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Analisis Fraksi Volume Bahan Bakar Uranium Karbida Pada Reaktor Cepat Berpendingin Gas Menggunakan SRAC Code Ratna Dewi Syarifah; Nabil Nabhan MH; Zein Hanifah; Iklimatul Karomah; Ahmad Muzaki Mabruri
Jurnal Jaring SainTek Vol. 3 No. 1 (2021): April 2021
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/jaring-saintek.v3i1.333

Analysis of fuel volume fraction with uranium caride fuel in Gas Cooled Fast Reactor (GFR) with SRAC Code is has been done. The calculation used SRAC Code (Standard Reactor Analysis Code) which is developed by JAEA (Japan Atomic Energy Agency), and the data libraries nuclear used JENDL 4.0. There are two calculation has been used, fuel pin cell calculation (PIJ Calculation) and core calculation (CITATION Calculation). In core calculation, the leakage is calculated so the calculation more precise. The CITATION calculation use two type of core configuration, i.e. homogeneous core configuration and heterogeneous core configuration. The power density value of two type core configuration is quite difference. It is better use heterogeneous core configuration than homogeneous core configuration, because the power density of heterogeneous core configuration is flatter than the other. From the analysis of fuel volume fraction, when the volume fraction is increase, the k-eff value is increase. And the optimum design after has been analysis for fuel volume fraction, that is the fuel volume fraction is 49% with a heterogeneous core configuration of three types of fuel percentages, for Fuel1 9%, Fuel2 12% and Fuel3 15%. This reactor is cylindrical, has a core diameter of 240 cm and a core height of 100 cm.

Analisis Fraksi Volume Bahan Bakar Uranium Karbida Pada Reaktor Cepat Berpendingin Gas Menggunakan SRAC Code Ratna Dewi Syarifah; Nabil Nabhan MH; Zein Hanifah; Iklimatul Karomah; Ahmad Muzaki Mabruri; Artoto Arkundato
Jurnal Jaring SainTek Vol. 3 No. 1 (2021): April 2021
Publisher : Fakultas Teknik, Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/jaring-saintek.v3i1.333

Analysis of fuel volume fraction with uranium caride fuel in Gas Cooled Fast Reactor (GFR) with SRAC Code is has been done. The calculation used SRAC Code (Standard Reactor Analysis Code) which is developed by JAEA (Japan Atomic Energy Agency), and the data libraries nuclear used JENDL 4.0. There are two calculation has been used, fuel pin cell calculation (PIJ Calculation) and core calculation (CITATION Calculation). In core calculation, the leakage is calculated so the calculation more precise. The CITATION calculation use two type of core configuration, i.e. homogeneous core configuration and heterogeneous core configuration. The power density value of two type core configuration is quite difference. It is better use heterogeneous core configuration than homogeneous core configuration, because the power density of heterogeneous core configuration is flatter than the other. From the analysis of fuel volume fraction, when the volume fraction is increase, the k-eff value is increase. And the optimum design after has been analysis for fuel volume fraction, that is the fuel volume fraction is 49% with a heterogeneous core configuration of three types of fuel percentages, for Fuel1 9%, Fuel2 12% and Fuel3 15%. This reactor is cylindrical, has a core diameter of 240 cm and a core height of 100 cm.

TRASH CAN-COMPOSTER: ALAT PENCACAH SAMPAH ORGANIK UNTUK PENCACAH SAMPAH LIMBAH PERTANIAN Ratna Dewi Syarifah; Helda Wika Amini; Husnatun Nihayah; Nurul Ulya Luthfiyana
JMM (Jurnal Masyarakat Mandiri) Vol 6, No 3 (2022): Juni
Publisher : Universitas Muhammadiyah Mataram

Abstrak: Sampah merupakan segala sesuatu yang tidak lagi digunakan yang dihasilkan dari aktifitas manusia. Pengolahan sampah harus menjadi perhatian khusus agar tidak menimbulkan dampak negatif baik bagi masyarakat maupun lingkungan. Desa Pujer Baru Kecamatan Maesan Kabupaten Bondowoso belum memiliki fasulitas pembuangan sampah yang memadai. Masyarakat terbiasa membuang sampah di kebun, sungai hingga membakarnya dilingkungan sekitar. Tujuan kegiatan ini adalah untuk meningkatkan peran masyarakat dalam menangani sampah organik memalui sosialisasi dan diskusi pengolahan sampah, serta pelatihan dan pendampingan pengolahan sampah organik mengunakan mesin Trash Can-Composter sebagai komposter pencacah sampah organik untuk menghasilkan pupuk kompos. Kegiatan ini dilaksanakan di Desa Pujer Baru Kecamatan Maesan Kabupaten Bondowoso, Jawa Timur dengan peserta kegiatan merupakan ibu-ibu rumah tangga sejumlah 10 orang. Hasil dari pelatihan ini adalah adanya peningkatan pengetahuan masyarakat terkait pengolahan sampah, terbentuknya prototype tempat pengolahan sampah organik, mesin Trash Can-Composter, serta meningkatnya kemampuan manajemen pengolahan sampah organik melalui pembentukan kompos menggunakan mesin Trash Can-Composter.Abstract: Garbage is anything that is no longer used as a result of human activities. Waste processing must be a special concern so as not to cause negative impacts for both the community and the environment. Pujer Baru Village, Maesan District, Bondowoso Regency does not yet have adequate waste disposal facilities. People are used to throwing garbage in gardens, rivers and burning it in the surrounding environment. The purpose of this activity is to increase the role of the community in dealing with organic waste through socialization and discussion of waste management, as well as training and assistance in processing organic waste using the Trash Can-Composter machine as a composter to enumerate organic waste to produce compost. This activity was carried out in Pujer Baru Village, Maesan District, Bondowoso Regency, East Java with 10 housewives participating in the activity. The results of this training are an increase in community knowledge regarding waste processing, the formation of a prototype organic waste processing site, a Trash Can-Composter machine, and an increase in the ability to manage organic waste through the formation of compost using a Trash Can-Composter machine.

Rigid Procedure to Calculate the Melting Point of Metal Using the Solid-Liquid Phase (Coexistence) Method Artoto Arkundato; Wenny Maulina; Lutfi Rohman; Ratna Dewi Syarifah; Mohammad Ali Shafii
Jurnal Ilmu Fisika Vol 14 No 2 (2022): September 2022
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.14.2.132-140.2022

Melting point, particularly metal, is one of the important data for many applications. For developing new materials, adequate theories for melting point are very crucial. The determination of melting point using the popular phase-change curve method is very easy but usually overestimate. In current work, we determine the melting point of a pure metal (iron) using the method of solid-liquid phase coexistence. For this goal, molecular dynamics simulation was applied to obtain data of trajectories of atoms. Simulation (LAMMPS) and data analysis (OVITO) procedures are strictly applied to obtain the accurate melting point of iron based on the obtained trajectories data. For initial structure design of simulation, we used the ATOMSK program. The melting point of iron obtained using the phase change curve (PCC) method is about 2750 K < TPCC < 3250 K and using the coexistence phase (CP) method is TCP = 2325 K. A more accurate calculation needs to include defects factor in the simulated material and calculation. In this research we use the Morse potential to represent all of the atomic interaction among atoms of Fe material.

ANALYSIS OF CORE CONFIGURATION FOR CONCEPTUAL GAS COOLED FAST REACTOR (GFR) USING OPENMC Iklimatul Karomah; Ahmad Muzaki Mabruri; Ratna Dewi Syarifah; Nuri Trianti
JURNAL TEKNOLOGI REAKTOR NUKLIR TRI DASA MEGA Vol 25, No 2 (2023): June 2023
Publisher : Pusat Teknologi Dan Keselamatan Reaktor Nuklir (PTKRN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/tdm.2023.6879

This study focused on a conceptual core configuration of Gas Cooled Fast Reactor (GFR), as part of a generation IV reactor. Uranium-plutonium carbide (UC-PuC) was used as reactor fuel and a Monte Carlo simulation method using OpenMC has been carried out. This study aims to find the composition of uranium-plutonium carbide fuel to use inside a fuel pin, making up a hexagonal prism fuel assembly arranged to form an entire core. A homogeneous and heterogeneous core configuration was considered in this study, while the plutonium percentage varied from 8%- 15%. For the homogenous core configuration, 10% was found as the optimum plutonium fraction with the value of %âˆ†k/k =1, which was then used as a reference to make up a heterogeneous core configuration. A heterogeneous core with 3 radial fuel regions of F1 using 9% Pu fraction, F2 10%, and F3 11% showed the most stable result for 5-year burn-up with a %âˆ†k/k of 0.7. The %âˆ†k/k value was decreased by 0.3 due to the fission reaction that occurred more evenly in all 3 fuel regions of heterogeneous configuration, reducing the core power peaking factor.Â Keywords: Core configuration, GFR, OpenMC, Reactivity, Fission reaction

Efek Penambahan Protaktinium-231 (Pa-231) pada Nilai Faktor Multiplikasi Efektif Reaktor PWR Berbahan Bakar ThN-U233N Ratna Dewi Syarifah; Meirita Dwi Afriani; Wenny Maulina; Fajri Prasetya
Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) Vol 7 No 2 (2023): Jurnal Ilmu Fisika dan Pembelajarannya (JIFP)
Publisher : Program Studi Pendidikan Fisika, UIN Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/jifp.v7i2.19159

This study aims to determine the optimum percentage of addition of protactinium-231 in a ThN-U233N fueled PWR reactor.In ThN-U233N, uranium-233 is used as the fissile material. Pa-231 as burnable poisson is added to ThN-U233N fuel to reduce the keff value. In this research conducted benchmarking keff values of OpenMC and SRAC codes, homogeneous and heterogeneous core configurations, and the addition of Pa-231 in ThN-U233N fuel. Neutronic analysis was performed using the OpenMC code. In the homogeneous core configuration, the enrichment percentage of U-233 is varied by 1%-15%. Meanwhile, the heterogeneous core configuration uses 3 variations of ring geometry and fuel. The results of the benchmarking of the OpenMC and SRAC code keff values show a maximum error of 1,906%. The homogeneous core configuration produces the optimum value for U-233 enrichment of 3%. Meanwhile, the optimum value of the heterogeneous core configuration is achieved in ring geometry F1 = F2 = F3 = 3 rings with enrichment of U-233 at F1 = 0,5%, F2 = 3%, F3 = 5,5% and addition of Pa-231 of 1.5%. The optimum calculation results has an excess reactivity value 8.37%.

Analisis Perbandingan Desain Geometri Pin Bahan Bakar Heksagonal dan Persegi GFR Menggunakan Bahan Bakar Uranium Karbida Maulana, Muhammad Rizqi; Syarifah, Ratna Dewi; Prasetya, Fajri; Mabruri, Ahmad Muzaki; Arkundato, Artoto; Rohman, Lutfi
Journal of Energy, Material, and Instrumentation Technology Vol 5 No 3 (2024): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v5i3.252

Comparative Analysis of Hexagonal and Square GFR Fuel Pin Geometry Designs with Uranium Carbide Fuel has been carried out. Nuclear reactors from Generation I to IV have developed significantly, with Gas-cooled Fast Reactors (GFR) being a potential candidate for operation by 2030. This study focuses on a GFR reactor utilizing uranium carbide (UC) fuel with a low input power of 300 MWth. The reactor core adopts a cylindrical pancake geometry with 100 cm height and 240 cm diameter dimensions. The objective is to compare the optimal design between hexagonal and square pin cell geometries for GFR-type fast reactors. The study employs the SRAC 2006 software with the JENDL 4.0 database. The research involves homogenous core configuration calculations, heterogeneous core configuration calculations, and variations in fuel fraction to determine optimal data for hexagonal and square pin cell configurations. Results indicate that heterogeneous fuel configurations require fuel fractions of 51% for hexagonal pins and 59% for square pins, with comparable maximum power performance at End of Life (EOL) and Beginning of Life (BOL). It suggests that hexagonal pins are more efficient, requiring less fuel material to maintain reactor criticality over a 20-period burn-up.

Pemanfatan Teknologi Trash Can-Composter (TCC) Berbasis Zero Waste dalam Pengolahan Sampah Organik Penghasil Kompos Amini, Helda Wika; Syarifah, Ratna Dewi; Maulina, Wenny; Shofa, Ghaitsa Zhahira; Sholihah, Athaya Farras; Prasetyani, Tiana Febrianti Eka; Ma'rifah, Binti Ni'matul
Sewagati Vol 8 No 1 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i1.821

Desa Tanah Wulan menjadi sasaran dalam menerapkan gagasan terletak di Kecamatan Maesan, Kabupaten Bondowoso, Provinsi Jawa Timur. Ketertarikan dalam menerapkan gagasan ini karena faktor dari Desa Tanah Wulan tidak memiliki fasilitas tempat pembuangan akhir (TPA), tempat pembuangan sampah (TPS), bahkan sebagian penduduk yang tidak memiliki tempat sampah memadai di rumah karena tingkat ekonomi dan kesejahteraan yang masih rendah. Permasalahan tersebut memicu penduduk membuang sampah rumah tangga ke lahan kosong, sungai, dan dibakar. Selain itu, penduduk dengan mayoritas mata pencarian sebagai petani, ketika musim panen penduduk serempak membuang sampah jerami dengan cara dibakar. Penduduk belum menyadari manfaat sampah organik. Melihat permasalahan Desa Tanah Wulan, dibuatlah alat yang mendukung agar digunakan oleh para penduduk dalam membuat pupuk kompos organik. Kegiatan pengabdian meliputi (1) kaderisasi ibu rumah tangga; (2) sosialisasi manajemen sampah, (3) sosialisasi cara pembuatan pupuk kompos dan praktek penggunaan alat TCC, (4) evaluasi. Hasil pengabdian ini adalah adanya 13 ibu rumah tangga yang bergabung pada program ini sebagai sebagai kader peduli lingkungan yang diketuai oleh Ibu Asnawati. Selanjutnya ibu-ibu telah memahami cara pemilahan sampah dan mampu memanfaatkan sampah organik menjadi kompos dengan bantuan alat Trash Can Composter (TCC).

The Effect of Adding Minor Actinide Fuel Rods on GFR Reactor in Radiopharmaceutical Waste Production Using OpenMC Program Syarifah, Ratna Dewi; Prasetya, Fajri; Mabruri, Ahmad Muzaki; Arkundato, Artoto; Trianti, Nuri
Science and Technology Indonesia Vol. 9 No. 4 (2024): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.4.857-865

GFR is a generation IV reactor based on helium gas refrigeration capable of working at very high temperatures. The fast spectrum in this reactor makes it possible to use nitride-based fuel, namely Uranium Plutonium Nitride (UN-PuN). Adding minor actinide (MA) material to the primary fuel, UN-PuN can maximize reactor performance to near critical from the beginning to the end of burn-up. This study aims to analyze the effect of adding MA fuel rods to the heterogeneous core of 5 fuel variations (F1, F2, F3, F4, F5) on the probability of radiopharmaceutical waste production. The method in this research is to place MA fuel rods in this study using four designs based on the highest neutron flux value in one fuel assembly. The results of the neutron flux calculation show that the reactor’s active core’s central region (F1, F2, F3) needs to be added to MA fuel rods so that the resulting flux is more evenly distributed. The calculation of reactor criticality shows that Np fuel rod design 4 and Am fuel rod design 1 have the best keff value (keff ≈ 1) among other designs. The burn-up of MA fuel rods produces a minimal probability of producing Tc99m, Sr89, Y90, Rh105, Ag111, I231, and Sm15 radiopharmaceutical waste, even less than 1 kg.

Penggunaan Trash Can-Composter (TCC) Untuk Pengolahan Sampah Organik Dan Penghasil Kompos Bagi Warga Desa Tanah Wulan, Bondowoso Wika Amini, Helda; Syarifah, Ratna Dewi; Maulina, Wenny; Shofa, Ghaitsa Zhahira; Sholihah, Athaya Farras; Prasetyani, Tiana Febrianti Eka; Ma'rifah, Binti Ni'matul; Setiawan, Dimas Arif; Syaifullah, Rangga Yudha
Dedikasi:Jurnal Pengabdian kepada Masyarakat Vol. 4 No. 2 (2024): Jurnal Dedikasi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/dedikasi.v4i2.313

Have been done for assistance in waste processing using a trash can-composter (TCC) machine and making compost provided to the residents of Tanah Wulan Village, Maesan District, Bondowoso. This service activity is carried out with the aim of providing education to the community regarding good waste management and recycling waste to be used as a compost planting medium. Through this service activity, the person running this program, called kader ibu-ibu rumah tangga (IRT), was formed in Tanah Wulan Village, chaired by Ibu Asnawati as the leader of the Waste Management. Waste from household waste and harvest residues, such as vegetable waste, straw and rice husks, is chopped using a TCC machine. The chopped results are mixed with cow dung, sawdust and EM4 starter to get useful compost. The content of the compost produced is tested and ready to be applied to plants.Keywords: Trash can-composter, organic waste, compost

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