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All Journal Jurnal Teknik Mesin Jurnal Energi Dan Manufaktur International Conference on Engineering and Technology Development (ICETD) FLYWHEEL : Jurnal Teknik Mesin Untirta Teknika: Jurnal Sains dan Teknologi Jurnal Mechanical Media Mesin: Majalah Teknik Mesin Jurnal Teknika Syntax Literate: Jurnal Ilmiah Indonesia JTM-ITI (Jurnal Teknik Mesin ITI) Machine : Jurnal Teknik Mesin Jurnal Teknik Mesin Indonesia Journal of Innovation and Future Technology (IFTECH) Journal of Mechanical Engineering, Science, and Innovation INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Civil Engineering For Community Development Jurnal Pengabdian Masyarakat Bangsa Jurnal Inovasi Teknologi Terapan Trends in Mechanical Engineering Research Jurnal Polimesin
Agung Sudrajad
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Sultan Ageng Tirtayasa
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Journal : Jurnal Polimesin

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Effect of ethanol–RON 92 (pertamax) fuel blends on exhaust emissions of a 2000cc gasoline engine Sudrajad, Agung; Caturwati, Ni Ketut; Sunardi, Sunardi; Khairullah, Adhitya
Jurnal Polimesin Vol 23, No 3 (2025): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i3.6692

Abstract

The technology aimed at reducing dependence on fossil fuels and minimizing exhaust emissions involves the use of ethanol as an alternative fuel. This research investigates the effects of blending ethanol with RON 92 (Pertamax) gasoline on the exhaust emissions of a 2000cc four-cylinder gasoline engine. Experiments were conducted using varying ethanol concentrations, and the emissions of carbon monoxide (CO), hydrocarbons (HC), carbon dioxide (CO₂), and oxygen (O₂) were measured and analyzed. Data were presented descriptively and compared. The results indicate that adding ethanol significantly reduces CO and HC emissions. The lowest CO concentration (0.04%) was recorded with a 10% ethanol blend (BE10%), while the lowest HC emission (2316 ppm) occurred at a 15% ethanol blend (BE15%). Conversely, CO₂ emissions increased with ethanol content, peaking at 8.97% for BE15%. These findings demonstrate the potential of ethanol–gasoline blends to lower harmful emissions, particularly CO and HC, while enhancing combustion efficiency, as reflected by the increase in CO₂ levels.
Experimental study of the physical and mechanical properties of particleboard reinforced with eggshell, wood, and bamboo hybrid fillers Sunardi, Sunardi; Pratama, Thairq Al Aziz; Pinem, Mekro Permana; Yusuf, Yusvardi; Sudrajad, Agung; Kustiningsih, Indar
Jurnal Polimesin Vol 24, No 1 (2026): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i1.8291

Abstract

The use of natural resources as particleboard materials has significantly increased due to growing environmental and sustainability concerns. This study aims to evaluate the physical and mechanical properties of particleboard made from three waste materials: eggshell particles, wood particles, and bamboo particles. The composite was formulated with the volume fractions of 10% epoxy resin, 25% Polyvinyl Acetate (PVAc) adhesive, 40% eggshell particles, and a 25% combined bamboo and wood particles. The bamboo-to-wood ratios investigated were 0:25 (B0W25), 12.5:12.5 (B12.5W12.5), and 25:0 (B25W0). Samples were prepared by cold compaction at 3 MPa for 2 hours, followed by curing at 100°C for 1 hour. The samples were evaluated for various physical properties, including density, water absorption, and thickness swelling, as well as mechanical properties such as hardness, flexural strength, flexural modulus, and flexural strain. Since multiple responses were obtained, the Data Envelopment Analysis-based Ranking (DEAR) method was used to assess composite performance. The study found that sample B25W0 exhibited the most optimal performance, with a density of 1.53 ± 0.01 g/cm³, water absorption of 8.47 ± 0.36%, thickness swelling of 6.05 ± 0.89%, hardness of 67.17 ± 0.94 Shore D, flexural strength of 12.90 ± 0.29 MPa, flexural modulus of 1.24 ± 0.03 GPa, and flexural strain of 2.23 ± 0.17%. The improvement is attributed to the alkali treatment of the bamboo particles. These results indicate that eggshell and bamboo hybrid fillers have strong potential as for structural particleboard.
Co-Authors Abel Fuadi Achmad Faisal Ade Ariesmayana Agus Mulyana Alhamidi, A. Ali Alhamidi, Ahmad Ali Aminullah M., Aminullah Ariesmayana, Ade Baidhowi, Ahsan Damarwulan, Liza Mumtazah Danny Faturachman, Danny Deni Ihwanudin Firdaus Deni Iskandar Dhimas Satria Dihan Ahmad Baslayn Dwinanto Dwinanto Dwirani, Fitri Erny Listijorini Erwin, Erwin Firdaus, Deni Ihwanudin Fitri Dwirani Galang Muhamad Refli Hendra, Hendra Imron Rosyadi Imron Rosyadi Imron Rosyadi Imron Rosyadi Indar Kustiningsih Ipick Setiawan Ipick Setiawan Irvan Nurhakim Irwan Tri Prasetyo Khairullah, Adhitya Kurnia Nugraha Kurnia Tri Wijaya Lusiani, Rina Lusiani, Rina Mekro Permana Pinem, Mekro Permana Moh Fawaid Mohammad Auriga Muhammad Rafli Gumay Putra Muswar Muslim Nandang Darmawan Nely Hartika Ni Ketut Caturwati, Ni Ketut Notonegoro, Hamdan Akbar Nurhakim, Irvan Pranata, Anugrah Surya Arya Prasetyo, Irwan Tri Pratama, Thairq Al Aziz Putra, Rizky Kurnia Putra, Styven Handoyo Rafael, Kevin Reni Febriani Reza Anugrah Yulian Rina Lusiani Saefuloh, Iman Salsabila, Unik Hanifah Setiawan, Ipick Setyo Margo Utomo Shafnur Hamdi Shofiatul Ula Sunardi Sunardi Sunardi Sunardi, Sunardi Syarif Abdullah Ula, Shofiatul Wahyudi, Hadi Waldi Firmansyah Widyawati, Widyawati Yuda Permana, Ananto Yusuf, Yusyardi Yusvardi Yusuf Yusyardi Yusuf Zawahar Islamy