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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 10 Documents
 1 
Search results for , issue "Vol 3 No 1 (2022): APRIL" : 10 Documents clear
Profil Vertikal dan Luas Bidang Dinamika Harian Gradien Suhu Udara di Atas Permukaan Air Danau Tondano di Lokasi Budidaya dan di Luar Lokasi Budidaya Ikan Andre Dona; Christophil Medellu; Patricia Mardiana Silangen
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.v3i1.162

Abstract

This study aims to determine the temporal and spatial functions of air temperature and the dynamic function of air temperature gradient over the lake surface. This research method was carried out on two transects at the fish farming location and outside the fish farming location. By taking data at nine altitude positions for 24 hours. Measurement time starts from 05:00 am to 05:00 am, with time intervals of 2 hours. Measurement positions according to the vertical distance from the surface of the lake are: 0cm, 10cm, 30cm, 60cm, 100cm, 150cm, 220cm, 300cm, 400cm. Data processing is carried out by compiling the data format in the form of a matrix, then analyzed using an external program or software that includes temporal and spatial functions, functions and the area of ​​the gradient dynamics. The results of this study indicate that mathematical modeling which produces a continuous function of temporal and spatial changes in microclimate variables allows the development of new parameters, namely the dynamics of air temperature gradients. This research was carried out on two different transects with different conditions of the lake ecosystem and its environment. It shows that the area of ​​the plane is formed by the daily dynamic curve of different air temperature gradients for the two transects.
Identifikasi Komposisi Mineral Batuan Teralterasi Menggunakan Spektroskopi SEM-EDX dan FTIR Pada Daerah Manifestasi Panas Bumi di Desa Mototompiaan Kecamatan Modayg Kabupaten Bolaang Mongondow Timur Chikita Hulungo; Donny Royke Wenas; Anneke Rondonuwu
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.v3i1.163

Abstract

Mototompiaan village is one part of the area that has geothermal potential, there are 2 types of manifestations that exist in the area that is in the form of hot springs and mud pool. The purpose of this study to determine mineral composition of rocks which is in the area around geothermal manifestation of hot springs by SEM-EDX and FTIR. Based on the result of identification using SEM-EDX in sample 1 shows that there are composition of Aluminium (Al) 6.11%, Fe 11,10% and Silica (Si) 82.79%, while sample 2 contains Aluminium (Al) 6.53%, Fe 9,16%, Co 2,85% and Silica (Si) 87.13%. The test result by FTIR spectroscopy can be known the types of minerals contained in rock samples are Hermatite, Arganite, Quartz, and Palygorskite.
Analisis Penurunan Tekanan Fluida di Dalam Pipa Antara Hotwell Pump (HWP) dan Menara Pendingin pada Pembangkit Listrik Tenaga Panas Bumi Lahendong Unit-2 I Wayan Rikiawan; Rolles Nixon Palilingan; Alfrie Musa Rampengan
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.v3i1.164

Abstract

A geothermal power plant (PLTP) is a power plant that utilizes geothermal fluid as its primary energy source. The fluid flowing in the PLTP component undergoes a change in magnitude which is very important to know, one of which is the pressure drop. Pressure drop is an essential term that can describe the pressure drop at a point in the pipe caused by particle friction in the fluid, fluid acceleration, and flow pipe elevation. An analysis of the pressure drop in the pipe between the hot well pump (HWP) and the cooling tower was carried out using the Harriston-Freeston method, which was made on Pressure Drop Modeling using a module program and visual basic. This program study the pressure drop in the pipe from the hot well pump (HWP) to the cooling tower as outlined in the form of a graph where the pressure drop along the pipe, both between hot well pump A and hot well pump B, as well as hot well pump B and cooling towers having a significant pressure drop. In the pipeline between hot well pump A and hot well pump B, the pressure is from 3.6 bar to 3.4 bar. Likewise, the pipeline between hot well pump B and the cooling tower also experiences the same pressure drop, namely at a pressure of 3.4 bar to a pressure of 1 bar. This thing is influenced by the pipe diameter. There is a reduction in diameter and particle friction in the fluid, fluid motion acceleration, and flow pipe elevation in certain pipelines.
Karakteristik Fluida Panas Bumi Menggunakan Geoindikator Cl-Li-B di Daerah Desa Bakan Musa Salvador Arikalang; Rolles Nixon Palilingan; Jeferson Polii
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.v3i1.165

Abstract

Geothermal is a natural heat resource that comes from the interaction between hot rock and water. The results of these interactions are trapped in a place called a geothermal reservoir. North Sulawesi is an area that has geothermal potential, one of which is in Bakan, Bolaang Mongondow, geothermal potential here is a manifestation of hot springs. The purpose of this study was to determine the characteristics of geothermal fluids in the Bakan Village area, using the Cl-Li-B geoindicator method. The use of the Cl-Li-B geoindicator results in Cl being more dominant than Li and B indicating that hot water coming from a heat source that rises to the surface is a fluid originating from a heat source with little cooling, a low B/Li ratio indicates that the fluid zoning is in the upflow zone.
Analisis Karakteristik Fluida dan Temperatur Reservoir Dengan Menggunakan Diagram Ternary Cl-Li-B Pada Manifestasi Panas Bumi Di Desa Kaleosan, Minahasa Utara Ravael Ratumbuysang; Armstrong Sompotan; Jeferson Polii
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.v3i1.166

Abstract

Research on determining the fluid and temperature of the geothermal reservoir in Kaleosan village, Kalawat district, North Minahasa regency, the hot springs are 100 ml. Determination of the characteristics of geothermal fluids is carried out using the Cl-Li-B triangle diagram. The Cl-Li-B triangular diagram is used to determine the origin, boiling, and dilution of geothermal reservoir fluids. Reservoir temperature estimation is done by using silica geothermometer equation. Measurements of Li, B and Ca elements were carried out using Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) and measuring SiO2 compounds using Visible Spectroscopy. Measurement of Cl elements using acid-base titration method at the PT. Indonesian WLN. Based on laboratory results and data processing and field sampling, the dominant type of chloride (Cl) concentration was obtained. The results showed that the geothermal springs in Kaleosan Village are in immature water, which indicates that the geothermal reservoir fluid has undergone dilution with other elements. The geothermal system in Kaleosan Village is dominated by water and hot springs come out in the outflow zone.
Analisis Spektroskopi Ftir Untuk Karakterisasi Kimia Fisik Fluida Mata Air Panas Di Kawasan Wisata Hutan Pinus Tomohon Sulawesi Utara Ridel Raturandang; Donny Royke Wenas; Satyano Mongan; Cyrke Bujung
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.v3i1.167

Abstract

Geothermal is one of the alternative energy sources that are classified as new and renewable (new and renewable). This is because geothermal energy sources are still relatively new and are said to be renewable because production waste in the form of water is re-injected and produces a recycle process that allows sustainability. The process of exploration, exploitation and production does not produce toxic gas emissions. In terms of prospects, geothermal itself is a promising energy in the future because the source is heat from within the earth that will never run out. One of the areas in North Sulawesi that has the potential for geothermal project development is located in the Tomohon area, North Sulawesi Province. Based on the preliminary survey that has been carried out, at this location found manifestations in the form of hot springs located in the Pine Forest. The purpose of this study was to determine the type of fluid and functional groups of molecules manifesting hot springs in the Tomohon pine forest tourism area. Analysis of the ion content in the fluid using spectrophotometer characterization, and analysis of molecular functional groups using FTIR (Fourier Transform Infra Red) spectroscopy. The results showed that the type of fluid manifestation of the hot springs in the Tomohon Pine Forest Tourism Area has the type of bicarbonate (HCO3). Analysis of functional groups of fluid molecules in the manifestation of hot springs in the Tomohon Pine Forest Tourism Area has functional groups C=O, C≡C and O-H.
Analisis Bahaya Gempa Bumi Menggunakan Metode Probabilistic Seismic Hazard Analysis Di Wilayah Likupang, Minahasa Utara Rini Indri; Heindrich Taunaumang; Farly Reynol Tumimomor
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.v3i1.168

Abstract

The Probabilistic Seismic Hazard Analysis (PSHA) method is a method used in seismic hazard analysis based on the definition of a probability distribution function that takes into account and combines the uncertainties of the earthquake event scale, location, and frequency of occurrence, to obtain a comprehensive picture of the hazard level or a location that reviewed. The Likupang area, North Minahasa is a location that is prone to earthquake disasters, for this reason, early mitigation is needed, one of which is mapping the potential for disaster hazards. Maximum ground vibration acceleration (PGA) is the greatest value of ground acceleration at a place caused by earthquake vibrations in a certain period of time. In this study, the results of the PSHA calculation in the North Minahasa Likupang area were obtained, the largest PGA value was 1.4g–1.8g, tilapia SA T= 0.2 seconds was 1.7g-2.1 and SA T=1 value, 0 seconds is 0.5g – 0.6g. Based on these results, the danger of light to severe damage can be caused.
Estimasi Percepatan Tanah Maksimum Di Kota Manado Berdasarkan Modifikasi Persamaan Atenuasi Stevi Anjelo Langitan; Heindrich Taunaumang; Sixtus Iwan Umboh; Sesar Prabu Dwi Sriyanto
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.v3i1.169

Abstract

In analyzing the risk of an earthquake it is necessary to have parameters used, one of which is the maximum ground acceleration or Peak Ground Acceleration (PGA). Some data is not fully available on the accelerometer network. Therefore, the purpose of this study is to select an appropriate GMPE equation to estimate the PGA size in Manado City. The selection of the GMPE equation in this study considers the relative difference value and the correlation coefficient in the GMPE equation. Based on these results, the formulation of Kanno, et al. (2006) was chosen to be the initial GMPE equation in the Manado City area. The equation is modified to get an equation with new coefficients. From the results of this equation, it can be determined that the city of Manado often experiences any type of earthquake and also gets the mitigation that needs to be applied.
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.
Identifikasi Mekanisme Kedalaman Gempa Vulkanik Gunungapi Soputan Menggunakan Data Seismik Vulkanik Dalam Periode April-Mei 2014 Sriwahyu Tiyow; Patricia Silangen; Theresje Mandang
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.v3i1.171

Abstract

Indonesian An archipelago country that has many volcanoes, namely 147 volcanoes 127 of which are active volcanoes. Spread in several regions of Indonesian following the boundaries of the active plate starting from the islands of Sumatra, Java, Bali, West Nusa Tenggara, Flores, Sulawesi and Maluku. Soputan volcano is one of 127 active volcanoes in Indonesia, is a Strato volcano. As an active tecto-volcanic country, with many volcanoes we try to minimize and prevent the dangers posed by volcanic eruptions. Based on these thoughts, to date in Indonesian various methods of volcanic natural disasters have been carried out, including earthquakes (seismic). Volcanic earthquakes usually occur in the area around volcanoes and their magnitudes are generally very small, averaging less than 5 on the Richter Scale. The depth of the volcanic earthquake ranges from 0-40 km. Based on the hypocentrum distribution of the depth of the epicenter, it shows that the earthquake point that occurred before the eruption was at a depth of 0 km - 2 km at sea level, while the point of the earthquake that occurred during the eruption was at a depth of 0 km - 2 km below sea level, the point of the earthquake that occurred after the eruption it is at a depth of 0 km - 3 km below sea level. The mechanism for the eruption of Mount Soputan Volcano is a visual change in the vegetation around the crater, the plants turn yellow and can die, as soon as the thin crater turns gray.

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