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All Journal Jurnal Energi Dan Manufaktur Jurnal Simetris Rekayasa Mesin Jurnal Rekayasa Mesin E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal Ilmiah Rekayasa Pertanian dan Biosistem JTERA (Jurnal Teknologi Rekayasa) Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Abdi Dosen : Jurnal Pengabdian Pada Masyarakat AME (Aplikasi Mekanika dan Energi) : Jurnal Ilmiah Teknik Mesin Journal of Applied Science and Advanced Engineering Almikanika Jurnal Rekayasan Lingkungan dan Biosistem
Roy Waluyo
Universitas Ibn Khaldun Bogor
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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Optimasi Cairan Pendingin Fluida Nano (SiO2+EG/W) Menggunakan RSM-CCD Pada Pendingin Panel Surya Ardi Rajab, Dede; Abdullah, Amri; Afriani, Ina; Sukarman; Khoirudin; Taufik Ulhakim, Muhamad; Waluyo, Roy
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 9 No. 2 (2023)
Publisher : Universitas Ibn Khaldun Bogor

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Abstract

Intensitas radiasi matahari dan suhu udara di sekitar berpengaruh pada tegangan dan arus yang dihasilkan oleh sel surya. Semakin rendah intensitas penyinaran matahari, semakin rendah pula arus dan tegangan yang dihasilkan. Tegangan yang dihasilkan menurun seiring dengan kenaikan suhu. Kondisi ini memerlukan suatu alat yang dapat mengatur keadaan suhu pada panel surya. Penelitian ini dilakukan untuk mengatasi permasalahan panas pada panel surya melalui optimasi sifat termal fluida pendingin dengan menambahkan partikel SiO2 berukuran nano ke cairan dasar W/EG, yang umum disebut fluida nano (Nanofluids). Pembuatan desain serpentine channel sebagai alat penukar kalor juga turut dilakukan. Proses optimasi perpindahan panas dilakukan menggunakan Respon Surface Metodology-Central Composite Design  (RSM-CCD), lalu proses uji eksperimental dilakukan dengan variasi laju alir 1 - 3 LPM dan suhu masuk dijaga pada 35oC. Hasil penelitian menunjukkan kesesuaian antara hasil RSM-CCD dan hasil percobaan dengan alat uji, dimana laju alir fluida pendingin tertinggi merupakan kondisi yang paling optimum. Penurunan suhu T2 masing-masing sebesar 12,568oC pada laju alir 3 LPM, 11,286oC pada laju alir 2 LPM dan 11oC pada laju alir 1 LPM. Dari uji coba selama 13 menit pada masing-masing laju alir dengan suhu masuk dijaga 35oC diperoleh hasil bahwa terjadi peningkatan  ΔTavg sebesar 28,62%. Kata kunci: fluida nano; panel surya; RSM-CCD; serpentine channel; SiO2.
Application-based Simulations to Understand the Management Concepts of Electrical Load-shedding: A Case Study of the Electricity System on Offshore Platforms Goeritno, Arief; Syamsudin, Tangtang; Azama, Irham Muhammad; Waluyo, Roy; Fitriani, Fitriani
Journal of Applied Science and Advanced Engineering Vol. 4 No. 1 (2026): JASAE: March 2026
Publisher : Master Program in Mechanical Engineering, Gunadarma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59097/jasae.v4i1.69

Abstract

This article describes the management concepts of electrical load-shedding in the electricity system of the offshore platforms environments for drilling to produce gases and oils. Stable and efficient electrical systems are essential for offshore platforms to ensure safety, productivity, and operational continuity. Load-shedding is a critical function that maintains the balance between power generation and demand during contingency events. This study employs an application-based simulation methodology to evaluate management strategies for electrical load-shedding in offshore electricity systems. Eight simulation scenarios assessed various operational conditions, including generator capacity, transformer performance, cable characteristics, and load prioritization. The results identify the feasibility and limitations of each scenario, illustrating the effects of different shedding strategies on power flow distribution, voltage stability, and system losses. The analysis shows that some configurations maintain stability margins, while others result in operational infeasibility due to voltage drops and overloading. The findings emphasize the necessity of structured load prioritization and the integration of automation using programmable logic controller (PLC)-assisted systems to improve system resilience. These results offer practical guidance for offshore operators, supporting enhanced planning and decision-making for reliable load-shedding strategies.
Aerodynamic Performance of the NACA 0012 Airfoil: Lift and Drag Characteristic Across a Range of Angles of Attack Septiawan, Dedy; Yuliaji, Dwi; Waluyo, Roy
Journal of Applied Science and Advanced Engineering Vol. 4 No. 1 (2026): JASAE: March 2026
Publisher : Master Program in Mechanical Engineering, Gunadarma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59097/jasae.v4i1.79

Abstract

The wing is one of the most critical components in an aircraft structure, as it directly contributes to the generation of lift, which enables flight. Without wings, an aircraft would be unable to produce lift or counter aerodynamic drag effectively. This study aims to analyze the lift and drag forces acting on a NACA 0012 airfoil under varying angles of attack and flow velocities. Two approaches were employed: numerical simulations using ANSYS Fluent to investigate airflow patterns and pressure distribution on the upper and lower surfaces of the airfoil, and experimental testing in a wind tunnel to validate and complement the findings. The experiments considered angles of attack of 0°, 3°, 6°, and 9°, with freestream velocities of 1 m/s and 3 m/s. The quantitative data collected include lift coefficient (CL), drag coefficient (CD), the relationships between CL–α, CD–α, and CL–CD, as well as pressure and velocity distributions from the CFD simulations. Both computational and experimental results indicate that increasing the angle of attack produces a significant change in the lift and drag characteristics of the airfoil. In conclusion, variations in the angle of attack have a substantial impact on the aerodynamic flow behavior around the airfoil and on the magnitude of the resulting lift and drag forces.
Co-Authors Abdul Rahman Abdullah, Amri Abrista Devi Ade Fahrudin Adi Yoga Pratama Afriani, Ina Ahmad Suhaedi Amelia . Amri Abdulah Anggraini, Yeni Annisa, Sarah Chairul Anton Royanto Ahmad Ardi Rajab, Dede Ari Hidayat Arief Goeritno Atmaja, Muhammad Iqbal Azama, Irham Muhammad Beny Syawaludin Budi Hartono Budi Hartono Budiman, Arif Adtyas Budiyanto, Nur Rochman Chayati, Nurul Deendarlianto Dian Wulandari Dwi Rahmalina, Dwi Dwi Yuliaji Eko Hadi Purwanto Fahmi Aldiansyah Fahrudin, Ade Fahrulrizal Fahrulrizal Fahrulrizal, Fahrulrizal farizal, achmad Faturahman, Rangga Aditya Fauzan, Azka Rizqi Fauzan, Muhammad Ahsan Fauzan, Rifqi Fauzi, Amal Fauzy, Restu Fithri Muliawati Fitriani Fitriani Fitriani Fitriani Gustiana, Angga Gustiana, Muhamad Halif Hakim, Muhammad Iqbal Furqonul Hana Subhiyah Hidayat, Muhamad Ari Husna, Agus Ilyas, Muslim Indarto Indarto Ismaya, Jimmy Isnaini, Ismet Jaenal, Jaenal Joki Irawan Jos Budi Sulistyo Kasmudin Kharisma, Sunandi Khoirudin Kurniansyah, Kurniansyah Kurnianto, Angga Kurniawan, Ainul Septian Kusmawan, Rudi Luluk Dianarini MAMAT RAHMAT Mamat Rahmat MARDIANA Maryadi , Shendy Akbar Maryadi, Shendy Akbar Moniaga, Prya Muhamad Lutfi Muhamad Yulianto Muhammad, Begawan Muhidin Muhidin Mulya Juarsa Nasution, Addiena Syahvina Nur Alam, Deden Nur Aziz Oktaviandi, Ryan PAMUNGKAS, ADHIKA ENGGAR Pramono, Gatot Eka Pramono, Gatot Eka Prastowo, Dian Adi Putra, Esa Putut Hery Setiawan Rahmat Maulana Putra, Dwi Dian Rajab, Dede Ardi Ramadhan, Afham Rezon, Kevin Ritzkal, Ritzkal Rudi Irawan Rulhendri Rulhendri Sanda Saputro, Ilham Aji Septiawan, Dedy Setiawan, Ilham Heru Setya Permana Sutisna Shieddique, Apang Djafar Slamet Widodo Sukarman SUMADI SUMADI Suratun Suratun Sutoyo, Edi Syaiful Syaiful Syamsudin, Tangtang Syawalludin, Muhammad Ilham Syawaludin, Adrian Tachli Supriyadi Taufik Ulhakim, Muhamad Tika Hafzara Siregar Tukiman Wahyuni, Asri Yanto, Ausatha Rabbany Yogi Sirod Gaoz Yusuf, Aditia Maulana