Vol 24, No 3 (2026)

June

DOI: http://dx.doi.org/10.30811/jpl.v24i3

Table of Contents

Performance evaluation of a laboratory-scale Pelton turbine under variable nozzle distance and valve opening
Aini Lostari, Didik Sugiono, Miftahul Ulum, Umi Kulsum, Yudi Hartono
PDF
385-390
Performance and emission analysis of a Komatsu PC195LC common-rail diesel engine under injector type and spray-angle variations
Yosephus Ardean Kurnianto Prayitno, Sugiyanto Sugiyanto, Ilham Ayu Putri Pratiwi, Braam Delfian Prihadianto, Muhammad Fauzan, Setyawan Adi Nugraha, Josua Aditya Manuel, Sutikno Sutikno, Muhammad Novan Budi Prasetya
PDF
391-397
Experimental comparison of thermal performance in PV–AC and PV–DC solar cooker systems under tropical conditions
Siwan Edi Amanta Perangin Angin, Yogie Probo Sibagariang, Richard A.M Napitupulu, Jonner Manihuruk
PDF
398-403
Design optimization and material selection of automotive bushing arms using FEA under acidic exposure
Ana Nur Oktaviani, Dafit Feriyanto, Haftirman Haftirman, Supaat Zakaria, Dedik Romahadi, Hadi Pranoto, SS Abdulmalik
PDF
404-410
Development and validation of a modified TM25 journal bearing test equipment for load-carrying capacity and frictional torque measurement
Nurcahya Nugraha, Jamiatul Akmal, Martinus Martinus, Ahmad Su'udi, Rizal Nazarrudin, Eko Wahyu Saputra, Wahyu Adani, Fauzan Azima
PDF
411-420
Effect of GTAW current variation on the mechanical properties and microstructure of Al-6061/Al-7075 dissimilar welds
Surya Dharma, Rahmawaty Rahmawaty, Rihat Sebayang, Yetti Meuthia Hasibuan, Syita Nabila Tazkia
DALE
421-428
Effect of alkali fusion temperature on the synthesis and characteristics of nanosilica from silica sand
Muhammad Sadat Hamzah, Muchsin Muchsin, Abdul Muis, Dino Hasyim, Iqrham Dwi Putra Annas, Muhammad Syaiful Fadly, Bakri Bakri, Sri Chandrabakty
PDF
429-433
Predictive efficiency analysis of biomass boilers using tor-refied tropical fruit residues and washed wood waste
Hadi Prayitno, Ricky Syahputra Tarigan, Ahmad Fauzan, Aryanda Fitrah Fardano, Muhammad Hlimy Assydiqie, Murtadho Agung Pratama
PDF
434-442
Vibration-based detection of blower bearing defects using FFT and envelope analysis to improve machine reability
Yusuf Efendi, Sally Cahyati, Soeharsono Soeharsono
PDF
443-449
Engineering of bamboo fiber and glass fiber composites with B₄C filler for fire-resistant structural material applications
Andika Rafi Ryansyah, Andoko Andoko, Riduwan Prasetya
PDF
450-457
Detection and root cause analysis of minor tread defects in tire manufacturing using optical laser profilometry and fault tree analysis
Arwan Suwandoyo, Daisman Purnomo Bayyu Aji
PDF
458-464
Performance assessment of an R290 air conditioning system using hybrid ZnO–SiO₂ nanolubricant
Agung Nugroho, Tabah Priangkoso, Muhammad Alaik Amirullah, Indah Hartati, Fatna Nur Hidayah, Kofi Ampomah Benefo
PDF
465-471
Interfacial modification of high-loading sugar palm fiber/unsaturated polyester biocomposites using alkali–vinyltrimethoxysilane treatment
Fahriadi Pakaya, Yurika Nantan, Marinus S. Tappy, I Nyoman Subawa
PDF
472-481
Evaluation of hardness and dry sliding wear performance of Al/BA-silica sand composites as brake friction materials.
Sukanto Sukanto, Erwanto Erwanto, Husman Husman, Erwansyah Erwansyah, Rodika Rodika, Yudi Oktriadi, Eko Yudo, Ardiansyah Ardiansyah
PDF
482-488
Effects of cooling time, injection pressure, and material type on the mechanical properties of ballun insulator products in injection molding
Muhammad Rifqi Sepvian, Sugeng Hadi Susilo
PDF
489-494
Multimodal vehicle security system based on internet of things: integration of fingerprint authentication, face recognition, and GPS tracking
Dodik Wahyu Wiratama, Muhammad Iman Nur Hakim, Helmi Wibowo, Arief Novianto
PDF
495-505
Remaining useful life prediction of railway wheelsets using a composite wear index under sparse monitoring data
Agustinus Winarno, Ahmad Fauzan Karnadi, Herjuno Rizki Priatomo, Slamet Afif Mansuri, Rioko Aji, Sudianto Sudianto, Miming Kuncoro
PDF
506-520
Performance, energy balance, and emission characteristi-cs of a spark ignition engine fueled with gasoline and LPG
Marthen Paloboran, Thesya Atarezcha Pangruruk, Ismail Rahim, Juhamri Juhamri, Auliya Rahmatul Ummah, Erlyne Nadhilah Widyaningrum
PDF
521-526
Hydrogen enriched combustion in a small spark-ignition engine using a NaOH-based alkaline electrolyzer: experimental evaluation at 0.5 kg/cm² brake load
Suci Rahmadhani Irawan, Ahmad Ilham Wicaksono, Annisa Wulan Sari, Awaludin Martin
PDF
527-531
Experimental investigatopn of temperature-induced performance degradation in BLDC motors for electric vehicle applications
Aris Budi Sulistyo, I Wayan Yogi Arta
PDF
532-536
Effect of hardening holding time and tempering duration on the microstructure and hardness of CHQ 10B21 wire
Melya D. Sebayang, Kimar Turnip
PDF
537-543
Optimizing maintenance scheduling of water distribution pumps using Reliability Centered Maintenance (RCM)
Achmad Muhazir, Mohammad Adam Jerusalem
PDF
544-552
Thermodynamic performance evaluation of a steam turbine at kamojang geothermal power plant using operational data
Firmansyah Firmansyah, Fahrudin Fahrudin, Damora Rhakasywi, Regina Natalindah Lumbantoruan, Fazli Iqbal Pasha, Putty Fauthyda Zahra Hapidzha
PDF
553-561
CFD-based thermal limit prediction of LiFePO4 submarine battery modules using UDF heat generation and hybrid cooling
Fajri Narotama, Prabowo Prabowo
PDF
562-571
Assessment of feedwater hardness effects on thermal efficiency of an industrial fire-tube boiler
Hasan Bashori, Wisnu Subrianto
PDF
572-577
Analysis of Compression Spring Elasticity by Reading the Spring Constant Value Method using a Load Cell
Meri Rahmi
Integrating Mechanical Testing and Finite Element Analysis for Enhanced Failure Risk Prediction in Additively Manufactured Metal Parts
Franka Hendra Sukma, Riki Effendi, Supriyono Hendra Supriyono
Influence of machining parameters on cutting performance and failure mechanisms of coated carbide tools
Fransnazoan Sitorus
Effect of Washing and Torrefaction Pretreatments on Fuel Properties of Rice Husk-Based Bio-Pellets
Alchalil Alchalil, Rizky Iskandar, Adi Setiawan, Zulmiardi Zulmiardi, Athiyah Rana, Azhar Syahputra