Vol. 4 No. 1 (2026): (GIJES) Greenation International Journal of Engineering Science (March - May 2026)

All Articles in this Issue from 2 Countries: Nigeria Nigeria (Nnamdi Azikiwe University, University of Benin), and Indonesia (Universitas Dian Nusantara, Universitas Krisnadwipayana, Universitas Riau Kepulauan, and Universitas Swadaya Gunung Jati).

DOI: https://doi.org/10.38035/gijes.v4i1

Published: 2026-03-17

Articles

Evaluation of the Long-Term Economic Implications of Deploying Renewable Energy Versus Traditional Energy Sources in a Nigerian University

Fredrick Nnaemeka Okeagu, Chisom Precious Nwajiaku, Franklin Chinemerem Ezedinachi, Ugochukwu Divine Muoghalu

1-13
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Design and Fabrication of a Smart Waste Bin Using Arduino for Improved Hygiene and Waste Management

Tina Ishioma Francis-Akilaki, Raymond Alex Ekemube

14-24
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Application of Fourier Transform Infrared Spectroscopy and X-Ray Diffraction in the Characterization of Bamboo Stalks

Onimi Ometere Ashama, Tina Ishioma Francis-Akilaki

25-30
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Design of Practical Tools for Achievement of ¾ PK Split AC Cooling System Laboratory Scale Dian Nusantara University

Anggananda Diamond, Komarudin, Denny Prumanto, Taufik Nur Isman, Ilham Syawwal Luthfi

31-43
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Analysis of Material Thickness Effect on Die Clearance in Deep Drawing Process of Inner Body Components

Komarudin, Jacky Mianda Siagian, Taufik Nur Isman, Denny Prumanto, Bintang Ady Pradana

44-51
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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, Marysca Shyntia Dewi, Robinhot Limbong, Deni Prumanto, Moh. Ali Sidik, Ari Pangesti Aji

52-59
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Characteristics of Series and Parallel Centrifugal Pumps

Andrian Saputro, Denny Prumanto, Muhammad Sheva Ramadhan

60-73
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Analysis and Prioritization of Beef Suppliers in Meatball Grinding MSMEs Using the Analytical Hierarchy Process (AHP) Method

Island Dwi Batama Gustyananda, Hery Irwan

74-83
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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

84-96
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