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Interactive Workshop on Metal Casting Aluminum Material for Productive Teachers of SMK Negeri 1 Bukittinggi : Workshop Interaktif Metal Casting Material Alumnium bagi Guru Produktif SMK Negeri 1 Bukittinggi Zainal Abadi; Arafat, Andri; K, Arwizet; Rifelino, Rifelino
CONSEN: Indonesian Journal of Community Services and Engagement Vol. 4 No. 2 (2024): Consen: Indonesian Journal of Community Services and Engagement
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/consen.v4i2.1792

Abstract

This technology is one of the technologies that is widely used in the industrial sector, especially large industries and the automotive industry. Automotive products, machine components and household appliances are widely made using this metal casting method. Metal casting is a technique in applying a product design or making machine products/components, motorbikes and others. Metal Casting Technology is something new for teachers at SMK Negeri 1 Bukittingi. This community service activity was initiated to upgrade teacher skills in understanding metal technology to teachers at Vocational High Schools so that the skills they have are more developed in designing 3-dimensional objects and realizing them in the form of real products. It is hoped that through the training given to teachers at SMK, they can stimulate creative ideas in drawing techniques using CAD software and realizing them in the form of automotive component products. This Metal Casting Workshop is also a Downstream of research that has been carried out with previous funding. Thus, this activity is very relevant to the research results and partner needs, so that the achievements and benefits generated, in addition, the service that will be carried out is also an official request from SMK Negeri 1 Bukittinggi. In general, the activity went smoothly and achieved the goals set in this community service activity
Analisa Alat Pengering Ikan Solar Kolektor Dengan Media Penyimpan Panas Batu Spli Faisal, Afdal; Fernanda, Yolli; K, Arwizet; Primawati, Primawati
Jurnal Vokasi Edukasi (VomEk) Vol 7 No 1 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.807

Abstract

The use of solar energy as an alternative energy source has developed significantly in various applications. The fish dryer in this study utilizes solar energy, assisted by a solar collector, which uses split stones as a heat storage medium. The aim of this research is to enhance the usage of the solar collector fish dryer because it can be used when there is insufficient solar energy. The research method includes the design and creation of a dryer prototype, as well as measuring the temperature of incoming and outgoing air, including the relative humidity inside the drying chamber. The results revealed that utilizing split stones as a heat storage medium can maintain the air temperature in the drying chamber at an optimal level for a longer period, even with varying sunlight intensity. This research was conducted at the Mechanical Engineering Laboratory of Universitas Negeri Padang. The highest temperature achieved in the solar collector fish dryer with a heat storage medium in the oven or drying chamber was 40°C at 13:00 WIB, with a solar intensity of 503 W/m². The drying process of salted fish using split stones as a heat storage medium resulted in a moisture evaporation rate of 49.25% - 64.7% over 8 hours, with a drying rate of 0.068 g/m - 0.079 g/m. The collector's efficiency was 16.6% on the first day and 16.48% on the second day of testing.
Rancang Bangun Dan Efisiensi Alat Simulasi Heat Exchanger Menggunakan Water Cooling System Simon, Ryan Ananda; Karudin, Arwizet; Lapisa, Remon; Kurniawan, Andre
Jurnal Vokasi Edukasi (VomEk) Vol 7 No 1 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.810

Abstract

The water cooling system is a technology commonly used in various industrial and automotive applications to control the temperature of engines and equipment. The heat exchanger, as a key component in this system, plays an important role in efficiently transferring heat from one medium to another. This study aims to design and construct a cross-flow heat exchanger simulation tool that uses a water cooling system, as well as to measure its heat transfer efficiency. The method employed is experimental, involving the measurement of inlet and outlet temperatures of air and water fluids, along with the ambient temperature surrounding the tool. The analysis considers three variations of air velocity: 40 m/s, 50 m/s, and 60 m/s, as well as two different climate conditions, to gain a comprehensive understanding of the tool's performance under varying situations. The research results indicate that this simulation tool is highly effective, as the resulting temperatures align with expectations, thereby enhancing the accuracy of heat transfer analysis. These findings not only benefit mechanical engineering students studying cross-flow heat exchangers as a practical study but also contribute to further developments in the field of heat transfer. This research is expected to serve as a foundation for future studies in the design and optimization of cooling systems and the improvement of efficiency in various industrial applications
Analisis Natural Frequency pada Struktur Engine Mounting dengan Solidworks Research License 2021-2022 Pasaribu, Reynaldy; Sari, Delima Yanti; Waskito, Waskito; K, Arwizet
Jurnal Vokasi Edukasi (VomEk) Vol 7 No 1 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.814

Abstract

Engine Mounting atau dudukan mesin merupakan komponen penting yang terdapat pada mesin pembakaran dalam maupun mesin pembakaran luar yang memiliki fungsi untuk meredam getaran maupun kebisingan, dan menahan beban mesin. Setiap mesin pembakaran dalam tidak terlepas dari yang namanya getaran atau vibrasi, hal ini karena pada umumnya mesin pembakaran dalam menghasilkan gerak rotasi dan mengalami siklus berulang. Jika vibrasi sudah memasuki Natural Frequency dari suatu struktur bagian mesin, maka akan dapat menimbulkan kerusakan terhadap struktur komponen-komponen mesin. Natural frequency suatu objek tergantung pada karakteristik fisiknya seperti massa dan kekakuannya. Dalam penelitian ini bertujuan untuk mengetahui modus getar, dan nilai natural frequency dari engine mounting, hal ini sangat penting dilakukan untuk mencegah terjadinya resonansi pada engine mounting. Dalam penelitian ini model tiga dimensi struktur engine mounting dibuat menggunakan perangkat lunak CAD (Computer Aided Design) yaitu Solidworks Research License 2021-2022, dan prosedur yang digunakan dalam penelitian ini adalah FEA (Finite Element Analysis) pada software Solidworks Research License 2021-2022. Simulasi dilakukan dengan meshing sekitar 65.591 element mesh hasil simulasi solidworks menunjukkan bahwa natural frequency engine mounting berkisar antara 37,40 Hz hingga 177,28 Hz, dengan displacement maximum mencapai 0,562 dalam keterangan AMPRES pada modus 8. Temuan ini menegaskan pentingnya memilih frekuensi kerja mesin agar tidak berdekatan dengan natural frequency engine mounting. Selain itu, respon dinamis displacement maximum manunjukkan, perlunya perancangan yang cermat untuk mengurangi dampak vibrasi pada kinerja mesin. Penelitian lebih lanjut sebaiknya fokus pada pengembangan material dan desain yang dapat meminimalkan displacement maximum serta meningkatkan stabilitas struktur engine mounting
Perancangan Trainer Ac Mobil Untuk Meningkatkan Keterampilan Praktis Siswa Teknik Kendaraan Ringan SMK Dhuafa Padang Leni, Desmarita; Dwiharzandis, Aggrivina; Karudin, Arwizet; Yermadona, Helga; Anjelika, Dea Qori; Anuar, Bakri
Reswara: Jurnal Pengabdian Kepada Masyarakat Vol 6, No 1 (2025)
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/rjpkm.v6i1.5240

Abstract

Metode pembelajaran konvensional sering kali kurang efektif dalam memberikan gambaran nyata tentang cara kerja sistem AC mobil, sehingga siswa mengalami kesulitan dalam memahami komponen dan fungsinya. Untuk mengatasi permasalahan ini, kegiatan pengabdian kepada masyarakat ini memperkenalkan Trainer AC Mobil sebagai alat praktikum interaktif yang dirancang untuk mendukung pembelajaran sistem pendingin kendaraan. Kegiatan ini dilaksanakan di SMK Dhuafa padang, dengan melibatkan 15 siswa dari jurusan Teknik Kendaraan Ringan yang didampingi oleh 4 orang guru, dengan metode pelaksanaan yang mencakup sosialisasi, penyerahan trainer, pengenalan komponen, pelatihan cara pengoperasian, dan perawatan dasar alat. Hasil evaluasi menunjukkan bahwa pada aspek pemahaman komponen trainer, siswa memperoleh skor rata-rata 3.73 dari skala 5, yang menandakan pemahaman yang cukup baik. Pada aspek kemampuan mengoperasikan trainer, siswa memperoleh rata-rata skor 3.53, yang menunjukkan bahwa sebagian besar siswa dapat mengoperasikan trainer dengan mandiri, meskipun beberapa masih memerlukan bimbingan. Sementara itu, pada aspek minat dan partisipasi aktif, siswa menunjukkan antusiasme tinggi dengan skor rata-rata 4.13. Hasil ini mengindikasikan bahwa Trainer AC Mobil tidak hanya berhasil meningkatkan pemahaman dan keterampilan siswa, tetapi juga mampu memicu minat belajar yang lebih besar
Analisa Penggunaan Bahan Bakar Pellet Kayu pada Tungku Biomassa Agustian, Rizki; Fernanda, Yolli; K, Arwizet; Kurniawan, Andre
Jurnal Vokasi Edukasi (VomEk) Vol 7 No 1 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.827

Abstract

Along with population growth and global industrialization, the level of fossil fuel use continues to increase. If fuel consumption continues to increase without proper maintenance, the fuel oil (BBM) crisis will become an unavoidable problem. Utilizing biomass as a source of energy is profitable because theoretically it does not produce the greenhouse gas CO2 which is detrimental to the environment. However, conventional biomass stoves still face problems related to exhaust emissions and combustion efficiency. This study's objective is to make a biomass stove that can reduce exhaust emissions to increase combustion efficiency, thus supporting the use of environmentally friendly energy. The method usually used is by changing the mass of wood pellets during boiling water into the combustion chamber. The weight ranges between 300 grams, 400 grams, 500 grams, 600 grams and 1400 grams, each according to the capacity of the combustion chamber. The five types of tests aim to determine the extent to which differences in wood pellet mass and biomass stove type have on the combustion process, as well as how long the process takes. The findings of the study show that variations in the mass of wood pellets greatly influence the boiling time of water, with a mass of 300 grams the boiling time has not yet reached the boiling point of the water, with a mass of 400 grams it gets 23 minutes, with a mass of 500 grams it gets 25 minutes, with a mass 600 grams can be obtained in 26 minutes
Developing Android App-Based Interactive Learning Media for Mechanical Engineering Basics: Enhancing Vocational School Student Learning Outcomes Arief Juneirul Pratama; Arwizet K; Hasan Maksum; Rizky Ema Wulansari
Jurnal Penelitian Pendidikan IPA Vol 10 No 7 (2024): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i7.7567

Abstract

This study is to provide valid, practical, and effective Android application-based interactive learning media for the Basics of Mechanical Engineering subject in class X Mechanical Engineering at SMK Dhuafa Padang. This medium is intended to boost students' comprehension, motivation, and independence, allowing them to achieve better learning outcomes. The research approach employed is Research and Development (R&D), using a 4D development model (define, design, develop and disseminate). The primary data utilized in this study came from validators, teachers, and students. Data was analyzed descriptively to characterize the validity, practicality and effectiveness of the learning media developed. The validity test findings show that this learning medium, which had a media aspect score of 0,892 and a material aspect score of 0,950, was deemed valid by expert review. This media was also declared practical with a practicality score of 96,94% from teacher responses and 92,25% from student responses. In the effectiveness test, the Gain Score was 0,68, placing it in the medium category. Meanwhile, the t-test shows a Sig value (2-tailed) of 0.002 (2-tailed < 0,05) and a tcount value of 3,372 (tcount ˃ ttable), indicating a significant difference in learning outcomes between students who use this learning media (experimental class) and those who do not use the media (control class). Thus, this Android application-based interactive learning media is declared valid, practical and effective for use in the DDTM learning process.
Analisis Karakteristik Udara Pendingin Terhadap Kinerja Air Conditioner (AC) Berliansyah, Aqilvin; Karudin, Arwizet; Refdinal, Refdinal; Lapisa, Remon
Jurnal Vokasi Edukasi (VomEk) Vol 7 No 1 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.838

Abstract

A stable room temperature is essential for comfort. This study tests the performance of split wall air conditioners with R-22 refrigerant and evaluates how to improve their efficiency through the influence of cooling air temperature. The experiment was carried out by varying the air temperature and cooling load using a heater. Data is taken every 15 minutes for 2 hours using a digital thermometer. The results showed that the maximum coefficient of performance (COP) value reached 8 indoors and 7.2 outdoors. Meanwhile, the maximum energy efficiency ratio (EER) value was recorded at 4.2 indoors and 3.7 outdoors. The stability of COP and EER values indicates that the Split Air Conditioner can operate efficiently despite variations in air temperature and cooling load. Cooler cooling air proved to be crucial in improving system efficiency. Conversely, higher refrigerant loads tend to decrease efficiency. However, this drop can be minimized by keeping the cooling air temperature low. The selection of the appropriate refrigerant, such as R-22, also plays an important role in supporting optimal performance. The combination of cooler cooling air and the right refrigerant allows the split air conditioner to operate with high efficiency. This research provides an important basis for the development of energy-efficient and efficient cooling systems. Optimizing the temperature of the cooling air is one of the main keys in improving the efficiency of the cooling system. With the right approach, split air conditioners can be used more effectively to create thermal comfort while saving energy.
Implementasi Prototipe Trainer Turbin Uap sebagai Media Pembelajaran SMKN 1 Sumatera Barat Karudin, Arwizet; Leni, Desmarita; Usmeldi, Usmeldi; Purnama, Andreadi; Akbar, Yaumil
Jurnal Vokasi Vol 9, No 1 (2025): Maret
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/vokasi.v9i1.6231

Abstract

Metode pembelajaran konvensional sering kali kurang efektif dalam memberikan pemahaman praktis tentang operasi pembangkit listrik tenaga uap (PLTU), sehingga siswa kesulitan memahami prinsip kerja dan komponen utamanya. Untuk mengatasi hal ini, kegiatan Pengabdian Kepada Masyarakat (PKM) memperkenalkan Trainer PLTU Single Propeller, alat interaktif yang dirancang untuk mendukung pembelajaran siswa SMKN 1 Sumatera Barat pada mata pelajaran konversi energi. Kegiatan meliputi sosialisasi, penyerahan trainer, pengenalan komponen, pelatihan operasional, dan panduan perawatan dasar bagi siswa Teknik Mesin yang didampingi guru. Hasil evaluasi menunjukkan rata-rata skor 3,8 dari 5 pada pemahaman komponen trainer, menandakan pemahaman yang baik. Skor rata-rata 3,6 pada keterampilan operasional menunjukkan sebagian besar siswa mampu mengoperasikan trainer secara mandiri, meskipun beberapa membutuhkan bimbingan teknis. Antusiasme dan partisipasi aktif mencatat skor rata-rata 4,2, mencerminkan minat yang tinggi. Trainer PLTU ini berhasil meningkatkan pemahaman, keterampilan, dan minat belajar siswa tentang sistem PLTU
Evaluation of the One Heart Education Program in the Motorcycle Engineering and Business Expertise Competency Nogi Handepi; Wakhinuddin; Hasan Maksum; Arwizet K
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9772

Abstract

Vocational education plays a critical role in preparing students to meet industry demands and enter the workforce effectively. This study aims to evaluate the One Heart Education Program in the Motorcycle Engineering and Business expertise competency at SMKN 1 Luak District, focusing on context, input, process, and product aspects, using the CIPP evaluation model. The study examines whether the program has been managed optimally. Employing a mixed-method approach, the research uses purposive sampling, involving 36 respondents, 26 for quantitative data and 10 as qualitative informants. Data collection methods include questionnaires and interviews. The evaluation results show that the program achieved an overall score of 72.24, categorized as sufficient, indicating suboptimal management. In detail, the context aspect related to program objectives is rated as poor, though the environmental aspect is good. The input, process, and product aspects are also found to be lacking. Key recommendations include optimizing the context aspect by refining program goals, adopting a centralized approach in the input aspect to explore students’ potential, enhancing the learning process in the process aspect to better align with industrial standards, and improving outcomes in the product aspect. These improvements aim to enhance the overall effectiveness and impact of the One Heart Education Program.
Co-Authors - Primawati A, Yufrizal Abbas, Muhammad Rabiu Abd. Aziz Abd. Aziz Abdul Aziz Ade Habibbullah Adriansyah Adriansyah Aggrivina Dwiharzandis Agia Kulkarni Preti Agustian, Rizki Ahmad Arif Ahmad Arif Ahmad Natafian Fauzi Ahmad, Salamuddin Akbar, Yaumil Akhmad Rais Aldi Alfarizi Aldi Alfarizi Alvien Khardin Ambiyar, Ambiyar Amir, Irfan Ananda, Opi Andika Putra Andika Saputra Andre Kurniawan Andre Kurniawan Andre Kurniawan Anjelika, Dea Qori Anuar, Bakri Anugrah, Pinto Arafat, Andri Arafat, Andril Arief Juneirul Pratama Ariyanto, Dedi Aryasandy, Nensy Asep Bunyamin Azel Rozandi Azmil Azman Bayu Rianto Berliansyah, Aqilvin Berry Delfi Andra Budi Syahri Bulkia Rahim Bunyamin, Asep Butar, David Beckham Butar Chrismondari, Chrismondari Daniel Fifaldi Nardo Darmawi . Delima Yanti Sari Denisa Putri Jadenis Desmarita Leni Deviya Aprilman Dodi Ariska Doni Saputra Dori Yuvenda Efendi, Defindo Efriwan Efriwan Eko Indrawan Endri Rizki Anugrah Erdi, Putri Nurhalimah Erizon, Nelvi Erlanda, Rendi Esa Hafizul A Fachrur Rozi Fachry Novrianda Faisal, Afdal Fajri Ramadhan Fakhrur Rozi, Fakhrur Febri Prasetya Fiqi Gusti Irawan Firman Omni Saputra Fitrah Qalbina Giatman, M Gito Okto Rito FM Gusta Nanda Habibbullah, Ade Hafiz Alfadri Ramadhan Haris Haris Haris Haris, Haris Hasan Maksum Hasanuddin Hasanuddin Hasanuddin WS Helga Yermadona Hendra Hendra Hendra, Carlen Muhammad Hendri Nurdin Idra Putra Irfan Amir Irfan, Abdillah Irma Yulia Basri Irzal Irzal Jalil, Muhammad Jasman Jasman Jasman Jasman Jasman Junil Adri Khairuni Delfi Anisa Krismadinata Krismadinata Krismadinata Krismadinata kusuma, Yuda Perdana M. Agus Trian Putra M.Y. Setiawan Martias Martias Miftahul Arrafi Monica, Okzalia Muchlisinalahuddi Muchlisinalahuddi Muhammad Akhbar Muhammad Anwar Muhammad Aulia Ifsan Muhammad Lathif Mahendra Muharir Muharir Muharni, Riza Mulianti Mulyanti Muslim Muslim Nabawi, Rahmat Azis Nadia Utari Nasrullah Nasrullah Nasution, Ridhollah Nelvi Erizon Nidya Meliza Putri Nizwardi Jalinus Nofri Helmi Nofri Helmi Helmi Nogi Handepi Nugraha, Ikhsan Dani Nurdin Hendri Nurfajri Nurfajri Nurfajri Nurfajri, Nurfajri Nuzul Hidayat, Nuzul Oky Erlangga Oky Erlangga Okzama, Rebi OSKAH DAKHI Ovi Marendah Pasaribu, Reynaldy Peng, Lim Hooi Prasetya, Kresna Adi Primawati Primawati Primawati Primawati, Primawati Purnama, Andreadi Purwantono Purwantono Purwantono purwantono purwantono Putra, Idra Putra, Rido Putri Nurhalimah Erdi Rahmad Robby Alzam Rahmat Afdhol Rahmat Syukri Ramfit Novari Randhy Alfarishi Rebi Okzama Refdinal Refdinal Refdinal Refdinal, Refdinal Refdinal, Refdinal Remon Lapisa Remon Lapisa Remon Lapisa Remon Lapisa Rifelino Rifelino Rio Ramadhan Rivanol Chadry Rizka Rizka Rizka Rizka, Rizka Rizki Ramadhan Nasution, Muhammad Rizky Ema Wulansari Rizky Ema Wulansari Robby, Muhammad Robert, Julio Ruzita Sumiati Said Fuad Amry Salamuddin Ahmad Setiawan, Sepdirama Shabir Ahmed Sharma, Jai Kumar Sihombing, Ahmad Rifai Simon, Ryan Ananda Soretire Lanrewaju Kamorudeen Sri Rizki Putri Primandari Steven Thomas Anggriyanto Sukardi Sukardi Supardi Supardi Suparno Suparno Suparno Suparno Suparno Syah, Muhammad Rayhan Syukri, Rahmat Toto Sugiarto Totoh Andayono Usin Usin Usmeldi Usmeldi Veri Budiawan Arham Vicky Prasetyo Wahyu Ananda Putra Wahyudi Fachrul Syafra Wakhinuddin WAKHINUDDIN SIMATUPANG Waskito Waskito Waskito Waskito, Waskito Winaldi Alfonis Yandra, Muvi Yanriko, Armizal Yanto, Doni Tri Putra Yazmendra Rosa Yoga Novrialdy Yolli Fernanda Yolli Fernanda Yufrizal A Yufrizal Yufrizal Yufrizal Yufrizal Yulira Emputri Yurika Putri Zainal Abadi Zainal Abdi