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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 32 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

Page 4 of 4 | Total Record : 32

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