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Jurnal Fisika dan Terapannya

jft
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Published by Universitas Islam Negeri Alauddin Makassar

ISSN : 23021497 EISSN : 27152774 DOI : -

Core Subject : Science,

Physics

Jurnal Fisika dan Terapannya (JFT) adalah jurnal fisika yang diterbitkan oleh Jurusan Fisika, Fakultas Sains dan Teknologi, Universitas Islam Negeri Alauddin, Makassar. Jurnal ini diterbitkan dua kali setahun pada bulan Juni dan Desember. Jurnal ini mencakup artikel penelitian dalam semua aspek fisika dan terapannya. Jurnal ini pertama kali diterbitkan pada bulan Desember 2014 dan secara online di tahun 2019. Artikel hasil penelitian dalam jurnal ini berkaitan dengan fisika yang meliputi adalah fisika teori, fisika material, geofisika, fisika kesehatan, fisika instrumentasi, fisika komputasi, dan astrofisika.

Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)

Articles 11 Documents

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Search results for , issue "Vol 6 No 2 (2019): Desember" : 11 Documents clear

PENGARUH JENIS BAHAN BAKAR BIOBRIKET TERHADAP UNJUK KERJA PADA MINIATUR PEMBANGKIT LISTRIK TENAGA UAP Narti, Narti; Ihsan, Ihsan; Zelviani, Sri; Wahidah, Nurul; Abadi, Firdaus Alam
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Research has been conducted to determine the effect of biobriquette fuel types on electric power generated in miniature steam power plants. This study uses four fuels, namely raw materials for coconut shell and wood, and biobriquette from coconut shell and wood. There are two parameters tested in this study, namely the burning time and evaporation of 2000 ml of distilled water and the electric power generated. Based on research that has been done it can be concluded that the type of fuel influences the amount of power produced. From the type of fuel obtained that the greater the calorific value of a fuel, the electric power produced will be greater as well. small heating value of around 3000 cal / g, the electric power produced is getting smaller, that is equal to 0.0021 watts.

PENDUGAAN ZONA AKUIFER DENGAN METODE GEOLISTRIK RESISTIVITY KONFIGURASI SCHLUMBERGER DI DESA JENETALLASA KECAMATAN BANGKALA KABUPATEN JENEPONTO Musriadi Musriadi; Ayusari Wahyuni; Andi Syam Rizal; Sahrul Sani Saparuddin; Andi Devi Sri Anjani
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Springs are a problem in areas where geographic conditions are predominantly hot with low annual rainfall. Water is one of the basic needs for all living things on Earth, both plants, animals and especially humans. If there is a scarcity of spring sources, it is certain that daily activities are very disturbed. Scarcity of springs as happened in Jenetallasa Village greatly influences community activities in the Village. Prolonged drought results in increasingly severe water scarcity that occurs. Based on this problem, a field study was conducted to estimate the aquifer zone. Aquifers are a source of springs located in cavities brought under the surface of the ground which reminisce or flow. Aquifers themselves can be predicted without existence of drilling or excavation. Detection of aquifers can be done using geoelectric methods with different configurations. Our field study this time uses a schlumberger configuration with a length of 120 meters with an approximate depth of 60 meters below ground level.

PENGARUH JENIS FLUIDA TERHADAP UNJUK KERJA MINIATUR PEMBANGKIT LISTRIK TENAGA UAP Wahidah, Nurul; Ihsan, Ihsan; Zelviani, Sri; Abadi, Firdaus Alam
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

The Research has been conducted which aims to determine the type of fluid on the power generated in the Miniature (PLTU) Steam Power Plant. The results obtained show that the turbidity level of water in aquades is 0.0 NTU, the turbidity level in 1.2 NTU well water and the turbidity level in river water is 6.5 NTU, with the concentration of acidity in aquades 5.6, at water concentrations wells 5.5 and at river water concentrations 5.2. COD content in aquades 63.2 mg / L, in well water 110.6 mg/L, in river water 189.6 mg / L, BOD content in aquades 2.2 ppm, in well water 1.1 ppm, and at 0.2 ppm river water based on the results of research that has been done can be concluded that the type of fluid influences the amount of electric power generated in the sample aquades 0.021 watts, in well water 0.006 watts, in river water 0.004 watts.

PENGARUH PERBANDINGAN MOLAR OKSIDA SiO2:Al2O3 dan Na2O:SiO2 TERHADAP SIFAT MEKANIK GEOPOLIMER BERBASIS LATERITE DEPOSIT BONE Farina, Farina; Subaer, Subaer; Haris, Abdul
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

The main objective of this research is to determine the effect of molar oxides of SiO2:Al2O3 and Na2O:SiO2 to the mechanical properties of geopolymer based on laterite soil deposite Bone. Geopolymers were produced through alkali-activation method of dehydroxylation laterite. Dehydroxylation was performed by using high-temperature furnace at Â for 4 hours. The chemical compositions and the microstructure properties of the starting and the resulting materials were characterized based on X-Ray Diffraction (XRD) and Scanning Electron Microscopys (SEM). Measurements of bulk density, apparent porosity and compressive strength were carried out by using Archimedes method and Universal Testing Machine. The results showed that the highest phase of the starting material was quartz (SiO2). The physical properties of geopolymers was examined from the value of their bulk density, apparent porosity and the magnitude of their compressive strength. The results showed that the value of the porosity and the density are inversely proportional, the smaller the porosity, the greater the density. The highest compressive strength value was 6.33 MPa obtained from the sample designated as K6. It was found that geopolymer based on Bone laterite exhibited good mechanical properties.

ANALISIS LAJU KOROSI BESI BETON DENGAN MEDIUM TANAH RAWA Rahmaniah, Rahmaniah; Amalia, Nurul; Ihsan, Ihsan
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

The research on corrosion rate analysis of concrete iron with swampsoil medium has been conducted. The aims of this study were to determine thecorrosion rate and the types of corrosion that occurred in concrete iron withswamp soil medium. The methods of this study are Weight Loss method, AtomicAbsorption Spectroscopy (AAS) test, and Scanning Electron Microscope-EnergyDispersion X-Ray (SEM-EDX). This study used a different immersion timevariant, such as 20 days, 40 days, 65 days, and without medium for 65 days. Theconcrete iron used in this study is concrete U-24 or plain concrete iron 10. Thecorrosion rate that occurs in iron concrete with swamp soil medium at 20 daysimmersion is 20977.5868 mmpy, 40 days immersion is 17721.9174 mmpy, 65days immersion is 16932. 9071 and 65 days without a medium are 3023.3793mmpy. The more time, the rate of corrosion become more slowly due to theinfluence of corrosion products that have occurred. The corrosion rate without themedium is slower than the corrosion rate with the medium. The types of corrosionthat occurs in concrete iron with swamp soil medium are crevice corrosion andpitting corrosion.

ANALISIS PENGARUH GAYA TERHADAP FATIGUE LIFE BAJA STRUKTURAL PADA PEGAS DAUN MENGGUNAKAN ANALISIS ELEMEN HINGGA Kusmiran, Amirin; Said L, Muh.
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Leaf spring is one of a component of the vehicle which are used to vibration damping caused by the force. Some cases that occur in the vehicle namely overload. This case can affect to fatigue life of steel leaf spring. One of a method that use to fatigue life prediction is high fatigue cycle where this method can be simulated using the finite element method. The number both element and node used in this research where 6961 element and 14726 nodes, respectively. Magnitude of the force used is 80 KN, 100 KN, and 200 KN where thus force are used to prediction of the fatigue life steel leaf spring. The result of this research revealed force 80 KN have the fatigue life longer than force 200 KN and 200 KN which is 106 cycle. In addition, the critical value of the fatigue life 80 KN is smaller than 100 KN, and 200 KN. As such as, the force 80 KN is recommendation as allowed force which use to vehicle. This value is validated by safety factor analysis where the force allowed as 80 KN with safety factor equal to 2.56.

STUDI AWAL FABRIKASI SEL SURYA BERBASIS DYE SENSITIZED SOLAR SEL (DSSC) DENGAN MENGGUNAKAN EKSTRAK BUAH DAN DAUN SIRSAK (ANNONA MURICATA L) SEBAGAI FOTOSENSITIZER Afandi, Irwan; Iswadi, Iswadi; Aisyah, Aisyah; Hernawati, Hernawati
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Dye sensitized solar cell (DSSC) is one type of solar cell base on organic dyies. There are many dye is from extract of plants (leave, fruit and grass) are potential as dye sensitized. In this research, the extract is come from fruit and Leaf of soursop (annona muricata L). This study aims to find great efficiency resulting from the use of extracts of the fruit and leaves of the soursop base DSSCs solar cells. The deposition method are used in this research is the Doctor blade method. Based on the results obtained from this study, DSSC efficiency of the use of soursop leaf extract is equal to 0.00104% with dye absorption spectrum in the UV region of the range 241 nm - 399.5 nm while for Visible area 502.5 nm - 664.5 nm, absorption is highest wavelength at 290 nm with the absorbance of 5.373. As for the sample of soursop fruit is in the amount of 0.005832% with dye absorption spectrum is found only in the UV region of the range of 245.5 nm - 289.5 nm, the wavelength of absorption is highest at 289.5 nm with the absorbance of 5.434. The efficiency of the dye higher soursop fruit extract from the leaves of the soursop.

PENGARUH WAKTU PENYIMPANAN TERHADAP NILAI SUHU, KELEMBABAN DAN KESEGARAN SAYURAN PADA KEMASAN DAUN PISANG Astuti, Nini; Hernawati, Hernawati; Fuadi, Nurul
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

This study was to determine the effect of storage time on temperature, humidity and freshness of vegetables on different packages. This research was carried out by packing green mustard vegetables, fruit tomatoes, and potato fruit using banana leaves and charcoal and without packaging using a thermohygrometer to measure temperature and humidity. Data retrieval is done once a day at 09.00 WITA to complete. The results of this study indicate that there is an effect of storage time on the value of temperature, humidity and freshness of vegetables. The freshness of green mustard vegetables lasts longer with banana leaf packaging than those using charcoal and without packaging. Freshness for fruit tomatoes and curly tomatoes lasts longer on the packaging of banana leaves that use charcoal than without packaging and which use banana leaf packaging. old without packaging compared to packaging and charcoal.

PENGUJIAN KERAPATAN DAN KADAR AIR SERTA PENGUJIAN KOEFISIEN ABSORBSI UNTUK MENGETAHUI PENGARUH VARIASI KETEBALAN DAN FREKUENSI TERHADAP PAPAN AKUSTIK BERBAHAN DASAR DAUN PANDAN DURI (PANDANUS TECTORIUS) Hasan, Hasniati; Sahara, Sahara; Zelviani, Sri
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Penelitian ini bertujuan untuk mempelajari sifat-sifat fisis yang terkait dengan hasil dan kadar air papan akustik berbahan dasar daun pandan duri serta mempelajari variasi ketebalan dan frekuensi terhadap koefisien absorbsi bunyi papan akustik berbahan dasar daun pandan duri. Metode yang digunakan pada penelitian ini yaitu membuat papan akustik dengan dua jenis sampel yaitu sampel tumbuk dan sampel blender dengan ketebalan 0,7 cm, 1,0 cm, 1,2 cm dan 1,5 cm, serta mengukur nilai kerapatan, kadar air dan koefisien penyerapan dengan variasi ketebalan dan frekuensi. Nilai besar yang digunakan adalah 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz dan 4000 Hz. Berdasarkan hasil penelitian yang diperoleh nilai koefisien absorbsi berbanding terbalik dengan ketebalan, di mana semakin tebal suatu bahan maka semakin kecil koefisien absorbsi.Kata Kunci: Daun Pandan Duri, Akustik, Koefisien Absorbsi, Frekuensi, Kerapatan, Kadar Air, Resin poliester

ANALISIS PRODUKTIVITAS GAS HIDROGEN BERDASARKAN ARUS DAN TEGANGAN PADA PROSES ELEKTROLISIS H2O Fitriyanti, Fitriyanti
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

This study designed a HHO generator by separating oxygen (O2) and Hydrogen (H2) gas. The controlled variable is the HHO generator container made of plastic with a width of 12 cm, length 24 cm, height 20 cm in the shape of a rectangle, and filled with aquades as much as 1 litter, the distance between the electrodes is 1.5 mm, the temperature that occurs during the electrolysis process is 33oC to 40oC. The research variables observed were current and voltage used during the H2O electrolysis process, Brown's gas flow rate in the measuring cup (ml / min), the efficiency of the HHO generator, ie the energy or power used in the H2O electrolysis process Based on the research results obtained by the addition of a PWM Controller to increase the voltage can increase the productivity of the hydrogen gas produced. The value of the power needed affects the effectiveness of the electrolysis device, the greater the power needed, the effectiveness will decrease, this is influenced by the increasing amount of electricity consumption required in the operation of the tool. The maximum effectiveness obtained is 8,127% with 36 watts of power.

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Andi Syam Rizal

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+6285242741788

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jft_fisika@uin-alauddin.ac.id

Editorial Address
Jurusan Fisika Gedung Fakultas Sains dan Teknologi Lt. 2

Location
Kab. gowa,

Sulawesi selatan

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Andi Syam Rizal

Contact Email jft_fisika@uin-alauddin.ac.id

Phone +6285242741788

Journal Mail Official jft_fisika@uin-alauddin.ac.id

Editorial Address Jurusan Fisika Gedung Fakultas Sains dan Teknologi Lt. 2

Location Kab. gowa, Sulawesi selatan INDONESIA

Abstract

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Abstract

Contact Name
Andi Syam Rizal

Contact Email
jft_fisika@uin-alauddin.ac.id

Phone
+6285242741788

Journal Mail Official
jft_fisika@uin-alauddin.ac.id

Editorial Address
Jurusan Fisika Gedung Fakultas Sains dan Teknologi Lt. 2

Location
Kab. gowa,

Sulawesi selatan

INDONESIA