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Estimation of Geothermal Energy Potential Using Monte Carlo Simulation at Jaboi Geothermal Field, Indonesia Darisma, Dian; Turhamun, Rais Amsal; Masrurah, Zakia; Salsabila, Rifa Salma; Marwan, Marwan
Journal of Physics and Its Applications Vol 8, No 1 (2026): February 2026
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v8i1.25906

Abstract

Geothermal energy is an alternative solution for countries looking for renewable energy. However, energy potential estimation must be estimated before a drilling step to avoid drilling failure or financial loss. Monte Carlo simulation can be performed coupled with a volumetric method to calculate geothermal energy potential. This study aims to estimate the geothermal energy potential of the Jaboi geothermal field. The parameters used in this study were derived from previous studies and various references. Two scenarios are designed to extract the geothermal energy over 25 and 30 years. For the first scenario, 25 years, we obtained 34,51 MWe (P10), 48.28 MWe (P50), and 67.45 MWe (P90). For the second scenario, 30 years, we obtained 28.84 MWe (P10), 40.19 MWe (P50), and 56.20 Mwe (P90). The sensitivity analysis was then performed to determine which parameters significantly affect geothermal energy estimation. The results indicate that reservoir thickness is the most sensitive parameter. Therefore, determining this parameter must be done carefully.
USE OF ELECTRICAL RESISTIVITY FOR MAPPING THE LEACHATE DISTRIBUTION IN BLANG BINTANG SANITARY LANDFILL, ACEH DISTRICT Masrurah, Zakia; Muhni, Akmal; Yanis, Muhammad; Zainal, Muzakir
Indonesian Physical Review Vol. 9 No. 2 (2026)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v9i2.549

Abstract

An increase in waste in urban areas, especially in landfills, can produce leachate that has the potential to pollute the environment. The Blang Bintang waste treatment facility, which uses a sanitary landfill system, is in a hilly area with complex geology dominated by andesite volcanic rocks. This study aims to identify and estimate the level of leachate contamination at the Blang Bintang landfill in Aceh using Electrical Resistivity Tomography (ERT).  Four ERT profiles were measured in the leachate treatment facility area, spanning 180 meters in length and up to 30 meters in depth. ERT data analysis using the Res2dinv software produced an accurate model with an RMS error of 10%-20%. The modeling results indicate the presence of conductive zones (5–150 Ohm.m) near the surface layers of profiles 1 and 2, suggesting leachate contamination. The electrical resistivity tomography (ERT) model further demonstrates leachate accumulation in the subsurface, which poses a potential risk to groundwater quality. In Profile 3, conductive zones (5–200 Ohm.m) are observed along the underground leachate pipeline. For Profile 4, conductive layers (15–250 Ohm.m) are attributed to seepage from the first leachate pond, indicating substantial contamination. This study provides landfill managers with valuable data on subsurface contamination that cannot be identified from surface observations. It also advances geophysical methods for environmental impact assessments.