a power plan, so performance and efficiency must be considered. Environmental temperatures that change on a daily basis can potentially affect turbine performance and efficiency. Therefore, it is necessary to analyze the turbine to determine whether the ambient temperature can affect the performance and efficiency of the turbine. The results of the study for 14 days at 10.00 and 22.00 showed differences in the value of turbine performance and efficiency. The turbine performance value is greater during the day than at night. Turbine efficiency is affected by the ambient temperature, when the ambient temperature increases there is a decrease in efficiency and when the temperature decreases there is an increase in turbine efficiency
Estimasi Hilang Panas Alamiah Pada Manifestasi Mata Air Panas Desa Pinaesaan Kecamatan Tompaso Baru Kabupaten Minahasa Selatan Putri Isaura Christoffel; Armstrong F. Sompotan; Jefferson Polii
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.v4i1.241

Abstract

Geothermal energy is a source of heat energy stored in rocks and fluids contained below the earth's surface. One area that has geothermal potential in North Sulawesi is Pinaesaan Village, Tompaso Baru District. Around the village of Pinaesaan, geothermal manifestations are found, one of which is a hot spring. In determining the prospect of geothermal potential in an area, it is necessary to conduct research on surface manifestations. One of the steps taken in the study of surface manifestations is the calculation of natural heat loss (heat loss) at the research site. The method used in this study is direct measurement in the field by measuring air temperature, manifestation temperature and area of manifestation, which will then be processed through heat loss calculations. Based on the research, the average temperature of the hot spring manifestations in Pinaesaan village is the temperature manifestation 71,3˚C and air temperature 24,7˚C and the area of manifestation 2,94 m2. The value of heat loss is 0,0185 MW, and the speculative resource is 0.185 MW.
Penerapan Multimedia Pembelajaran Berbasis Masalah dalam Meningkatkan Hasil Belajar dan Keterampilan Berpikir Tingkat Tinggi Meike Paat; Armstrong F. Sompotan; Aneke Pesik; Yohanes Bery Mokalu; Imriani Moroki
JURNAL PENDIDIKAN MIPA Vol 14 No 1 (2024): JURNAL PENDIDIKAN MIPA
Publisher : Pusat Publikasi Ilmiah, STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpm.v14i1.1493

Abstract

Tujuan penelitian yaitu mengoptimalkan hasil belajar serta keterampilan berpikir tingkat tinggi siswa dalam pembelajaran dengan penerapan multimedia pembelajaran menggunakan model pembelajaran berbasis masalah pada Siswa SMP Negeri 7 Bitung. Penelitian tindakan kelas diimplementasikan lewat dua siklus, pada tiap siklus terdapat tiga sesi. Subjek penelitian ini yaitu 20 siswa kelas 9, dengan tahapan penelitian terdiri dari perencanaan, pelaksanaan, observasi, serta refleksi. Pengumpulan data melalui tes dengan menggunakan soal high order thinking skills, observasi, serta dokumentasi, dan dianalisis menggunakan rumus, rata-rata, dan persentase. Analisis yang dilakukan terdapat peningkatan hasil belajar, serta ketrampilan berpikit tingkat tinggi. Peningkatan itu terlihat dari nilai ketuntasan siswa dan ketuntasan klasikal yang meningkat pada setiap siklus, dari rata-rata nilai siklus I sejumlah 52, pada siklus II sejumlah 69, dan pada siklus III menjadi 82. Jumlah Siswa yang memenuhi nilai kriteria ketercapaian tujuan pembelajaran yaitu 8 Siswa (siklus I), 13 Siswa (siklus II), menjadi 18 (Siklus III). Pertambahan persentase ketuntasan klasikal siswa dari siklus I sejumlah 40%, siklus II 65%, menjadi 90% pada siklus III, kesimpulan dari penelitian ini yaitu terjadi peningkatan hasil belajar serta keterampilan berpikir tingkat tinggi Siswa.
Analisis Seismisitas Di Sulawesi Utara Berdasarkan Data Gempa Bumi Tahun 2018-2022 Rut Seriaty; Armstrong Sompotan; Cyrke A. N. Bujung
Bersatu: Jurnal Pendidikan Bhinneka Tunggal Ika Vol 2 No 2 (2024): Maret : Jurnal Pendidikan Bhinneka Tunggal Ika
Publisher : LPPM Politeknik Pratama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/bersatu.v2i2.622

Abstract

The objective of this study is to assess the seismic activity and brittleness of rocks, as well as the level of risk associated with natural disasters in North Sulawesi. The earthquake data utilized is derived from secondary sources spanning the years 2018 to 2022, specifically received from the Manado Geophysical Station. The data processing encompasses many criteria such as locations, magnitude, depth, and time of occurrence. The Guttenberg-Richter approach yields a seismicity level ranging from 4.121 to 5.589, while the rock fragility falls within the range of 0.98 to 1.072. The Talaud Islands Regency has the highest level of seismicity, measured at 5,589, while the East Bolaang Mongondow Regency has the lowest level, measured at 4,121. The Talaud Islands Regency region has the highest degree of rock fragility, measured at a value of 1.072, while the North Bolaang Mongondow Regency area demonstrates the lowest amount of rock fragility, measured at a value of 0.98. The Talaud Islands have the most significant earthquake risk, whereas the areas with the least danger include Minahasa, Sangihe Islands, Siau Tagulandang Biaro, Manado, Bitung, Tomohon, Kotamobagu, Southeast Minahasa, South Minahasa, and North Minahasa.
Development of Problem-Based Tools to Improve Thinking Abilities in In-Service PPG Program Students Rengkuan, Mariana; Sompotan, Armstrong F.; Batmetan, Johan Reimon
International Journal of Information Technology and Education Vol. 3 No. 2 (2024): March 2024
Publisher : JR Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62711/ijite.v3i2.179

Abstract

This research aims to develop problem-based learning tools that empower students' thinking abilities in the In-service Teacher Professional Education Program at Unima. The learning tools developed consist of modules and LKPD for the Biology Learning Tool Development course. The development model used is the ADDIE development model consisting of four stages, namely 1) analysis, 2) design, 3) development, 4) implementation, and 5) evaluation. The results of the research are the feasibility of the learning tools which are seen based on the aspects of validity, practicality, and effectiveness of the learning tools. Next, to see the effectiveness of problem-based learning tools on thinking ability using One Group Pretest-Posttest Design which was implemented on 29 PPG Daljab Category 1 students, class 3 of 2023. The results of the research show that the learning tools are very valid with an assessment score interval between 3.5-4 and reliability between 95%-98%. The learning implementation is categorized as very good with an assessment score interval between 3.6-4 with an average reliability of 97%, the average readability level of the device based on the Gunning Fox index is 11 with medium criteria, the readability percentage of the learning device based on the readability sheet of the learning device is 97% and students provide a positive response to learning tools was 98%. The increase in students' cognitive learning outcomes can be seen from the average N-gain value for all students, namely 0.68 with medium criteria, classical completeness of 100%, and indicator completeness with an interval of 2.5-3.5. Based on the results of this research, it can be concluded that problem-based learning tools in the biology teaching tool development course are suitable for use to improve the thinking skills of students in the PPG Daljab Program at Unima.
ANALISIS PARAMETER KEGEMPAAN a-VALUE DAN b-VALUE DI PROVINSI SULAWESI UTARA PERIODE 2019-2023 Sangi, Monika Siska; Palilingan, Rolles N; Sompotan, Armstrong F.; Manado, Stasiun Geofisika
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.858

Abstract

Indonesia is an area that is prone to natural disasters, one of which is earthquakes. Several strong earthquakes have occurred in North Sulawesi, causing extensive structural damage. This study aims to determine the seismicity parameter values a-value and b-value or to determine the level of fragility and seismicity in North Sulawesi. The earthquake data used is secondary data for the period 2019-2023 obtained from the Manado Geophysical Station, BMKG, North Sulawesi. The data obtained includes the date, time of occurrence, latitude, longitude, magnitude and depth of the earthquake. This study uses the Guttenberg-Richter method which is processed using Zmap software. From the distribution of earthquake data, it is known that a major earthquake occurred in 2019 with a magnitude of 7.1. The results of this study show that in 2019 it had a high a-value, namely 8.13. This shows that in 2019 in the North Sulawesi area there were relatively more earthquakes. The b-value results in this study show that in 2022 it has a high b-value, which is 1.32. This is influenced by elastic rocks that experience stress so that there is a change in shape or deformation called rock fragility. Seismicity vulnerability in the North Sulawesi region for the period 2019-2023 ranges from 6.16 to 8.13 with a rock fragility level range from 0.91 to 1.32
ANALISIS PERGERAKAN TANAH BERDASARKAN PEAK GROUND VELOCITY (PGV) AKIBAT GEMPA BUMI DI LUWUK Timbuleng, Lingkan Mantiri Paat; Sompotan, Armstrong; Tumimomor, Farly R
Charm Sains: Jurnal Pendidikan Fisika Vol 1 No 2 (2020): JUNI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1081.87 KB) | DOI: 10.53682/charmsains.v1i2.16

Abstract

Central Sulawesi is located between the boundaries of tectonic plates which are interconnected with one another. Some tectonic plates are located near Central Sulawesi, including the Indo-Australian plate, the Pacific plate, and the Eurasian plate. The interaction of these plates causes the formation of subduction and fault lines as locations that have the potential to become the center of an earthquake. Earthquakes at scale specific strength can cause infrastructure damage and fatalities. This has led to the importance of erecting earthquake resistant buildings based on the characteristics of ground motion which is Peak Ground Velocity and Ground Motion Prediction Equation method. The purpose of this study is to see the pattern of the relationship between Peak Ground Velocity and earthquake parameters, make an empirical equation of Peak Ground Velocity predictions and see the gorund motion in the Luwuk area with coordinate 2,5 °LS – 1,5°LU dan 119°BT - 127°BT used the Peak Ground Velocity and Ground Motion Prediction Equation method. The result shows the pattern is directly proportional to the relationship between earthquake parameters and the Peak Ground Velocity, and for the empirical equation obtained is log (PGV) = -3.8873 + 1.026975 x M – 1.34171 x log (R +17).
Organic and Food Waste Management Mentoring on The LOSIDA Method in Tombatu I State Highschool, Southwestern Minahasa As a Manifestation of the P5 Program: Pendampingan Pengelolaan Sampah Organik dan Food Waste menggunakan Metode LOSIDA di SMA Negeri I Tombatu, Minahasa Tenggara sebagai Perwujudan Program P5 Armstrong Fransiskus Sompotan; Johanna Zusye Wantania; Janne Deivy Ticoh; Revolson Alexius Mege; Livana Dethris Rawung; Dino Rahardiyan; Emma Mauren Moko
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 6 (2024): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v8i6.23407

Abstract

Schools largely contributes to community wastes. Waste management movements are required to reduce impacts of community wastes. Tombatu 1 State Highschool, Southwestern Minahasa is a well recognized school in the vicinity. Their large studentbody are the biggest contributors to community local wastes. Losida (biopore) is a simple solution for managing organic waste by convertion to beneficial compost soil restoration on school grounds. The purpose of this activity was simple biopore application and management by teachers and students as a manifestation of the P5 program. Through this activity knowledge and skills of the students as a steward of the environment were honed. This activity serves a media for disemination and training inspiring students to grow for their love of the environment. Also, a media for science application of involved lecturers, impacting the society outside of campus grounds in the efforts of achieving on of the institution’s performance indicators (IKU Perguruan Tinggi).
Analisis Karakteristik Fluida dan Estimasi Temperatur Reservoir Desa Sawangan Kabupaten Minahasa Utara Gloria Permatasari; Armstrong F. Sompotan; Jeferson Polii
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.v5i2.355

Abstract

Geothermal energy is the heat stored within the Earth’s subsurface rocks and the fluids contained within them. Indonesia, located on the Ring of Fire, has significant geothermal potential, particularly in North Sulawesi. This study aims to assess the geothermal energy potential in Sawangan Village, North Minahasa Regency, specifically at the Kepangian River hot springs. The research was conducted by analyzing the fluid characteristics and estimating the geothermal reservoir temperature using geochemical fluid analysis and geothermometer calculations. The analysis Involved laboratory testing of fluid samples, followed by data processing using Na-K and silica geothermometers, and plotting on a Na-K-Mg ternary diagram. The results indicate that the fluid type at the Kepangian River hot springs is immature water, with an estimated reservoir temperature ranging from 240.04°C to 267.01°C, which classifies it as a high-temperature reservoir.
Co-Authors Aneke Pesik Cyrke A N Bujung Dino Rahardiyan Donny Royke Wenas Emma M Moko Farly Reynol Tumimomor Gloria Permatasari Heindrich Taunaumang Imriani Moroki Iwan Sixtus Umboh Jeferson Polii Jeilen Gabriela Nikita Nusa Jimmy Lolowang Johan Reimon Batmetan Linus Pasasa Livana Dethris Rawung Makahinda, Florstin Celine Manado, Stasiun Geofisika Mariana Rengkuan Meike Paat Mince Manguma Nurul Pratiwi Poluakan, Willy Ch A. Pratasik, Stralen Prisilia Mariono Putri Isaura Christoffel Quido Conferti Kainde Rachmat Sule Rachmat Sule Ravael Ratumbuysang Revolson Mege Rolles N Palilingan Rolles Nixon Palilingan Rut Seriaty Sangi, Monika Siska Sike Suwuh Sixtus Umboh Stivano Mamarama Ticoh, J D Timbuleng, Lingkan Mantiri Paat Truly Daniel Tumimomor, Farly R Walter Balansa Wantania, Johanna Zusye Yohanes Bery Mokalu Zevanya Daniela Talumesang