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All Journal Jurnal Pendidikan Teknologi dan Kejuruan JINOP (Jurnal Inovasi Pembelajaran) VANOS Journal of Mechanical Engineering Education Edukasi: Jurnal Pendidikan INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Ensiklopedia of Journal Edumaspul: Jurnal Pendidikan Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi 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 Automotive Experiences JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia

Ahmad Arif

Automotive Engineering Department, Universitas Negeri Padang

Author-ID : 2567479

Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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Car Air Conditioner System Simulator Design for Student Practicum Nuzul Hidayat; M Giatman; Mukhlidi Muskhir; Hansi Effendi; Ahmad Arif
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 1 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

This research aims to develop a car air conditioning (AC) simulator. The vehicle's air conditioning system is transferred to a stand panel with an electric motor drive. The selection of an electric motor simplifies operation, maintenance, and practicality because the AC system does not require much time to warm up. The rotation of the electric motor is regulated by an inverter so that the performance of the AC system matches the actual performance. The R and D approach was selected for this investigation. The technique begins with examining an existing simulator, followed by planning, creating, expert validation, and completion of the simulator. The expert validation of the material's feasibility yielded a score of 3.73 with a highly feasible category, a score of 3.45 with a viable category for media, and a score of 3.20 with a feasible category for efficacy. It has been demonstrated that, on average, there is a 36.18 percent improvement in comprehension when this technique is utilized. Tujuan penelitian ini adalah membuat simulator air conditioner (AC) mobil dengan cara memindahkan sistem AC dari mobil ke panel stand dengan penggerak motor listrik. Pemilihan motor listrik adalah untuk mempermudah pengoperasian, perawatan serta kepraktisan karena tidak butuh waktu yang lama untuk pemanasan sistem AC. Sebuah inverter digunakan sebagai pengatur putaran motor listrik, sehingga kinerja sistem AC sesuai dengan kinerja sebenarnya. Metode R and D dipilih dalam penelitian ini. Metode diawali dengan mengamati simulator yang sudah ada, merencanakan, mengembangkan, melakukan validasi simulator oleh ahli, dan finalisasi simulator. Hasil validasi ahli untuk kelayakan materi memperoleh nilai nilai 3.73 dengan kategori sangat layak, untuk media memperoleh nilai 3.45 dengan kategori layak, serta untuk keefektifan dengan nilai 3.20 dengan kategori layak. Pada saat digunakan, terbukti ada kenaikan pemahaman dengan rerata 36.18%.

HUBUNGAN PENERAPAN MEDIA PEMBELAJARAN E-LEARNING DENGAN METODE PEMBELAJARAN BERBASIS PENUGASAN TERHADAP HASIL BELAJAR MAHASISWA TEKNIK OTOMOTIF PADA KULIAH TEKNOLOGI ALAT BERAT Wagino Wagino; M.Riki Rinaldi; Dwi Sudarno Putra; Ahmad Arif
Ensiklopedia of Journal Vol 5, No 3 (2023): Volume 5 No. 3 Edisi 1 April 2023
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

All in-person learning has been replaced with online learning as a result of the Covid-19 pandemic in Indonesia. During the Covid-19 emergency, this aims to fulfill students' rights to obtain education-related services. In the Heavy Equipment Technology course, the purpose of this study is to determine whether assignment-based learning and the use of e-learning media can improve student learning outcomes. In this study, correlational quantitative research of this kind was used. From a total of 124 students, 55 were selected at random. SPSS version 20 is used for analysis in this study, and Windows 10 is used to enter data. The research data for variable (X) account for 94.3 percent of the total. The variable (Y) is included in the very good category for 92.7 percent of the research data. Rcount 0.384 > Rtable 0.261 were the positive category results from correlation theory testing. The t test shows a positive correlation between the application of e-learning learning media and assignment strategies (Tcount 1.906 > Ttable 1.673). The findings demonstrated that the variable of instructional media application with assignment-based learning contributed 13.1%, while other variables influenced 86.9%.Keywords: e learning, Assignment Learning Methods, Learning Results.

Safety riding training for youth oil palm transporter in Persiapan Ranah Melintang village, West Pasaman district M. Yasep Setiawan; Nuzul Hidayat; Ahmad Arif; Wawan Purwanto; Martias Martias; Dwi Sudarno Putra
Community Empowerment Vol 8 No 4 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.8321

Of 120 work accidents and work-related body injury reports, 75% occurred in young transporters. These are caused by young oil palm transporters' lack of understanding and ability to drive safely, especially in oil palm plantation sites with uneven road characteristics, and the vehicle specifications need to be safer to drive. This community service aims to provide knowledge and skills to the people of Persipan Ranah Melintang village, especially young oil palm transporters, regarding driving safety so that it can reduce the number of accidents in this area. The method used in the safety riding training activities uses the lecture method, question and answer, discussion, video demonstrations, and sound and proper practice of riding a motorbike following safety riding rules. The results of this activity showed the participants' enthusiasm for participating in the training, especially when practicing riding motorbikes. In addition, there was an increase in participants' awareness and understanding of the importance of safety riding when driving.

Study on the Addition of A Swirling Vane to Spark Ignition Engines Fueled by Gasoline and Gasoline-Ethanol Wawan Purwanto; Jerry Chih Tsong Su; Muhammad Latifur Rochman; Budi Waluyo; Krismadinata Krismadinata; Ahmad Arif
Automotive Experiences Vol 6 No 1 (2023)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.7981

Although the technology of fuel injection in motorcycles has reached ports and direct injection, motorcycles with carburetors are still used. In this research, the carburetor was modified by adding a swirling vane. This study is intended to provide an explanation regarding engine performance which includes torque, power, mileage, emissions, and engine oil temperature. The study begins with a review of the shape and flow characteristics of the swirling vane based on the largest flow according to previous studies. Then, a swirling vane is built and tested to ensure its optimal shape. The findings were compared with conventional carburetor-based engines that had not been treated. Experiments were also carried out on gasoline-ethanol to obtain optimal results and use them appropriately for alternative fuel applications. A comparison of data on torque, power, exhaust emissions, temperature, and mileage reveals that vehicles modified with swirling vanes have better performance. Furthermore, based on the results of gasoline-ethanol application tests, this design is only suitable for use up to E25.

Project-based Module Development as Teaching Material for Light Vehicle Engine Maintenance: Validity Test Muslim Muslim; Nizwardi Jalinus; Refdinal Refdinal; Ahmad Arif; Wagino Wagino
JINoP (Jurnal Inovasi Pembelajaran) Vol. 9 No. 1 (2023): Mei 2023
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jinop.v9i1.23442

The limitations of teaching materials are not equipped with motivating content and inappropriate learning strategies, which make students feel difficult in mastering the competencies they need. The purpose of this present study is to test the level of validity of the product developed in the form of a learning module. The development procedure used is the ADDIE model. Research data was obtained through observation, interviews, and research questionnaires. The research questionnaire is used to obtain the validity value of the product being developed. The validity test was carried out in the development phase, for this reason, this research stage describes only the development phase. Validity test data was obtained by distributing questionnaires to 5 expert validators consisting of 2 expert lecturers and 3 productive teachers. The results of the study show that teaching materials developed on a project basis have a valid category. Product development will continue with revisions provided by a team of experts. The steps to be taken after the validation stage are the practicality and effectiveness of the product being developed. Teachers can also develop and arrange teaching materials so that the use of this product is not limited to the competencies that are developed. There is a need for further research regarding the development of teaching materials to create teaching materials that can motivate students in learning.

Analysis of Student Obstacles in Online Learning Hendra Dani Saputra; Wawan Purwanto; Dwi Sudarno Putra; M Yasep Setiawan; Ahmad Arif; Alfiza Candra
VANOS Journal of Mechanical Engineering Education Vol 8, No 1 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i1.17351

This study presents an analysis of students' condition in online learning in the autotronics technology course of the Department of Automotive Engineering, Universitas Negeri Padang. This research aims to find obstacle to online learning based on technology, human and environmental factors. This research is a quantitative descriptive study. The subjects of this study were 120 students who took the autotronics technology course at Universitas Negeri Padang, Department of Automotive Engineering, Faculty of Engineering in the 2019/2020 semester. A questionnaire using a Likert scale was used for data collection. Analysis techniques use descriptive analysis techniques and confirmatory factors. The results of confirmatory factor analysis, factors were formed that could explain 76.84% of the variance of the original variables. The human side is the biggest hurdle. 77 of 120 students were less enthusiastic about participating in bold learning, 86 of 120 students struggled to understand the material being bravely taught, and 93 of 120 students had difficulty understanding charts and series in the material, and 87 out of 120 students had difficulty understanding the material. It was difficult to understand the material without doing the lab. The human variable is considered the biggest constraint compared to other variables studied. These constraints are the personality indicators and intelligence indicators.

Pengaruh Campuran Bioaditif Serai Wangi Pada Bensin RON 90 Terhadap Prestasi Mesin Dan Penghematan Bahan Bakar Sepeda Motor Budi Utomo Wisesa; M. Yasep Setiawan; Ahmad Arif; Ari Aryadi; Ichsan Nasution
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 4 No 1 (2023): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v4i1.197

Citronella is a variety of bioadditives that are easily soluble and evaporate into fuel. The use of Bioadditives in fuel aims to improve engine performance and fuel economy. The method used in this research is an experiment with RON 90 Gasoline samples, and a mixture of Citronella Bioadditives with a ratio of S1-1.5%, S2-2.0%, S3-2.5%, S4-3.0%, and S5-3.5%. Engine performance testing using Sportdevice Dyno and impacted engine performance increased by 3.11% on the S4-3.0% type, and maximum torque increase reached 2.03% on the S2-2.0% ratio. The fuel economy test based on the distance traveled with 1000 ml of fuel volume per sample at an average speed of 40-60 km/h was able to achieve a savings of 20.93% on the S5-3.5% sample with a distance of 69.9 Km/l. This is different from RON 90 gasoline without citronella mixture can only be traveled as far as 57.8 km / l. Serai Wangi merupakan ragam bioaditif yang bersifat mudah larut dan menguap ke dalam bahan bakar. Pemakaian Bioaditif dalam bahan bakar bertujuan untuk meningkatkan performa mesin dan penghematan bahan bakar. Metode yang dipakai dalam riset ini adalah eksperimen dengan sampel Bensin RON 90, dan campuran Bioaditif Serai Wangi dengan rasio S1-1,5%, S2-2,0%, S3-2,5%, S4-3,0%, dan S5-3,5%. Pengujian performa mesin mengunakan Sportdevice Dyno dan memberi dampak prestasi mesin meningkat sebesar 3,11 % pada jenis S4-3,0%, dan kenaikan torsi maksimum mencapai 2,03 % pada rasio S2-2,0%. Uji Penghematan bahan bakar berdasarkan jarak yang ditempuh dengan 1000 ml volume bahan bakar setiap sampel pada kecepatan rata-rata 40-60 km/jam mampu meraih penghematan sebesar 20,93% pada sampel S5-3.5% dengan jarak tempuh sejauh 69,9 Km/l. Hal ini berbeda dibandingkan dengan bensin RON 90 tanpa campuran serai wangi hanya mampu ditempuh sejauh 57,8 Km/l.

Analisis Emisi Gas Buang (CO, CO2 dan HC) pada Sepeda Motor FI dengan Variasi Saat Pengapian, Saat Penginjeksian dan Jenis Bahan Bakar M. Sadly Firmansyah; Wawan Purwanto; Hasan Maksum; Ahmad Arif; M. Yasep Setiawan
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 1 No. 2 (2023): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Penelitian ini membahas tentang perubahan nilai kadar CO, CO2 dan HC yang dihasilkan emisi gas buang padaÂ sepeda motor FI dengan penggunaan ECU Programmable (4 variasi perlakuan saat pengapian dan saat penginjeksian) menggunakan 3 jenis bahan bakar di setiap perlakuan . Tujuan penelitian ini adalah mengetahui seberapa besar perubahan penggunaan ECU Programmable di setiap perlakuan terhadap emisi gas buang yang dihasilkan oleh objek penelitian. Jenis penelitian ini adalah penelitian eksperimen. Objek penelitian ini adalah sepeda motor FI. Kadar CO dan HC terendah yang dihasilkan sepeda motor FI dengan penggunaan ECU Programmable diperoleh pada perlakuan saat pengapian 7Â°BTDC dan saat penginjeksian 350Â°ATDC menggunakan bahan bakar Gasohol E30. Kadar CO2 terendah diperoleh pada perlakuan saat pengapian 3Â°BTDC dan saat penginjeksian 350Â°ATDC menggunakan bahan bakar Pertamax Turbo, dimana hasil yang diperoleh menunjukan perubahan yang signifikan setelah melalui uji banding menggunakan uji T dengan taraf signifikan 5%. This study discusses changes in the value of CO, CO2 and HC levels of exhaust emission on FI Motorcycle with the use ECU Programmable (4 variation of ignition timing and injector timing) and use 3 variations fuel in every treatment. The purpose of this study was to determine how much influence the use ECU Programmable and variation of fuel on exhaust emissions produced by the research object. This type of research is experimental research. The object of this research is the FI Motorcycle. The lowest CO and HC level produced by FI Motorcycle with the use of a Programmable ECU is obtained in the treatment at ignition timing of 7Â°BTDC and injector timing 350Â°ATDC using Gasohol E30 fuel, while the lowest CO2 level is obtained at the ignition timing treatment of 3Â°BTDC and when injector timing 350Â°ATDC uses Pertamax Turbo fuel, where the results obtained show significant changes after going through a comparative test using the T test with a significant level of 5%.

Analisis Penggunaan Beberapa Jenis Lampu Utama Sepeda Motor Terhadap Intensitas Cahaya Toto Sugiarto; M. Abdi Rizal; Donny Fernandez; Ahmad Arif
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 1 No. 1 (2023): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Penelitian ini bertujuan untuk mengetahui besarnya intensitas cahaya yang dihasilkan oleh lampu sepeda motor yang memenuhi persyaratan yang ditetapkan oleh pemerintah. Pada penelitian ini digunakan tiga jenis lampu yaitu standar (pijar), LED, dan halogen untuk mengukur intensitas cahaya yang dihasilkan oleh sepeda motor Satria FU 150. Penelitian ini menggunakan metode eksperimen. Pengambilan data penelitian dilakukan tiga kali pada tiap pengujian, kemudian data tersebut dimasukkan ke dalam tabel data penelitian serta mengahasilkan grafik, dan selanjutnya dilakukan analisis data hingga ditemukan hasil intensitas cahaya pada setiap lampu. Berdasarkan hasil penelitian, lampu yang memenuhi standar atau aturan yang ditetapkan PP 55 tahun 2012 pasal 70 huruf a adalah lampu led. Lampu utama jenis LED menghasilkan 13.000 candela untuk lampu dekat, dan lampu jauh menghasilkan 36.333 candela. This study aims to determine the amount of light intensity produced by motorcycle lights that meet the requirements set by the government. In this study, three types of headlamps were used, namely standard (incandescent) headlamp, LED, and halogen headlamp to measure the intensity of light produced by the Satria FU 150 motorcycle. This study used an experimental method. Retrieval of research data was carried out three times for each test, then the data was entered into the research data table and produced a graph, and then data analysis was carried out until the light intensity results were found for each lamp. Based on the research results, lamps that meet the standards or rules in Republic of Indonesia government regulation number 55/2012 article 70 are LED lamps. Where the led light produces 13,000 candela near light, the far light produces 36,333 candela.

Optimasi Sistem Pengapian Terhadap Emisi Gas Buang Sepeda Motor 4 Langkah Dengan Metode Taguchi Ilham Putra Chaniago; Wawan Purwanto; Rifdarmon; Ahmad Arif
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 1 No. 2 (2023): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Pengguanaan bahan bakar minyak yang tinggi dari tahun ke tahun dapat menyebabkan krisis bahan bakar minyak dikemudian hari. Sehingga banyak orang mencoba untuk membuat bahan bakar alternatif agar dapat mengurangi penggunaan bensin sebagai bahan bakan utama. Biogasoline merupakan salah satu solusi untuk mengatasi krisis bahan bakar minyak di kemudian hari. Penelitian ini bertujuan mencari hasil optimal dari sistem pengapian (jenis busi, jenis koil, waktu pengapian) dan campuran bensin dan ethanol (biogasoline) terhadap emisi gas buang sepeda motor 4 langkah dengan menggunakan metode taguchi. Berdasarkan hasil penelitian yang telah dilakukan, hidrokarbon (HC) mendapat respon rata-rata optimal yaitu faktor A2 (317,78), B2 (325,89), C1 (299,22) dan D2 (316,33). Sedangkan untuk respon rata-rata optimal karbon monoksida (CO) yaitu faktor A3 (1,28), B1 (1,26), C3 (1,19) dan D2 (1,26). The use of high fuel oil from year to year can cause a fuel oil crisis in the future. So many people try to make alternative fuels in order to reduce the use of gasoline as the main fuel. Biogasoline is one of the solutions to overcome the fuel oil crisis in the future. This study aims to find the optimal results of the ignition system (type of spark plug, type of coil, ignition timing) and a mixture of gasoline and ethanol (biogasoline) on exhaust emissions of 4 stroke motorcycles using the taguchi method. Based on the results of research that has been done, hydrocarbons (HC) get an optimal average response, namely factors A2 (317.78), B2 (325.89), C1 (299.22) and D2 (316.33). As for the optimal average response to carbon monoxide (CO), namely factors A3 (1.28), B1 (1.26), C3 (1.19) and D2 (1.26).

Co-Authors Alamsah Alfiza Candra Ambiyar, Ambiyar Ari Aryadi Arwizet Arwizet, Arwizet Bahrul Amin Budi Utomo Wisesa Budi Waluyo Deded Purnama Dedi Mulyono Dedi Setiawan Doni Saputra Donny Fernandez Dori Yuvenda Dwi Sudarno Putra Erzeddin Alwi Fauzan Zaharbaini Fazrin Hidayat Giyano Lesmana Hamid Nasrullah Handini Novita Sari Hansi Effendi Hasan Maksum Hendra Dani Saputra I Gusti Bagus Wiksuana Ichsan Nasution Ilham Akbar Maulana Ilham Putra Chaniago Irma Yulia Basri Jerry Chih Tsong Su Jodhi Ananda Prima Krismadinata Krismadinata Lasyatta Syaifullah M Giatman M Nasir M. Abdi Rizal M. Sadly Firmansyah M. Yasep Setiawan M.Riki Rinaldi Martias Martias Masykur Masykur Milana Milana Muhammad Latifur Rochman Muhammad Nasir Muhammad Yanda Muhammad Yasep Setiawan Mukhlidi Muskhir Muslim Muslim Naufal Alifka Nizwardi Jalinus Nizwardi Zalinus Nuzul Hidayat, Nuzul Osvaldo Adven Kurniawan Pinto Pratama Afosma Purwanto, Wawan Putra, Randi Purnama R Candra R. Chandra R. Chandra Refdinal, Refdinal Remon Lapisa Rifdarmon, Rifdarmon Riko Saputra Rino Kurniawan Rizki Alfarizi Rusdiman Simatupang, Wakhinuddin Toto Sugiarto Toto Sugiarto Tung-Kwan Liu Wagino Wagino Wagino Wakhinuddin S Wanda Afnison Whustha Khairul Yanda Septian Putra Yanto, Doni Tri Putra Yuke Permata Lisna Yuvani Oksarianti Zikri Fauzi

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