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All Journal Rekayasa Mesin JTERA (Jurnal Teknologi Rekayasa) Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin International Journal of Mechanical Engineering Technologies and Applications (MECHTA) JURNAL TEKNIK INDUSTRI Journal of Applied Science and Advanced Engineering Almikanika
Anton Royanto Ahmad
Universitas Ibn Khaldun Bogor
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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PENGAPLIKASIAN ACCELEROMETER SEBAGAI FEEDBACK PADA ARM ROBOT 5 DOF (DEGREE OF FREEDOM) Sutisna, Setya Permana; Maulana, Erwin; Ahmad, Anton Royanto
ALMIKANIKA Vol 1 No 1 (2019): Januari
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v1i1.2005

Abstract

The automatic control system also able to implement using arm robot concept. In this research, 5 DOF (Degree of Freedom) arm robot control system using the close – loop control methode with the MPU 6050 Sensor which integrates the rotation of MG995 motor servo as feedback.Control of this robot using android – based aplication, the app send data of rotate angle for each servo motor which will rotate to a certain angle, afterward the data received by HC – 05 Bluetooth and the arduino UNO R3 process its data. Arduino UNO R3 microcontroller can control every rotation of each servo motor that integrated with an MPU6050 sensor with serial monitor communication to display the rotation of each servo motor. The test results obtained by the standard deviation value shows how large the sample diversity is. The result of this research show standard deviation correlation with the number of sample diversity. The higher standard deviation value will indicate more sample data spread (data diverse or varies), otherwise smaller standard deviation value will indicate homogenous sample data, and if standard deviation equals to zero it indicates sample has identical data. The highest standard deviation value from servo motor 1 is 5.20, servo motor 2 and 3 are 1.00, servo motor 4 is 2.89, and servo motor 5 is 2.9.
RANCANG BANGUN 4 DOF (DEGREE OF FREEDOM) UNDERWATER REMOTELY OPERATED VEHICLE (ROV) Rachmansyah, Yoki; Rahmat, Mamat; Ahmad, Anton Royanto; Nuraini, Aisyah Iadha
ALMIKANIKA Vol 1 No 1 (2019): Januari
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v1i1.2008

Abstract

In this research, the underwater robot designed is a type of mini Remotely Operated Vehicle (ROV) based on the Arduino Uno Atmega 328A microcontroller. This research was aimed to make a robot underwater or ROV and test its performance in water. This research was conducted to determine the system of tightness in the ROV by using a body that was used as a cover for each component in the ROV and tested its movement in the water. The design of mini ROVs is integrated in several design processes, namely planning the calculation of each component selection used by ROV, designing mechanical construction, designing electronic construction, and making integration of the entire design process. The results of this integration are in the form of a physical form of mini ROV, electronic systems, and graphical interface programs. The designed robot is an underwater robot that can move in water with the X, Y and Z axes. The ROV robot is made with a total dimension of 38 cm in length, 21 cm in width, and 22 cm in height. The body of the ROV is made using a base material from a PVC pipe that each gap is lined with a seal so that the ROV can be maintained properly. In the ROV movement system, use 2 propeller leaves to go forward and backward and 2 propeller leaves to drown or raise the ROV.
ANALISIS EKSERGI PADA TURBIN PLTP LAHENDONG SISTEM ORGANIC RANKINE CYCLE (ORC) KAPASITAS 500 KW Aji, Muhammad Idham Bayu; Gaos, Yogi Sirodz; Ahmad, Anton Royanto
ALMIKANIKA Vol 1 No 3 (2019): Juli
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v1i3.2351

Abstract

Seperti layaknya dua sisi koin, letak Indonesia yang berada di ring of fire memiliki keuntungan dan kerugian. Bencana seperti gempa bumi, gunung Meletus, erupsi, dan tsunami merupakan sisi gelap yang harus dihadapi rakyat Indonesia. Namun potensi energi yang tersimpan jauh lebih berharga untuk bisa digunakan oleh manusia. Panas bumi adalah salah satu sumber energi yang Indonesia miliki namun masih minim utilitasnya. Karakter dari sistem Organic Rankine Cycle (ORC) sangat cocok untuk lahan PLTP di Lahendong, Sulawesi. Maka dari itu dibutuhkan analisa eksergi agar setiap energi yang keluar dapat diketahui dan memperkecil losses atau energi yang terbuang terutama pada komponen turbin. Hasil analisa dengan pengambilan data secara acak pada bulan April - Juli 2018 pada turbin didapat hasil efisiensi eksergi paling rendah sebesar 56.24% pada suhu inlet 117oC dan suhu lingkungan 22oC. Sedangkan efisiensi paling besar 69.92% berada pada suhu inlet 133oC dan suhu lingkungan 33oC. Losses terbesar yaitu 175.83 kW, dan yang terkecil yaitu 130.78 kW. Dengan rata-rata efisiensi eksergi sebesar 64.29% dan losses yaitu sebesar 151.47 kW.
THERMODYNAMIC ANALYSIS OF ALKALINE ELECTROLYSIS UNDER VISIBLE LIGHT ILLUMINATION: COMPARATIVE ASSESSMENT OF GREEN AND BLUE LED EXPOSURE Santoso, Mardi; Ahmad, Anton Royanto; Sinurat, David Fernando; Hamidi, Nurkholis; Purnami
Jurnal Rekayasa Mesin Vol. 16 No. 3 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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

Abstract

This study explores the thermodynamic behavior of alkaline electrolysis under visible light illumination, focusing on the effects of green and blue wavelengths in the absence of chemical additives. Through a series of controlled experiments, temperature evolution, energy input, and thermal efficiency were analyzed over a 20-minute electrolysis period. Results show that both green and blue light enhance the system's thermal response compared to dark (control) conditions, with blue light achieving the highest temperature rise and energy conversion efficiency. Arrhenius analysis revealed a clear temperature dependence of the rate constant, and strong correlations were observed between temperature rise (ΔT), heat energy (Q), and system efficiency. These findings suggest that visible light particularly blue light can significantly improve the thermal dynamics of electrolysis systems, paving the way for low-cost, passive solar-assisted hydrogen production.
Biosurfactant-Assisted Hydrogen Evolution: Effects of Sapindus Rarak Extract on Alkaline Electrolysis Performance Santoso, Mardi; Sinurat, David Fernando; Ahmad, Anton Royanto; Hamidi, Nurkholis; Purnami, Purnami
Jurnal Rekayasa Mesin Vol. 17 No. 1 (2026)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v17i1.2151

Abstract

Hydrogen production through alkaline water electrolysis is a promising pathway for clean energy generation, yet its efficiency is often limited by gas bubble accumulation on electrode surfaces. This study explores the use of a natural surfactant derived from Sapindus rarak (lerak) as a green additive to improve hydrogen evolution reaction (HER) performance. Experimental results show that the natural surfactant-enhanced system achieved a 135% increase in cumulative hydrogen yield over 10 minutes. Mechanistically, the natural surfactant lowered the surface tension, reduced bubble nucleation size, and promoted faster detachment from the electrode surface, thereby preserving catalytic activity. Compared to synthetic surfactants like sodium lauryl sulfate, Sapindus rarak offers advantages in natural degradability, environmental safety, and regional availability. This study demonstrates that natural plant-based surfactants can serve as effective, eco-friendly enhancers in electrochemical hydrogen production. The results provide a foundation for integrating natural surfactants into scalable and sustainable green hydrogen systems.
THE ROLE OF VISIBLE LIGHT IN OPTIMIZING HYDROGEN YIELD DURING ALKALINE ELECTROLYSIS Santoso, Mardi; Ahmad, Anton Royanto; Purnami, Purnami; Hamidi, Nurkholis
International Journal of Mechanical Engineering Technologies and Applications Vol. 7 No. 1 (2026): January - June
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2026.007.01.13

Abstract

Hydrogen is a clean energy carrier, but the efficiency of its production via alkaline water electrolysis remains a key challenge due to high energy consumption and limited reaction kinetics. This study explores the potential of visible light irradiation—specifically red, green, and blue LEDs—to enhance hydrogen production efficiency under standard electrolysis conditions. Using NiFe electrodes in 30% KOH solution, experiments were conducted at 9 V and 1.5 A for 10 minutes, with each LED source (700 lumens) positioned 50 mm above the electrolyte. Hydrogen yield was recorded via a water displacement method, and temperature changes were monitored to assess photothermal effects. Results showed a significant improvement in hydrogen production under light exposure, with blue light yielding the highest output (17.85 mL), followed by green (13.15 mL), red (10.65 mL), and the non-irradiated control (8.15 mL). These enhancements are attributed to the synergistic effects of photon energy and thermal stimulation, which improve electrochemical kinetics. This study provides evidence that visible light can be an effective, low-cost method to boost hydrogen evolution performance in alkaline electrolysis systems.
Co-Authors Aji, Muhammad Idham Bayu Aris Budiyanto Fahrulrizal Fahrulrizal Fahrulrizal, Fahrulrizal Felix Siswanto Lie Heinrich Putra Kurniansyah, Kurniansyah Mamat Rahmat Mardi Santoso Maulana, Erwin Mu’alif, Fazar Nuraini, Aisyah Iadha Nurkholis Hamidi Prakasa, Anggit Pramono, Gatot Eka Pramono, Gatot Eka Purnami Purnami Purnami Rachmansyah, Yoki Roy Waluyo S. Awibowo Saputro, Ilham Aji Setijo Awibowo Setya Permana Sutisna Sinurat, David Fernando Slamet Widodo Tika Hafzara Siregar Waldiansyah, Rian Yogi Sirodz Gaos, Yogi Sirodz