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All Journal TEKNIK Jurnal Pendidikan dan Pengajaran Jurnal Pendidikan Teknologi dan Kejuruan JTEV (Jurnal Teknik Elektro dan Vokasional Sainstek Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) JOIV : International Journal on Informatics Visualization INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL PENDIDIKAN TAMBUSAI Jurnal Ilmiah Pendidikan dan Pembelajaran Journal of Educational Research and Evaluation Journal on Education EDUPEDIA JTP - Jurnal Teknologi Pendidikan Jurnal EDUCATIO: Jurnal Pendidikan Indonesia JRTI (Jurnal Riset Tindakan Indonesia) Jurnal Informasi dan Teknologi Journal of Applied Engineering and Technological Science (JAETS) IJECA (International Journal of Education and Curriculum Application) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Teknomekanik ARSY : Jurnal Aplikasi Riset kepada Masyarakat JPTE: Jurnal Pendidikan Teknik Elektro MSI Transaction on Education Jurnal Sosial dan Teknologi AEEJ : Journal of Automotive Engineering and Vocational Education Automotive Experiences Jurnal Vokasi Mekanika MASALIQ: Jurnal Pendidikan dan Sains Innovative: Journal Of Social Science Research Journal of Engineering Researcher and Lecturer Ranah Research : Journal of Multidisciplinary Research and Development JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Asian Journal of Science, Technology, Engineering, and Art IJIMCE : International Journal of Innovation in Mechanical Construction and Energy The Indonesian Journal of Computer Science IJIS Edu : Indonesian Journal of Integrated Science Education
Remon Lapisa
Universitas Negeri Padang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Rancang Bangun Dan Efisiensi Alat Simulasi Heat Exchanger Menggunakan Water Cooling System Simon, Ryan Ananda; Karudin, Arwizet; Lapisa, Remon; Kurniawan, Andre
Jurnal Vokasi Mekanika (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
Optimalisasi Keterampilan Praktis melalui Pendampingan dan Pelatihan Peralatan Teknologi Kejuruan: Kasus Studi MGMP Teknik Instalasi Tenaga Listrik dan MGMP Teknik Audio Video di Pesisir Selatan Krismadinata, Krismadinata; Lapisa, Remon; Yelfianhar, Ichwan; Asnil, Asnil; Mulya, Hasan Sayuti; Armaliany, Telvi
Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Vol 24, No 2 (2024): Suluah Bendang: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/sb.05840

Abstract

Seiring dengan meningkatnya kebutuhan akan energi terbarukan, pemahaman tentang teknologi PLTS menjadi sangat penting. Namun, banyak guru yang masih memiliki keterbatasan dalam hal kompetensi dan fasilitas pendukung. Kegiatan ini dilaksanakan bertujuan untuk meningkatkan pemahaman dan keterampilan guru dalam pengajaran energi baru terbarukan terkhusus Pembangkit Listrik Tenaga Surya melalui program pendampingan dan pelatihan di MGMP Teknik Instalasi Tenaga Listrik dan MGMP Teknik Audio Video di Pesisir Selatan. Kegiatan yang dilakukan meliputi pemaparan teori mengenai komponen Off Grid Solar Training Kit, diikuti dengan sesi praktik yang berfokus pada pengoperasian dan pemanfaatan alat. Trainer ini dapat dimanfaatkan sebagai media pembelajaran yang efektif bagi guru dan siswa dalam mendukung proses belajar mengajar dengan cara yang interaktif dan praktis
Analisis Karakteristik Udara Pendingin Terhadap Kinerja Air Conditioner (AC) Berliansyah, Aqilvin; Karudin, Arwizet; Refdinal, Refdinal; Lapisa, Remon
Jurnal Vokasi Mekanika (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.
Development of Android-Based Learning Media in Information Communication Technology (ICT) at Senior High School Indah, Indah Rahmatika Sari; Effendi, Hansi; Lapisa, Remon; Wulansari, Rizky Ema
The Indonesian Journal of Computer Science Vol. 12 No. 4 (2023): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i4.3323

Abstract

Android-based learning media is one of the media that is easy to use by teachers and students in achieving learning objectives. This study aims to produce valid, practical, and effective learning media used for learning. The method used is Research and Development (R&D) with a 4-D development model (four D models). This study used an instrument in the form of a questionnaire. The questionnaires were divided into validation questionnaires, practicality, and effectiveness questionnaires. For data analysis, researchers used Aiken's formula and Gain Score. The validation sheet is filled out by 4 validators consisting of 2 material validators and 2 media validator. The practicality sheet is filled out by 30 students and 2 teacher. For effectiveness data used questions filled out by students. The questionnaire data obtained a validity level of 0.95 which indicates that the developed media is valid. For practicality, the result is 90% with the very practical category. The effectiveness of the developed media is seen from the value of students. After using the media, 100% of students had scores above the KKM, while from the gain score test, they got a value of 0.75 which means that the learning media developed can be said to be effective. Based on these data it can be concluded that android-based learning media in Information and Communication Technology (ICT) subjects is valid, practical, and effective for use as learning media.
Evaluation of Countinance Stake on the Implementation of Project Based Learning in the Automotive Engineering Department fajar, Fajar Riyaddi; Waskita; Ambiyar; Lapisa, Remon
The Indonesian Journal of Computer Science Vol. 12 No. 4 (2023): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i4.3354

Abstract

Evaluation as an action to find out or an attempt to see the extent to which the goals set have been achieved. In other words, the goal is a tool to determine the success of the learning process that occurs between educators and students. The purpose of this study was to look at the results of the evaluation of project-based learning in productive subjects for students majoring in automotive at the 1 Pantai Cermin Vocational High School. This type of research is evaluative research using a qualitative approach. The evaluation method used is the STAKE method, which evaluates plans, processes and results. The findings of this study, namely, that project-based learning has been implemented for students in the automotive major at Pantai Cermin Vocational High School 1 found that the implementation of project-based learning still has deficiencies in terms of preparation and results. Viewed from the preparation aspect, it was found that the project delivery from the teacher was unclear and not specific, while from the results aspect, the projects undertaken were still limited to video tutorials that had not been published. The conclusion from this research is that project-based learning still needs careful planning to match the expected results or objectives.
Pengembangan SMK Berbasis Potensi Daerah dan Kebutuhan Tenaga Kerja: Studi Kualitatif di Indonesia Enjang Suhaedin; Wike Oriza; Ambiyar Ambiyar; Remon Lapisa
Journal on Education Vol 7 No 1 (2024): Journal on Education: Volume 7 Nomor 1 Tahun 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v7i1.7091

Abstract

This research aims to analyze the development of Vocational High Schools (SMK) based on regional potential and workforce needs in Indonesia. This study explores the relevance of the vocational school curriculum to regional potential and the needs of the local job market, identifies the challenges faced in developing regional potential-based education programs, and analyzes the influence of vocational school collaboration, industry and government on the quality of graduates and employment. The research method used is qualitative, with data collection techniques through in-depth interviews, observation and document analysis. The research results show that the relevance of the vocational school curriculum to regional potential and local workforce needs still varies in various regions, with some vocational schools in urban areas succeeding in adapting their curriculum, while vocational schools in rural areas still face obstacles. The main challenges identified include limited facilities and infrastructure, lack of competent teaching staff, limited collaboration with industry, and suboptimal government support. This research also found that good cooperation between vocational schools, industry and government has a positive impact on the quality of graduates and employment. Based on these findings, this research recommends adjusting the curriculum, improving facilities and infrastructure, training and professional development for teachers, increasing collaboration with industry, and more optimal government support. By implementing these recommendations, it is hoped that vocational schools in Indonesia can develop into quality vocational education institutions capable of producing graduates who are ready to work and are competitive in the global market.
Evaluasi Pelaksanaan Program Praktek Kerja Industri pada Kompetensi Keahlian Nautika Kapal Niaga Evenda, Devi; Lapisa, Remon
Jurnal Ilmiah Pendidikan dan Pembelajaran Vol. 4 No. 1 (2020): Maret 2020
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jipp.v4i1.24172

Abstract

Problems in the implementation of apprenticeship students in the Nautika Kapal Niaga expertise in SMKN 2 Painan students include the difficulty of adjusting the apprenticeship schedule to the shipping industry, the lack of competence with student work opportunities has an impact on the low ability of students after implementing internship. Research methods are quantitative research methods and qualitative research methods whose use is adjusted to the desired data needs to answer research questions. Research respondents are each party involved in carrying out internship and 40 students. The instrument for qualitative research uses interview guidelines and specific observation guidelines for prakerin preparation data, while quantitative research data uses questionnaire instruments, learning outcomes tests and rubric of practical learning outcomes assessment. The results showed that 1) Formative evaluation related to the assessment of the implementation process of the apprenticeship in preparation of the apprenticeship had good results, the assessment of the implementation of teacher assignments (77%) was in the medium category and the industry supervisor (63%) was in the poor category, students' perceptions on the application of the teacher's tasks 69 % and industry advisers 66%, meaning that improvements still need to be done because they have moderate (sufficient) value. The results of the study on the assessment of the scope of work carried out by apprenticeship activities carried out by students 82% with good categories at stage I, 83% with good categories at stage II, 80% with good categories at stage III, 67% categorized as being at stage IV and 62% categorized poor in stage V, the overall average score is at an average of 74% in the medium category, 2) summative evaluation related to the assessment of the results of the perceived apprenticeship in the realm of attitude the overall average score in the learning outcomes of the realm of attitude is 72% in the medium category, the realm psychomotor practice 1 with an average of 80 and practice II with an average of 83, the value of good category and students declared competent in practice, in the cognitive realm obtained an average of 71.20 this score is still below the KKM in the cognitive domain that is 75, cognitive learning outcomes indicate that students' cognitive abilities still need to be improved.Keywords: Internship, Formative Evaluation, Summativ Evaluation
Curriculum Evaluation of Light Vehicle Engineering Department with Discrepancy Model as Per Industry Needs Aprianto, Anggi; Rizal, Fahmi; Lapisa, Remon; ., Ambiyar; Wakhid, Wakhinuddin; ., Sukardi; Riyanda, Afif Rahman
Journal of Education Reseach and Evaluation Vol 4 No 4 (2020): November
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.443 KB) | DOI: 10.23887/jere.v4i4.28978

Abstract

The implementation of the curriculum as per industrial needs should be improved in terms of qualifications of teachers, tools, practicum materials, and the use of learning models as per industry needs. This study aims to evaluate the used curriculum of light vehicle engineering department as per industry needs. This study uses discrepancy evaluation model (design, installation, process, product and comparison) that describes the implementation of curriculum according to the industry needs from various aspects, namely: design, installation, process, product and comparison. The study results concluded that achievement level of curriculum implementation as needed in the design component obtained an average score of 4.28 (83.17%) classed in a good category; installation components get an average score of 3,502 (78.47%) classified in sufficient categories; process components get an average score of 4.05 (81.75%) classed in a good category; and product components that scored an average of 4.02 (81.26%) classified in a good category. As well as in the comparison component that obtained an average score of 3,324 (74.27%) classified in sufficient categories. The implementation of vocational school curriculum majoring in light vehicle engineering as a whole is categorized as sufficient. Therefore, it needs a follow-up from the relevant parties for a better implementation.; one of which is by revising the curriculum to fit the needs of the industry.
Numerical Analysis of Air-Water Heat Exchanger as Passive Cooling System in Air Ventilation Saputra, Firman Omni; Lapisa, Remon; Refdinal, Refdinal; Syahri, Budi
Asian Journal of Science, Technology, Engineering, and Art Vol 1 No 2 (2023): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v1i2.2019

Abstract

Indonesia has a humid tropical climate and many major cities are located along the coast, causing a large energy demand for thermal comfort. It takes a lot of energy to get thermal comfort. So one of the effective strategies for energy efficiency of HVAC (Heating, Ventilation, and Air Conditioning) systems is passive cooling techniques. Therefore, savings are made by using heat transfer devices as passive cooling in air vents. This research was conducted to see the comparison between experimental data and Computational Fluid Dynamic (CFD) simulations. The implementation method in this research was carried out on Solidoworks 2020 software. Based on experimental data, the inlet temperature is 32.35˚C, the outlet temperature is 28.4˚C and the water temperature is 27.58˚C and the mass flow rate is 0.0936 kg/s, the effectiveness is 0.228, then a variation with a mass flow rate of 0.1872 kg/s is obtained with an effectiveness of 0.122 and a mass flow rate variation of 0.2808 kg/s is obtained with an effectiveness of 0.083.
Aerodynamic Approach to Two-Passenger City Car Design: A Study of Square Back and Compact Shapes Putra, Randi Purnama; Yuvenda, Dori; Lapisa, Remon; Afnison, Wanda; Milana, Milana; Setiawan, M. Yasep; Arif, Ahmad; Harmanto, Dani
Automotive Experiences Vol 8 No 2 (2025)
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.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 A G Halim A, Esa Hafizul Abbas, Muhammad Rabiu Abdul Aziz Abdullah, Adlan Azmi Abdullah, MT, Dr. Rijal Ade Afriadi AR Afif Rahman Riyanda Agus Sukandi Ahmad Arif Ahmad Arif Aldio, Muhammad Fikhri Alex Firstson Kurniawan Alfarizi, Aldi Ambiyar, Ambiyar Ananda, Opi Andre Kurniawan Andre Kurniawan Andre Kurniawan Andri Septiandes Anugrah, Pinto Aprianto, Anggi Aprizal Saputra Arafat, Andril Arfianti, Fina Armaliany, Telvi Arnas Arnas, Arnas Arwizet Arwizet, Arwizet Arwizet K, Arwizet Asnil Asnil Asnil Asnil Asnil Asnil Azhari, Nevil Bahrul Amin Bambang Sudarmanta Beni Giovani Berliansyah, Aqilvin Budi Syahri Bulkia Rahim Candra Surya Candra, Oriza Delima Yanti Sari Delsina Faiza Denda Afri Juliadi Desmarita Leni Devega, Army Trilidia Dimas Riadi Dirgantara, Septa Zela Donny Fernandez Dori Yuvenda Dwi Sudarno Putra Dwiprima Elvanny Myori, Dwiprima Elvanny Eko Indrawan Endri Rizki Anugrah Endrika Wahidri Enjang Suhaedin Erzeddin Alwi Evenda, Devi Fadhilah Fadhilah Fadhilla Azherda Fahmi Rizal Fahrendra, Aqsal Fajar Riyaddi fajar fajar, Fajar Riyaddi Faris Afif Fauza, Anna Niska Fauzun, Hudri Febri Prasetya Febri Silvia Firdaus Firdaus Firmansyah, Gusri Fivia Eliza Ganefri . Gusni Sushanti H H, Tiara Klaudia Habibie Habibie Halmadid, Muhammad Habib Hamizum, Bestra Hansi Effendi Hariyadi, Hariyadi Harmanto, Dani Hasan Maksum Hasanuddin WS Hendra Dani Saputra Hendri Nurdin Herasmus, Hilda Huda, Yasdinul Ilham Zikri Indah Rahmatika Sari Indah Indah, Indah Rahmatika Sari Iqrha, Muhammad Irma Husnaini Irma Yulia Basri Irzal Irzal Irzal, Irzal Jamaludin Jamaludin Jasman Jasman Juli Sardi Junil Adri Krismadinata Krismadinata Krismadinata Krismadinata Krismadinata Krismadinata, Krismadinata Kurnia Wahyu Prima Kurniawan, Alex Firstson kusuma, Yuda Perdana Larisang Lasyatta Syaifullah M. Afdal M. Natsir M. Yasep Setiawan M.Y. Setiawan Martias Martias Milana Milana Muhamad Fadel Pratama Muhammad Azim Muhammad Djoni Bustan Muhammad Elfin Muhammad Lathif Mahendra Muhammad Rizki Anshari Muhammad, Maghfiridhani Muji Setiyo Mulianti Mulya, Hasan Sayuti Muslim Muslim Nanang Qosim Nasruddin Nasruddin Nevil Azhari Niko Adima Brawira Nofri Helmi, Nofri Nurdin Hendri Nurmansyah, Ridho Nuzul Hidayat, Nuzul Oki Muraza Prayoga, Ongki Primandari, Sri Riski Putri Primawati Primawati Purwanto, Wawan purwantono purwantono Purwantono Purwantono Purwantono, Purwantono Putra, Ilma Putra, Meiyaldi Eka Putra, Randi Purnama Putra, Rido Putra, Rusnardi Rahmat Putri, Nengka Putri, Prima Yane Rahadian Zainul Rahman, Haolia Rahmat Afdhol Rahmiati Rama, Alzet Refdinal Refdinal Refdinal, Refdinal Refdinal, Refdinal Retno Wahyudi Rifdarmon Rifelino Rifelino Rizki Vananda Rizky Ema Wulansari Robby Mulya SABRINA, ELSA Sabtu, Sabtu Saputra, Firman Omni Silvia, Febri Simon, Ryan Ananda Sinukaban, Veronica Yulisna Sisrayanti Soretire Lanrewaju Kamorudeen Sri Haryati Sri Rizki Putri Primandari Sukardi, Sukardi Sundhy Pareza Suparno Suparno Suparno Suparno Supriadi Supriadi Supriadi Supriadi Syafrianto Syafrianto Syahril Syahril Tambunan, Gerry Lyman Tarig Elshaarani Tiara Klaudia H H Toto Sugiarto Totoh Andayono Unung Verawardina, Unung Wakhid, Wakhinuddin Wakhinuddin Wakhinuddin, Wakhinuddin Wanda Afnison Waskita Waskita Waskito Waskito Waskito, Waskito Wike Oriza Wildy, Fadhlan Wirdianto, Eri Wulansari, Rizky Ema Yandra, Muvi Yelfianhar, Ichwan Yolli Fernanda Yudi Star Novsky Yufrizal Yufrizal, Yufrizal Yus Donald Chaniago Zainal Abadi Zulbadri Zulbadri