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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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Karakterisasi Briket Arang Bekas Sampah yang Diproduksi dengan Press Hidrolik M. Ilham Anugrah Illahi; Primawati Primawati; Yolli Fernanda; Dori Yuvenda
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i3.4516

Abstract

Kebutuhan energi di Indonesia yang terus meningkat menyebabkan ketergantungan tinggi terhadap bahan bakar fosil. Sebagai solusinya, biomassa khususnya sampah organik bisa dimanfaatkan sebagai bahan bakar alternatif terbarukan karena ketersediaannya melimpah. Energi biomassa yang akan dibuat menjadi briket diolah dan dimampatkan sehingga bentuknya lebih teratur dan mempunyai nilai kalor yang tinggi. Melalui proses penekanan dan pemanasan, sampah organik dapat diolah menjadi briket dengan nilai kalor dan efisiensi pembakaran yang lebih tinggi. Penelitian ini bertujuan untuk mengkaji pengolahan sampah organik menjadi briket menggunakan alat press hidrolik, menganalisis pengaruh variasi suhu terhadap karakteristik briket, serta menentukan kandungan proximate dan nilai kalor (Heating Heat Value). Metode yang digunakan adalah eksperimen menggunakan bahan baku sampah organik degan ukuran partikel lewat dari 18 mesh tetapi tidak lewat dari 30 mesh, variasi suhu 200℃, 250℃, dan 300℃ selama 10 menit. Pengujian yang dilakukan yaitu uji thermogravimetric untuk mengetahui kandungan proximate dari briket. Hasil penelitian menunjukkan suhu karbonisasi berpengaruh signifikan terhadap kualitas briket. Suhu 300℃ menghasilkan briket paling optimal dengan nilai kalor tertinggi (23.914 J/g), kandungan volatile terendah, dan fixed carbon tertinggi. Metode kompresi cetak panas menghasilkan briket padat dan kuat tanpa perekat tambahan. Nilai kalor sangat dipengaruhi oleh kandungan volatile dan fixed carbon yang dapat terlihat seiring dengan menurunnya kadar volatile dan meningkatnya fixed carbon. Pengolahan limbah sampah organik menjadi briket bisa menjadi potensi bahan bakar alternatif dengan besarnya Heating Value yang dihasilkan.
Upaya Peningkatan Pemahaman Masyarakat melalui Edukasi 1000 Hari Pertama Kehidupan dalam pencegahan Stunting di Nagari Latang, Kec. Lubuk Tarok Kab. Sijunjung Tiva Julian Sagita; Asyifa Dwi Ayshah; Amelia Sepyla Desti; Aji Guncoro; Bhariq Novrada; Dori Yuvenda
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 11 No. 04 (2025): Volume 10 No. 04 Desember 2025 In Progress
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v11i04.9580

Abstract

Stunting is a chronic nutritional problem that seriously impacts child growth and development and the quality of future human resources. Stunting prevention needs to be implemented early, particularly during the First 1,000 Days of Life (HPK), the golden period for child growth and development. This study aims to evaluate the effectiveness of education about the First 1,000 Days of Life (HPK) in increasing public understanding and awareness regarding the importance of early stunting prevention. The study was conducted on July 10, 2025, at the Pelita Nagari Latang Early Childhood Education Center (PAUD) in Lubuk Tarok District, Sijunjung Regency, involving pregnant women, breastfeeding mothers, and mothers of toddlers. The research method used a descriptive quantitative approach through education, observation, and questionnaires before and after the activity. The results showed an increase in participants' understanding and awareness of the causes, impacts, and practical steps for stunting prevention, including the importance of exclusive breastfeeding, balanced nutrition, appropriate parenting, and utilization of health services. It can be concluded that education about the First 1,000 Days of Life (HPK) is effective in increasing public understanding and awareness of the importance of early stunting prevention
PERANCANGAN TEKNOLOGI REAKTOR PIROLISIS PENGUBAH SAMPAH PLASTIK MENJADI BAHAN BAKAR CAIR DALAM RANGKA MENGURANGI LIMBAH SAMPAH PERKOTAAN Dori Yuvenda; Husnil Khatimah; Purwantono Purwantono; Durain Parmanoan
ADIMAS Jurnal Pengabdian Kepada Masyarakat Vol 10 No 1 (2026): Maret 2026
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/adi.v10i1.12687

Abstract

The problem of waste in urban areas has become a serious problem today, especially plastic waste that can damage the environment such as damaging terrestrial and marine ecosystems because plastic waste is difficult to decompose and takes a long time to decompose completely. Padang Panjang City is one of the densely populated cities that has the potential to produce large amounts of plastic waste. Through community service activities, the Padang State University service team provides a solution by presenting a tool for processing plastic waste into useful items, namely converting waste into liquid fuel. The UNP service team collaborates with KSM TPS 3R BUKISU Padang Panjang city as a service partner by presenting an innovative pyrolysis reactor tool for converting plastic waste into liquid fuel. The activity starts from a field survey related to problems with partners, designing waste conversion tools, manufacturing tools, handing over tools to partners, demonstrations and socialization of tools, testing tool performance, and monitoring and mentoring on tools that have been handed over to partners. The results of the community service activities have succeeded in creating a pyrolysis reactor unit that converts plastic waste into liquid fuel. Then, the performance of the pyrolysis reactor was tested. Where it can operate well, which is indicated by the liquid fuel produced after a 3-hour test. The resulting fuel has a calorific value close to gasoline, namely 7,965 kcal/kg and a fuel density of 735.9 kg/cm3.
Experimental study on the use of wood pellet briquettes in rocket stoves for household energy needs Rafki Irianto; Yolli Fernanda; Primawati Primawati; Dori Yuvenda
Journal of Engineering Researcher and Lecturer Vol. 5 No. 1 (2026): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v5i1.206

Abstract

This experimental study investigates the effect of air supply configurations on the combustion performance and thermal efficiency of wood pellet briquettes in rocket stoves for household energy use. With increasing global demand for energy and the depletion of fossil fuels, the shift to renewable biomass fuels, such as wood pellets, is essential to reduce carbon emissions and enhance energy efficiency. The study evaluates four airflow configurations: right fan only (F3), lower-left + right fans (F2+F3), two left fans (F1+F2), and all fans (F1+F2+F3). The results show that the F3 configuration achieved the fastest boiling time, highest boiling temperature, and lowest heat-loss temperature, indicating superior thermal performance. In contrast, configurations with higher airflow (F1+F2 and all fans) led to greater heat losses and slower boiling times, suggesting that excessive airflow can negatively affect efficiency. Additionally, the analysis of residual mass revealed that F3 and F2+F3 configurations produced the lowest residuals, indicating more complete combustion. This study provides important insights into optimising airflow configurations to improve the efficiency of biomass stoves. The findings offer practical implications for the design and operation of sustainable cooking technologies, promoting energy efficiency and reducing reliance on fossil fuels in households, particularly in rural areas.
Peran Bakawuah Adat Dalam Mengokohkan Jati Diri Masyarakat Dan Mendorong Pelestarian Budaya Di Nagari Latang Alfa Rehan Oktori Rahmadana; Andri Saputra; Mutia Srimaningsi; Nabilla; Reva Lina Putri; Dori Yuvenda
Jurnal Pendidikan Agama Islam Vol 4 No 2 (2025): Jurnal Pendidikan agama Islam
Publisher : Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study discusses the role of Bakawuah Adat as a post-harvest festival in strengthening identity and preserving local culture in Nagari Latang, Sijunjung, West Sumatra. Using descriptive qualitative methods, data were obtained from interviews with traditional leaders, niniak mamak, alim ulama, cadiak pintar, and observations during the 2025 UNP Community Service Program. The results show that Bakawuah Adat is a form of gratitude to Allah SWT for the harvest, as well as a medium for strengthening traditional values ​​and syarak. This tradition involves all elements of the nagari—niniak mamak, bundo kanduang, youth, and children of the nagari—in every traditional procession. In addition to being a ceremony, Bakawuah also serves as a means of character education and cultural inheritance to the younger generation through bajamba activities, art performances, and ancestral grave pilgrimages. The synergy between traditional leaders, the nagari government, and educational institutions ensures that Bakawuah remains sustainable amidst the current of modernization. This tradition is proof that local wisdom can be a stronghold of community identity in the global era.
Effectiveness of using video tutorial-based learning media in the SMAW welding techniques course Fadli Gunawan; Bulkia Rahim; Fathir Aspar; Dori Yuvenda
Jurnal Pendidikan Teknologi Kejuruan Vol 9 No 1 (2026): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v9i1.48823

Abstract

This study examined the effectiveness of video tutorial–based learning media in improving students’ mastery of horizontal-position Shielded Metal Arc Welding (SMAW) in a technical and vocational education and training (TVET) context. The study responded to the limited evidence on position-specific digital instructional media in welding education, particularly for horizontal-position SMAW practice, which requires precise control of movement, angle, and bead formation. A pre-experimental one-group pretest-posttest design was employed involving 30 Grade XI students in the Mechanical Engineering program at SMKN 1 Sumatera Barat. Data were collected using a validated 30-item performance assessment covering preparation, process, and final weld quality, and were analyzed using descriptive statistics and a paired-samples t-test in IBM SPSS Statistics. The results showed a substantial improvement in students’ performance after the intervention. The mean score increased from 47.57 in the pre-test to 81.70 in the post-test, with a mean gain of 34.13 points. The paired-samples t-test revealed a statistically significant difference, t(29) = 15.25, p < 0.001, and the effect size was very large (d = 2.78). These findings indicate that video tutorial–based media can serve as an effective, low-cost, and scalable instructional tool for procedural welding skills. The study contributes to digital pedagogy in TVET by highlighting the importance of pedagogical fit in technology-supported practical instruction.
Analisis LMTD dan Efektivitas terhadap Kinerja Pendinginan pada Desain Motor BLDC 5 kW Tipe Fluks Aksial Magnet Permanen Menggunakan Simulasi CFD Riezky Hidayattullah; Dori Yuvenda; Yolli Fernanda; Andre Kurniawan
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 4 (2025): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i4.908

Abstract

Axial flux type BLDC motors primary issue is the high operating temperature of the stator and winding components, which can lower system efficiency and hasten the deterioration of the quality of the insulation material. This study is to examine the effects of geometric alterations to the cooling system, such as axial fins on the housing side and curved fins on the casing, on the temperature distribution of a 5-kW axial flux permanent magnet BLDC motor. Convection and conduction heat transport in the cooling system were modeled using ANSYS Fluent software and computational fluid dynamics (CFD) simulation techniques. The Log Mean Temperature Difference (LMTD) and the cooling design's relative efficacy in comparison to the baseline state are the primary metrics that are examined. According to the simulation results, the maximum winding temperature may be lowered to 311 K and the cooling distribution in the rotor, casing, and housing can be improved by adopting curved fin casing and axial fin housing. As the temperature differential between the coolant and the motor surface narrows, the LMTD value drops from the initial condition (5.10 K to 13.94 K), suggesting a more effective heat transfer process. Furthermore, the cooling system's efficiency has more than doubled since its original design. Overall, the study's findings demonstrate that enhancing the cooler's geometric design can increase the BLDC motor's thermal performance and prolong component life.
Design and Crash Test on a Two-Passenger City Car Frame using Finite Element Method Randi Purnama Putra; Dori Yuvenda; Wanda Afnison; Remon Lapisa; Milana Milana; Anna Niska Fauza; Dani Harmanto
Automotive Experiences Vol. 7 No. 2 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.11306

Abstract

The chassis is an important part of a car which must have a strong construction to withstand the weight of the vehicle. The purpose of this research is to create a city car's chassis that can hold two passengers and then crash-test the finished product. In this research, a development method was used using SolidWorks software and the student version of ANSYS R2 2023 as software for creating chassis designs and crash test simulations. The study's findings indicate that the car frame's measurements are 2.46 meters in length, 1.33 meters in height, and 1.39 meters in width. The steel of the ASTM A36 type was utilized as the material in the computational study of the frame. The results show that increasing speed causes an increase in deformation, with the peak deformation at a speed of 100 km/h. The maximum deformation occurs at 0.007 seconds with a value of 203.51 mm at the top pillar of the car. The deformation increases from 97.196 mm at 0.0035 s to 161.22 mm at 0.0056 s. However, deformation occurs mainly in the front zone of the car frame and is not significant in the passenger zone.
Smart and Sustainable Mobility: A Systematic Review of Industry 4.0 Applications in Automotive Sustainability, Alternative Fuels, and EV Charging Systems Wagino Wagino; Mycel A. Capilayan; Muji Setiyo; Volodymyr Tymofiiv; Dwi Sudarno Putra; Dori Yuvenda; Rahmat Desman Koto
Automotive Experiences Vol. 8 No. 3 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.13431

Abstract

This systematic review analyzes the integration of Industry 4.0 technologies in sustainable manufacturing and clean energy technology within the automotive industry, focusing on electric vehicle infrastructure development and renewable energy implementation. Through a comprehensive analysis of 25 selected articles from 200 articles (10 sustainability articles, 12 alternative fuels, and 3 electric vehicle charging stations articles) published between 2018 and 2024, this study employs PRISMA methodology combined with bibliometric content and scientometric analysis. The review reveals significant temporal evolution in research focus, progressing from basic energy efficiency studies (2018-2020) to enhanced Industry 4.0 technology integration (2020-2022), culminating in strong convergence between renewable energy implementation, smart infrastructure development, and circular economy principles (2022-2024). Key findings highlight the critical role of AI, IoT, and blockchain in enabling sustainable manufacturing processes and smart grid integration for EV infrastructure. Integrating hybrid energy storage systems with clean energy technologies is crucial for addressing energy transition challenges and reducing fossil-fuel dependence. The study identifies research gaps in comprehensive methodological approaches integrating technical innovation, sustainable manufacturing, and climate action considerations, particularly in developing regions. Future research opportunities include machine learning applications for dynamic energy system optimization and innovative business models supporting sustainable technology implementation across various socio-economic contexts. This review contributes to understanding technology integration patterns in sustainable transportation systems. It provides strategic recommendations for researchers, industry practitioners, and policymakers in advancing low-carbon mobility solutions and resilient infrastructure development.
Aerodynamic Approach to Two-Passenger City Car Design: A Study of Square Back and Compact Shapes Randi Purnama Putra; Dori Yuvenda; Remon Lapisa; Wanda Afnison; Milana Milana; M. Yasep Setiawan; Ahmad Arif; Dani Harmanto
Automotive Experiences Vol. 8 No. 2 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.13686

Abstract

The development of lightweight electric cars for urban mobility requires efficient aerodynamic design without sacrificing space efficiency. This study presents a novel method by investigating the combination of a two-seater city car's compact dimensions and square back shape, which has not been extensively researched for low- to medium-velocity vehicles. This study's objective is to assess the design's aerodynamic performance using numerical simulations using the Computational Fluid Dynamics (CFD) approach. The vehicle model is designed with a compact body and square back, which is commonly used in small vehicles with high maneuverability requirements. The simulations are conducted at three different air velocity levels: 10, 20, and 30 m/s. The results of the study showed an increase in the value of the drag coefficient (Cd) along with an increase in flow velocity. At a velocity of 10 m/s, the Cd value was recorded at 0.4536. When the velocity increased to 20 m/s, the drag coefficient increased slightly to 0.4563. Further increases in velocity to 30 m/s resulted in a Cd value of 0.4581. This Cd value shows the consistency of aerodynamic performance with increasing velocity, with fluctuations that remain within the efficiency limits of lightweight vehicles. The pressure distribution contour shows high-pressure accumulation at the front and low pressure at the rear of the vehicle, which generates large turbulent wakes in the rear area and contributes to increased drag. These findings indicate that the square rear body design faces significant aerodynamic challenges. Therefore, design strategies such as adding a rear spoiler, using a rear diffuser, and optimizing the rear body angle are suggested as potential solutions to improve flow efficiency.
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