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Muhammad Ruswandi Djalal
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INDONESIA
Jurnal Teknik Mesin Sinergi
Published by Politeknik Negeri Ujung Pandang
ISSN : 16931548     EISSN : 26849372     DOI : http://dx.doi.org/10.31963/sinergi
Core Subject : Science, Engineering,
Energy Mechanical Engineering
Jurnal Teknik Mesin Sinergi Politeknik Negeri Ujung Pandang mempublikasikan hasil penelitian pada Bidang Teknik Mesin dan Energi.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 456 Documents
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Optimasi Proses Sandblasting dengan Rotary Clamping Nur Udzry Hendriady, Ahmad; Kambuno Putra, Kevin; Dirham, Muhammad Riyadh Ramadhan; Zubair Sultan, Ahmad
Jurnal Teknik Mesin Sinergi Vol 23 No 2 (2025): Oktober 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v23i2.5633

Abstract

Abstrak: Penelitian ini berfokus pada optimasi proses sandblasting menggunakan mekanisme rotary clamping. Pengujian dilakukan dengan variasi tekanan kerja 4, 6, dan 8 bar menggunakan media pasir silika 14/20 mesh. Hasil menunjukkan kinerja optimal pada tekanan 6–7 bar dengan kecepatan semburan 990 m/s, efisiensi penggunaan media abrasif sebesar 145%, serta pengurangan waktu pembersihan yang signifikan. Kata kunci: Sandblasting; Rotary Clamping; Pembersihan Permukaan.
Investigasi Struktur Makro Material Nikel Sambungan Battery Pack Hasil Spot Welding Nasrullah, Baso; Arsyad Suyuti, Muhammad; Nathaniel Sahusilawane, Allen; Rais Rahim, Muh; Akhmad Maulid Hadiullah
Jurnal Teknik Mesin Sinergi Vol 24 No 1 (2026): April 2026
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v24i1.5638

Abstract

Spot welding is one of the resistance welding methods widely applied in battery pack assembly due to its time efficiency and ease of implementation. This study aims to investigate the macrostructure of spot-welded nickel strip joints as connectors for battery cells and to optimize the process parameters using the Taguchi method. The varied parameters include welding mode, number of spots, and number of pulses. The welding process was carried out using an automatic spot welding machine, and the joints were analyzed through macrostructural observations using a digital microscope as well as shear strength testing. The results revealed that variations in welding parameters significantly affect nugget size. Based on Taguchi analysis, the optimal parameter combination produced a solid and symmetrical nugget, which correlated with higher shear strength of the joint. This study demonstrates that macrostructure has a strong correlation with joint strength and can serve as a reference in quality control of spot-welded battery pack joints.
Analisis Pemakaian Energi Sendiri dan Potensi Penghematan Pada PLTU Barru Achmad, Ardiansyah; Pangkung, Andreas; Shiddiq Yunus, A. M
Jurnal Teknik Mesin Sinergi Vol 23 No 2 (2025): Oktober 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v23i2.5657

Abstract

Pembangkit Listrik Tenaga Uap (PLTU) Barru memiliki tantangan dalam efisiensi pemakaian energi sendiri (host load), yang memengaruhi biaya operasional dan kinerja pembangkit. Penelitian ini menganalisis konsumsi energi pemakaian sendiri dan potensi penghematannya melalui audit energi awal dan rinci. Data dikumpulkan dari pemantauan harian peralatan utama seperti Boiler Feed Pump (BFP), Primary Air Fan (PAF), dan Induced Draft Fan (IDF). Hasil audit menunjukkan bahwa BFP merupakan konsumen energi terbesar, menyumbang 27,83% (Unit 1) dan 28,19% (Unit 2) dari total pemakaian. Analisis lebih lanjut mengidentifikasi bahwa penerapan Variable Frequency Drive (VFD) pada BFP dapat mengoptimalkan operasi pompa dengan menyesuaikan kecepatan motor sesuai kebutuhan beban. Simulasi pengaturan frekuensi inverter ke 48 Hz membuktikan penghematan energi sebesar 55,90 kWh per hari. Selain itu, temuan menunjukkan adanya peningkatan arus kerja pada beberapa peralatan akibat kerusakan valve isolasi, yang turut berkontribusi pada pemborosan energi. Penelitian ini merekomendasikan pemeliharaan berkala dan penggunaan teknologi VFD untuk meningkatkan efisiensi sistem. Implementasi rekomendasi ini tidak hanya mengurangi biaya operasional tetapi juga mendukung kebijakan konservasi energi nasional sesuai ISO 50001 dan Undang-Undang No. 30 Tahun 2007.. Kata Kunci: PLTU Barru, energi pemakaian sendiri, efisiensi energi, Boiler Feed Pump, Variable Frequency Drive, audit energi.
Monitoring Kelistrikan Tree Wind Turbine Berbasis Internet of Things Paisal; Taufik , Akhmad; Yansi Parorengan; Al Azhali SR , Arham
Jurnal Teknik Mesin Sinergi Vol 24 No 1 (2026): April 2026
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v24i1.5699

Abstract

Abstract: The Tree Wind Turbine is an innovative renewable energy solution designed in the shape of a tree, with small turbines acting as “leaves” that capture wind from various directions. This design is well-suited for urban environments due to its aesthetic appearance and eco-friendly nature. However, the system requires real-time monitoring of current and voltage from each turbine to ensure optimal efficiency and to detect potential issues early.This research aims to design an Internet of Things (IoT)-based monitoring system to track current, voltage, and wind speed on each turbine in real time. The system uses an ESP32 microcontroller, equipped with ACS712 current sensors, 0–25V voltage sensors, and ADS1115 modules for accurate readings. The collected data is transmitted to an online database and displayed in graphical form through a web dashboard.Testing results show that the system successfully monitors electrical data such as voltage, current, and wind speed accurately. The data is displayed in real time and remains stable, enabling clear differentiation between the performance of turbines with 3, 4, and 5 blades. This system effectively supports efficient wind energy utilization and serves as a practical IoT-based monitoring solution for urban settings. Keywords: esp32; sensor; turbine; savonius; monitoring; wind speed
Penerapan Sensor dan Aktuator pada Mesin Basketball Arcade Afif Rahmat, Muh; Pasulu', Yaston; Taufik, Akhmad; Ka’ka, Simon
Jurnal Teknik Mesin Sinergi Vol 23 No 2 (2025): Oktober 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v23i2.5703

Abstract

Permainan bola basket konvensional membutuhkan ruang luas dan biaya tinggi, sedangkan pencatatan skor manual rawan salah. Mesin basketball arcade ditawarkan sebagai solusi yang lebih praktis dan terjangkau dengan dua kunci teknologi sensor inframerah (IR) untuk mendeteksi bola masuk (skor) secara otomatis, serta aktuator motor DC untuk menggerakkan ring kiri–kanan dan motor servo untuk mekanisme penahan/pelepasan bola agar permainan menantang namun tetap terkontrol. Tujuan dari penelitian ini adalah untuk menghitung poin/score dengan menggunakan sensor inframerah, serta meningkatkan tantangan bermain dengan menggunakan aktuator untuk menggerakan ring ke kiri dan ke kanan. Mesin basketball arcade ini juga dapat menjadi alternatif bermain bola basket dengan ruangan minimBerdasarkan hasil dan deskripsi diatas, dapat disimpulkan bahwa sensor inframerah dapat digunakan untuk menghitung poin/score pada mesin Basketball Arcade, dengan tingkat keberhasilan tertinggi mencapai 82,41% di seluruh mode dan durasi. Serta motor dc dan servo dapat digunakan sebagai aktuator untuk mesin basketball arcade.
Pengembangan Desain Mesin Pengaduk Campuran Bahan Briket Arang Temprung Kelapa Fauzi, Ibnu; Satria, Kiki; Ihsan Rustam, Muh; Nasrullah, Baso; Arman, Arman
Jurnal Teknik Mesin Sinergi Vol 23 No 2 (2025): Oktober 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v23i2.5720

Abstract

Abstrak: Penelitian ini bertujuan untuk mengembangkan Mesin Pencampur Arang Batok Kelapa dan Binder untuk produksi briket arang. Penelitian ini berfokus pada perancangan mesin yang mampu mencampur serbuk arang batok kelapa dan binder dengan kapasitas produksi maksimum 250-300 kg/jam. Mesin ini digerakkan oleh motor listrik dan dilengkapi dengan puli dan sabuk-V. Metode penelitian meliputi perancangan, manufaktur, dan pengujian kinerja mesin. Hasil penelitian menunjukkan bahwa mesin pencampur dapat memproses 95,4 kg per 20 menit dan menghasilkan campuran yang memenuhi standar industri untuk produksi briket. Proses pengujian juga mengonfirmasi efisiensi mesin. Hasil penelitian menunjukkan bahwa mesin pencampur arang batok kelapa yang dilengkapi dengan motor listrik dapat meningkatkan efisiensi produksi briket. Mesin ini menghasilkan campuran yang seragam dalam waktu 20 menit setiap proses pencampuran dengan kapasitas hingga 286,2 kg/jam. Kata kunci: Batok kelapa; Mesin pencampur; Produksi briket; Perancangan mesin; pencampuran seragam.
Rancang Bangun Pembangkit Listrik Tenaga Surya untuk Kebutuhan Rumah Kebun di Kabupaten Selayar Sapruddin, Ayu Fitriah; Nur Rahmah H. Anwar; Firman; Yiyin Klistafani; Yusuf Yunus, Muhammad; Marhatang; Shiddiq Yunus, A.M; Anastasya, Anastasya; Wulandari, Wulandari
Jurnal Teknik Mesin Sinergi Vol 23 No 2 (2025): Oktober 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v23i2.5730

Abstract

Solar Power Plants (PLTS) are renewable-based electricity systems for areas not yet reached by the national grid. This study aims to design and test a small-scale PLTS system for lighting a farm house in Selayar Regency. The system consists of a 100 Wp solar panel, a PWM 10A charge controller, LiFePO4 batteries, and 30–40 W LED loads. The research method includes system design, assembly, and performance testing. The results show that the solar panel produced a voltage of 13.2–13.6 V, solar radiation intensity of 560–1235 W/m², and an average efficiency of 11.71%. The system meets daily energy needs of 1.260 Wh and provides lighting for 12 hours per night. This PLTS system proves effective as a clean energy solution for remote areas
CNC Plotter Core XY Tipe H-Bot Sebagai Alat Drawing Dengan Akurasi Tinggi M, Muas; Salam, Abdul; Fair, Ariel; Alim Tammah, Farhan; Zhulfiadi Rahman, Muh
Jurnal Teknik Mesin Sinergi Vol 24 No 1 (2026): April 2026
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v24i1.5764

Abstract

The rapid development of manufacturing and creative industries requires high-precision and efficient digital fabrication tools. One of the technologies widely used to support automated drawing and prototyping processes is the Computer Numerical Control (CNC) plotter. However, conventional CNC plotters often experience limitations related to motion stability, positioning accuracy, and repeatability due to the inertia of the gantry mechanism. This research aims to design and develop a CNC plotter based on the Core XY H-Bot mechanism to improve motion stability and drawing accuracy. The system was designed using a belt-driven Core XY H-Bot configuration with two NEMA 17 stepper motors controlled by an Arduino Uno and CNC Shield using modified GRBL firmware. The mechanical structure utilizes stainless steel shafts, GT2 timing belts, and 3D printed components. Experimental testing was conducted to evaluate system accuracy and repeatability by comparing programmed G-code commands with the actual movement of the drawing tool. The results show that the developed CNC plotter achieved an accuracy level of 99.04%, with a repeatability deviation of 0.219 mm and an optimal feed rate of 800 mm/min. These results indicate that the Core XY H-Bot mechanism provides stable motion and sufficient precision for drawing applications and educational purposes. The proposed system offers a cost-effective and efficient solution for developing high-precision CNC plotter systems.
Pengembangan Mobilitas dan Sensor pada Robot Pemetik Buah Stroberi Fahrun Maulana, Ahmad; Putri; Ka’ka, Simon; Paisal
Jurnal Teknik Mesin Sinergi Vol 24 No 1 (2026): April 2026
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v24i1.5771

Abstract

This research aims to develop the mobility and sensor systems of a strawberry-picking robot so that it can move stably in garden areas and harvest fruit without causing damage. The research method includes the design of the mechanical structure, assembly of an electronic system based on Raspberry Pi and Arduino Uno, and programming of strawberry ripeness detection using the You Only Look Once (YOLOv8) algorithm. The robot is designed with four wheels driven by DC motors, a manipulator equipped with a servo motor, and a distance sensor to maintain the position of the end-effector relative to the fruit. The test results show that the YOLOv8-based detection system is capable of identifying the ripeness level of strawberries with consistent accuracy. The manipulator can adjust its position relative to the fruit and perform automatic picking. The mobility system demonstrates stable movement on uneven terrain and is able to stop automatically when a ripe fruit is detected. The integration between the detection system, manipulator control, and drive system operates in real time, although there is still a slight delay due to the processing limitations of the Raspberry Pi 5. It can be concluded that the development of mobility and sensor systems in the strawberry-picking robot can improve the effectiveness of automated harvesting, minimize fruit damage, and support efficiency in agricultural production.
Rancang Bangun PLTS Sebagai Sumber Penggerak Prototype Kereta Listrik pada Sistem Pengangkutan Kelapa Sawit Al Rajib; Annur Fadil; Suryanto; A.M. Shiddiq Yunus
Jurnal Teknik Mesin Sinergi Vol 24 No 1 (2026): April 2026
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v24i1.5780

Abstract

Indonesia, as one of the world’s largest palm oil producers, requires an efficient and environmentally friendly transportation system for fresh fruit bunches (FFB). In many plantations, the transportation process is still carried out manually or using fossil-fuel-based vehicles, which increases operational costs and contributes to carbon emissions. This study aims to design and develop a solar power plant (PLTS)-based electric rail cart prototype for transporting palm oil fresh fruit bunches. The research method consisted of field surveys, system planning and design, prototype fabrication and assembly, and performance testing. The drive system utilizes a 48 V, 500 W DC motor connected through a chain, sprocket, and pulley–V belt transmission with a 1:9 gear ratio. Electrical energy is supplied by a 460 Wp solar photovoltaic system and stored in a 48 V, 120 Ah battery. Performance testing was conducted for five days to evaluate photovoltaic efficiency, DC motor efficiency, and overall system efficiency under different load conditions. The results showed that the maximum photovoltaic efficiency reached 16.23%, while the DC motor efficiency achieved 81.10% at a load of 400 kg. The maximum overall system efficiency was recorded at 68.24% at a load of 150 kg. Under a 400 kg load condition, the system was able to operate for approximately 3 hours until the battery capacity reached the minimum discharge limit of 20%. These results indicate that the implementation of a solar-powered electric rail cart has strong potential as an efficient and environmentally friendly transportation solution for palm oil plantations while supporting the utilization of renewable energy in the agricultural sector.

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