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p-Index From 2021 - 2026
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All Journal Jurnal Teknik Indonesia (JU-TI) Journal Majelis Paspama
Onyewudiala Ibeawuchi Julius
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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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
Exploring the Utilization of Plastic Sand in Construction to Drive Sustainable Practices and Foster a Circular Economy Nnadikwe Johnson; Okure Unyime Enobong; Onyewudiala Ibeawuchi Julius; Stephen Oyelami
Jurnal Teknik Indonesia Vol. 5 No. 01 (2026): Jurnal Teknik Indonesia (JU-TI) 2026
Publisher : SEAN Institute

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This research explores utilizing waste plastics in construction to promote a circular economy and mitigate plastic waste's environmental footprint in Nigeria's urban centers. Innovative bricks made from low-density polyethylene bags and sand offer thermal and sound insulation properties, pollution control, and cost reduction. The eco-friendly bricks demonstrate beneficial properties: lightweight, porous structure, low thermal conductivity, and high mechanical strength comparable to conventional bricks.The experimental process involved combining cement, sand, and waste plastic/nylon (0-15% by weight) with fly ash, followed by underwater curing and baking. Results show compressive strengths of 19.5 MPa (0% waste), 19.46 MPa (5% waste), 20.3 MPa (10% waste), and 21.1 MPa (15% waste). The bricks exhibit reduced water absorption capacity (0.085-0.34%) and lower efflorescence values.The innovative bricks offer numerous benefits: enhanced strength and durability, reduced environmental impact, and economic value for manufacturers. They contribute to sustainable construction practices, reducing sand extraction and plastic waste accumulation. This research showcases the potential for eco-friendly bricks to enhance energy efficiency in buildings and promote a sustainable ecosystem for plastic waste management.
Unveiling the Transformative Potential of Semi-Lean Flows on Gas Purification Units and Unlocking Energy Utilization: A Comprehensive Analysis of MDEA-Based Processes Johnson, Nnadikwe; Momoh abdulazeez adeyemi; Onyewudiala Ibeawuchi Julius
Journal Majelis Paspama Vol. 4 No. 01 (2026): Journal Majelis Paspama, 2026
Publisher : Journal Majelis Paspama

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  This study explores the impact of semi-lean amine streams on energy consumption in gas purification units, focusing on Methyl Diethanolamine (MDEA)-based processes. By integrating an absorption column split stream and flash unit, we evaluate the potential energy savings and operational efficiency improvements. The results show that the split-flow design reduces amine flow rate from 4616 kmol/hr to 2622 kmol/hr, and total energy consumption decreases from 133,415,348 Btu/hr to 121,584,268 Btu/hr. Additionally, the reboiler duty is reduced from 112,744,989 Btu/hr to 104,574,974 Btu/hr. The integration of absorption column split stream and flash unit offers a promising approach to enhance energy efficiency, reduce operational costs, and minimize environmental impact
Co-Authors Johnson, Nnadikwe Momoh Abdulazeez Adeyemi Nnadikwe Johnson Okure Unyime Enobong Samuel Hanotu Kwelle. Stephen Oyelami