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Elimensi Journal of Electrical Engineering
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Elimensi Journal of Electrical Engineering
Published by Cattleya Darmaya Fortuna
ISSN : -     EISSN : 29872928     DOI : https://doi.org/10.54209/elimensi.v3i03
Core Subject : Science, Engineering,
Automotive Engineering Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering
Articles published in cover key areas in electrical engineering such as : Electrical power and energy: Transmission and distribution, high voltage, electrical energy conversion, power electronics and drive. Telecomunication and Signal Processing: Antenna and wave propagation, network and systems, Modulation and signal processing, Radar and sonar, Radar imaging; Radio, multimedia content, Routing protocols, Wireless communications, Signal Processing, Image Processing, Voice Processing. Control automation and Robotic: Robotics, Automation, Pattern Recognition, Biosignal Engineering, Control Theory, Applied Control, System Design, Optimization, Process Control, Sensor, Machine Learning.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 36 Documents
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PEMODELAN DAN SIMULASI SUHU LINGKUNGAN DENGAN METODE ODE45 DI MATLAB Widiya Widiya; Putri Kurni Wati; Suci Wulandari; Muhammad Syahrul Wildan
Journal of Electrical Engineering Vol. 4 No. 01 (2026): Elimensi : Journal of Electrical Engineering
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/elimensi.v4i01.498

Abstract

Penelitian ini bertujuan untuk membuat model dan simulasi perubahan suhu lingkungan setiap hari dengan menggunakan pendekatan sistem dinamik berdasarkan persamaan diferensial tingkat pertama yang dipecahkan melalui metode ODE45. Data suhu luar diperoleh dari delapan titik yang diambil setiap tiga jam, yang menunjukkan pola umum harian, yaitu suhu yang relatif rendah di pagi hari (24–25°C), meningkat di siang hari (26– 29°C), stabil di sore hari (27°C), dan kembali menurun pada malam hari (sekitar 26°C). Data ini kemudian diinterpolasi secara linier untuk menghasilkan fungsi yang kontinu yang dapat digunakan sebagai input bagi model. Model sistem dinamik dikembangkan dengan mempertimbangkan koefisien perpindahan panas (k), sumber panas yang konstan (Q), serta suhu awal (T₀) untuk menggambarkan respons termal terhadap fluktuasi suhu luar. Penyelesaian numerik menggunakan ODE45 menghasilkan kurva suhu internal yang lebih halus, sambil tetap mengikuti pola suhu luar. Penggunaan MATLAB GUI membuat proses input data, visualisasi hasil, serta kategori suhu berdasarkan warna menjadi lebih mudah. Secara keseluruhan, studi ini berhasil menggabungkan pemodelan matematis, interpolasi numerik, penyelesaian ODE45, dan antarmuka GUI ke dalam satu sistem yang efisien untuk menjelaskan dinamika perubahan suhu lingkungan sehari-hari. Hasil dari pembahasan ini secara keseluruhan menunjukkan bahwa kombinasi interpolasi linier, penyelesaian numerik ODE45, dan antarmuka GUI MATLAB mampu menciptakan sebuah sistem pemodelan suhu yang menyeluruh, informatif, dan representatif terhadap dinamika perubahan suhu lingkungan.
Analisis Losses Inti/Kernel pada Cangkang Light Tenera Dry Separator (LTDS) No.1 Menggunakan Metode Statistical Process Control (SPC) pada PT. Socfindo Kebun Sei Liput Aceh Tamiang Ryan Pramanda; Alifya Ghina Syahra
Journal of Electrical Engineering Vol. 4 No. 01 (2026): Elimensi : Journal of Electrical Engineering
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/elimensi.v4i01.638

Abstract

This study aimed to analyze kernel losses in the shell fraction of Light Tenera Dry Separator (LTDS) No. 1 at PT Socfindo Sei Liput Estate using the Statistical Process Control (SPC) method. Data were collected through direct observation of the kernel and shell separation process and analyzed using control charts to evaluate process stability. The results showed that the blower inverter frequency ranged from 50.38 to 56.45 Hz, while kernel losses varied between 0.60% and 0.98%. These values remained below the company's maximum allowable limit of 1%, indicating that the separation process was under control. However, kernel losses were still affected by several factors, including improper blower frequency settings, uneven kernel cracking at the ripple mill, and unstable material flow during the separation process. Therefore, regular monitoring of operating parameters and routine maintenance of the LTDS are necessary to maintain optimal machine performance and minimize kernel losses, thereby improving the overall efficiency of the production process
Analyzed the Failure of the Operation of the Circulating Water Pump in Unit 2 PLTU Pangkalan Susu Power Plant Debby Keumala Sari; Hamdani; Rahmaniar
Journal of Electrical Engineering Vol. 4 No. 01 (2026): Elimensi : Journal of Electrical Engineering
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/elimensi.v4i01.637

Abstract

Electric power is used to support daily life, therefore electrical energy must be continues to grow given the growing need for this energy. So need to be preventive, corrective maintenance and optimization efforts generating units such as savings in the production process, one of which is with analyzed the failure of the operation of the Circulating Water Pump in Unit 2 PLTU Pangkalan Susu Power Plant. The formulation of the problem in this study is that the CWP 2A short circuit and the CWP 2A Vacuum Circuit Breaker failed trips, therefore it is necessary to analyze the CWP motor and the CWP 2A VCB Panel breaker, existing data, then a Failure Defense Task (FDT) recommendation is generated to prevent repeated failures.
Design of Rhodamine-B Detection System for Ketchup Based on Internet of Things (IoT) Using TCS3200 and K-NN Mohamad Jauharul Muhsin; Diah Arie Widhining Kusumastutie; Danang Erwanto
Journal of Electrical Engineering Vol. 4 No. 01 (2026): Elimensi : Journal of Electrical Engineering
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/elimensi.v4i01.651

Abstract

Rhodamin B is a synthetic dye that is prohibited from being used in food because it can harm health. This study aims to design a Rhodamin B detection system in tomato sauce based on the Internet of Things (IoT) using TCS3200 color sensors and the K-Nearest Neighbor (K-NN) method. The sensor TCS3200 used to read the RGB value of the sauce sample that had been reacted using the Rhodamin B Test Kit, then the data was processed using the K-NN method to determine the classification results. The detection results are displayed on the LCD and sent to the Firebase Realtime Database using the ESP32 so that they can be monitored in real-time. This study used a dataset consisting of 250 training samples (divided into five Level 0 to Level 4 classes with 50 samples per class) and used 10 sauce samples and tested 3 times in each with a total of 30 tests. Based on the results of testing on various K values, the following accuracy levels were produced: K=1 (86.67%), K=3 (93.33%), K=5 (96.67%), and K=7 (93.33%). The K=5 value provided the best performance by accurately classifying 29 out of 30 test samples, of which only one sample was misclassified. In addition, the quality of lighting also affects the results of sensor readings so that it affects the classification process. Thus, the system is able to detect Rhodamin B in tomato sauce well and can be used as a practical IoT-based detection alternative.
UI/UX Design of a Multimedia E-Learning Website to Increase the Learning Motivation of SMK Taman Siswa Binjai Students Arya Hadi Wiguna; Supiyandi; Solly Aryza
Journal of Electrical Engineering Vol. 4 No. 01 (2026): Elimensi : Journal of Electrical Engineering
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/elimensi.v4i1.674

Abstract

This research aims to design a user interface (UI) and user experience (UX) for a multimedia-based e-learning website in order to increase the learning motivation of students at SMK Taman Siswa Binjai. The method used in this research is Design Thinking, which covers five stages, namely Empathize, Define, Ideate, Prototype, and Test. Data was collected through direct observation, interviews with teachers and students, and a questionnaire distributed to 60 respondents. The UI/UX design prototype was developed using the Figma application and evaluated using a usability testing method with the System Usability Scale (SUS) instrument. The test results show that the designed interface obtained an average SUS score of 78.5, which falls into the Good category, and 85% of respondents stated that the e-learning interface display is easy to use and increases their interest in learning. This research concludes that the application of the Design Thinking method in designing the UI/UX of a multimedia e-learning website proved effective in creating an interactive, intuitive interface capable of increasing the learning motivation of students at SMK Taman Siswa Binjai.1 2
Design Of A Web-Based Cashier System To Improve The Ease Of Transactions At Prima Diski Photo Copy Dian Maulina Br Sitepu; Ruly Dwi Arista; Dr. Leni Marlina
Journal of Electrical Engineering Vol. 4 No. 01 (2026): Elimensi : Journal of Electrical Engineering
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/elimensi.v4i01.675

Abstract

Prima Diski Photocopy currently uses a manual transaction system, which increases the risk of recording errors and difficulties in generating sales reports. This study aims to design a web-based point-of-sale (POS) system to simplify transaction processes and improve operational efficiency. The developed system provides transaction features with cash, bank transfer, and QRIS payment methods, automatic receipt printing, and sales reporting. The results show that the web-based POS system accelerates transaction processing, reduces recording errors, and facilitates sales data management. Therefore, this system can support the operations of Prima Diski Photocopy in a more effective and well-organized manner.

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