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All Journal Jurnal Pengembangan Energi Nuklir Indonesian Journal of Physics (IJP)
Asril Pramutadi Andi Mustari
Nuclear Physics and Biophysics Research Division Physics Study Program Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesa 10, Bandung 40132, Indonesia
Astronomy Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Social Sciences

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Analysis of Severe Accident in Complex System Reactor Using Moving Particle Semi-Implicit (MPS) Method Rifqa Fikriya Rahasri; Asril Pramutadi Andi Mustari; Anni Nuril Hidayati
Jurnal Pengembangan Energi Nuklir Vol 23, No 2 (2021): Desember 2021
Publisher : Pusat Kajian Sistem Energi Nuklir, Badan Tenaga Nuklir Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/jpen.2021.23.2.6546

Abstract

The very complex structure of nuclear reactors is one aspect of the cause of severe accidents in nuclear reactors. To prevent serious accidents, analysis is needed on the reactor design before the reactor is built. Reactor accident analysis can be done using the Moving Particle Semi-Implicit method. The Moving Particle Semi-Implicit method is excellent in simulating the movement of liquid fuel in a reactor because it can analyze the free surface flow of an incompressible liquid without using a mesh grid. Simulations were carried out using three types of fluids with different viscosities and densities such as water, oil, and wax. The simulation results show that the water takes the fastest time to drain all the particles and the oil takes the longest time. From the simulation results, it can be determined that the kinematic viscosity of a liquid affects its flow velocity.
MPS simulation on melt penetration of CAFÉ experiment at 1200 C Asril Pramutadi Andi Mustari; Iksal Iksal; Sumiati Sumiati
Indonesian Journal of Physics Vol 23 No 1 (2012): Vol. 23 No. 1, July 2012
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1133.352 KB) | DOI: 10.5614/itb.ijp.2012.23.1.5

Abstract

After Fukushima accident, molten relocation inside the reactor is still unclear due to difficulties of detecting internal condition. Eutectic reaction is one of the main mechanism of internal structure liquefaction. Moving particle semi- implicit (MPS) is suitable of analyzing localized phenomena such as eutectic reaction due to its capability on simulating surface with large deformation. In this work, the MPS code for eutectic reaction was developed for calculating melting rate and its relocation process. Based on the MPS model, the CAFÉ core melt experiment was analyzed. For melting penetration rate of molten uranium into stainless steel at 1200 C, two dimensional MPS simulation predicted agreeable result.
Co-Authors Anni Nuril Hidayati Iksal Iksal Rifqa Fikriya Rahasri Sumiati Sumiati