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All Journal International Journal of Electrical and Computer Engineering ELKHA : Jurnal Teknik Elektro Bulletin of Electrical Engineering and Informatics Rekayasa Mesin RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System Jurnal Pro Hukum : Jurnal Penelitian Bidang Hukum Universitas Gresik MEANS (Media Informasi Analisa dan Sistem) Jurnal Abdimas Ilmiah Citra Bakti (JAICB) Jurnal Sosial dan Teknologi Mejuajua Journal of Renewable Energy, Electrical, and Computer Engineering Jurnal Al Ulum: LPPM Universitas Al Washliyah Medan IRA Jurnal Pengabdian Kepada Masyarakat Blantika : Multidisciplinary Journal Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) The International Journal of Medical Science and Health Research Jurnal Polimesin Impression : Jurnal Teknologi dan Informasi
Irwanto, Muhammad
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Implementasi Kerja Sama Universitas Al-Azhar dan UniMAP dalam Pengabdian Masyarakat melalui Diskusi Perluasan Hutan Mangrove Nurdiana, Nurdiana; Siregar, Zufri Hasrudy; Nugraha, Yoga Tri; Suherman, Suherman; Nasution, Adinda Juwita; Rida, Rizkha; Irwanto, Muhammad; Bin Jusoh, Muzammil
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 3 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v3i3.257

Abstract

Partnerships between universities and partner institutions are strategic for study program accreditation and for implementing the Tri Dharma of Higher Education. In 2025, Al-Azhar University established an international collaboration with Universiti Malaysia Perlis (UniMAP) and the Village Forest Management Institution (LPHD) of Pasar Rawa, Langkat Regency, in the field of community service. The activities included a networking session, strategic discussions on converting palm oil plantations back into mangrove forests, and a joint mangrove planting action. This initiative aims to restore coastal ecosystems as habitats for marine life, such as fish, crabs, and shrimp. Through this synergy, it is expected that the motivation of the Pasar Rawa Village community, particularly the LPHD, will increase in managing and preserving the mangrove area sustainably for the welfare of the coastal ecosystem.
Design and implementation of a state feedback controller for enhanced speed stability of permanent magnet DC motors under load variations Syukri, Mahdi; Lubis, Rakhmad Syafutra; Melinda, Melinda; Syukur, Muhammad Hakkan; Hasanuddin, Iskandar; Irwanto, Muhammad
Jurnal Polimesin Vol 24, No 2 (2026): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i2.8379

Abstract

This study presents the design and simulation of a State Feedback Controller (SFC) for speed regulation of a Permanent-Magnet DC (PMDC) motor using a state-space modeling approach. The objective is to achieve stable and accurate speed control under dynamic load disturbances that typically degrade the performance of conventional open-loop systems. The Direct Current (DC) motor is modeled in state-space form, with armature current and angular speed selected as the main system states. Controller gains are designed using the pole placement method to ensure fast response and improved stability. The proposed SFC is evaluated through MATLAB®/Simulink® simulations by examining motor speed, armature current, and input voltage responses under step-load variations. Simulation results show that the SFC maintains the motor speed at the reference value of 3,430 rpm even during sudden load increases, whereas the uncontrolled motor experiences significant speed drops and oscillations. Performance analysis confirms notable improvements in transient response. The rise time is reduced from 1.1864 s to 0.4220 s, and the settling time decreases from 2.1132 s to 0.7517 s, indicating faster and more stable system behavior. In addition, smoother current transitions and more efficient voltage regulation are achieved compared to the open-loop configuration. Overall, the results demonstrate that state-space control using pole placement provides a robust and responsive alternative to conventional PID controllers for DC motor speed control under load disturbances. Future work will focus on experimental validation and the exploration of advanced control strategies such as Linear Quadratic Regulation and adaptive control.
Validation of Experimental Study and SimulationOTEC Power Plant using Shell-Tube Heat Exchanger Materials with Copper, Tin, and Working Fluid Ammonia Mawardi, Mawardi; Siregar, Zufri Hasrudy; Nugraha, Yoga Tri; Rida, Rizkha; Fahri , Tengku Muhammad; Irwanto, Muhammad
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.v17i1.2049

Abstract

The results of experimental research on marine thermal power plants using a shell and tube heat exchanger made of copper-tin (Cu-Sn) alloy are the main focus of this study. This study uses a heat exchanger Scale Model measuring 60 mm wide x 1 meter long. The system operated using a closed cycle and Organic Rankin cycle. A simulation study has been carried out using Ansys CFD software to model new heat exchangers, namely models A and B. The interaction between ammonia and hot water produces thermodynamic values in the form of an evaporator outlet temperature of 28°C in models A and B 260C. The weakness of model B is that the turbulent flow is divided into left and right sides so that heat loss occurs in the flow corner area. The seawater inlet temperature of 29°C can heat the working fluid from the ammonia flow inlet from 5°C to 28°C, resulting in saturated steam reaching 5-6 bar.
Co-Authors Adam Pangestu Adinda Juwita Nasution angin, Despaleri Perangin- Ar Rasyid, Arya Bago, Sri Intan Baharudin, Nor Hanisah Balatif, Muhammad Iqbal Bin Jusoh, Muzammil Dina Maizana Erniati Panjaitan, Christin Evalina, Noorly Fahmi, Muhammad Ikhwan Fahri , Tengku Muhammad Ginting, R T Habib Satria Hasanuddin, Iskandar Hermansyah Indra Roza Indri Dayana Ismail, Baharuddin Istiningtyas, Kartika Juliangga, Reza Jusoh, Muzzammil karo, Muhammad Azlin Karo- Karo-Karo, Muhamad Azlin Khoirunnida Laia, Yulianus Lubis, Rakhmad Syafutra Maha, Deny Hasminta Sembiring Mahdi Syukri Mawardi Md Arshad, Syahrun Nizam Melinda Melinda Moranain Mungkin Muhammad Fadlan Siregar Nainggolan, Winner Parluhutan Nisja, Indra Nurdiana Nurdiana Othman, M.A. Othman, Mohd Azlishah Othman, Mohd. Azlishah Panangian Mahadi Sihombing Panjaitan, Christin Erniati Pasaribu, Faisal Irsan Perangin-angin, Despaleri Ramadhan, Fakhri Rida, Rizkha Sari Novalianda Sembiring Maha, Denny Hasminta Simanjuntak, Puan Maharani Siregar, Zufri Hasrudy Suherman, Suherman Sumita Wardani Syukur, Muhammad Hakkan Timoteus Gultom, Togar Togar Timoteus Gultom Winda Sari, Vina Yoga Tri Nugraha Zakaria, Zulkarnay Zebua, Tenuman