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Greenation International Journal of Engineering Science

GIJES
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Published by Greenation Research

ISSN : 2986089X EISSN : 29860326 DOI : https://doi.org/10.38035/gijes

Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Mechanical Engineering

Greenation International Journal of Engineering Science (GIJES) is a peer-reviewed journal managed and published by Greenation Research & Yayasan Global Resarch National. GIJES is published four times a year, in March, June, September, and December. GIJES provides a platform for academics, researchers, and practitioners to publish scientific articles. The scope of articles listed in this journal is related to various topics such as Engineering Education, Civil Engineering, Electrical Engineering, Informatics Engineering, Craft Engineering, Architectural Engineering, Industrial Engineering, Mechanical Engineering, Environmental and Safety Technology, Basic Chemical Engineering, and Applied Chemistry, Transportation Engineering, Geology & Mining Engineering, Marine & Naval Engineering, and other related engineering fields.

Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)

Articles 59 Documents

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Design and Fabrication of a Smart Waste Bin Using Arduino for Improved Hygiene and Waste Management Francis-Akilaki, Tina Ishioma; Ekemube, Raymond Alex
Greenation International Journal of Engineering Science Vol. 4 No. 1 (2026): (GIJES) Greenation International Journal of Engineering Science (March - May 20
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v4i1.737

Predominantly in emerging nations, the inevitability for sanitary and efficient waste disposal systems has increased because of rate of waste generation development and urbanization. The aim of this study is to use an Arduino microcontroller and ultrasonic sensor technology to design, fabricate, and assess a low-cost smart waste bin. A HC-SR04 ultrasonic sensor is utilized in the designed and fabricated smart waste bin system to sense user proximity. A servo motor is then automatically stimulated to open and close the bin lid without necessitating physical contact. In order to certify reproducibility in settings with limited resources, hardware, embedded programming, and construction were all completed using simply accessible and reasonably priced components. The operational dependability, response time, and detection accuracy were used for performance evaluation. The experimental outcomes showed constant system performance, less false activation, and reliable lid actuation within the sensing range calibrated. The smart waste bin's design and fabrication greatly advances waste handling proficiency, user convenience, and hygiene. The study establishes that low-cost embedded automation can enhance sanitation infrastructure and offers a scalable foundation for future smart waste management systems.

Analysis of the Impact of Cooling Water Inlet Temperature Changes on Energy Consumption of a Water-Cooled Centrifugal Chiller in Hotel Buildings in Bali Komarudin, Komarudin; Dewi, Marysca Shyntia; Limbong, Robinhot; Prumanto, Deni; Sidik, Moh. Ali; Aji, Ari Pangesti
Greenation International Journal of Engineering Science Vol. 4 No. 1 (2026): (GIJES) Greenation International Journal of Engineering Science (March - May 20
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v4i1.804

Global climate change and the increasing energy demand in the hospitality industry have led to greater attention toward energy efficiency and resource management. In Bali, known as one of the world's most popular tourist destinations, hotel buildings rely on cooling systems to maintain guest comfort. Water-cooled centrifugal chillers are widely used in large buildings, including hotels. This study aims to analyze the effect of variations in cooling water inlet temperature on the performance of a water-cooled centrifugal chiller in a hotel building in Bali. The research object is a Mitsubishi Heavy Industries chiller with a capacity of 250 TR using R134a refrigerant. The method used is an experimental study, focusing only on the chiller unit without considering air conditioning and cooling tower performance. The results show that increasing the cooling water inlet temperature raises condenser pressure and electrical energy consumption. At a cooling load of 72%, maintaining the inlet temperature at 27.48°C (below the maximum specification limit) can save 194.4 kWh of electrical energy per day. However, if the inlet temperature reaches 32.05°C (above specifications), energy consumption increases by 199.2 kWh per day.

Design of Practical Tools for Achievement of ¾ PK Split AC Cooling System Laboratory Scale Dian Nusantara University Diamond, Anggananda; Komarudin; Prumanto, Denny; Isman, Taufik Nur; Luthfi, Ilham Syawwal
Greenation International Journal of Engineering Science Vol. 4 No. 1 (2026): (GIJES) Greenation International Journal of Engineering Science (March - May 20
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v4i1.817

This design aims to design and build a laboratory-scale refrigeration test tool that can be used to test the performance of a cooling system under various operational conditions.The design process for this test equipment involves several stages, from requirements analysis and mechanical and electronic design to fabrication and testing. Some of the features implemented in this equipment include precise temperature control, a digital monitoring system, and the ability to test various types of refrigeration systems. The expected outcome of this test equipment is the ability to provide accurate data on refrigeration system performance, which can then be used to improve energy efficiency and cooling system performance in industrial applications.

Analysis of Material Thickness Effect on Die Clearance in Deep Drawing Process of Inner Body Components Komarudin; Siagian, Jacky Mianda; Isman, Taufik Nur; Prumanto, Denny; Pradana, Bintang Ady
Greenation International Journal of Engineering Science Vol. 4 No. 1 (2026): (GIJES) Greenation International Journal of Engineering Science (March - May 20
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v4i1.818

This study investigates the effect of material thickness on die clearance in the deep drawing process of automotive inner body components. In sheet metal forming, improper parameter selection frequently leads to defects such as wrinkling, burr formation, and fracture, which reduce product quality and production efficiency. Despite extensive studies on stamping processes, the interaction between material thickness and optimal die clearance remains a critical issue in industrial applications. An experimental approach was conducted using a material thickness of 0.8 mm under controlled process conditions. Key parameters, including cutting force, stripping force, drawing force, springback, and material elongation, were measured and analyzed. The results indicate that the optimal die clearance lies within the range of −0.06 mm to +0.11 mm. At this condition, the cutting force reached 39,424 Kgf, while stripping and drawing forces were recorded at 1,971.2 Kgf and 5,708.8 Kgf/mm², respectively. The springback value was measured at 1.8 N/mm², and material elongation reached 3.67 mm. The findings demonstrate that die clearance must be carefully adjusted according to material thickness to ensure stable material flow and minimize defect formation. The novelty of this study lies in the experimental determination of a practical clearance range under actual production conditions. This research provides valuable insights for optimizing die design and improving manufacturing performance.

Analysis of the Effectiveness of Security Information and Event Management (SIEM) Detection Against Advanced Threats Putri, Dilla Ghaisani
Greenation International Journal of Engineering Science Vol. 3 No. 3 (2025): (GIJES) Greenation International Journal of Engineering Science (September - No
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v3i3.849

Advanced Persistent Threats (APTs) pose a serious challenge to information systems security. APTs employ complex and persistent techniques to achieve their goal of infiltrating an organization’s network. APTs often operate undetected for prolonged periods, which can last months or even years. The combination of intricate techniques and long-term persistence is what makes APTs so difficult to detect and counter. Security Information and Event Management (SIEM) is a type of security solution used for cyber threat detection and response. This research analyzed the effectiveness of SIEM in detecting APTs based on parameters such as detection speed, accuracy, and false positive rate. Simulations of repeated attacks demonstrate that SIEM expands security visibility and enhances the network’s ability to respond to attacks rapidly. However, large log volumes present a challenge to the entire system, and optimal configuration incurs a high cost for such analysis.

Characteristics of Series and Parallel Centrifugal Pumps Saputro, Andrian; Prumanto, Denny; Ramadhan, Muhammad Sheva
Greenation International Journal of Engineering Science Vol. 4 No. 1 (2026): (GIJES) Greenation International Journal of Engineering Science (March - May 20
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v4i1.862

A pump is a device used to lift fluids from a lower surface to a higher surface and to move fluids from low pressure to higher pressure. One such device is a centrifugal pump, a dynamic pressure pump widely used to move fluids with high head. The fluids that can be moved are incompressible fluids. In specific applications, pumps can be used to move substances like this centrifugal pump, this is done so that we can use the tool.

Analysis and Prioritization of Beef Suppliers in Meatball Grinding MSMEs Using the Analytical Hierarchy Process (AHP) Method Island Dwi Batama Gustyananda; Hery Irwan
Greenation International Journal of Engineering Science Vol. 4 No. 1 (2026): (GIJES) Greenation International Journal of Engineering Science (March - May 20
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v4i1.878

Analysis and Priority Determination of Beef Suppliers in a Meatball Grinding SME Using the Analytical Hierarchy Process (AHP) Method Competition in the food industry, including bakso (meatball) milling businesses, demands precise decision-making in selecting suppliers for the main raw material, namely meat. Improper supplier selection can negatively impact product quality, operational costs, and business sustainability. The Analytical Hierarchy Process (AHP) method is used in this study to determine the best meat supplier for a meatball milling business at Tiban Market Center. The Analytical Hierarchy Process (AHP) method is used to structure the multi-criteria selection problem hierarchically and conduct pairwise comparison assessments of various criteria, such as availability, price, quality, and delivery timeliness. Three meat suppliers were evaluated as alternatives. Data collection was carried out through interviews, pairwise comparison questionnaires, and observations. The Analytical Hierarchy Process (AHP) analysis results show that the most important criterion is quality (weight 46.58%), followed by Timeliness (27.71%), Price (16.11%), and Availability (9.60%). The consistency test (CR = 0.0146) indicates that the evaluation is valid. Supplier 2 (0.5614) was chosen as the best supplier due to superior quality, although its price was not the lowest. Supplier 2 outperformed Supplier 1 (0.4714) and Supplier 3 (0.2786), respectively. These results provide a data-driven recommendation for the bakso milling business to select the supplier that best aligns with product quality and customer satisfaction.

Cbr Values in the Sub-Grade Layer of Reclamation Fill (Case Study: Patimban Port Project Package 6) Elza Timur Maindah; Herry Hermawan; Aryati indah kusumastuti
Greenation International Journal of Engineering Science Vol. 4 No. 1 (2026): (GIJES) Greenation International Journal of Engineering Science (March - May 20
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v4i1.881

Reclamation work on port projects requires embankment materials with adequate bearing capacity, particularly in soaked areas that are saturated with water and potentially subject to soil strength degradation. In the Patimban Port Development Project (Phase 1–2) Package 6: Container Terminal No. 2 Construction, the use of sand as reclamation embankment requires further assessment using the California Bearing Ratio (CBR) parameter to ensure the soil's suitability as a subgrade layer. Variations in soil characteristics due to the layered embankment process and the potential for liquefaction are important factors influencing soil stability. This study aims to determine the suitability of the subgrade layer's CBR value to existing theory, analyze the effect of the reclaimed material's CBR value on subgrade performance, and assess the suitability of the reclaimed soil as a subgrade layer based on CBR technical parameters. The research method used is quantitative with a descriptive approach. Data were obtained through laboratory testing and field testing using Dynamic Cone Penetration (DCP) at 20 test points. The results of the study indicate that: (1) the CBR value of the subgrade layer is in accordance with existing theory, where all values are above the minimum limit of 6% and follow the theoretical pattern in the form of a decrease in the saturated layer and an increase in depth due to overburden pressure; (2) the CBR value of the reclaimed material has a direct effect on subgrade performance, where a lower CBR value in a particular layer becomes a controlling layer that affects the potential for deformation and overall soil stability; and (3) the reclaimed soil meets the technical requirements as a subgrade layer, with CBR values ranging from 8.98% to 22.64% at various depths, making it suitable for use as a supporting layer for construction.

Analisis dan Peningkatan Efektivitas Mesin Produksi Menggunakan Metode Overall Equipment Effectiveness (OEE) dan Failure Mode and Effects Analysis (FMEA) pada PT Alcotraindo Batam Arif Disa Putra; Hery Irwan
Greenation International Journal of Engineering Science Vol. 4 No. 2 (2026): (GIJES) Greenation International Journal of Engineering Science (June - August
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v4i2.998

In the manufacturing industry, machine effectiveness plays a crucial role in achieving production targets, maintaining product quality, and improving operational efficiency. PT Alcotraindo Batam, as a manufacturing company, relies heavily on production machines to support its operational activities. However, machine downtime, performance losses, and equipment failures can reduce productivity and hinder the achievement of production objectives. Therefore, this study aims to analyze the effectiveness of production machines using the Overall Equipment Effectiveness (OEE) method and identify critical failure factors using Failure Mode and Effects Analysis (FMEA). This research employed a quantitative descriptive approach using production data, machine downtime records, maintenance reports, and quality data collected over a six-month observation period. The OEE analysis showed that the average machine effectiveness value was 76.40%, which is below the world-class standard of 85%. The average Availability Rate, Performance Rate, and Quality Rate were 88.32%, 88.00%, and 98.30%, respectively. Furthermore, the Six Big Losses analysis revealed that Equipment Failure Losses were the largest contributor to productivity losses, accounting for 35.14% of total losses. The FMEA results indicated that conveyor motor overheating was the most critical failure mode, with the highest Risk Priority Number (RPN) value of 320, followed by sensor malfunction (245) and roller wear (210). Based on these findings, several improvement strategies are recommended, including strengthening preventive maintenance programs, conducting routine inspections of critical components, enhancing operator training, and improving machine monitoring systems. The integration of OEE and FMEA proved effective in identifying machine performance losses and determining improvement priorities. The implementation of these recommendations is expected to increase machine effectiveness, reduce downtime, and improve overall production productivity at PT Alcotraindo Batam.

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name M. Rizky Mahaputra

Contact Email greenation.info@gmail.com

Phone +6281210467572

Journal Mail Official greenation.info@gmail.com

Editorial Address Jl. Kapten. A. Hasan, Telanaipura, Kota Jambi, Jambi 36361, Indonesia

Location Kota jambi, Jambi INDONESIA

Abstract

Abstract

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Abstract

Abstract

Contact Name
M. Rizky Mahaputra

Contact Email
greenation.info@gmail.com

Phone
+6281210467572

Journal Mail Official
greenation.info@gmail.com

Editorial Address
Jl. Kapten. A. Hasan, Telanaipura, Kota Jambi, Jambi 36361, Indonesia

Location
Kota jambi,

Jambi

INDONESIA