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All Journal MSI Transaction on Education Scientific Contributions Oil and Gas
Ilham, Nanda
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Humanities Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Education Energy Engineering Social Sciences

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Rancang Bangun Sistem Kendali Beban Listrik Menggunakan Suara Ilham, Nanda; Mahardika, Rahardian; Elviralita, Yoan
MSI Transaction on Education Vol 1 No 4 (2020): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v1i4.38

Abstract

Peralatan listrik merupakan suatu perangkat yang berada pada sebuah rumah/gedung yang mempunyai fungsi sebagai beban pada perlatan instalasi rumah maupun gedung. Sistem pengontrolan peralatan listrik saat sekarang ini pada umumnya masih menggunakan saklar konvensional, penggunaan saklar konvensional ini dinilai belum efektif karena apabila kita ingin mengontrol suatu peralatan listrik kita harus mencari tahu terlebih dahulu keberadaan saklar tersebut pada ruangan. Untuk itu diperlukan merancang sebuah sistem kontrol yang dapat mengontrol dan mengendalikan peralatan listrik yang bersifat mobile yaitu sistem kontrol tersebut dapat mengontrol peralatan listrik dari tempat-tempat yang berbeda. Pada penelitian ini, sistem kontrol yang dirancang dapat mengendalikan 2 buah lampu dan 2 buah stop kontak untuk instalasi domestik. Komponen-komponen yang digunakan yaitu mikrokontroler Arduino Nano sebagai peralatan kendali, Module Bluetooth sebagai peralatan komunikasi dan Relay sebagai saklar penghubung /pemutus arus ke masing-masing peralatan listrik. Peralatan Listrik aktif saat di kontrol melalui smartphone dengan cara memberikan perintah suara On dan akan redup apabila diberi perintah suara off. Dari pengujian yang dilakukan, sistem dapat bekerja dengan baik sesuai dengan yang diharapkan.
Optimizing CO2 Storage Strategies for Enhanced MineralTrapping and Plume Containment in The Aquifer Zoneof an Indonesian Gas Reservoir Iskandar, Utomo Pratama; Arik; Panuju; Grandis, Garindia; Ilham, Nanda
Scientific Contributions Oil and Gas Vol 49 No 2 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i2.2067

Abstract

This study evaluates optimized CO₂ storage strategies in the aquifer zone of the SK gas field in Indonesia to improve plume containment and explore the potential for enhanced mineral trapping. A coupled compositional-flow and reactive-transport simulation workflow was applied using an upscaled reservoir model under a common safe operating pressure envelope and a containment constraint requiring the plume to remain within the aquifer zone over a 120-year simulation period. Three groups of scenarios were examined: well-placement sensitivity (A1–A3), production-assisted injection (B1–B3), and completion-design sensitivity (C1–C3). Among the baseline cases, A3 provided the best plume containment, with the most compact lateral footprint and smallest vertical plume spread, while A1 gave the highest total stored CO₂. Among the production-assisted cases, B2 was the most effective pressure-management option, producing the largest pressure reduction and a modest increase in total stored CO₂. Completion redesign generated the largest storage gains, increasing total stored CO₂ by about 28–33.3% relative to the corresponding baseline cases. Most scenarios maintained the plume confinement within the aquifer zone, although C1 showed localized upward CO₂ occurrence near the free-water level. Overall, the tested strategies improved storage performance, with A3 providing the best plume containment among the baseline cases, B2 delivering the strongest pressure-management benefit and increasing total stored CO₂ by approximately 3.93% relative to A2, and completion redesign producing the largest storage gains, increasing total stored CO₂ by about 28–33.3% relative to the corresponding baseline cases. Mineral trapping increased slightly in the completion-design cases, although it remained a minor component of total storage within the 120-year simulation period.
Co-Authors Arik Grandis, Garindia Iskandar, Utomo Pratama Mahardika, Rahardian Panuju Yoan Elviralita