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All Journal International Journal of Renewable Energy Development Jurnal Pendidikan Teknologi dan Kejuruan IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Indonesian Journal of Science and Technology INVOTEK: Jurnal Inovasi Vokasional dan Teknologi JURNAL PENDIDIKAN TAMBUSAI Jurnal Ilmiah Pendidikan Profesi Guru Adimas : Jurnal Pengabdian Kepada Masyarakat Ensiklopedia of Journal EDUTEC : Journal of Education And Technology Journal of Applied Engineering and Technological Science (JAETS) Didaktik : Jurnal Ilmiah PGSD STKIP Subang PAKAR Pendidikan Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Teknomekanik JPTE: Jurnal Pendidikan Teknik Elektro Vocational : Jurnal Inovasi Pendidikan Kejuruan AEEJ : Journal of Automotive Engineering and Vocational Education JMES: The International Journal of Mechanical Engineering and Sciences Mechanical Engineering for Society and Industry Automotive Experiences Jurnal Vokasi Mekanika Journal of Scientech Research and Development Tsaqofah: Jurnal Penelitian Guru Indonesia MASALIQ: Jurnal Pendidikan dan Sains Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Engineering Researcher and Lecturer Jurnal Pendidikan Agama Islam International Journal of Renewable Energy Development Journal of Innovative and Creativity Inovasi Gagasan Abdimas & Kuliah Kerja Nyata Journal of Civil Engineering and Vocational Education Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Journal of Golden Generation Education Edumaspul: Jurnal Pendidikan
Dori Yuvenda
Departemen Teknik Mesin, Universitas Negeri Padang
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Fuel Control System on CNG Fueled Vehicles using Machine Learning: A Case Study on the Downhill Suroto Munahar; Muji Setiyo; Ray Adhan Brieghtera; Madihah Mohd Saudi; Azuan Ahmad; Dori Yuvenda
Automotive Experiences Vol. 6 No. 1 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.8107

Abstract

Compressed Natural Gas (CNG) is an affordable fuel with a higher octane number. However, older CNG kits without electronic controls have the potential to supply more fuel when driving downhill due to the vacuum in the intake manifold. Therefore, this article presents a development of a CNG control system that accommodates road inclination angles to improve fuel efficiency. Machine learning is involved in this work to process engine speed, throttle valve position, and road slope angle. The control system is designed to ensure reduced fuel consumption when the vehicle is operating downhill. The results showed that the control system increases fuel consumption by 25.7% when driving downhill which an inclination of 5áµ’. The AFR increased from 17.5 to 22 and the CNG flow rate decreased from 17.7 liters/min to 13.8 liters/min which is promising for applying to CNG vehicles.
ANALISIS EFEKTIVITAS SNAPPING ROLL PADA TRAKTOR PEMANEN JAGUNG Ajib Jihadal Mahmud; waskito waskito; Purwantono purwantono; Dori Yuvenda yuvenda; Junil Adri Adri
Journal of Scientech Research and Development Vol 5 No 2 (2023): JSRD, December 2023
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56670/jsrd.v5i2.197

Abstract

Tujuan penelitian ini adalah untuk mengetahui efektivitas pengaruh kecepatan terhadap hasil pemanenan jagung. berdasarkan pengertian penelitian eksperimen,maka pada penelitian ini dilakukan dengan kecepatan putaran snapping roll di rpm 930,8 rpm dan 969,8 rpm.Pemanenan pada kecepatan 930,8 rpm didapatkan waktu pemanenan perbatang jagung nya antara 1,20 detik hingga 1,77 detik dengan total waktu dalam pemanenan 4 batang tersebut adalah 5,69 detik dengan rata-rata pemetikan perbatang adalah 1,42 detik,pada kecepatan ini slip yang ditimbulkan belt dan pully adalah sebanyak 28,7%.Sedangkan pada kecepatan 969,8 rpm didapatkan waktu pemanenan perbatang jagungnya antara 1,16 rpm sampai 1,47 detik dengan total waktu pemanenan 4 batang jagung tersebut adalah 5,25 detik dengan rata-rata pemetikan perbatang adalah 1,31 detik,pada kecepatan ini slip yang ditimbulkan belt dan pully adalah sebanyak 27,4%. Seperti yang dilihat kecepatan snapping rolls terbaik adalah 969,8 Rpm dengan waktu pemanenan 1,16 detik dengan kehilangan putaran sebanyak 139,3 Rpm,Efektifitas pemetikan adalah 1 atau 100% dan efektifitas pengkelobotan 0.Serta slip yang ditimbulkan belt dan pully adalah sebesar 27,4%.
Triglycerides of Crude Palm Oil to Biokerosene: Studies on Electrolysis and Electromagnetic Effect Sri Rizki Putri Primandari; Krismadinata Krismadinata; Dori Yuvenda; Remon Lapisa; Andre Kurniawan; Mulianti Mulianti; Muhammad Djoni Bustan; Sri Haryati; Gusni Sushanti; Tarig Elshaarani; Yus Donald Chaniago
Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 1 (2023): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v5i1.3127

Abstract

Crude Palm Oil (CPO) is a potential feedstock for biokerosene. However, it is problematic when used directly because it is gummy, has a high viscosity and is degradable. Various conversion processes have been conducted that directly convert CPO into biokerosene, but it requires high temperature and pressure. Therefore, as a novelty, this study aims to develop the technology for converting triglycerides into biokerosene under relatively low operating conditions and producing similar petroleum kerosene by electrolysis-assisted and electromagnetic induction. In this study, the conversion technology process was conducted in three steps (i) converting triglycerides to Free Fatty Acids (FFA), (ii) converting FFA to alkanes, and (iii) converting alkanes to biokerosene. Step (ii) is assisted by the electrolysis process, meanwhile, step (iii) is assisted by electromagnetic irradiation. The finding showed that electrolysis obtained 73.47% yield of alkanes and electromagnetic irradiation obtained 78.02% yield of biokerosene.  Biokerosene is almost close to kerosene-based petroleum in terms of colour Saybolt, flash point and Net Heating Value. The findings of this study may provide an alternate technology approach for biokerosene synthesis and solution kerosene scarcity.
Effect of Adding Combustion Air on Emission in a Diesel Dual-Fuel Engine with Crude Palm Oil Biodiesel Compressed Natural Gas Fuels Dori Yuvenda; Bambang Sudarmanta; Arif Wahjudi; Rozy Aini Hirowati
International Journal of Renewable Energy Development Vol 11, No 3 (2022): August 2022
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2022.41275

Abstract

A diesel dual-fuel engine uses two fuels designed to reduce the consumption of fossil fuels. Generally, the specific fuel consumption of diesel dual-fuel engines has increased.  However, in   combination with alternative fuels, namely compressed natural gas injected through air intake, the use of diesel fuel can be reduced. However, using two fuels in a diesel dual-fuel engine increases the equivalent ratio; therefore, the air and fuel mixture becomes richer because the air entering the cylinder during the intake stroke is partially replaced by compressed natural gas. This results in incomplete combustion and increases exhaust emissions, particularly hydrocarbon (HC) and carbon monoxide (CO) emissions. This study aims to improve the combustion process in dual-fuel diesel engines by improving the air-fuel ratio; thus, it can approach the stoichiometric mixture by adding combustion air forcibly to produce complete combustion to reduce CO and HC emissions. An experimental approach using a single-cylinder diesel engine modified into a diesel dual-fuel engine powered by crude palm oil biodiesel and compressed natural gas was adopted. The combustion air was forcibly added to the cylinder using an electric supercharger at different air mass flow rates ranging from 0.007074 to 0.007836 kg/s and different engine loads (1000 to 4000 watts). The results indicated that adding more air to the cylinder could produce complete combustion, reducing the emission levels produced by a diesel dual-fuel engine. An air mass flow rate of 0.007836 kg/s can reduce CO, HC, and particulate matter emissions by averages of 60.55%, 49.63%, and 86.87%, respectively, from the standard diesel dual-fuel engine. Increasing in the amount of oxygen concentration improves the quality of the air-fuel ratio, which results in improved combustion and thereby reducing emissions.
Upskilling Guru Kejuruan melalui Pelatihan Kendali Motor Listrik Berbasis Variable Speed Drive Doni Tri Putra Yanto; Citra Dewi; Dori Yuvenda; Aswardi Aswardi; Rahmat Hidayat; Muslim Muslim; Hermi Zaswita
Jurnal Pendidikan Teknik Elektro Vol 4 No 2 (2023): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jpte.v4i2.341

Abstract

This research discusses efforts to enhance the professional competence of teachers in Vocational High Schools (SMK) specializing in the field of Electricity. It does so through the implementation of a training program based on Variable Speed Drive (VSD) technology for electric motor control. The training program encompasses two distinct learning approaches: theoretical and practical instruction on motor control using VSD technology. This material forms an essential part of the curriculum for installing electric motors in vocational schools. It is crucial for every teacher to comprehend it thoroughly, as vocational school curricula must adapt to the latest developments in science and technology, commonly referred to as the Fourth Industrial Revolution (Industry 4.0). This research focused on 20 electricity teachers at SMK Negeri 1 Bukittinggi as its subjects. The research findings indicate a significant improvement in teachers' professional competence in electric motor installation, particularly in electric motor control using VSD technology, following the implementation of the training program. This improvement is reflected in the posttest results, with 88.7% of participants passing in this particular subject. In conclusion, the Variable Speed Drive Based Electric Motor Control Training for teachers can effectively enhance their professional competence in electric motor installation, aligning with the demands of Industry 4.0.
Hubungan Fasilitas Workshop terhadap Hasil Belajar pada Mata Pelajaran Teknik Frais Siswa Kelas XI Teknik Pemesinan SMK Negeri 1 Tanjung Raya Robert, Julio; Erizon, Nelvi; K, Arwizet; Yuvenda, Dori
Al-DYAS Vol 3 No 3 (2024): OKTOBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/aldyas.v3i3.3752

Abstract

Vocational High School (SMK) which is a school that educates students with professional knowledge and skills as well as talents and interests to prepare skilled workers in accordance with the needs of the business world and industry. Therefore, in the learning process, practicum facilities in the workshop play an important role in determining the success of students to learn effectively so as to achieve the desired learning outcomes. This study aims to determine the relationship between the completeness of Workshop facilities and student learning outcomes in grade XI students majoring in Mechanical Engineering at SMK Negeri 1 Tanjung Raya. This study uses a type of correlational quantitative research with a population of 60 students. The questionnaire with 35 items was used as a measuring tool, the results of the study showed a significant relationship between the learning outcomes of milling machining techniques of grade XI students of SMK Negeri 1 Tanjung Raya and the completeness of workshop facilities where R calculated (0.603) > R table (0.254). The completeness of workshop facilities contributed 36.3% to the success of milling machining engineering learning for grade XI students of SMK Negeri 1 Tanjung Raya and another 63.7% was influenced by other factors.
Simulasi Numerik Variasi Intake terhadap Karekteristik Aliran pada Basin Turbin Vortex Andri, Rezky; Yuvenda, Dori; Purwantono, Purwantono
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2666

Abstract

Water has an important role to be used as a source of electrical energy, water is used to drive turbines that will later produce electrical energy, water turbines have great potential to be developed, especially in vortex turbines. A vortex turbine is a turbine that utilizes whirlpool energy to rotate the turbine blades and then convert it into electrical energy. The purpose of this study was to determine the characteristics of the flow in each inflow variation in the vortex turbine basin. The simulation in the study was carried out using solidworks 2023 software using the CFD (Computational Fluid Dynamics) method. After running simulations, velocity data were obtained on each Outer Wall Tangential inflow design of 0.496 m/s, Involute of 0.517 m/s, Ramped Entry of Scrolled Evolute of 0.0857 m/s, and Involute Ramp of 0.551 m/s. pressure in each Outer Wall Tangential inflow design of 100,793.39 N/, Involute of 99,400.12 N/, Ramped Entry of Scrolled Evolute of 99,270.4 N/, and Involute Ramp of 99,324.31 N/. From the simulation results, it can be seen that the largest velocity is obtained in the Ramped Entry of Scrolled Evolute design, and the largest pressure is obtained in the Outer Wall Tangential design.
Community Behavior towards Plastic Waste: Case Study in Nagari Batu Basa as a Traditional Village Haq, Syaiful; Hidayat, Hendra; Yuvenda, Dori
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.639

Abstract

Sumatra Barat is a halal tourist area but many people throw rubbish carelessly. This phenomenon is a big problem, because environmental issues and waste are world issues. This study reveals the causes of people's behavior of littering using quantitative and qualitative methods. Using 30 observers who monitored community activities for 10 days. The population of this research is the people of Nagari Batu Basa, Pariangan Tanah Datar, Sumatra Barat, consisting of three Jorong (hamlet), Jorong Batu Basa, Jorong Koto Baru, and Jorong Sialahan. The results of the study reveal that people's behavior is to throw rubbish into the river because there are no regulations from the government, there are no rubbish bins, and there is no community initiative to make rubbish bins. People throwing rubbish carelessly has become a habit. People do not care about plastic waste because they do not have knowledge and understanding about plastic waste. Education about waste is also not provided to school students. Apart from that, the government does not pay special attention to plastic waste. The results of this study prove that regulations have an important role in shaping people's behavior in managing waste, especially plastic waste.
Analisis Kandungan Energi Syngas dari Gasifikasi Biomassa Sampah Pasar Menggunakan Metode Uji Boilling Test Azis, Ismail; Fernanda, Yolli; Refdinal, Refdinal; Yuvenda, Dori
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i1.25423

Abstract

Kebutuhan energi di Indonesia terus meningkat seiring dengan pertumbuhan populasi penduduk dan perkembangan industri, sedangkan suplai energi mulai menipis. Akibatnya ketersediaan energi menjadi langka. Biomassa sebagai enegi terbarukan memberikan solusi yang efektif untuk menghasilkan energi. Penelitian ini melakukan pengujian untuk mengetahui peforma dan kinerja gasifikasi dengan empat jenis variasi bahan bakar berbasis biomassa antara lain pellet kayu 100%, campuran pellet sampah pasar dan pellet kayu dengan perbandingan volume 1:1, campuran pellet sampah pasar dan pellet kayu 2:1, serta pellet sampah pasar 100% menggunakan alat downdraf gasifier. Metode penelitian ini merupakan uji eksperimental karena melibatkan pengujian langsung untuk mengukur temperatur gasifikasi, waktu gasifikasi, nyala api efektif,serta suhu air yang dipanaskan menggunakan uji titik didih/ boilling test. Hasilnya menunjukkan bahwa pellet kayu memberikan kinerja terbaik dalam hal stabilitas pembakaran, rendeman syngas, dan menghasilkan nilai kalor yang tinggi dengan waktu nyala api efektif selama 85 menit. Campuran pellet kayu dan pellet sampah pasar 1:1 menghasilkan syngas dengan nyala api efektif selama 15 menit. Sedangkan campuran pellet sampah pasar dan pellet kayu dengan perbandingan volume 2:1 menghasilkan syngas dengan waktu nyala api efektif selama 25 menit. Sementara itu, pellet sampah pasar memberikan peluang untuk memanfaatkan limbah pasar menjadi energi walaupun menghasil syngas dan nilai kalor yang rendah, tercatat waktu gasifikasi selama 25 menit namun, tidak efektif dalam menyalakan api. Selain itu campuran bahan bakar yang lain perlu dikaji untuk menawarkan potensi untuk menghasilkan energi yang relevan demi keberlanjutan lingkungan hidup.
Analisis Penghematan Bahan Bakar dengan Memanfaatkan Gas HHO Abdu Idham; Mulianti Mulianti; Yolli Fernanda; Dori Yuvenda
Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 3 (2025): Juni: Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i3.787

Abstract

The scarcity of fuel that has an impact on the high selling price of fuel, then there needs to be an effort to save fuel in motor vehicles. The solution to this problem is to use renewable fuel, one of the renewable fuels is hydrogen gas. With the addition of renewable energy in the form of HHO gas (Hydrogen Hydrogen Oxygen) from water electrolysis. The purpose of this study was to determine the effect of the application of an electrolyzer on saving fuel consumption in motor vehicles. By using a quantitative method with an experimental research design to test the effect of two variables whether there is a change in the form of fuel savings before and after the installation of the electrolyzer tube. Based on the trials that the researcher has conducted, the results of the study were obtained, namely that the addition of an electrolyzer has an effect on the fuel consumption of 4-stroke motorcycles, both in static and dynamic tests. So with the addition of an electrolyzer, it will be able to save fuel consumption in motorcycles when compared to without using an electrolyzer
Co-Authors - Primawati Abdu Idham Aditya Kolakoti Agia Kulkarni Preti Agitta Rahma Famri Ahmad Arif Ahmad Arif Aji Guncoro Ajib Jihadal Mahmud Al Munawir Alfa Rehan Oktori Rahmadana Alper Calam Alya Khalisa Humaira Amelia Sepyla Desti Anaperta, Yoszi Mingsih Andre Kurniawan Andre Kurniawan Andri Saputra Andri, Rezky Andrizal Andrizal Anna Niska Fauza Aprinaldi Aprinaldi Aqilah Triwulandari Ari Kurniawan Ari Kurniawan Arif Wahjudi Armes, Deya Arwizet Arwizet, Arwizet Arwizet. K Asnil Asnil Aswardi Aswardi Asyifa Dwi Ayshah Aulia Rahma Azis, Ismail Azka Fauzan Azuan Ahmad Bahrul Amin Bambang Sudarmanta Bambang Sudarmanta Bhariq Novrada Bulkia Rahim Citra Dewi Dani Harmanto Dani Harmanto Dani Harmanto Dedi Setiawan Dedi Setiawan Delima Yanti Sari Diko Antama Durain Parmanoan Durain Parmanoan Dwi Ari Septiawan Dwi Sudarno Putra Eko Indrawan Erik Ardinata Erizon, Nelvi Erzeddin Alwi Fadli Gunawan Fancer Rumahorbo Faris Afif Fathir Aspar Fido Delfri Tamasya Fitrah Qalbina Fitri Yanti Gusni Sushanti Handi Fadhilah Hanifa, Nurul Hansi Effendi Haq, Syaiful Haris Yuliardiansyah Harmanto, Dani Hasan Maksum Hendra Dani Saputra Hendra Hidayat Hermi Zaswita Husnil Khatimah Husnul Khotimah I Gusti Bagus Wiksuana Ilham Mahyudi Indradewa, Rhian Irlido Irwansyah Irzal Irzal Irzal, Irzal Isra Fitria Jalil, Muhammad Jamaludin Jamaludin Jamaludin Jamaludin Jose da Silva Junil Adri Kelvin Permana Saputra, Dwi Krismadinata Krismadinata Krismadinata Krismadinata, Krismadinata Lidia Cania Putri M Chalid Kurnia M. Chalid Kurnia M. Ilham Anugrah Illahi M. Nasir M. Yasep Setiawan M. Yasep Setiawan Madihah Mohd Saudi Maidi Saputra Martias Martias Martias Martias Masykur, Masykur Milana Milana Moch. Aziz Kurniawan Muhammad Djoni Bustan Muhammad Hanif Aziz Muhammad Kunta Biddinika Muhammad Raihan Muhammad Rifqi Muhibbudin Muhibbudin Muji Setiyo Muldi Yuhendri Mulianti Mulya Melda Muslim Muslim Mutia Srimaningsi Muzakir Mycel A. Capilayan Nabilla Nathania Suci Nabila Nelvi Erizon Nor Azwadi Che Sidik Nurdin Hendri Nurmansyah, Ridho Nuzul Hidayat, Nuzul Nuzul Ikhsan Oki Muraza Olusegun David Samuel Olusegun David Samuel Pribadyo, Pribadyo Primawati Primawati, Primawati Puja Agustin Purwanto, Wawan Purwantono Purwantono Purwantono Purwantono Purwantono Purwantono Purwantono, Purwantono Putra, Randi Purnama Rafki Irianto Rahadian Zainul Rahmadona, Tiwi Rahmat Desman Koto Rahmat Hidayat Randi Purnama Putra Ray Adhan Brieghtera Refdinal, Refdinal Remon Lapisa Reva Lina Putri Ridho Illahi Riezky Hidayattullah Rifdarmon Rifdarmon Rifelino Rifelino Robert, Julio Ropita Ropita Rozy Aini Hirowati Sabrianto, Jerry Sadri Arjono Septiawan, Dwi Ari Setrihan Putra Sri Haryati Sri Rizki Putri Primandari Suroto Munahar Tarig Elshaarani Tasya Tasyah Tasyah Tiva Julian Sagita Tiwi Rahmadona Toto Sugiarto Tuessi Ari Purnomo Veri Budiawan Arham Vickram Reski Andri Volodymyr Tymofiiv Wagino Wagino Wagino Wagino Wagino Wanda Afnison Wanda Afnison Waskito Waskito Waskito, Waskito Wulansari, Rizky Ema Y, Fadhil Yanto, Doni Tri Putra Yolli Fernanda Yoszi Mingsih Anaperta Yovindra, Difa Yus Donald Chaniago Zahren, Zahren Zainal Abadi