cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Donny R. Wenas
Contact Email
jurnalfista@unima.ac.id
Phone
+628124414804
Journal Mail Official
jurnalfista@unima.ac.id
Editorial Address
PROGRAM STUDI FISIKA FAKULTAS MATEMATIKA ILMU PENGETAHUAN ALAM DAN KEBUMIAN UNIVERSITAS NEGERI MANADO Jl. Kampus Unima, Kel. Koya, Kec. Tondano Selatan, Minahasa, Indonesia
Location
Kab. minahasa,
Sulawesi utara
INDONESIA
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 63 Documents
 2   3   4   5   6 
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.
ANALISIS PERFORMA MENARA PENDINGIN MECHANICAL INDUCED DRAUGHT ALIRAN COUNTERFLOW PADA PEMBANGKIT LISTRIK TENAGA PANAS BUMI LAHENDONG UNIT 5 Jeisi Meilita Walangitan; Cyrke Bujung; Farly Tumimomor
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.v2i2.137

Abstract

In the geothermal power plant process, the main cooling water system is required to maximize the power plant, one of them is using the cooling tower. The Cooling Tower is an incredibly vital cooler. So, the performance must be noted is still in accordance with initial conditions. The purpose of this research is to determined the performance of Mechanical Induced Draught counterflow Cooling Tower in Lahendong Geothermal Power Plan Unit 5 with quantitative research for 7 days with 10 hours of operational work. In Lahendong Geothermal Power Plant Unit 5. The result of this research showed the performance of Mechanical Induced Draught Counterflow Cooling Tower in Lahendong Geothermal Power Plan Unit 5. The range increased up to 14.2 C, in the morning because of the high humidity, the effectiveness which also increases in the morning and the airflow conditions which still remain. So, this research will be concluded when the performance of Mechanical Induced Draught Counterflow Cooling Tower Geothermal Power Plant Unit 5 is still in normal operation conditions and needs to do Make-up Water amounts of 387.81 m3/h.
PERBANDINGAN KARAKTERISTIK KARBON AKTIF ARANG TEMPURUNG KELAPA DAN ARANG TEMPURUNG KEMIRI MENGGUNAKAN SCANNING ELECTRON MICROSCOPIC DAN FOURIER TRANSFORM INFRA RED Lauri Leslie Mendame; Patricia Silangen; Alfrie Rampengan
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.v2i2.138

Abstract

Utilization of coconut shell and candlenut shell in Indonesia has not been used optimally as in North Sulawesi. The purpose of this research was to compare the characteristics of the pore size and functional groups of activated carbon, coconut shell charcoal and candlenut shell charcoal. The research method includes the activation stage and characterization of activated carbon using Scanning Electron Microscopic (SEM) and Fourier Transform Infra Red (FTIR). The results of this study are the characteristics of coconut shell charcoal activated carbon which has a larger pore size of 31.5 µm - 41.9 µm when compared to candlenut shell charcoal activated carbon which has a small pore size, namely 23.0 µm - 33.1 µm. . Both of these activated carbons have the same functional group, namely O-H, C=C, C-O, C-H which is an activated carbon composition.
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.
ANALISIS SIFAT KIMIA FISIK FLUIDA DAN ESTIMASI TEMPERATUR RESERVOIR DI DAERAH MANIFESTASI PANAS BUMI BAKAN BOLAANG MONGONDOW Marcelino Datunsolang; Cyrke Bujung; Jeferson Polii
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.v2i2.140

Abstract

Bolaang Mongondow is an area that has an active volcano, namely the Ambang volcano, which is located in the village of Bakan. The existence of hot spring manifestations that appear indicates the potential for geothermal energy in the area. However, until now, geothermal potential in the area has not been developed due to a lack of knowledge about determining geothermal potential. For this reason, research on reservoir characteristics such as fluid type and reservoir temperature estimation is carried out. The method used in this research is the geochemical analysis of the fluid in the form of the percentage of fluid content and the calculation of the geothermometer. Fluid type analysis was determined based on plotting on ternary Na-K-Mg diagrams. While the reservoir temperature estimation is determined using the Na-K geothermometer equation. From the physical-chemical analysis of fluids in Bakan hot springs, it was found that the type of fluid in the Bakan area was immature water. Based on the estimated reservoir temperature calculation using a Na-K Geothermometer, the subsurface temperature ranges from 235 ℃ - 242 ℃ and includes a High-temperature reservoir.
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.

Page 4 of 7 | Total Record : 63

 2   3   4   5   6 

Filter by Year

2020 2023


Reset
Filter By Issues
All Issue Vol 4 No 1 (2023): APRIL Vol 3 No 2 (2022): OKTOBER Vol 3 No 1 (2022): APRIL Vol 2 No 2 (2021): OKTOBER Vol 2 No 1 (2021): APRIL Vol 1 No 2 (2020): OKTOBER Vol 1 No 1 (2020): APRIL