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All Journal Science and Technology Indonesia JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN Communications in Science and Technology Jurnal Konversi Energi dan Manufaktur Jurnal Pendidikan Teknik dan Vokasional
Sukarno, Ragil
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Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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DEVELOPMENT OF EDUTAINMENT-BASED MECHANICAL ENGINEERING DRAWING LEARNING MEDIA USING THE CANVA APPLICATION Pamungkas, Tabah Putra; Prihantoro, Constantinus Rudy; Sukarno, Ragil
Jurnal Dinamika Vokasional Teknik Mesin Vol. 10 No. 1 (2025)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v10i1.83478

Abstract

Education and learning are developing in accordance with the development of science and technology. The education quality could be improved by changing a conventional learning media into learning media that can increase student motivation so that students can more easily understand the learning material. This research aims to develop and design edutainment-based learning media using the Canva application in the subject of Mechanical Engineering Drawing. The research was carried out using the Research and Development (R&D) method with a 4D development model, which must go through a validation process from experts as a successful process of the feasibility test of the product developed before it is later used by students. This research offers a novelty by integrating specific edutainment elements in the Canva application for Machine Engineering Drawing learning, which has not been explored much in this context before. This innovation creates a more interactive and engaging learning experience, expected to significantly improve material comprehension and retention compared to conventional methods. The results of the feasibility test of edutainment-based mechanical engineering drawing learning media using the Canva application obtained a percentage of 96% from material expert validators, 88% from media expert validators, and 86% from the results of the learning media feasibility test conducted by students. From the results of the test, it can be concluded that Edutainment-Based Mechanical Engineering Drawing Learning Media Using the Canva Application "Very Feasible" is used in the learning process. 
Experimental investigation of a thermoelectric generator assisted with heat pipe sinks for pickup car exhaust waste heat recovery Sukarno, Ragil; Indasyach Moreno, Zavi; Rio Budi Syaka, Darwin; Gunawan, Yohanes; Gama Yoga, Nugroho; Fariz Adzani, Rivaldo; Putra Mustafit, Alvian; Kurniawati, Desy
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1661

Abstract

In internal combustion engine vehicles (ICEV), about 40% of the heat is discharged into the environment as waste heat. This study proposed to develop an energy recovery device to utilize exhaust heat as electrical energy using a thermoelectric generator (TEG) assisted with a heat pipe sink. Six TEG units were installed on the stainless-steel heat block in an exhaust pipe where each TEG unit varied with one-stage TEG and two-stage TEG modules. The results showed that the maximum power generated and TEG efficiency of 1.4 W and 1.14% were obtained under 180oC of exhaust pipe temperature, with a two-stage TEG with a heat pipe sink under forced convection. The use of a heat pipe sink and under-forced convection improves the TEG system's performance by increasing the temperature difference between both sides of the TEG module, which impacts the electric power generated. This research provides some practical guidance for increasing the power and efficiency of TEGs by improving heat transfer performance through heat pipes.
SISTEM RESIRKULASI AIR OTOMATIS UNTUK PENGHEMATAN AIR BERSIH DAN ENERGI PADA BUDIDAYA IKAN NILA: The Automatic Water Recirculation System for Clean Water and Energy Saving in Tilapia Farming Sukarno, Ragil; Ramadhan , Muhammad Fajar; Andriansyah, Farezi; Adigutama, Yudha; Syamsuir; Sampurno , Hari
Jurnal Konversi Energi dan Manufaktur Vol. 9 No. 1 (2024)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.9.1.5

Abstract

The acidity and turbidity of water are essential factors in tilapia farming, so it is necessary to control the acidity (pH) and turbidity (NTU) of water. This research aims to develop an automatic water recirculation system to save the use of clean water and energy consumption in tilapia fish farming using a microcontroller based on pH and turbidity (NTU) values. The research method used is experimental, starting with design and manfacture an Experimental apparatus in the form of a fish pond from a box-shaped tarpaulin, a filter system, a water circulation system consisting of pipes and a pump that has a suction power of 25 lpm, an Arduino-based microcontroller water quality controller. Tests were carried out by comparing water's pH and NTU values before and after filtering. The results showed that using a water recirculation system in a fish pond equipped with a filter system and an Arduino-based microcontroller system can significantly maintain the pH value and reduce the turbidity level (NTU). Using a recirculation system provides energy savings for pump consumption of 51.4% at a water flow rate of 15 lpm and 32.3% at a water flow rate of 25 lpm compared to conventional systems. Overall, the recirculation system provides the benefits of energy savings in pump operation, savings in water usage, and controlled water quality.
PENGEMBANGAN PERANGKAT PEMBELAJARAN PADA EDUKASI BAHAYA KEBAKARAN DAN UPAYA PENYELAMATAN DIRI DENGAN METODE PROBLEM BASED LEARNING BERBASIS HIGHER ORDER THINKING SKILLS PADA SISWA KELAS V Aditya Hermawan; Avanti, Ratu Amalia; Sukarno, Ragil
Jurnal Pendidikan Teknik dan Vokasional Vol. 4 No. 2 (2021): Jurnal Pendidikan Teknik dan Vokasional
Publisher : LPPM, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.105 KB) | DOI: 10.21009/JPTV.4.2.105

Abstract

This study aims to develop a web-based learning model on the fuel system material and determine the feasibility of the learning model product based on the assessment of 2 material experts, 2 media experts and 30 students at SMK Negeri 54 Jakarta. This research method is Research and Development (R&D) with the ADDIE development model consisting of five stages, namely Analysis, Design, Development, Implementation, and Evaluation. The results in this study are a web-based learning model that can be accessed via computers and smartphones with the address https://teknikengine.000webhostapp.com. In this study, it was shown that the level of feasibility of the learning model based on the assessment of material experts from all aspects obtained a percentage of 88.33% which was included in the "Very Eligible" category. Media experts in all aspects obtained a percentage of 85.38% which was included in the "Very Eligible" category and the satisfaction results by students in all aspects obtained a percentage of 89.23% which was included in the "Very Satisfied" category. Thus, the web-based learning model on this fuel system material is "Very Appropriate" to be used as a learning model Keywords: Learning Model Development, Feasibility
Structural, Electrochemical, Bacterial Activity, Hardness, and Thermal Properties of Mg Alloy with Various Zn Contents Premono, Agung; Basori, Imam; Sukarno, Ragil; Susetyo, Ferry Budhi; Alhamidi, A. Ali; Anugrah, Hanif Setia; Muqafillah, Mochammad Fajr Dzakwan; Yudanto, Sigit Dwi; Hasbi, Muhammad Yunan; Situmorang, Evi Ulina Margareta; Edbert, Daniel; Mutiara, Etty; Kriswarini, Rosika; Jamaludin, Agus; Ajiriyanto, Maman Kartaman; Rosyidan, Cahaya
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.96-108

Abstract

Magnesium (Mg) alloy is used for various medical purposes, such as bone implants. In the present study, MgAlSixZn alloys were created utilizing the gravity casting by adding various Zinc (Zn) (x is 0, 0.5, 1.2, and 1.7 wt.%) and then homogenized at 400 ◦C for around two hours. MgAlSixZn as homogenized samples were investigated for microstructure, phase structure, electrochemical behavior, surface morphology, bacterial activity, hardness, and thermal behavior using an optical microscope, XRD, Potentiostat, SEM-EDS, digital camera, Vickers hardness test, and Thermogravimetric apparatus, respectively. Several findings include that increasing Zn content implies a grain growth inhibition mechanism facilitated by Zn segregation at grain boundaries, increased corrosion rates, a rise in the hardness, and increased weight loss. It should be noted that the increase in the corrosion rate and weight loss occurs linearly for Zn addition in the Mg alloy until 1.2 wt.%. An increase in Zn concentration causes the peak shift in MgAlSi-based alloy samples, but no crystallographic orientation is apparent. At the end, the highest corrosion rate and inhibition area are observed in MgAlSi1.2Zn, which indicates that it is suitable for biodegradable orthopedic wire.
Co-Authors Adigutama, Yudha ADITYA HERMAWAN Agus Jamaludin Alhamidi, A. Ali Andriansyah, Farezi Anugrah, Hanif Setia Avanti, Ratu Amalia Cahaya Rosyidan Daniel Edbert, Daniel Desy Kurniawati Etty Mutiara Evi Ulina Margaretha Situmorang Fariz Adzani, Rivaldo Ferry Budhi Susetyo Gama Yoga, Nugroho Hasbi, Muhammad Yunan Imam Basori Indasyach Moreno, Zavi Maman Kartaman Ajiriyanto Muqafillah, Mochammad Fajr Dzakwan Pamungkas, Tabah Putra Premono, Agung Prihantoro, Constantinus Rudy Putra Mustafit, Alvian Ramadhan , Muhammad Fajar Rio Budi Syaka, Darwin Rosika Kriswarini Sampurno , Hari Syamsuir Yohanes Gunawan, Yohanes Yudanto, Sigit Dwi