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ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika
Published by Institut Teknologi Nasional Bandung
ISSN : 23388323     EISSN : 24599638     DOI : -
Core Subject : Engineering,
Electrical & Electronics Engineering Engineering
Jurnal ELKOMIKA diterbitkan 3 (tiga) kali dalam satu tahun pada bulan Januari, Mei dan September. Jurnal ini berisi tulisan yang diangkat dari hasil penelitian dan kajian analisis di bidang ilmu pengetahuan dan teknologi, khususnya pada Teknik Energi Elektrik, Teknik Telekomunikasi, dan Teknik Elektronika.
Arjuna Subject : -
Articles 826 Documents
 79   80   81   82   83 
Design and Development of IoT-Enabled Portable Device for Multiparameter Air Quality Monitoring ADINARA, DERBY BRYLIAN; RACHMAWARDANI, AGUSTINA; WASTUMIRAD, ADI WIDIATMOKO; RUSANTO, BENYAMIN HERYANTO; PRASETYO, DWI INDRA; KURNIAWAN, HANIF; HANI, ABDUL MANAF
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 13, No 4: Published November 2025
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v13i4.339

Abstract

The limitations of Indonesia's air quality monitoring infrastructure have prompted research to develop portable Internet of Things (IoT)-based monitoring devices. The system is designed using ESP32 and Arduino Uno integrated with MQ136 (SO2), MQ131 (NO2), MiCS-5524 (CO), TGS-2611 (CH4), Gravity-0460 (PM), and Gravity-0321 (O3) sensors. Data is converted into AQI values and displayed via LCD, Telegram, and website. The device is equipped with an early warning system that includes a buzzer, a website pop-up, and Telegram messages. Field testing results over 24 hours at POS KU Cibeureum recorded peak concentrations of PM2.5 (19 μg/m³), PM10 (58 μg/m³), NO₂ (1.375 ppb), CO (238 ppb), SO₂ (0.74 ppb), and O₃ (45 ppb). The device can be operated portably with the following dimensions: enclosure I, 20×20 cm; enclosure II, 7×12 cm; control panel box, 30×40 cm (pre-assembled) and 100×180 cm (post-assembled). The device has proven effective as an adaptive monitoring solution for residential areas surrounding industrial zones.
Hybrid Particle Swarm Optimization–Simulated Annealing OPF for Lombok Generation Cost Reduction HARJIAN, MUHAMMAD RIVALDI; MULJONO, AGUNG BUDI; TAWAQQAL, AKBAR; PUTRA, RAJA RESKI EKA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 13, No 4: Published November 2025
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v13i4.409

Abstract

This study proposes the application of Optimal Power Flow (OPF) in the Lombok Electricity System consisting of 19 buses and 7 generating units, with the main objective of reducing production costs under peak load conditions. The method used is a hybrid optimization method that combines two methods, namely the Particle Swarm Optimization and Simulated Annealing algorithms. Particle Swarm Optimization and Simulated Annealing (PSO–SA) method. Combining PSO and SA algorithms can improve the weaknesses of PSO with its jumping feature. In other words, the use of the PSO-SA algorithm is more effective than the PSO method. The simulation results show a generation cost of USD 31,158. The total generated power is 193,736 MW, which is equivalent to a total load of 193.34 MW. In addition, the voltage profile of all buses is at 0.95–1.05 pu and the power flow of all lines is below the thermal capacity. This finding confirms that the use of the PSO–SA algorithm effectively reduces operating costs without violating the system's operating constraints.
Development of Non-Conventional Energy Systems as a Source of Electric Power for Alternators HARAHAP, PARTAONAN; RIMBAWATI, RIMBAWATI; CHOLISH, CHOLISH; ABDULLAH, ABDULLAH; SETIAWAN, JOKO ARIF
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 13, No 4: Published November 2025
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v13i4.354

Abstract

This Development of a Non-Conventional Energy System as a Power Source for an Alternator aims to design an efficient and self-sustaining power generation system. The study focuses on the drive mechanism, rotor speed synchronization, and excitation current analysis to achieve optimal electrical output. Experimental results indicate peak performance at 4000 RPM with an induced voltage of 1539 V (star configuration) and a rectified DC output of 14 V. An excitation current of 7 A produced an electromagnetic torque of 2.44 Nm, ensuring stable operation. The developed system demonstrates efficiency, stability, and potential for future energy-independent vehicle applications.
Enhancing Hazy Image Quality with a Modular CNN Encoder–Decoder KHOLIQ, ANDIKA MUHAMMAD NUR; SATYAWAN, ARIEF SURYADI; HAQIQI, MOKH MIRZA ETNISA; AKBAR, FAJAR RAHMAT; NURROHMAH, IASYA FAIQOH; ADAWIYAH, AULIA; WULANDARI, ESTI FITRIA; SUGIAN, RENDI TRI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 14, No 1: Published January 2026
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v14i1.69

Abstract

This study develops a modular CNN encoder–decoder framework for single-image dehazing by replacing the conventional bottleneck with interchangeable token-mixing modules such as FNet, Spatial-FNet, MLP-Mixer, and gMLP-style designs. The pipeline integrates adaptive preprocessing (CLAHE and histogram matching), photometric augmentations, and training on a controlled subset of the SOTS dataset. Comprehensive quantitative and qualitative evaluations demonstrate substantial improvements over a baseline CNN, with mean PSNR increasing from approximately 18.4 dB to the 23.0–24.0 dB range and SSIM rising from about 0.75 to roughly 0.89–0.91. However, several variants require careful hyperparameter selection and loss-weight tuning to achieve stable performance. The results offer practical guidance for deployment in real-world vision systems.
Fuzzy Logic Based LoRa and IoT Smart Buoy for Sea Wave Monitoring in Madura SAPUTRO, ADI KURNIAWAN; ALFITA, RIZA; ZUHUDI, MOHAMAD AHSAN; HARDIWANSYAH, MUTTAQIN; LAKSONO, DENI TRI; PURNAMASARI, DIAN NEIPA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 14, No 1: Published January 2026
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v14i1.26

Abstract

Indonesia is an archipelagic country with most of its territory consisting of water, increasing the risk of water-related natural disasters. Seawater waves, influenced by tidal movements, are one such phenomenon, and wind speed significantly affects their height. Faster sea winds can generate higher seawater waves. To obtain related data, a system capable of detecting seawater wave height and wind speed is required. This study aims to test a LoRa (Long Range)-based seawater wave detection system that is both efficient and reliable. The system uses a BNO055 sensor to measure wave height and an anemometer to detect wind speed. The relationship between wind speed and seawater wave height is analyzed using the fuzzy Mamdani method. Results show the BNO055 sensor has 92% accuracy, the anemometer 98.4%, and the fuzzy Mamdani method yields an error rate of only 0.25%. This system is expected to enhance marine monitoring and safety efforts.
Comparative Study of 10 Wp Solar Panel Performance with Mirror Reflectors at Various Angles HARAHAP, BASYARUDDIN ISMAIL; REFLY, SEPTIA; BONARDO, DOLI; BAVITRA, BAVITRA; WANATIRTA, BIMBI ADYTIA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 14, No 1: Published January 2026
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v14i1.84

Abstract

Improving solar panel performance is challenging due to increasing of solar radiation. This study investigates the effect of variations in the angle of the flat mirror reflector on the surface temperature and electrical performance of a 10 Wp monocrystalline solar panel using an ESP32-based data acquisition system with INA219 and DS18B20 sensors. Reflector angles of 45°, 60°, and 75° were tested from 08:00 to 16:00 WIB. The results indicate that the 45° reflector produced the lowest temperature (≈60 °C), the highest average voltage (19.7–20.0 V), maximum current of 120 mA, and peak power of 2.6 W. In contrast, the 75° angle increased the temperature to 72 °C and reduced the electrical output. The study concludes that a 45° reflector angle is optimal for low-power solar panels in hot tropical environments.
Impact Analysis of Transformer Extension and Network Maneuvering Strategy on Tulungagung Substations PAMUNGKAS, RIVALDO SETYA; NUGRAHA, CANDRA FEBRI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 14, No 1: Published January 2026
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v14i1.1

Abstract

Increasing electricity demand in Tulungagung has caused transformers at Substation 1 and 2 to reach critical loading. To address this, PT PLN (Persero) UP3 Kediri added a 60 MVA transformer at the New Tulungagung Substation with load redistribution. This study analyzes the impact of the new transformer on transformer loading, power losses, and voltage profile, and identifies the most efficient network maneuver scheme during maintenance. Simulationsusing DIgSILENT PowerFactory were based on Tulungagung distribution data. results show reduced loading to 62.8% and 70.5%, improved minimum voltage from 0.91 p.u. to 0.93 p.u., and loss reduction from 2.84 MW to 2.71 MW (4.6%). Among three maneuver schemes, the third achieved the best performance with 0.94 p.u. minimum voltage and 3.90 MW losses. The new transformer significantly enhances system efficiency and reliability.
Experimental Comparison of DALI and 0–10V LED Dimming Systems for Smart Lighting NURYANA, MUHAMMAD RISQI; SIREGAR, MARSUL; BACHRI, KAREL OCTAVIANUS
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 14, No 1: Published January 2026
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v14i1.42

Abstract

This study compares the dimming performance of DALI and 0–10 V using three commercial LED drivers at eight dimming levels. The testing included power consumption, illuminance, and flicker stability. The results showed that DALI was able to maintain a linear dimming curve down to low levels such as 10%, 5%, and 1%, with consistent flicker within the No Risk zone. Power consumption at 0% was also low, making it suitable for applications requiring deep dimming and stable visual comfort. Conversely, the 0–10 V system performed quite well at high levels and was slightly more efficient at low power, but its performance dropped drastically below 30%. At 10%, the illuminance was almost zero and the flicker level entered the High Risk zone. Overall, DALI is more ideal for smart lighting with smooth transitions, while 0–10 V is more suitable for basic installations.
IoT-Based Kitchen Monitoring System with ESP32 and Firebase Realtime RAHAYU, FAJAR; OCTA, ANDHIKA; HARDIYANTO, HERI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 14, No 1: Published January 2026
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v14i1.96

Abstract

LPG gas leaks and unmonitored kitchen environmental conditions can trigger fires and endanger health. This study developed an Internet of Things (IoT)-based kitchen monitoring system to detect Liquefied Petroleum Gas (LPG) leaks and environmental conditions in real-time. The system uses an MQ-2 sensor as an LPG gas detector, a DHT11 sensor for temperature and humidity, an MQ-135 for air quality, and an LDR for light intensity integrated with an ESP32 microcontroller and the Firebase Realtime Database. Sensor data is sent in real-time via a Wi-Fi network and displayed on an Android application with warning notifications. Performance evaluation was carried out by measuring the delay in data transmission from the sensor to the application in household kitchen conditions. Test results showed an average delay in the range of 0.24–0.36 seconds, which still meets the needs of an early warning system. This system is considered effective in improving the safety of LPG-based kitchens through real-time monitoring and fast notifications.
Subject Index and Author Index -, - INDEX
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 13, No 1: Published January 2025
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v13i1.%p

Abstract

Subject Index and Author Index

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