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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 8 Documents
 1 
Search results for , issue "Vol 13, No 4: Published November 2025" : 8 Documents clear
Smart Low Head Picohydro System with QHBM Optimization for Rural Electrification and Innovation ARIPRIHARTA, ARIPRIHARTA; HADI, MOKH. SHLIHUL; MUFTI, NANDANG; MAHARANI, SATIA NUR; BAGASKORO, MUHAMMAD CAHYO; ANANTA, SASMITA BAGUS SANG KESUMA; RESWANA, PRIA 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.v13i4.425

Abstract

This study develops a low-head smart picohydro system for rural electrification optimized using the Queen Honey Bee Migration (QHBM) algorithm. The system includes a propeller turbine, axial generator, charge controller, inverter, and battery. QHBM optimizes flow rate, head, system efficiency, output power, and energy cost to achieve the best technical and economic performance. For comparison, Particle Swarm Optimization (PSO) is used, known for its fast convergence but prone to local optima. Results show that at a 0.65 m head, QHBM produces 546.68 W, higher than PSO (546.48 W) and manual calculation (530 W), with 50% faster convergence. The proposed system supports sustainable and affordable energy access for off-grid communities and offers potential for renewable energy startup innovation.
Enhanced Angular Resolution in OEST Radar Using Hybrid APES-MUSIC Algorithm RAMDANSYAH, RANDI; TAHCFULLOH, SYAHFRIZAL; RISKY, DWI; SAFARIA, NUR; PUTRA, ILHAM TIARA
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.v13i4.369

Abstract

Limited angular resolution in Overlapped Equal Subarray Transmit (OEST) radar poses a critical challenge in detecting closely spaced targets, especially in complex multi-target environments. This paper evaluates super-resolution MUSIC and APES methods to enhance angular resolution in OEST radar systems with 6 subarrays. Performance analysis was conducted under single and multiple target scenarios: one target at 0.5°, two targets at [0°, 0.5°], and three targets at [–0.5°, 0°, 0.5°]. Both methods achieved accurate angle detection for single and dual-target cases. However, in triple-target scenarios, APES demonstrated superior DoA and RCS estimation precision (up to 0.999) despite higher sidelobes, whereas MUSIC showed reduced RCS accuracy but lower sidelobes. The hybrid APES-MUSIC approach produced sharp spectral peaks, near-unity amplitude response, and minimized sidelobe interference, significantly improving estimation accuracy and stability for this radar in dense multi-target settings.
Design and Perfomance Analysis of Solar Thermoelectric Generator (STEG) for Heat Utilizing under Varying Temperature Condition HIDAYATULLAH, MUHAMMAD REFQI; AFANDI, ARIF NUR
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.v13i4.447

Abstract

Utilizing solar heat from building rooftops is crucial for urban heat island mitigation and energy efficiency in tropical climates. This study designs a Solar Thermoelectric Generator (STEG) panel and analyzes its performance in converting zinc waste heat into electricity under varying temperature conditions. An integrated experimental and ANSYS simulation approach evaluated zinc's thermal conductivity and STEG panel performance. Actual temperature data from the zinc material were collected to identify optimal temperature gradients (ΔT). Results showed the zinc panel achieved a maximum ΔT of 5.82∘C. A series configuration yielded 0.0825 mW peak power, while parallel reached 0.0085 W. System efficiency was calculated at 0.0090%. Despite initial low efficiency, these findings validate STEG panel design and zinc material feasibility for solar heat recovery.
Design and Construction of Low-Cost Seismometer using Geophone Sensor Based on Single Board Computer FAUZAN, RAIHAN AHMAD; RUSANTO, BENYAMIN HERYANTO; SINAMBELA, MARZUKI; TRIHADI, EDWARD
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.v13i4.381

Abstract

Salah satu faktor utama dalam upaya peningkatan sistem pemantauan seismik adalah penyebaran dan interkoneksi jaringan seismograf secara menyeluruh. Penggunaan geophone dapat menjadi solusi alternatif yang potensial dalam membuat low-cost seismograf untuk meningkatkan cakupan dan efisiensi jaringan pemantauan seismik. Penelitian ini bertujuan untuk merancang low-cost seismometer yang terdiri dari sensor geophone, rangkaian signal conditioning, modul ADC ADS1256, GPS Ublox Neo-7M, dan Raspberry Pi 3 Model B+. Data ditampilkan melalui antarmuka berbasis website secara realtime menggunakan protokol komunikasi MQTT dan disimpan dalam format miniSEED. Hasil pengujian menunjukkan tingkat background noise pada sensor yang cukup baik (84.8% titik frekuensi berada dalam batasan NHNM/NLNM), dengan kemampuan mendeteksi gempa lokal pada magnitude ≥3.0. Prototipe ini memberikan solusi low-cost seismograf yang efektif untuk pemantauan seismik.
Gain Enchancement of Microstrip Leaky-Wave 1x3 Antenna with V-Slot IQBAL, MUHAMAD WAHYU; OKTAVIANI, VINA; MARUDDANI, BASO
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.v13i4.395

Abstract

This study aims to improve the performance of a microstrip leaky-wave antenna by adding a 1x3 array configuration and a V-slot structure for WLAN applications in the 5.925 − 6.425 GHz, using an FR-4 substrate with a dielectric constant of 4.6. Simulations were conducted to evaluate the parameters of S11, VSWR, bandwidth, and gain. The use of an array and V-slot aims to enhance both gain and bandwidth. Simulation results show the array and V-slot configuration achieved a bandwidth of 570 MHz (5.86 − 6.43 GHz) and gain of 7.02 dBi at 6 GHz. Compared to the microstrip leaky-wave antenna without a V-slot, the proposed configuration improved the bandwidth by 270 MHz (90%) and the gain by 0.82 dBi (13.3%). These results indicate that the addition of an array and V-slot structure effectively enhances antenna performance for wireless communication applications.
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.

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