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Jurnal Teknik Indonesia (JU-TI)
Published by SEAN INSTITUTE
ISSN : -     EISSN : 29640490     DOI : https://doi.org/10.58471
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering
Jurnal Teknik Indonesia (JU-TI) is published by the SEAN Institute. Jurnal Teknik Indonesia is a journal that contains scientific articles resulting from research, research and trials from researchers to be published as a reference for other researchers. The scope of the Jurnal Teknik Indonesia (JU-TI) is: Mechanical Engineering, Electrical Engineering, Chemical Engineering, Civil Engineering, Industrial Engineering, Computer Engineering, Informatics Engineering, Architecture, Energy and ConveSrsion Technology, Mathematics, Physics, Chemistry, Biology Jurnal Teknik Indonesia (JU-TI) is published 2 times a year (June and December). E-ISSN: 2964-0490
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 30 Documents
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Exploring The Impact Of Temperature Variation On Coconut Seed Oil Yield Nnadikwe Johnson; Mbadike Columbus Asodike; Iheme Chigozie; Chinemerem Joy johnson
Jurnal Teknik Indonesia Vol. 4 No. 01 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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Abstract

Coconut oil is a valuable commodity with diverse applications in food, cosmetics, and pharmaceuticals. The extraction process plays a crucial role in determining the quality and yield of coconut oil. Temperature is a critical parameter that affects the efficiency of the extraction process.This study aimed to investigate the effect of temperature on coconut oil extraction using a solvent extraction method, optimizing the extraction process, and providing insights into the relationship between temperature and oil yield. A laboratory-scale solvent extraction method was employed, where coconut oil was extracted from shredded coconut at different temperatures (30°C, 40°C, 50°C, 60°C, and 70°C) using petroleum ether as the solvent. The yield of oil extracted was measured and calculated as a percentage of the initial weight of coconut used.The results showed a significant increase in oil yield with increasing temperature, with the highest yield obtained at 70°C. The yield increased from 26.29% at 30°C to 32.70% at 70°C, indicating a 24.5% increase. The study demonstrates the importance of temperature optimization in coconut oil extraction, providing valuable insights for the industry.This research contributes to the existing body of knowledge on coconut oil extraction, highlighting the potential for process optimization and improved productivity. The findings have important implications for coconut oil manufacturers, providing a basis for the development of more efficient and effective extraction processes.
Exploring the Potential of (Chrysophyllum-Albidum) Udara Seed Extract as a Natural Corrosion Inhibitor For Mild Steel Nnadikwe Johnson; Iheme Chigozie; Chinemerem Joy Johnson; Ibe Raymond Obinna; Mbadike Columbus Asodike
Jurnal Teknik Indonesia Vol. 4 No. 01 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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Abstract

Mild steels composed by two main elements, they are iron (Fe) and carbon (C) elements which is  widely used in industry  because of its resistance and more affordable in terms of cost  than stainless steel, but their weakness is that they have low corrosion resistance. One way to modify mild steel is by coating them with antioxidant compounds that can delay, slow down, and prevent lipid oxidation process, which is obtained from(Chrysophyllum-Albidum) Udara seed extract. This research work is aimed at producing organic corrosion inhibitor from(Chrysophyllum-Albidum) Udara seed extract. Also, to utilize this organic corrosion inhibitor as a substitute for chemical corrosion inhibitors which contain toxic compounds, and determining the corrosion inhibition efficiency of the Udara seed extract in Hydrochloric acid medium. This was carried out by weighing the mild steel pieces. Udara seed extract was also weighed and added into each of the transparent glass bottles that was used in the experiment. However,  10.0g Udara seed powder was added into bottle 1 containing 0.5m of the dilute tetraoxosulphate (vi) acid. 20.0g to bottle 2, containing the same concentration of the  acid.  30.0g to bottle 3, 40.0g to bottle 4, containing 0.5m of the dilute tetraoxosulphate (vi) acid. And 50.0g to bottle 5 containing the same acid, and Finally, bottle 6 was containing the mild steel metal and the dilute tetraoxosulphate (vi) acid. It was observed that the Udara seed extract effectively inhibited mild steel corrosion in H2SO4 solution. Inhibition efficiency was observed to improve with increase in concentration of the extract. It was generally observed that inhibition efficiency was low at the first hour and with the blank and the first concentration and gradually increases by the preceding hours and concentrations. Weight loss increased with increase in time portraying retardation in the inhibitor efficiency with increase in time.
Exploring The Efficacy Of Black Soaps Derived From Palm Oil And Palm Kernel Oil With Caustic Potash (KOH) Extracted From Plantain Peel Nnadikwe Johnson; Iheme Chigozie; Mbadike Columbus Asodike; Chinemerem Joy Johnson; Ibe Raymond Obinna
Jurnal Teknik Indonesia Vol. 4 No. 01 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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Abstract

This study explores the potential of utilizing agricultural by-products, specifically plantain peels, as a source of caustic potash for producing high-quality black soaps from palm oil and palm kernel oil. The objectives were to evaluate the physicochemical properties and efficacy of these soaps in addressing various skin conditions. Plantain peels were sun-dried, burned, and processed to extract potassium hydroxide, which was then used in soap production. The results show that both soaps exhibited beneficial properties, with the palm kernel oil soap displaying a softer texture. The study highlights the potential of these black soaps in providing effective skincare solutions for common dermatological concerns, while also promoting sustainable utilization of agricultural by-products.
Carbon Accounting at the Shop-Floor: The Integration of Real-Time Energy Monitoring, Process Modeling and LCA for Net-Zero Targets Chukwumuanya Emmanuel Okechukwu; Okpala Charles Chikwendu; Udu Chukwudi Emeka
Jurnal Teknik Indonesia Vol. 4 No. 01 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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Abstract

Achieving net-zero emissions in manufacturing requires operational-level methods that are capable of capturing energy use and carbon intensity with high resolution. Traditional carbon accounting and Life Cycle Assessment (LCA) approaches often lack the temporal granularity required to guide shop-floor decisions. This study introduces a framework that integrates real-time energy monitoring, process modeling, and dynamic LCA to support decarbonization strategies in production environments. The framework was applied to three case studies: CNC machining, injection molding, and additive manufacturing. Results showed that non-productive energy accounted for 18–35% of total consumption, but targeted optimization reduced energy use by 12–23% and emissions by 10–23%. Dynamic LCA improved accuracy, lowering uncertainty by 14–16% compared to static methods. These findings demonstrate that shop-floor-focused carbon accounting can directly contribute to net-zero targets by linking real-time data with sustainability outcomes. The framework not only provides immediate efficiency gains, but also advances Industry 4.0 by embedding carbon intelligence into digital manufacturing systems. Future research should extend validation to energy-intensive sectors and explore integration with digital twins for comprehensive decision support
Unlocking the Functional Mechanics of Gas Turbine Plants: Enhancing Reliability, Efficiency, and Environmental Sustainability Onyewudiala Ibeawuchi Julius; Samuel Hanotu Kwelle.; Nnadikwe Johnson
Jurnal Teknik Indonesia Vol. 4 No. 02 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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Abstract. Gas turbine plants play a vital role in modern society's energy generation, with a focus on reliability, efficiency, and sustainable development. This research aims to investigate and enhance the operational principles of gas turbine plants to achieve these objectives. The study begins by examining the current operational practices and challenges faced by gas turbine plants, highlighting the need for continuous improvement. Factors influencing the reliability of gas turbine plants are analyzed, and strategies for enhancing reliability are proposed to ensure uninterrupted power supply. Efficiency is a key focus of the research, with an evaluation of the performance of gas turbine plants using equations such as η = 1 - (1/r^(γ-1)/γ) to identify areas for optimization. By maximizing efficiency, cost savings can be achieved, and environmental impact reduced, contributing to sustainable development. Environmental sustainability is another crucial aspect of the study, with an assessment of the environmental impact of gas turbine plants and exploration of measures to minimize emissions, resource consumption, and promote eco-friendly practices. Innovative technologies and best practices for improving the operational efficiency of gas turbine plants are investigated, including the use of regenerators with effectiveness ε = (T_hot,in - T_hot,out) / (T_hot,in - T_cold,in) and heat transfer equations Q = m × (h2 - h1). The research culminates in a set of recommendations and guidelines for enhancing the overall performance and sustainability of gas turbine plants, aligning with industry standards and environmental regulations. By achieving the objectives outlined in this research, we aim to contribute to the advancement of gas turbine plant operations, fostering reliable, efficient, and environmentally sustainable energy generation practices for a better future
Pioneering the future of industrial Development:Harnessing Membrane separation Breakthroughs to propel CO2 extractiom from Natural gas into a Sustainable Era Nnadikwe Johnson; Momoh Abdulazeez Adeyemi; Onuabuchi Azunna
Jurnal Teknik Indonesia Vol. 4 No. 02 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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  Natural Gas (NG) processing is a prominent industrial separation process. Among the available techniques, the innovative membrane process shows potential for efficient removal of impurities, including carbon dioxide (CO2). This study focuses on utilizing breakthroughs in membrane separation to drive sustainable CO2 extraction from natural gas. Through comprehensive research and analysis, we explore the effectiveness and feasibility of membrane-based systems in removing CO2 impurities from NG, thus promoting greener and more sustainable industrial practices. Our findings underscore the transformative nature of membrane separation technology, presenting new possibilities for a more environmentally-friendly and sustainable approach to CO2 extraction from natural gas. Natural Gas (NG) processing utilizes various techniques for impurity removal, with the membrane process emerging as a promising option for efficient carbon dioxide (CO2) extraction. This research proposes the integration of a simple mathematical model into ASPEN HYSYS to design a membrane system for CO2/CH4 separation. The study also investigates parameter sensitivities by altering operating conditions, such as feed composition and pressure, as well as membrane properties, including selectivity. By analyzing these variables, we aim to optimize the performance and efficiency of the membrane system, facilitating the sustainable extraction of CO2 from NG. The findings contribute to advancing the design and operation of membrane-based processes for CO2 separation, paving the way for greener and more sustainable industrial practices.  In addition, this study explores various configurations for optimizing the design of the membrane system, including single stage with and without recycle, as well as double stage configurations. The investigation demonstrates that methane recovery can be enhanced through the recycling of the permeate stream and by implementing a double stage membrane system. These findings highlight the potential for improving the efficiency and performance of the membrane system, enabling higher methane recovery rates. By considering different configurations, this research contributes to the development of more effective and sustainable CO2 extraction processes from natural gas.  
Research and Modernization of Inspection and Monitoring Practices for Pipeline, Casing, and Tubing Nnadikwe Johnson; Samuel Hanotu Kwelle
Jurnal Teknik Indonesia Vol. 4 No. 02 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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This research investigates the modernization of inspection and monitoring practices for pipeline, casing, and tubing. The study focuses on the development and implementation of advanced inspection techniques to detect defects and imperfections such as cracks, dents, and diameter reduction, which can have devastating consequences for human safety, the environment, and the soil. The research aims to establish a comprehensive framework for the modernization of inspection and monitoring practices, encompassing the latest technologies and data analytics to ensure the integrity and reliability of pipeline, casing, and tubing infrastructure. The outcome of this research will provide a benchmark for the minimum inspection requirements, setting a new standard for the industry to ensure safe and sustainable operations.
Revolutionizing Lng Plant Construction: A Comprehensive Comparative Analysis and Evaluation of Modular Design Development Versus Stick-Built Approach for Enhanced Efficiency and Cost-Effectiveness Nnadikwe Johnson; Samuel Hanotu Kwelle
Jurnal Teknik Indonesia Vol. 4 No. 02 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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Revolutionizing Lng Plant Construction and its Comprehensive Comparative Analysis And Evaluation Of Modular Design Development Versus Stick-Built Approach For Enhanced Efficiency And Cost-Effectiveness,.Although the utilization of modularization concepts in the LNG industry remains limited, this study focuses on exploring their potential. It is worth noting that modular units typically incur higher costs compared to field erected units due to the additional requirements of structural steel and robustness for transportation purposes.Nevertheless, the increased cost of modularization can often be balanced by conducting the work at the fabrication site instead of on-field construction. This approach reduces the overall project cost by minimizing field construction expenses and shortening the construction schedule. The objective of this paper is to assess and compare LNG modularization options for a newly established LNG facility in comparison to a conventional stick-built plant used as the base case.:The paper delves into various topics related to LNG plant construction, such as the development of modular units, a comprehensive comparison of different options, evaluation of construction schedules and manpower requirements, logistics considerations, and a recommended approach for design and construction. The cost estimates and engineering, procurement, and construction (EPC) schedules are meticulously compared for each option. Additionally, an inshore/near shore gravity base structure (GBS) option is included for further comparison. It is crucial to emphasize that establishing general costs is not possible as each project is distinct andrequires individual study and analysis.:Each project has unique characteristics, resulting in varying shapes of cost curves and break-even points. The outcomes of the feasibility evaluation play a crucial role in determining the extent to which the modular approach to construction is advantageous for the specific project at hand. The evaluation takes into consideration multiple factors to determine the potential benefits of adopting a modular construction approach, allowing decision-makers to make informed choices regarding the project's construction methodology
Advancements in CFD Simulation and Dynamic Modeling for Enhanced Performance of Multi-Compartment Rotor Compressed Combustion Engines Nnadikwe Johnson; Samuel Hanotu Kwelle
Jurnal Teknik Indonesia Vol. 4 No. 02 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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This research explores the potential of dynamic mathematical model simulation for multi-compartment rotor compressed combustion engines to revolutionize power generation by enhancing fuel burning efficiency. By leveraging advanced computational fluid dynamics (CFD) techniques, this study investigates the impact of modifying the engine design to induce turbulence through squish and tumble flows on fuel-air mixing and combustion efficiency. The proposed design features multiple compartments on the rotor crown, comprising three small chambers spaced 120º apart. CFD simulations using FLUENT software demonstrate significant improvements in tumble ratio (35% increase) and squish velocity (31% increase) compared to the base engine. These findings suggest that the modified engine design can enhance fuel-air mixing and combustion performance, leading to improved overall engine efficiency. This research contributes to the development of more efficient and environmentally-friendly power generation technologies, paving the way for groundbreaking advancements in combustion engine design.
Impact of Naoh Modification on the Cellulosic Content of Anthracothorax Viridis Mango Wood Fiber (AVMWF) for Component of Polymer Composite Government Rabonni Mike; Odiakaose Chili; Nweke Onyeka Christian
Jurnal Teknik Indonesia Vol. 4 No. 02 (2025): Jurnal Teknik Indonesia (JU-TI) 2025
Publisher : SEAN Institute

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his research investigated how alkali treatment affects the chemical composition of Anthracothorax Viridis mango wood fiber (AVMWF). The study, conducted on samples from Kinkiso in Taraba State, Nigeria, sought to understand how soaking AVMWF powder in various concentrations of NaOH for different durations would alter its cellulose, hemicellulose, and lignin content. The initial chemical composition of the untreated AVMWF was 38.75% cellulose, 29.89% hemicellulose, and 30.28% lignin. The study found that alkali treatment significantly altered these percentages. The most notable result was a dramatic increase in cellulose content to 70.45%. This was achieved after soaking the AVMWF in a 7.6% (w/v) NaOH solution for 3.2 hours. Under these same conditions, the hemicellulose and lignin content were significantly reduced to 17.91% and 10.64%, respectively. Fourier-transform infrared spectroscopy (FTIR) analysis confirmed the chemical changes. The FTIR spectrum showed that the treated and untreated AVMWF had variant functional groups, specifically confirming changes in the hydroxyl (OH), carboxyl (COOH), carbon-hydrogen (C-H), and carbonyl (C=O) bonds. These spectroscopic results support the conclusion that the NaOH treatment successfully modified the fiber's chemical structure. The findings demonstrate that treating AVMWF with NaOH effectively increases its cellulose content while reducing its hemicellulose and lignin. Because of its new properties, which are similar to other natural fibers used in manufacturing, the study recommends that AVMWF be explored for its potential use in composite material production.

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