Article Per Year (5 Year)
p-Index From 2021 - 2026
0.817
P-Index
This Author published in this journals
All Journal Jurnal Teori dan Aplikasi Fisika Journal of Energy, Material, and Instrumentation Technology
Gurum Ahmad Pauzi
University of Lampung
Astronomy Control & Systems Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
ANALISIS PENGARUH VARIASI PH LARUTAN ACID ZINC PADA SEL VOLTA DUA KOMPARTEMEN DENGAN ELEKTRODE Cu(Ag)-Zn Gurum Ahmad Pauzi; Nilla Anggi Pratiwi; Arif Surtono; Sri Wahyu Suciyati
Journal of Energy, Material, and Instrumentation Technology Vol 3 No 1 (2022): 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.v3i1.88

Abstract

The research was conducted to analyze the effect of variations in pH of acid zinc solution in two compartment voltaic cells with Cu(Ag)-Zn electrodes on the value of electrical characteristics and the resulting corrosion rate. The Cu(Ag)-Zn pair is used to generate voltage and current in the cell with seawater electrolyte and zinc acid solution. The two compartments are lined with salt bridge made from mixture of Al2O3 (aluminum oxide), NaCl (seawater) 1 mole concentration dissolved in “tiga roda” white cement. The voltaic cell consisted of 5 cells arranged in series circuit, for each cell at the cathode (Cu(Ag)) containing ± 250 ml seawater and at the anode (Zn) containing ± 200 ml cid zinc solution which was varied with a pH of 4.5 and 6. The voltaic cell was measured with multitester every 1 hour for 3 days. Based on the research that has been done, it can be concluded that by using an acid zinc electrolyte solution which has a lower pH value, it will increase the value of the electrical characteristics and increase the corrosion rate produced by voltaic cell.
Studi Pengaruh Ukuran Pebble bed Terhadap Termal Hidrolik Pada Thorium Molten Salt Reactor Solid Fuel (TMSR-SF) Menggunakan COMSOL Multiphysics I Gusti Ayu Putu Dwi Ekasari; Yanti Yulianti; Duwi Hariyanto; Gurum Ahmad Pauzi
Jurnal Teori dan Aplikasi Fisika Vol. 14 No. 02 (2026): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v14i02.484

Abstract

Abstract. The development of nuclear energy, particularly in the Thorium Molten Salt Reactor Solid Fuel (TMSR-SF) requires a deep understanding of thermal-hydraulic characteristics, including temperature, flow velocity, and pressure within the reactor core. This research aims to analyze the influence of pebble bed diameter on temperature and pressure, as well as to examine the impact of initial fluid flow conditions on fluid velocity within the TMSR-SF reactor core. Simulations were conducted by the Heat Transfer in Fluids and Laminar Flow modules in the COMSOL Multiphysics application. The simulation results show that the highest temperature difference percentage between the 6 cm and 9 cm pebble beds is 0.7%, while between the 6 cm and 12 cm pebble beds, it is 1.7%. Percentage the highest pressure drop over time was observed in the 6 cm pebble bed at 1.6%, followed by the 9 cm pebble bed at 1.4%, and the 12 cm pebble bed at 1.5%. Additionally, the percentage difference off the initial fluid flow rate decreasing was recorded at 0.09% between the 6 cm and 9 cm pebble beds and 0.26% between the 9 cm and 12 cm pebble beds. The 6 cm pebble bed diameter provides more optimal thermal-hydraulic performance, particularly in terms of temperature stability and fluid flow consistency, which are crucial for the efficiency and safety of TMSR-SF reactor operation Keywords: COMSOL Multiphysics, TMSR-SF, thermal hydraulics, pebble bed, diameter variations
Co-Authors Arif Surtono Duwi Hariyanto I Gusti Ayu Putu Dwi Ekasari Muhammad Syarif Hidayatullah Nilla Anggi Pratiwi Sri Wahyu Suciyati Yanti Yulianti