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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Sains Materi Indonesia The Journal of Pure and Applied Chemistry Research JFA (Jurnal Fisika dan Aplikasinya) Omega: Jurnal Fisika dan Pendidikan Fisika InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan Science and Technology Indonesia Journal of Physics: Theories and Applications INDONESIAN JOURNAL OF APPLIED PHYSICS Spektra: Jurnal Fisika dan Aplikasinya PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Saptari, Sitti Ahmiatri
Department Of Physics, Faculty Of Science And Technology UIN Syarif Hidayatullah Jakarta
Aerospace Engineering Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Physics Other

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DAMAGE ANALYSIS OF INSULATED PIPES USING DIGITAL DETECTOR ARRAY DAN COMPUTED RADIOGRAPHY Tjahjono, Arif; Pratama, Elfriani Dita; Hanuarjie, Baskan; Saptari, Sitti Ahmiatri; Kumila, Biaunik Niski
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.8, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v8i1.46385

Abstract

The provision of insulation on the pipe functions to prevent heat transfer, but the provision of this insulation causes the pipe to be susceptible to damage due to oxidation. In this study, an analysis of damage to insulated pipes will be carried out using a Digital Detector Array (DDA), Computed Radiography (CR), and XRF. Based on the test results, it is known that the image quality using DDA with a voltage of 240 kV produces the most optimal contrast resolution. The results of the thickness dimension measurement using the DDA method on insulated pipes are 3.38 mm, and on insulated pipes with artificial defects are 4 mm. Compared with the CR method, the values are 3.02 mm and 3.94 mm, respectively. The smaller the difference, the more accurate. From the calculation of the ISee software, it is also known that the DDA method can detect a greater number of defects, namely 24, compared to the CR method, which has only 14. The results of the XRF test show that the insulated pipe includes low-carbon steel with a carbon content of 0.057% and 94% ferrum. This high ferrous content contributes to increased X-ray absorption, greatly affecting the images quality.
Synthesis and Characterization of Activated Carbon From Biomass Waste as A Microwave Absorber Material Nuras, Muhammad Ishaq; Saptari, Sitti Ahmiatri; Tjahjono, Arif; Priambodo, Danang Pamungkas; Haiqal, Amanda
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.7, N
Publisher : Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v7i1.41310

Abstract

Excessive use of electronic technology can result in harmful radiation and electromagnetic interference, which pose risks to human health. To address this issue, researchers developed a material designed to absorb electromagnetic waves. The study focused on synthesizing and characterizing activated carbon derived from biomass waste, including water hyacinth, melinjo seed shells, and chicken eggshells, with the goal of reducing electromagnetic wave interference. The research process involved several key steps: washing the biomass materials, followed by carbonization, activation using a 65% KOH solution, and subsequent characterization of the material. The tests revealed that the activated carbon possessed a porous structure, which is essential for its absorption capabilities. The surface areas measured were 4.378 m²/g for water hyacinth, 2.518 m²/g for melinjo seed shells, and 2.992 m²/g for chicken eggshells. These surface areas are indicative of the material's potential effectiveness. Additionally, the microwave absorption capacities of the activated carbon were recorded as -18.342 dB for water hyacinth, -13.326 dB for melinjo seed shells, and -12.484 dB for chicken eggshells. These findings suggest that the activated carbons are highly effective as microwave absorber materials, with an absorption efficiency ranging between 94% and 98%.Excessive use of electronic technology can result in harmful radiation and electromagnetic interference, which pose risks to human health. To address this issue, researchers developed a material designed to absorb electromagnetic waves. The study focused on synthesizing and characterizing activated carbon derived from biomass waste, including water hyacinth, melinjo seed shells, and chicken eggshells, with the goal of reducing electromagnetic wave interference. The research process involved several key steps: washing the biomass materials, followed by carbonization, activation using a 65% KOH solution, and subsequent characterization of the material. The tests revealed that the activated carbon possessed a porous structure, which is essential for its absorption capabilities. The surface areas measured were 4.378 m²/g for water hyacinth, 2.518 m²/g for melinjo seed shells, and 2.992 m²/g for chicken eggshells. These surface areas are indicative of the material's potential effectiveness. Additionally, the microwave absorption capacities of the activated carbon were recorded as -18.342 dB for water hyacinth, -13.326 dB for melinjo seed shells, and -12.484 dB for chicken eggshells. These findings suggest that the activated carbons are highly effective as microwave absorber materials, with an absorption efficiency ranging between 94% and 98%.
Co-Authors Adhika Junara Karunianto Agung Imaduddin Ahmad Firdaus Ana Hasanah Anggita Prasanti Anugrah Azhar Apriatin, Apriatin Arif Tjahjono Arif Tjahjono Arif Tjahjono Azwar Manaf Bagus Septyanto Bambang Prihandoko Betty Haifa Sarwono Budhy Kurniawan Christin Rina Ratri Deni Shidqi Khaerudini Dewi Lestari Dian Nurdiana Dwi Nanto, Dwi Elvan Yuniarti Erfan Handoko Fajar Arif Kurniawan Fajriah, Nurul Fira Rizky Haiqal, Amanda Hanuarjie, Baskan Hapitanur, Dinda Hilwa Kamilah Juli Hartati Kumila, Biaunik Niski Kurniawan, Budhy Kurniawan, Budhy Laksanawati, Wahyu Dian Lediliocza Lediliocza Loua, Lamin Rene Mar’ah, Mufidatul Muhammad Fajri Maulana Muhammad Umar Faruqi Mujadid Al-Rabi Nada Hashida Lathifah Nadhia Fairuz Syafira Nanang Sudrajat, Nanang Nur Fitriani Nuras, Muhammad Ishaq Nurlaela, Ai Pratama, Elfriani Dita Priambodo, Danang Pamungkas qolby sabrina Rahman, Ikhwan Nur Riser Fahdiran Ryan Rizaldy Sarah Aulia Slamet Priyono Taryana, Yana Titik Lestariningsih Tjahjono, Arif Utami Widyaiswari Widyaiswari, Utami Wisnu Ari Adi Yuniarti, Elvan Yuniarti, Elvan