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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) PROSIDING SEMINAR NASIONAL CENDEKIAWAN Prosiding Seminar Nasional Pakar Abdimas Universal Community Empowerment INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Petro : Jurnal Ilmiah Teknik Perminyakan JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Journal of Earth Energy Science, Engineering, and Technology Jurnal Eksakta Kebumian International Journal of Industrial Innovation and Mechanical Engineering Scientific Contributions Oil and Gas
Asri Nugrahanti
Universitas Trisakti, Jakarta, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Public Health Social Sciences Other

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The causal loop diagram model of traceability system rental equipment in oil and gas supporting companies Asep Endih Nurhidayat; Rina Fitriana; Didien Suhardini; Asri Nugrahanti
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 22, No 5: October 2024
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v22i5.26084

Abstract

Traceability in equipment rental systems enhances security, reliability, and operational transparency by providing the ability to accurately track leased equipment. Challenges in implementing traceability include difficulties in collecting accurate data, the absence of standardized recording practices, and the complexities of integrating technology to ensure complete tracking. This research aims to identify variables affecting the traceability system thinking to improve its efficiency in ongoing business processes. A qualitative descriptive approach is used to offer comprehensive insights into implementing traceability in equipment rental systems, focusing on oil and gas support companies. The study employs the causal loop diagram (CLD) method to dynamically map and identify traceability process variables. Findings show that traceability enables more precise tracking of equipment movement and usage, enhancing inventory management and streamlining maintenance. The CLD method reveals the dynamic relationships between system variables such as equipment availability, maintenance needs, and customer satisfaction, which guide continuous improvement. These results provide stakeholders with valuable insights for optimizing efficiency and service quality in equipment rental operations, particularly in oil and gas support companies. Enhanced traceability can significantly boost operational effectiveness and customer satisfaction.
Potential Use of Kepok Banana Peel Waste as Raw Material for Carboxymethyl Cellulose for Oil and Gas Drilling Fluid Applications Apriandi Rizkina Rangga Wastu; Asep Kurnia Permadi; Deana Wahyuningrum; Asri Nugrahanti
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.v49i2.2070

Abstract

This research aims to evaluate the potential of kepok banana peel as a raw material for carboxymethyl cellulose synthesis and to assess its effects on the rheological properties and filtration of bentonite-based drilling mud. CMC is synthesized through a process of delignification, bleaching, alkalization, and carboxymethylation. CMC characterization includes alpha cellulose content, degree of substitution, purity, pH, FTIR, SEM, and EDS. The obtained CMC was added in drilling mud at concentrations of 3 g, 6 g, and 9 g, and the resulting mud was tested for mud rheology and filtrate volume. The results showed that the alpha-cellulose content was 91.60%, the degree of substitution was 1.0, and the purity was 88.17%, meeting the SNI CMC grade II standard. The application of CMC increased plastic viscosity (12–14 cP), yield point (19–21 lb/100 ft²), and gel strength (8–13 lb/100 ft² for 10 seconds; 12–17 lb/100 ft² for 10 minutes) as the concentration increased. The filtrate volume decreased from 15 ml to 13 ml/30 minutes, and the mud cake thickness decreased from 0.5 mm to 0.3 mm. The pH value was stable in the range of 9. It was concluded that CMC derived from kepok banana peel has the potential to serve as an environmentally friendly drilling mud additive.
Validasi Eksperiment of a 50Wp Off-Grid Solar Power Plant Using a Linear Actuator Solar Tracker System Maulana Adi Prakoso; Muhammad Fajry Setyawan; Komarudin Komarudin; Asri Nugrahanti
International Journal of Industrial Innovation and Mechanical Engineering Vol. 3 No. 3 (2026): August: International Journal of Industrial Innovation and Mechanical Engineeri
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijiime.v3i3.422

Abstract

Electrical energy is essential for daily life in Indonesia, particularly in remote areas where access to the national grid remains limited. Off-grid solar power systems offer a promising solution, although fixed photovoltaic (PV) installations are less efficient because they cannot follow the sun’s movement. This study experimentally evaluated the performance of a 50 Wp off-grid solar power system equipped with a linear actuator-based solar tracker and assessed its structural safety using Finite Element Analysis (FEA) in SolidWorks. A quantitative experimental approach compared a fixed PV system positioned at a 34° angle with a solar tracker system. Data on PV voltage, solar flux, and battery voltage were collected every 30 minutes between 11:00 a.m. and 2:00 p.m. Results showed that the solar tracker maintained more stable power generation and reduced afternoon output losses, producing an average power of 15.83 W compared with 6.79 W from the fixed system. Battery charging was also faster using the tracker. FEA results confirmed that all support structures met safety standards, with maximum stresses below the ASTM A36 yield strength and acceptable Factors of Safety. These findings demonstrate that linear actuator-based solar trackers significantly improve off-grid solar power performance while maintaining structural reliability.
Co-Authors Alief Mahadika Putra Apriandi Rizkina Rangga Wastu Arinda Riswati Asep Kurnia Permadi Bayu Satiyawira Bayu Satyawira Bobby Rifki Saputra Cahaya Rosyidan Citra Wahyuningrum Deana Wahyuningrum Devanda Rizki Abdul Khafid Didien Suhardini Dwi Atty Mardiana Esaim Mustafa Abrahim Omar Fitriana, Rina Gabriella Jasmine Gabriella Jasmine Harin Widiyatni Havid Pramadika Havid Pramadika Henry David Young Henry Young Indah Putri Halim Komarudin Komarudin Lestari Listiana Satiawati M. Kemal Disaputra Maman Djumantara Maulana Adi Prakoso Mohammad Apriniyadi Muhammad Fahdie Muhammad Fajry Setyawan Muhammad Taufiq Fathaddin, Muhammad Taufiq Mustamina Maulani Mustamina Maulani Nurfath Subha Muhammad Nurhidayat, Asep Endih Onnie Ridaliani Prapansya Onnie Ridaliani, Onnie Pauhesti Pauhesti Pri Agung Rakhmanto Rachmi Kartini Rakha Handika Putra ridha Husla Rini Setiati Riza Antares Rizki Akbar Rosmalia Dita Nugraheni Safira Azzahra fira Samsol Samura, Lisa Saptianta Aribawa Sabaris Sartika Sah Putri Sigit Rahmawan Slamet Soeharto Sonny Irawan Sonny Irawan Sonny Irawan Subha Muhammad, Nurfath Suryo Prakoso, Suryo Syamsul Irham Taufan Marhaendrajana, Taufan Yarra Sutadiwiria Zakiah D. Nurfajrin Zakiah Darajat Nurfajrin