Indonesia Conference Directory

Corresponding Author
Indah Rosidah Maemunah

Institutions
ITB

Abstract
This paper addresses the neutronic analysis in Helium cooled blanket. The blanket design is justified in ITER where illustrated in solid breeder blanket, so the breeder material considered is ceramic solid breeding material that will have to be tritium self-sufficient condition. The Li2O, LiAlO2, Li2ZrO3, Li4SiO3 and Li2TiO3 are candidate of ceramic solid breeder to be tritium breeder in fusion blanket systems. The blanket had to be designed by beryllium as neutron multiplier because its property minimized these neutron losses. The work presented using the Monte Carlo simulation MCNP that developed in Los Alamos National Laboratory (2010) to evaluate the tritium breeding capability. It investigated neutron thermalization and multiplier, tritium production methods, and tritium breeding requirement.

Keywords
Breeding, ceramic solid, fusion, Helium, tritium

Topic
Nuclear and Radiation Computation

Link: https://ifory.id/abstract/mPyTt3uxMfq4

Corresponding Author
Eko Januari Wahyudi

Institutions
Institut Teknologi Bandung

Abstract
Gravity survey using Scintrex CG5 relative gravimeter were conducted on proposed location for CO2 injection. Survey area covers 5x5 km2 surounding Jepon well that proposed as CO2 injection well. Gravity data were obtained at 402 stations on regular grid with 250 m interval spacing. The gravity survey is aimed at providing information of baseline density structure for Carbon Capture and Storage (CCS) pilot project in that area. In this work, we use Second Vertical Derivatives (SVD) of gravity data and describe the design of gravity inverse modeling using iterative calculation. Iterative calculation using gravity data aims to provide interface between density contrasts in the subsurface. Based on our study of gravity data in Gundih field, we can show correlation of SVD results with reverse fault as interpreted with seismic data. We also provide estimation of top structure in study area for Ngrayong Formation and Tawun Formation. At the end of this study, we integrate the interpretation using inverse model of TDEM data.

Keywords
inversion, gravity, TDEM

Topic
Sub surface modelling and computation

Link: https://ifory.id/abstract/q64vyhdYfUjN

Corresponding Author
Muhammad Iqbal Rahmadhan Putra

Institutions
Nuclear Physics and Biophysics Research Division, Department of Physics, Institut Teknologi Bandung.

Abstract
Brazil nut effect is a phenomenon in which large-size particle lift up when vibrated vertically on granular system. This phenomenon has been studied both through experiments and computational simulations. One parameter that can be extracted from this phenomenon is the final height of the large-size particle. However, due to the large number of input parameters that affect the final results, the way to predict is still the subject of study. In this study, we used artificial neural network (ANN) as a method to predict the final results of experiments through molecular dynamic simulations with different input parameters. The different input parameters were created by generating random numbers of the appropriate range. After the simulation was carried out and the final result was obtained, the input and final parameter data were used as a database for training ANN. To get optimal results, a comparison is made of various ANN model architectures.

Keywords
granular, simulation, molecular dynamic, artifical neural network,

Topic
Simulation in general, etc

Link: https://ifory.id/abstract/MwzaNcKDykmf

Corresponding Author
R. Andika Putra Dwijayanto

Institutions
a) Centre for Nuclear Reactor Technology and Safety - BATAN
Puspiptek Complex, OB No. 80, Serpong, South Tangerang 15310, Indonesia

b) Nuclear Physics and Biophysics Research Group, Department of Physics
Bandung Institute of Technology (ITB), Jl. Ganesha No. 10, Bandung 40132, Indonesia

*putra-dwijayanto[at]batan.go.id

Abstract
The existence of Tl-208 in thorium fuel cycle is a double-edged sword. Tl-208 is a strong 2.6 MeV gamma emitter, which acts as an effective proliferation barrier while in the same time complicating the spent fuel handling. To ensure the safety of the latter, the buildup of Tl-208 and its parent isotope, U-232, are necessary to be understood. This paper attempts to analyze U-232 and Tl-208 buildup in the Experimental Power Reactor (Reaktor Daya Eksperimental, RDE) fuel based on thorium cycle, using various U-233 isotopic vectors simulated with ORIGEN2.1 code. The simulation result shows that U-232-contaminated fresh fuels ended up with larger U-232 and Tl-208 activities at the end of cycle (EOC) compared with uncontaminated fresh fuel. However, their U-232 build-up rate are lower and even negative at one case. Then, lower U-233 purity resulted in larger U-232 and Tl-208 activities at EOC. This result implies a considerable difference of isotope buildup between the various U-233 vectors. Consequently, the thorium cycle-based RDE spent fuel handling should consider the isotopic vector of U-233 used in fresh fuel.

Keywords
RDE, thorium, Tl-208, U-232, ORIGEN2.1

Topic
Nuclear and Radiation Computation

Link: https://ifory.id/abstract/3hmyBuQzKXkC

Corresponding Author
Anni Nuril Hidayati

Institutions
a) Doctoral Program of Physics Department,
Faculty of Mathematics and Natural Science, Bandung Institute of Technology
Jalan Ganesha 10, Bandung 40132, Indonesia
*anni.nurilh[at]gmail.com

b) Nuclear Physics and Biophysics Research Division, Physics Department, Faculty of Mathematics and Natural Science, Bandung Institute of Technology
Jalan Ganesha 10, Bandung 40132, Indonesia

Abstract
Series of MPS simulations have been conducted using two-dimensional geometry. The simulation was based on Sudha’s experiment (2018) about initial velocity variations on molten Wood’s Metal (WM). The molten WM would be flowed through nozzle with the diameter was 6 mm. It would impinge to the Woods Metal Plate (WMP) which 270 mm below the nozzle. The WMP diameter was 470 mm. The temperature of molten WM and WMP were set at 573 K and 300 K, respectively. The initial velocity of molten WM was varied at 0,327 m/s, 0,397 m/s, 0,498 m/s in the y-negative direction. The simulation was calculated by using 2D MPS with additional procedures such as heat transfer calculation and defining a new type of wall particle. The results showed some different spread patterns, leading edge and phase fraction change for each initial velocity.

Keywords
velocity, descend, MPS, density, temperature

Topic
Computation of Industrial nuclear application

Link: https://ifory.id/abstract/T4m9g7uGBcHa

Corresponding Author
Bilal El Bari

Institutions
a)Nuclear Physics and Biophysics Research Group, Department of Physics,
Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology
Jalan Ganesha 10, Bandung 40132, Indonesia
*bilalelbari[at]students.itb.ac.id

Abstract
Thermal-hydraulics aspect is one of the crucial aspects that must be considered when reactor design and operation analysis were performed, because this aspect involves security, safety, and efficiency factor that must have to be examined. In this study, thermal-hydraulics aspect of the HTR-10MW and PR-3000MW (which classified into Pebble-Bed Reactor or PBR) were analyzed by reviewing the effect of wall effect using the PEBBLE program, this program using finite-difference numerical method for solving the differential equation of the system. For wall effect, three porosity distribution models are performed to the calculation. From the result of wall effect in HTR-10MW and PR-3000MW, the distribution of porosity from three different models can lead the wall-channeling which can influencing the coolant mass flow profile, both reactor core has different size which induced different respond wall effect. The study concludes that wall effect can induce the thermal-hydraulics aspect of PBR core which is so important to be understanding more the safety ability of PBR core.

Keywords
Finite-Difference, Thermal-Hydraulics Aspect, Pebble-Bed Reactor, Wall Effect

Topic
New and renewable energy computation

Link: https://ifory.id/abstract/fJutkqprhQ9B