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All Journal Jurnal Penelitian dan Pengembangan Pendidikan Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Bahana Manajemen Pendidikan Mechatronics, Electrical Power, and Vehicular Technology Jurnal Inovasi Teknologi Pendidikan VANOS Journal of Mechanical Engineering Education Edukasi: Jurnal Pendidikan INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Penelitian Pendidikan IPA (JPPIPA) Rang Teknik Journal Jurnal Inotera Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan Jurnal Pendidikan Kebutuhan Khusus JURNAL EDUCATION AND DEVELOPMENT JURNAL PENDIDIKAN TAMBUSAI Jurnal Ilmiah Pendidikan dan Pembelajaran Journal of Educational Research and Evaluation Journal of Education Technology Mimbar Ilmu Journal on Education JETL (Journal Of Education, Teaching and Learning) Jurnal EDUCATIO: Jurnal Pendidikan Indonesia Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi EDUTEC : Journal of Education And Technology Journal of Applied Engineering and Technological Science (JAETS) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering PAKAR Pendidikan Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Community Empowerment MSI Transaction on Education AEEJ : Journal of Automotive Engineering and Vocational Education Journal for Lesson and Learning Studies Indonesian Gender and Society Journal Juwara : Jurnal Wawasan dan Aksara Mechanical Engineering for Society and Industry Automotive Experiences Journal of Artificial Intelligence and Digital Business Ranah Research : Journal of Multidisciplinary Research and Development JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia J-CoSE: Journal of Community Service & Empowerment Indonesia Journal of Engineering and Education Technology (IJEET) Research in Education and Technology (REGY) Jurnal Polimesin The Indonesian Journal of Computer Science Advance Sustainable Science, Engineering and Technology (ASSET) Edumaspul: Jurnal Pendidikan
Purwanto, Wawan
Universitas Negeri Padang
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Integrated Examines of Hydrolyzers, Compression Ratio, Spark Plugs, and Ethanol Gasoline in Four Stroke Spark Ignition Engine for Potentially Application of Higher Ethanol Application Purwanto, Wawan; Koten, Hasan; Maksum, Hasan; Putra, Dwi Sudarno; Sahaq, Anang Baharuddin
Automotive Experiences Vol. 9 No. 1 (2026): Issue in Progress
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.15499

Abstract

Optimizing combustion parameters by incorporating alternative fuels and modifying the engine's mechanical properties is essential to improving the thermal efficiency and performance of modern internal combustion engines. This study examines the impact of HHO gas utilization, variations in compression ratios, various types of spark plugs, and ethanol gasoline blends on the torque and other characteristics of a 4-stroke fuel-injected single cylinder engine. Hydrogen is generated via electrolysis and used as a supplementary fuel. The Taguchi method was employed to create tests involving four variables: HHO percentage, compression ratio, spark plug type, and ethanol mixture. Testing occurred at 5000 RPM under a load of 1800 Watts. The findings indicated that the combination of 20% HHO, a compression ratio of 16.9:1, platinum spark plugs, and E-80 ethanol yielded optimal engine performance, with thermal efficiency reaching 60% at 7500 rpm. Moreover, the results of deposit content analysis after 50 hours of operation indicated that the ideal design produced fewer deposits than RON 92 gasoline.
Improvement of Teachers' Ability in Creating Modules with Information Technology on Vocational High Schools West Sumatera Hasan maksum; Martias Martias; Wawan Purwanto; Ahmad Arif
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 6 No 2 (2025): Vol 6 No 2 (2025) : AEEJ : Journal of Automotive Engineering and Vocational Educa
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v6i2.250

Abstract

The purpose of this analysis was to look at the teacher's ability to improve the teacher's ability to develop online-based teaching materials. The transition period between the pandemic and after requires strategies to ensure that the learning transition continues to provide students with comfort in their learning. The activity drew 30 people, all of whom were members of the West Sumatra Automotive Engineering Subject Teacher Consultation. They are divided into two categories: online and offline. The online module work created by the participants will be analyzed to determine the effectiveness of the learning and the teacher's ability to create online modules. As a result, participants can create effective learning modules. However, it takes longer for the presenters to teach those who are online how to complete the task.
Development of Short Tutorial Video Learning Media Instagram in the Motorcycle Chassis Maintenance Courses at Vocational High Schools Waruwu, Buala Jefriana; Jalinus, Nizwardi; Wulansari, Rizky Ema; Purwanto, Wawan
The Indonesian Journal of Computer Science Vol. 12 No. 4 (2023): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i4.3345

Abstract

This study uses a Research and Development (R&D) design, with the ASSURE development model. ASSURE development procedures, namely Analyze learner characteristics, State Standards and Objectives, Select Strategies, Technology, Media, and Materials, utilize media and materials, require learner participation, evaluate and revise. The data analysis technique used describes the validity, practicality, and effectiveness of the developed media. The product results obtained from this development research are video tutorial learning media. Based on the results of this study it was concluded that the developed media was declared "valid" by media experts with an average value of 0.77, and also declared "valid" by material experts with an average value of 0.85. The media developed was declared "practical" with a practicality value from the teacher's response with a result of 96.41% and a student response of 88.10%, and the video tutorials produced were effectively used with the results of a comparison of pretest and posttest learning outcomes seen from students' classical completeness of 100% and a gain score of 0.61 in the medium category. From the results of the research conducted, it can be concluded that short video tutorial learning media via Instagram are valid, practical and effective in the subject of maintaining motorcycle chassis in vocational high schools.
Regular maintenance training for electronic fuel injection systems at Vocational High School 1 Lembah Melintang Milana, Milana; Hidayat, Nuzul; Setiawan, Muhammad Yasep; Purwanto, Wawan; Arif, Ahmad
Community Empowerment Vol. 7 No. 12 (2022)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.8045

Abstract

Numerous obstacles must be overcome by vocational schools, particularly in the area of developing technical and practical knowledge. The provision of skills improvement and reskilling for teachers and students, especially in the field of Electronic Fuel Injection (EFI) in gasoline-powered vehicles, is the most fundamental issue at SMKN 1 Lembah Melintang that needs special attention, particularly for Automotive Light Vehicle Engineering (TKRO). The program's goal is to increase teachers' and students' proficiency in the use of tools and procedures for regular maintenance of the EFI system in cars. With a portion of 30:70, the participants will receive both theoretical and practical training. The results of the pretest and posttest show that this program has increased the competence and expertise of teachers and students. This is proved by significant growth from the prior competency in the use of tools and circular work steps, with student gains of 24% and teacher gains of 14%.
Characteristics of Diamond-Like Carbon Coating Using Plasma Assisted Chemical Vapor Deposition on Steel Tool Saifudin, Saifudin; Purwanto, Wawan; Su, Jerry Chih Tsong
Automotive Experiences Vol. 3 No. 1 (2020)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1037.388 KB) | DOI: 10.31603/ae.v3i1.3417

Abstract

High Speed Steel (HSS) tool is commonly used in engineering applications, especially as cutters. The shortfall of this materials are wear and corrosion. However, these can be reduced by coating the surface of the material. Therefore, the purpose of this research is to investigate the effects of Diamond Like Carbon (DLC) coating, quenching heating treatment, and tempering on the physical and mechanical properties of HSS surface. The physical characteristics which will be investigated is the micro structure, while the mechanical characteristics are hardness, wear and corrosion rate. HSS has variations in their chemical composition (% mass): 0.75”“1.5 C, Co >12, V > 5, 4”“4.5 Cr,10”“20 W and Mo. Furthermore, DLC coating uses Plasma Assisted Chemical Vapor Deposition (PACVD) technique with variation in the duration of coating (1,2,3,4,5 and 6 hours) at temperature of 300℃, with pressure variations of 1.0, 1.2, 1.4, 1.6, 1.8 and 2.0 millibar. DLC coating material be treated from methane or ethane gas, which is streamed into the fire with Argon (Ar). The result shows variations in DLC coating and the hardness grade depends on the coating time and pressure variation. DLC coating for a duration of 4 hours under 1.8 mbar pressure can reduce the surface hardness of HSS tool by 62% accompanied by increased ductility.
Co-Authors Abadi, Zainal Abadi Abdul Syukur Alfauzi Abimanyu, Bintang Abratiguin, Joel O. Adam Rasyid Sidiqi Agus Baharudin Agus Baharudin Agus Bahrudi1 Agusrianto, Rival Ahmad Arif Ahmad Arif Ahmad Ilham Ahmad Juanda Ahmad Junaidi Ahmad, Syalsa Billa Aken Derisman Al Ichlas Imran Alamsah Alexsandra, Alexsandra Alfiza Candra Ali Basrah Pulungan Alim Kusuma Ambiyar, Ambiyar Aminuyati Anang Baharuddin Sahaq Anbiya, Rafiqul Andre, Joni Andrizal Andrizal Andrizal Anreski, Vanny Ariadi, Mhd. Fajar Arif Brinaldi Arif, Ahmad Abadi Arya Adhi Pratama Asmar Yulastri Asni, Idrus Asri, Angeline Pramesha Athaya Atsiq Aulia Fajrin Rahmadani Nasution Azani, Magribfa Baehaqi Baharudin, Agus Bahrul Amin Binta Ustafiano Bintha Ustafiano Buala Jefriana Waruwu Budhi Prasetiyo Budi Utomo Wisesa Budi Waluyo Dedi Setiawan Dedi Setiawan Dedy Agustanto Dedy Irfan Desmiarni Desmiarni Donny Fernandez Dori Yuvenda Dwi Sudarno Putra Dwi Sudarno Putra edy susanto Eko Indrawan Eliza Baharo Enjela Dwi Ananda Erik Fernandes Ernal Nofiandri Erzeddin Alwi Fadel Muhammad Fakhri Fadhli Ranuharja Fadila Fadila, Fadila Fadli Randa Fahmi Rizal Fajar Hanifudin Afifi Faris Afif Fatahul Arifin Faulina, Faulina Faunesya, Faunesya Fauzan . Fauzan Fauzan Fauzan Zaharbaini Fauzan, Nauval Fazrin Hidayat Fazrin Hidayat Febiola, Aulia Azhari Febriansyah, Ilham Fenandes, Yose Ganefri Giatman, M Ginola Gunawan, Akmal Guswara, Ade Mukhfir Habibullah Habibullah Hakim, Zaidan Ibnul Hamdani Hamdani Hamid Nasrullah Hamid Nasrullah Hamid Nasrullah Hanapi Hasan Hansi Effendi Haris Abizar, Haris Harris Fedriansyah Hasan Maksum Hendra Dani Saputra Herlando Hernando, Fadli Huda, Asrul Ichsan Elfandy Ichsan Nasution Ichwan Yelfianhar Ikhwan, Aroma Ilham Ilham Ilham Putra Chaniago Ina Marlina Lubis Irma Yulia Basri Jerry Chih Tsong Su Jheri Hermanto Jodhi Ananda Prima Joel O. Abratiguin Juri, Arfin Kholistiyawatin, Nur Koten, Hasan Koto, Rahmat Desman Krismadinata Krismadinata Krismadinata Krismadinata, Krismadinata Kristine Mae Paboreal Dunque kustanrika, irma wirantina Kutni Lasyatta Syaifullah Latifah, Ulfi M Giatman M. Giatman M. Nasir M. Sadly Firmansyah M. Yasep Setiawan Mahdi, Arisul Marlina Marlina Marliyati Marliyati Marliyati Marliyati, Marliyati Martias Martias Martias Martias Martias Masykur Masykur Mayuliardi, Mayuliardi Meri Azmi Milana Milana Muhamad Arpan Muhammad Dava Lencana Muhammad Fikri Muhammad Latifur Rochman Muhammad Mukhbit Nurdin Muhammad Nasir Muhammad Ridwan Muhammad Shiddiq Muhammad Sofyan Muhammad Yanda Muhammad Yasep Setiawan Muhibbudin Muhibbudin Muji Setiyo Mukhlidi Musykir Mulani, Firoj Mulyanto Mulyanto Muslikhin Muslim Muslim Nanang Apriandi Nanda Farhan Mardhatillah Narti, Deswira Nenden Azka Zakhiha Nizwardi Jalinus Nizwardi Zalinus Nofiandri, Ernal Nofrial, Nofi Novia Hendra Nurhasan Syah Nurindah Dwiyani Nursaputro, Septiantar Tebe Nursyafti, Yolana Nuzul Hidayat, Nuzul Okin Johepan Handanu Okvianda, Wendika Ori Kurniawan Padrigalan, Kathleen Ebora Pahlevi, Reza Trio Pratama Saputra, Agung Prayuda, Agus Putra, Benny Adeka Putra, Rido Putra, Rizky Kurnia R. Chandra R. Chandra Rahmad Rahmad Rahmadani Rahmadani Rahmahtrisilvia Rahmahtrisilvia Rahmi, Salsabila Tri Rahul Fuaddi Ramadhan, Miftahuddin Ramadhani, Gustia Ramadhani, Witri Refdinal, Refdinal Remon Lapisa Remon Lapisa Remon Lapisa Ridho Wahyudi Ridwan Rifdarmon Rifdarmon, Rifdarmon Rifdarmon, Rifdarmon Risfendra Risfendra Risha Febriyanti Rizky Ema Wulansari RR. Ella Evrita Hestiandari Rudi Sandra Arifin S.Pd, Zulfadli Sa'adah, Agis Amelia Saifudin Saifudin Santosa, Tomi Apra Saputra, Riko Sari, Yetti Anita Setiawan, M.Yasep Setiawan, Yasep Shyu, Jin Cherng Siman, Siman Sofi, Abdullah Su, Jerry Chih Tsong Sugiarto, Toto Sugiarto, Toto Suharry Sujito Sujito Supriyo Supriyo Syahril Syahril Syahrul Huda Syalsa Billa Ahmad Syalsa Billa Ahmad Thorikul Huda Toto Sugiarto Toto Sugiarto Toto Sugiarto Toto Sugiarto Toto Sugiarto Tung-Kwan Liu Ustafiano, Bintha Vanny Anreski Veby Yansyah, Wahyu Danang Viroza, Al-Thoriq WAGINO Wagino Wahyu Sulistiyo Wahyuningtias, Asri Wakhinuddin Wakhinuddin S Wakhinuddin S Wakhinuddin Wakhinuddin Wakhinuddin Wakhinuddin, Wakhinuddin Wanda Afnison Warsono Putra Waruwu, Buala Jefriana Waskito Waskito Waskito Waskito, Waskito Weny Late Afriza Wulansari, Rizky Ema Yanda Septian Putra Yeka Hendriyani Yodi Agus Pratama Yoga Guntur Sampurno Yose Fenandes Yuliana Yuliana Yuliana Yuliana Yuliandi, Andri Yuniswar, Yuniswar Yusuf Dewantoro Herlambang Yusuf Dewantoro Herlambang Zakki Fuadi Emzain Zikri Fauzi Zikri Zikri ‘Ariqsyah, Muhammad