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Journal of Materials Exploration and Findings
ISSN 2963-251X · Faculty of Engineering, Universitas Indonesia · 79 artikel di indeks
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Artikel Jurnal
A Sustainable Approach to Tensile Property Enhancement in Sand Casting Via Metal Chip–Sand Composite Molds
The present work focuses on the study of the effect of adding different weight percentages and particle sizes of various metal chips to foundry sand on the tensile strength of aluminum alloy castings, utilizing Taguchi's optimization methodology and regression analysis. Characterization techniques…
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Artikel Jurnal
Risk Identification of Green Hydrogen Supply Chain in Ammonia Industry in Indonesia using Delphi and TOPSIS Methods
The development of green hydrogen in Indonesia, while promising for supporting industrial decarbonization, remains in its early stages and faces various challenges across technical, economic, and regulatory domains. This study aims to identify and prioritize the risks linked to green hydrogen…
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Artikel Jurnal
Assessing Passenger Electric Vehicle Growth Strategies and Their Impacts on Electricity Demand Load and CO2 Emissions in Aceh Province to Achieve Net Zero Emission Target by 2060
The electrification of the transport sector is a crucial pathway for achieving Indonesia’s Net Zero Emissions (NZE) target by 2060. This study assesses the potential impact of passenger electric vehicle (EV) penetration on electricity demand and CO2 emissions in Aceh Province through a…
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Artikel Jurnal
Techno-Economic Analysis of Hybrid Systems as a Solution for Electricity Supply during the Dry Season at the Bakaru Run-of-River Hydropower Plant
Within the South Sulawesi power system (Sulbagsel), the Bakaru Hydro Power Plant serves as a key facility expected to provide consistent and reliable electricity supply. However, since the Bakaru plant operates under a Run of River scheme, its energy output is highly dependent on river discharge…
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Artikel Jurnal
Techno-Enviro-Economic Analysis of Precipitated Calcium Carbonate Production from Carbon Dioxide in Cement Industry Flue Gas and Calcium Hydroxide
CCUS is a technological solution to reduce emissions from the cement industry, which is the second largest CO2-intensive industry. This study aims to analyze technical, economic, and environmental performance of Precipitated Calcium Carbonate (PCC) synthesis in cement industry flue gas. The process…
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Artikel Jurnal
Feasibility Analysis of Thermal Oxidizer to Determine Remaining Life Using Fitness- for-Service Level 3 Method
An aged thermal oxidizer (TOX) in the oil and gas industry necessitates a comprehensive evaluation to ensure its continued safe operation. This study presents a Remaining Life Assessment (RLA) and a Fitness for Service (FFS) evaluation for the four main components of the TOX, in accordance with API…
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Artikel Jurnal
Ultimate Limit State Reliability-Based Approach Life Prediction of an Existing Frame Structure Under Seismic Hazard in Indonesia
Life assessment integrated with Structural Integrity Management (SIM) has been implemented in the oil and gas industry for the past decade to maintain the integrity and safety of an in-service structure used to support hydrocarbon exploration, production, and processing activity. Current structural…
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Artikel Jurnal
Assessment of H2S-Induced Cracking Susceptibility in Steam Line Pipes and Weld Zones During Geothermal Well Construction
The susceptibility of steam line pipes, especially in the HAZ (heat-affected zone) and weldment areas, to hydrogen sulfide in the geothermal industry is crucial to understand from the early stages, particularly during construction. The combination of tensile stress from residual stresses after…
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Artikel Jurnal
Characteristics of Carbonaceous Materials Synthesized from Palm Oil Empty Fruit Bunch Waste Using Ferrocene Catalyst
The synthesis of carbonaceous materials for reduced graphene oxide (rGO) precursors using oil palm empty fruit bunches waste as a carbon source offers a sustainable solution for waste management in the palm oil industry while delivering high-performance materials. The oil palm empty fruit bunches…
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Artikel Jurnal
Integrity Assessment of Shipping Line Pipelines Using Risk-Based Analysis to Determine Risk and Maintenance Strategies
Pipeline Shipping Lines X, Y & Z are classified as critical infrastructure, being the only transportation through the crude oil lifting from P and R location to the transfer station in NM Area. To maintain the workflow of the Shipping Line, integrity assessments and risk evaluation are required to…
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Artikel Jurnal
Remaining Life Analysis of Pipeline Gas with Extreme Value Theory
Energy and chemical companies use pipelines to transfer oil, gas, and other materials from one place to another, within and between their plants. Pipeline integrity is an important concern because pipeline leakage could result in serious economic or environmental losses. Some research has applied…
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Artikel Jurnal
Spin Coater Design with PID Algorithm Using Polynomial Regression Approach and Bias Tuning for TiO2 Deposition Process
The thin-film deposition technique using spin coating offers a cost effective alternative to Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD). The spin-coating process requires precise control of the motor drive system to ensure that the rotational speed, measured in rotations…
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Artikel Jurnal
Implementation of Reliability Centered Maintenance on Crude Booster Pump
Crude oil booster pump is one of the critical equipment in oil refinery operations. In aging plants that have been operating for more than 25 years, where reliability and maintenance issues on equipment often cause operational disruptions and even unplanned shutdowns. This study aims to develop a…
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Artikel Jurnal
Analysis of Leak Testing Planning for Carbon Dioxide Piping Systems in the Development of Carbon Capture, Utilization, and Storage Facilities in the Bintuni Basin
Carbon Capture, Utilization, and Storage (CCUS) technologies have become a key strategic response to global efforts to reduce CO2 emissions. This study presents a leak testing strategy designed for a carbon dioxide (CO₂) piping system as part of a Carbon Capture, Utilization, and Storage (CCUS)…
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Artikel Jurnal
Remaining Life Assessment and Fitness for Service Evaluation of Aging Chemical Reactors in Polyethylene Terephthalate Resin Industry
Aging chemical reactors in the polyethylene terephthalate (PET) resin industry require comprehensive evaluation to ensure safe continued operation. This study conducts a remaining life assessment (RLA) and fitness-for-service (FFS) evaluation on five 30-year-old reactors, based on API 510, API…
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Artikel Jurnal
Fire and Explosion Hazard Risk Analysis of Fuel Transfer Activities at Fuel Terminal “X” Utilizing the Quantitative Risk Analysis (QRA) Method
Fuel transfer operations at Fuel Terminal ‘X’ constitute a critical stage in the energy supply chain, where complex interactions among human, technical, and environmental factors generate inherent risks of fire and explosion. The flammable nature of fuel oil, coupled with the possibility of vapor…
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Artikel Jurnal
Techno-Enviro-Economic Approach for Electrification of Rural and Shrimp Farming Regional Development of An Isolated Island in Indonesia by Utilizing Hybrid Renewable Energy Systems
One of the challenges in developing and archipelagic countries such as Indonesia is maintaining energy demand in rural and isolated areas due to difficulties in electrical distribution. For instance, in areas like Bawean Island, no additional electricity capacity has been introduced in the past…
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Artikel Jurnal
Correlation between Microstructure and Hardfacing Properties with Welding Current Intensity in Reconditioned Low-alloy Steel Material using Submerged Arc Welding (SAW) : A Comprehensive Review
This review studying the correlation between microstructural transformations and mechanical properties in reconditioned low-allow steel material, focusing on the impact of Submerged Arc Welding (SAW) parameters, especially current, on microstructure . The study highlights how variation on welding…
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Artikel Jurnal
A Study of Wear Measurement and Life Prediction of Insert Chute Liner on Gold Ore Processing
Chutes are critical materials handling assets to transport solid particles from one process step to another in mineral processing, coal mining and cement industries. The material transport, because of material characteristics, cause severe wear on internal lining of chutes or bins’ structure. The…
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Artikel Jurnal
Design of a 10-Ton Capacity Solar-Powered Cold Storage at the Cituis Fish Auction Site, Tangerang, Banten, Indonesia
This study presents the design of a 10-ton capacity solar-powered cold storage system for the Cituis Fish Auction Site (TPI) in Tangerang, Indonesia, as a sustainable solution to support the coastal fisheries sector. The system comprises two temperature zones: an anteroom at 5°C and a freezer room…