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PENGARUH SUDUT PENGAPIAN DAN DURASI INJEKSI ECU ARDUINO TERHADAP KINERJA DAN EMISI GAS MOTOR FI Muhamad Andito Yogatama; Taufik Wisnu Saputra; Danar Susilo Wijayanto
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.729

Abstract

The increasing number of motorcycles in Indonesia, exceeding 125 million units in 2022, reflects the high demand for efficient and environmentally friendly vehicles. This trend drives the advancement of combustion system technology, notably the shift from carburetors to Electronic Fuel Injection (EFI). EFI is an electronically controlled fuel delivery system designed to optimize combustion through precise control of ignition timing and fuel injection duration. This system has proven effective in improving engine efficiency and reducing exhaust emissions. However, most mass-produced motorcycles are still equipped with non-programmable ECUs, limiting tuning flexibility. This study evaluates the use of an Arduino-based programmable ECU as a more adaptive alternative. Experiments were conducted on a Honda Vario 110cc FI, varying ignition timing (+2°, +4°, +6°, +8°, +10° BTDC) and fuel injection duration (+5%, +10%, +15%) using Pertamax RON 92 fuel. The results showed an 8% increase in maximum torque (16.98 N.m) at +4° and +5% configuration, and a 3% increase in maximum power at +2° and +10%. The lowest HC and CO emissions were recorded at +2° and +5%, with reductions of 44% and 41%, respectively. The Arduino-based ECU effectively enhances engine performance while maintaining emission efficiency.
PENGARUH SUHU NOZZLE 3D PRINTING TERHADAP KEKUATAN TARIK DAN KEKERASAN PERMUKAAN FILAMEN PP DAUR ULANG Adnan Fatchurrachman; Danar Susilo Wijayanto; Taufik Wisnu Saputra
Scientific Journal of Mechanical Engineering Kinematika Vol 11 No 1 (2026): SJME Kinematika June 2026
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v11i1.780

Abstract

This study aims to investigate the effect of nozzle temperature variations on the tensile strength and surface hardness of 3D-printed specimens using polypropylene (PP) filament derived from instant noodle packaging waste. The filament was produced through an extrusion process at 200°C and subsequently printed into test specimens using Fused Deposition Modeling (FDM) with nozzle temperatures of 190°C, 200°C, and 210°C. Tensile testing was conducted in accordance with ASTM D638 Type IV, while hardness testing was performed using the Shore D method. The results show that nozzle temperature significantly affects the mechanical and physical properties of the specimens. The optimum performance was obtained at 200°C, yielding a tensile strength of 16.83 MPa and a hardness of 47.80 Shore D. At 190°C, both tensile strength and hardness decreased, while at 210°C hardness increased but tensile strength declined due to potential thermal degradation. Therefore, 200°C is identified as the optimum temperature, providing the best balance between mechanical performance and structural stability
Co-Authors Abdul Aziz Nur R. Adila, Mifta Atika Nur Adnan Fatchurrachman Afifah Diyah Nur Rohmah Rohmah Ahmad Yuhsin Sukisno Aisyah Fatkhul Al Azhar, Kahfi Alfariz Bima Alif Adityas Irfansyah Amin Marlinda C. Anggreni, Mahera Anindya Puspitasari Anis Rahmanuri Anis Rahmawati Anis Rahmawati Annisa Salsabila Ghina Muthi Aprilza Vina Ardiansyah, Arenta Wahyu Arga Hartantyadhi Pratama Arif Nurachman Asagi, Florensius Kitaro Athia Tamyizatun N Attala Surya Prima Amanda Atun Novitasari Azmi, Maimunah Bawono Widyo Gumelar Benazir Kartika, Ringgit Budi Harjanto Cucuk Wawan Budiyanto Damayanti, Rahma Deni Andriyansyah Deny Prabowo Devan Hidayat Pratama Dewanto Harjunowibowo Dhian Prasetyo Adjie Diki Cahyo Gumilang Dimas Satria Sandi Pradana Dinda Pradani Widiarti Diva Nanda Permana Putra Dwi Yudha Meydiansyah Efendi, Mohamad Syarifudin Erick Irwansyah Erizka Pangastuti Erni Latifah W Eunike Friska Defvi Febryan Alfianto Nugroho Feny Widyastuti Handang Kurniawan Handayani, Feby Dwi Handy Prabowo Hanif Ibrahim, Fauzan Herman Saputro Herman Saputro Herman Saputro Hidayati, Khusnul Husin Bugis Husin Bugis Husin Bugis Ibnu Siswanto Ika Wardhani, Anisa Iksan Riva Nanda Ilham Octavian Indah Widiastuti Indah Widiastuti Indah Widiastuti Irvan Maulana Isnanto, Irham Hasri July Trianita Widya Rahayu Kartika Aprilya Khaira Fadia Thoriq Khusnul Hidayati Krisnawan Suko Raharjo Kristina Dwi Amanda Kusumawati, Wahyu Latifah Nurul Q. Maedanu Fasola Putra Maghfur, Bagus Romadhoni Maimunah Maimunah Malik Yuari Mardikatama, Bagas Cahya Mohamad Lukmanul Hakim Mohd. Shafie bin Bakar Muhamad Andito Yogatama Muhammad Alfian, Muhammad Muhammad Emir Muhammad Hendar Budi Santoso Muhammad Ilham Nurrahman Muhammad Iqbal Amar Muhammad Kholil Muhammad Rodhi Qoribi Muhsin Muhsin Naafi’ Ussalam Nabila, Urfan Nada Hanifah Putri Nadhirotu Dhihniyya, Khusna Nadiefa A'isy Putri Natasya Puteri Ariska Ngatou Rohman Ngatou Rohman Ngatou Rohman Ngatou Rohman Ngatou Rohman Novi Susilawati Nugroho Agung Pambudi Nugroho Agung Pambudi Nurul Husnaini, Azizah Nur’aini Oktaviyanti Nuurul Maulidiyah Maulidiyah Odilia Tiara Febrianti Pertiwi, Anisa Ayu Philip Purwoko Adi Panuntun Puthut Alfi Syahri Kurniawan Putri Fatma Nur Sholeha Putu Fajar Puspitasari Rahmadzani, Defani Rizky Rahmawati, Karisma Ramanda Ridho Barokah Rani Wulandari Ranto Ranto Ranto Ranto Rindang Indra Riyadi Muslim Rizka Amalia Rosydah Umy Hapsari Safira Firdaus Safitri, Diya Zalfa Aisyah Salma Tyas Ayu Dian Kusuma Saputra, Taufik Wisnu Sidik, Rasyid Sintia Rini Siti Nurrohmah Stephanus Fajar Pamungkas Surya Damayanti, Indira Susy Ermawaty Syivarulli, Riina Taufik Wisnu Saputra Taufik Wisnu Saputra Taufik Wisnu Saputra Taufik Wisnu Saputra Towip, Towip Tri Kresnajaya, Defaja Tuatul Mahfud Widiastuti, Indah Wijayasari D.W. Wijayasari D.W. Wisnu Aristyawan Yufriana, Aisyah Yusnawati, Septian Yuyun Estriyanto