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All Journal Jurnal Keteknikan Pertanian Prosiding Semnastek POROS TEKNIK INTEKNA Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Jurnal Sains dan Informatika Angkasa: Jurnal Ilmiah Bidang Teknologi Jurnal Elemen Jurnal IMPACT: Implementation and Action Infotekmesin Buletin Profesi Insinyur Bubungan Tinggi: Jurnal Pengabdian Masyarakat Indonesian Journal for Social Responsibility International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Journal of Mechanical Engineering, Science, and Innovation Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) International Journal of Innovation in Mechanical Engineering and Advanced Materials
Gunawan Rudi Cahyono
Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences 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 Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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PEMANFAATAN ENERGI SURYA SEBAGAI SUMBER ENERGI LISTRIK ALTERNATIF PADA MUSHOLA NURUL HIKMAH KELURAHAN LOKTABAT UTARA-BANJARBARU UNTUK MENCAPAI GREEN-ENERGY MOSQUE Cahyono, Gunawan Rudi; Subagyo, Rachmat; Ansyah, Pathur Razi; Ramadhan, M. Nizar; Jauhari, Muhammad Firdaus
Jurnal IMPACT: Implementation and Action Vol. 4 No. 1 (2021): Jurnal Impact
Publisher : Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/impact.v4i1.1232

Abstract

Indonesia mempunyai potensi energi matahari yang cukup besar, karena terletak didaerah tropis. Energi surya adalah energi yang sangat bersahabat karena tidak bersifat polutif, tidak dapat habis dan gratis. Mushola Nurul Hikmah sebagai salah satu pusat peribadatan yang berada di daerah Kelurahan Loktabat Utara Banjarbaru Utara mempunyai motto pengembangan mushola bernuansa hijau baik dari segi tata letak, tata kelola lingkungan, maupun sumber energi yang digunakan. Dari segi tata kelola dan tata letak lingkungan, pihak pengurus Mushola telah menempatkan taman hijau dan perkebunan hidroponik. Dari segi sumber energi listrik, mereka masih menggunakan sumber utama dari PLN dan genset. Kelemahan genset terkait masalah polusi dan suara yang mengganggu kekhusyuan peribadatan. Pihak pengurus mushola beberapa kali mendapatkan keluhan dari Jamaah terkait dengan suara kebisingan tersebut sehingga sangat diperlukan solusi yang lebih efisien baik dari segi daya maupun polusi yang ditimbulkan. Salah satu teknologi energi yang bisa dimanfaatkan dengan minim polusi udara dan suara adalah teknologi panel surya yang bisa mengkonversi langsung intensitas cahaya matahari menjadi sumber energi listrik alternatif. Hal-hal yang perlu diperhatikan dalam perancangan panel surya adalah: besarnya beban total yang akan digunakan, jumlah Modul yang diperlukan, jenis atau karakteristik Modul yang akan dipilih, posisi lintang lokasi dimana system SHS akan dipasang dan besarnya kapasitas AKI yang diperlukan. Apabila akan dilakukan instalsi secara bertahap sesuai perencanaan anggaran, maka kapasitas daya AKI dan Panel surya seterusnya idealnya harus sama dengan yang sebelumnya sudah terpasang, agar tidak terjadi overcharge dan overload. Dengan mengikuti langkah-langkah perencanaan yang telah diuraikan diatas, maka kesesuaian antara kebutuhan, harga, dan kualitas akan dicapai. Kata kunci: energi surya, beban total, Modul, posisi lintang, kapasitas AKI
Analysis of the Effect of Delay Time and Type of Coolant Media with the Spray Method on the Back Surface of PV Panel Ansyah, Pathur Razi; Hartoyo, Muhammad Hendrawan Septian; Budianto, Akhmad Ghiffary; Cahyono, Gunawan Rudi; Subagyo, Rachmat
Journal of Mechanical Engineering, Science, and Innovation Vol 4, No 2 (2024): (October)
Publisher : Mechanical Engineering Department - Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jmesi.2024.v4i2.6440

Abstract

Sunlight can be harnessed as a clean and renewable energy source using solar cells and the photovoltaic process. However, relying on direct sunlight exposure can increase solar cell temperatures and negatively impact performance. This research aims to maintain cell efficiency by exploring the effectiveness of spraying coolant media on the bottom surface of panels through three timed intervals (10, 20, and 30 minutes) using three different media (A, B, and C). Each spray application lasts for 1 minute. Analyzing the test results with Minitab18 software with full factorial design will identify the most effective treatment for maintaining performance. Based on the results of the experimental test, coolant A with a 10-minute delay spraying time has a maximum power of 52.89 Watts, a temperature of 48oC, and an efficiency of 5.69%. Response Optimization using Design of Experiment (DOE) Full Factorial shows an optimal response with coolant A and a 10-minute delay spraying time with the lowest temperature at 49.3oC, maximum output power at 46.87 Watts, and efficiency at 5.61%. Moreover, Tukey Krammer test result provides an information about 10-minute delay spraying time has a better performance to reduce the PV panel temperature compared to 30-minute delay spraying time by 3.94 oC.
AN EXPERIMENTAL STUDY OF THE EFFECT OF VARIATION OF IMPACT LEVELS ON WORKING EFFICIENCY OF ARCHIMEDES SCREW TURBINE ON MICRO-HYDRO POWER PLANT Nugraha, Andy; Silalahi, Dani Surya Hamonangan; Ansyah, Pathur Razi; Ramadhan, Muhammad Nizar; Amrullah, Apip; Cahyono, Gunawan Rudi
International Journal of Mechanical Engineering Technologies and Applications Vol. 4 No. 1 (2023)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2023.004.01.1

Abstract

Micro-hydro power plants take advantage of the energy potential of low-head airflow. with the development of technology that can support it, namely the Archimedes screw turbine as the driving force. Various parameters must be considered to determine the performance of micro hydro power plants with Archimedes screw turbines. A design is carried out with a discharge parameter flow rate of 2 l/s, a turbine slope of 300, and an immersion level variation of 0.3, 0.5, and 0.7, where the final result shows the value of torque, hydraulic power, mechanical power, generator, and efficiency, which decreases with the level of water immersion in the last blade.
Perbandingan Performa Algoritma Support Vector Machine (SVM) dan Logistic Regression untuk Analisis Sentimen Pengguna Aplikasi Retail di Android Budianto, Akhmad Ghiffary; Rusilawati, Rusilawati; Suryo, Arief Trisno Eko; Cahyono, Gunawan Rudi; Zulkarnain, Andry Fajar; Martunus, Martunus
Jurnal Sains dan Informatika Vol. 10 No. 2 (2024): Jurnal Sains dan Informatika
Publisher : Teknik Informatika, Politeknik Negeri Tanah Laut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/jsi.v10i2.911

Abstract

Platform Google Play Store menyediakan fitur pemberian masukan dan penilaian dari pelanggan terhadap aplikasi yang tersedia. Aplikasi retail di android dapat menjadikan hal tersebut sebagai salah satu metrik utama untuk memantau kinerja. Analisis sentimen merupakan salah satu bagian dari NLP dan text mining yang digunakan untuk melihat sentimen dari opini dalam ulasan pengguna di aplikasi tersebut. Penelitian ini bertujuan untuk membandingkan performa algoritma SVM dan logistic regression dalam klasifikasi sentimen ulasan pengguna aplikasi tersebut. Dari 4250 data ulasan pengguna, 3400 data digunakan sebagai data training dan 850 data digunakan sebagai data testing. Hasilnya didapatkan klasifikasi dengan SVM dan logistic regression sama-sama memiliki tingkat akurasi 0,87, namun namun Logistic Regression menunjukkan performa yang lebih baik dalam mengidentifikasi sentimen positif dengan nilai F1 score 0.89 dibandingkan SVM (0.78). Logistic Regression juga memiliki misklasifikasi yang lebih sedikit (110) dan nilai True Positive (TP) dan True Negative (TN) yang lebih tinggi dibandingkan SVM. Secara keseluruhan, Logistic Regression menunjukkan performa yang lebih baik dalam mengklasifikasikan sentimen ulasan pengguna aplikasi retail dibandingkan SVM.
Pemanfaatan Teknologi Internet of Things untuk Penunjang Model Pembelajaran Science, Technology, Engineering and Mathematics Budianto, Akhmad Ghiffary; Zulkarnain, Andry Fajar; Suryo, Arief Trisno Eko; Cahyono, Gunawan Rudi; Rusilawati, Rusilawati; Wibowo, Bayu Setyo; Az-Zahra, Siti Fathimah; Atmadja, Fridho Ery Dwi; Najua, Siti Nur
Indonesian Journal for Social Responsibility Vol. 7 No. 01 (2025): June 2025
Publisher : LPkM Universitas Bakrie

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/ijsr.v7i01.412

Abstract

The development of outstanding human resources can be achieved through the application of Science and Technology (S&T) in education. The focus of applying S&T is on the Science, Technology, Engineering, and Mathematics (STEM) learning approach. The STEM learning approach equips students with the ability to think creatively, critically, and problem-solving oriented, as well as to work collaboratively in teams, adapt to technological advancements, and continue to innovate. A lack of examples regarding the methods and applications of the latest technology in STEM fields poses a problem for students in schools. Students often struggle with understanding theories due to the absence of engaging demonstrative examples. The use of the Internet of Things (IoT) in various fields and daily life serves as an example of STEM application. Introducing IoT in several science subjects such as Physics, Chemistry, Biology, and Mathematics can provide engaging and relevant learning experiences. The goal of this Community Service activity is to provide an introduction and examples of IoT application as a supporting model for STEM learning at SMAN 1 Banjarbaru. The method used involves socializing IoT technology and including practical applications of IoT in STEM fields, such as assembling IoT kit components with WeMos D1, ESP32 NodeMCU, and various sensors for measuring temperature and pH. It is expected that students will understand the application of the latest IoT technology in STEM fields. Additionally, the school will be able to provide engaging, up-to-date learning experiences in technology that are relevant to the latest curriculum. As the result, three groups of students, each consisting of five members, successfully developed an IoT system for measuring liquid temperature and pH.
AN EXPERIMENTAL STUDY OF THE EFFECT OF VARIATION OF IMPACT LEVELS ON WORKING EFFICIENCY OF ARCHIMEDES SCREW TURBINE ON MICRO-HYDRO POWER PLANT Nugraha, Andy; Silalahi, Dani Surya Hamonangan; Ansyah, Pathur Razi; Ramadhan, Muhammad Nizar; Amrullah, Apip; Cahyono, Gunawan Rudi
International Journal of Mechanical Engineering Technologies and Applications Vol. 4 No. 1 (2023)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2023.004.01.1

Abstract

Micro-hydro power plants take advantage of the energy potential of low-head airflow. with the development of technology that can support it, namely the Archimedes screw turbine as the driving force. Various parameters must be considered to determine the performance of micro hydro power plants with Archimedes screw turbines. A design is carried out with a discharge parameter flow rate of 2 l/s, a turbine slope of 300, and an immersion level variation of 0.3, 0.5, and 0.7, where the final result shows the value of torque, hydraulic power, mechanical power, generator, and efficiency, which decreases with the level of water immersion in the last blade.
Pengaruh Variasi Pulsed-Spray Time dengan Water Coolant Pada Media Pendinginan Terhadap Efisiensi dan Temperatur Panel Surya Ansyah, Pathur Razi; Cahyono, Gunawan Rudi; Budianto, Akhmad Ghiffary Budianto; Amrullah, Apip; Farobie, Obie; Jamalulail, Nanda; Lukmana, Wahyu
Jurnal Keteknikan Pertanian Vol. 13 No. 1 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.1.18-38

Abstract

Teknologi panel surya memungkinkan konversi cahaya matahari menjadi energi listrik. Akan tetapi, ada masalah yang dapat muncul pada kinerja panel surya, misalnya peningkatan suhu panel surya melebihi batas kerjanya sendiri. Suhu yang semakin meningkat akan membuat kinerja panel surya semakin berkurang. Maka, penting menjaga suhu panel surya sangat diperlukan agar performanya tetap optimal. Penelitian ini dilakukan untuk mengetahui pengaruh delay timing back and front surface spray cooling terhadap temperatur rata – rata, daya output, dan pengoptimalan energi panel surya. Pengujian ini menghasilkan temperatur panel surya sangat menurun ketika delay timing spray 10 menit senilai 58,95°C, ketika delay timing spray 20 menit senilai 70,78°C, sedangkan ketika delay timing spray 30 menit senilai 78,63°C. Metode pendinginan yang dilakukan selama 1 menit dengan variasi delay timing spray 10 menit, 20 menit, dan 30 menit. Uji eksperimental ini dapat menurunkan suhu panel surya, pada delay timing spray 10 menit menjadi 58,95°C, pada delay timing spray 20 menit menjadi 70,78°C, dan pada delay timing spray 30 menit menjadi 78,63°C. Metode pendinginan dilakukan selama 1 menit dengan delay timing spray yang bervariasi yaitu 10 menit, 20 menit dan 30 menit. Melalui pengujian ini juga diperoleh nilai energi total. Apabila delay timing spray 10, 20 dan 30 menit masing-masing sebesar 8,61 x 10-3 kWh (30982,06 Joule), 8,03 x 10-3 kWh (28890,32 Joule) dan 7,61 x 10-3 kWh (27408,06 Joule). Kesimpulan dari penelitian yang telah dilakukan adalah delay timing spray yang paling optimal delay timing spray selama 10 menit dengan suhu rata-rata sebesar 58,95°C, dan optimalisasi energi terbaik adalah dengan energi total sebesar 30982,06 Joule atau 8,61 x 10 -3kWh.
Educational Robotics Workshop for Developing Wasaka Character Dewantara, Dewi; Hartini, Sri; Cahyono, Gunawan Rudi; Hutabarat, Putri Pradita; Arifin, M Ilham; Az-Zahra, Siti Fathimah; Nurahma, Yosnandia Dwi
Bubungan Tinggi: Jurnal Pengabdian Masyarakat Vol 7, No 4 (2025): NOVEMBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/btjpm.v7i4.16761

Abstract

The community service activity was carried out as an effort to enhance the competence of physics teachers in Hulu Sungai Selatan Regency in designing contextual, innovative, and culturally rooted learning. The partner of this activity was the MGMP (Musyawarah Guru Mata Pelajaran) of physics, consisting of 22 teachers. This activity adopted the Participatory Action Research (PAR) method, involving teachers as active participants throughout the process.  The program was conducted through several stages, namely socialization, training, robotics practice, mentoring, and evaluation. This approach ensured that the solutions developed were relevant and aligned with the needs and capacities of the teachers. The medium used was ArtecRobo, which supports the application of technology-based learning. The results of the activity indicated an improvement in teachers’ understanding of integrating the Wasaka character—reflecting resilience and consistency—into physics learning through authentic experiences of assembling and programming robots. Teachers not only gained technical skills but also directly experienced how robotics can foster perseverance, collaboration, and problem-solving abilities. Participant responses were positive, with 87% of teachers stating the activity was highly beneficial and 80% reporting that they were motivated to implement it in their classrooms. The implication of this activity is the need for continuous mentoring and the provision of robotics facilities in schools so that the integration of Wasaka character can be optimized and support the achievement of 21st-century skills.
A Text Mining Approach to Analyzing the Omnichannel Retail Business Performance of the KlikIndomaret App Budianto, Akhmad Ghiffary; Suryo, Arief Trisno Eko; Zulkarnain, Andry Fajar; Cahyono, Gunawan Rudi; Rusilawati, Rusilawati; Az-Zahra, Siti Fatimah
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 26 No. 2 (2024): December 2024
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jti.26.2.131-144

Abstract

The evolution of Web 2.0 technology has significantly influenced the use of Android applications, enabling users to provide feedback through reviews and star ratings. In managing omnichannel retail businesses, this user-generated content serves as a valuable source of information for performance evaluation and strategic management of both online and offline operations. Large-scale user review data is well-suited for analysis through text mining, particularly in sentiment analysis, when combined with topic and keyword filtering in the business domain. This study utilizes the RoBERTa Transformer model for the sentiment classification of user reviews. Among the 520 user reviews, 211 displayed good emotion, while 309 showed negative sentiment. By applying filtering processes to topics and keywords within the omnichannel retail business domain, the study identifies "economic value" and "delivery and CRM" as priority areas for improvement. This conclusion is drawn based on the significant disparity between positive and negative sentiments. As a result, management can formulate strategies to enhance the performance and user experience of the KlikIndomaret Android application.
Peningkatan Kompetensi Siswa SMK di Bidang Computer Vision dengan Implementasi YOLO dan Raspberry Pi 4 Arief Trisno Eko Suryo; Akhmad Ghiffary Budianto; Andry Fajar Zulkarnain; Gunawan Rudi Cahyono; Rusilawati Rusilawati; Bayu Setyo Wibowo; Marcfiliadi Ezra Nugroho; Fridho Ery Dwi Atmadja; Feby Zulviana Efendi
Indonesian Journal for Social Responsibility Vol. 8 No. 01 (2026): June 2026
Publisher : LPkM Universitas Bakrie

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/ijsr.v8i01.543

Abstract

The rapid development of Artificial Intelligence (AI) technology up to 2025 has positioned Computer Vision (CV) as a crucial field in industrial applications, increasing the demand for competent graduates. Vocational High Schools (SMKs) are intended to prepare students for high employability; however, a situational analysis conducted at SMK Telkom Banjarbaru, South Kalimantan, Indonesia, revealed a gap in students’ understanding and practical application of CV technologies caused by limited learning resources and inadequate curriculum integration. The Community Service Program (Pengabdian kepada Masyarakat, PkM) of the Electrical Engineering Department aimed to introduce fundamental CV concepts to enhance students’ competencies and support digital literacy initiatives. The program employed a project-based training approach, combining theoretical sessions with practical demonstrations of a real-time face detection system using Raspberry Pi 4, OpenCV, and YOLO. The effectiveness of the program was evaluated through pre- and post-assessment surveys involving 30 participants (28 students and 2 supervising teachers). The results demonstrated successful implementation of an object detection system capable of detecting single and multiple faces with accuracy approaching 1.00 (100%). Survey findings indicated an increase in participants’ understanding of CV and digital literacy from 57% to 85%. Students’ comprehension of the difference between object classification and object detection improved from 64% to 89%, while their understanding of machine learning principles increased from 60% to 89%. Overall satisfaction with the program reached 89%. In conclusion, this community service program effectively bridged the competency gap and serves as a collaborative model between higher education institutions and vocational schools.
Co-Authors Abdul Ghofur Abdul Ghofur Aji Nihin Akhmad Ghiffary Budianto Akhmad Syarief Andy Nugraha Apip Amrullah Apip Amrullah Arifin, M Ilham Atmadja, Fridho Ery Dwi Az-Zahra, Siti Fathimah Az-zahra, Siti Fatimah Bayu Setyo Wibowo Dewi Dewantara, Dewi Fajar Zulkarnain, Andry Feby Zulviana Efendi Fridho Ery Dwi Atmadja Hartoyo, Muhammad Hendrawan Septian Hutabarat, Putri Pradita Isworo, Hajar Jamalulail, Nanda Jerry Iberahim Joni Riadi Joni Riadi Joni Riadi, Joni Khairunnisa Khairunnisa Khairunnisa Khairunnisa Lukmana, Wahyu M. Reynaldi Perdana Saputra M. Reynaldi Perdana Saputra Ma'ruf, Ma'ruf Marcfiliadi Ezra Nugroho Martunus Martunus Muhammad Firdaus Jauhari, Muhammad Firdaus Muhammad Muntaha Muhammad Munthaha Muhammad Nizar Ramadhan Muntaha, Muhammad Munthaha, Muhammad N. Alexius Mikael Najua, Siti Nur Noviani Haty Lala Nurahma, Yosnandia Dwi Nurmahaludin Nurmahaludin Nuryasin Qadimil Awaly Nuryasin Qadimil Awaly Obie Farobie P.S.M. Reynaldi Pathur Razi Ansyah Rachmat Subagyo Rachmat Subagyo Ramadhan, M. Nizar Rusdi Rusdi Rusilawati Rusilawati Saputra, M. Reynaldi Perdana Sarifudin Sarifudin Sarifudin sarifudin, Sarifudin Silalahi, Dani Surya Hamonangan Sri Hartini Sunu Hasta Wibowo Suryo, Arief Trisno Eko Wibowo, Bayu Setyo Zainal Aqli