Journal Title	:	Journal of Mechanical Engineering, Science, and Innovation
Abbreviation	:	JMESI
ISSN	:	2776-933X (p) | 2776-3536 (e)
Editor in Chief	:	See Editorial Board
Frequency	:	2 issues per year (April and October)
Time to first decision	:	1 week
Review Time	:	4-8 weeks (in average)
Publisher	:	Institut Teknologi Adhi Tama Surabaya, Indonesia

Journal of Mechanical Engineering, Science, and Innovation is International scientific journals are open to seeking innovation, creativity and novelty. Either letters, research notes, articles, supplemental articles, or review articles. Journal of Mechanical Engineering, Science, and Innovation aims to achieve state-of-the-art in theory and application of this field. Journal of Mechanical Engineering, Science, and Innovation provide platform for scientists and academics across World to promote, share, and discuss new issues and the development of mechanical engineering.

Journal of Mechanical Engineering, Science, and Innovation is a peer-reviewed journal in English published two issues per year (in April and October). Journal of Mechanical Engineering, Science, and Innovation dedicated to publishing quality and innovative research in the field of mechanical engineering and science, thereby promoting applications to engineering problem.

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Vol 5, No 2 (2025): (October)

Table of Contents

Cover and Editorial Page

PDF i-iv

Articles

Simulation and Optimization of Hybrid Energy Systems for Green Hydrogen Production in Industrial Settings Supri Arianto, Yeni Sri Rahayu, Suwarno Suwarno DOI: 10.31284/j.jmesi.2025.v5i2.7795

PDF 1-14

Modelling and Cost Assessment of Hydrogen Production with Hybrid Energy Sources Yeni Sri Rahayu, Supri Arianto, Suwarno Suwarno DOI: 10.31284/j.jmesi.2025.v5i2.7796

PDF 15-29

Performance Enhancement of Motorcycle Engines Using Lemongrass Oil-Based Fuel Additive Pangga Urip Setio Budi, Ade Suhara, Agus Supriyanto, Dhea Intan Patya, Khoirudin Khoirudin, Rizki Aulia Nanda DOI: 10.31284/j.jmesi.2025.v5i2.7778

PDF 30-38

Analysis of the Characteristics of Cow Dung Waste Biopellets with Cassava Peel Starch Adhesive as an Alternative Fuel Indra Kusuma, Agus Sulistiawan, Pelangi Eka Yuwita DOI: 10.31284/j.jmesi.2025.v5i2.8092

PDF 39-51

Comparative Performance of Material Extrusion and Vat Photopolymerization Systems for Automotive Product Yopi Yusuf Tanoto, Nicholas Adriel Sugiarto, Ivan Christian Hernando, Willyanto Anggono DOI: 10.31284/j.jmesi.2025.v5i2.8201

PDF 52-62

Analysis of Tube Expansion Percentage on Microstructure and Hardness of 316L Stainless Steel Tube-to-Tubesheet Connections with GTAW Process Moh. Syaiful Amri, Bachtiar Bachtiar, Moh. Miftachul Munir, Mukhlis Mukhlis, Muhammad Ari, Ilham Kurniawan DOI: 10.31284/j.jmesi.2025.v5i2.8161

PDF 75-84

Impact of Embedded Pipe Configuration in Phase Change Material on Photovoltaic Cooling Lohdy Diana, Abdul Aziz, Arrad Ghani Safitra, Joke Pratilastiarso, Eny Kusumawati DOI: 10.31284/j.jmesi.2025.v5i2.8177

PDF 85-96

Mechanical Strength Analysis of Bamboo Fiber and Glass Powder Reinforced Composites Using Epoxy Matrix as an Alternative Visor M. Shafwallah Al. Aziz. R, Kholis Nur Faizin, Nicolas Gascoin, Yoga Ahdiat Fakhrudi, Pradhana Kurniawan DOI: 10.31284/j.jmesi.2025.v5i2.8162

PDF 97-107

Hardness Analysis, Hydrogen Test and Welding Size on Seamless Steel Pipes API 5L Gr.X65 PSL2 with Post Weld Heat Treatment (PWHT) Pradhana Kurniawan, Darto Darto, Ubbayu Annaufal DOI: 10.31284/j.jmesi.2025.v5i2.7968

PDF 63-74