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About the Journal
Electrical Engineering and Energy (ELENE) is an international, peer-reviewed journal publishing research in electrical engineering, electronics, and energy systems.
Open Access · No Submission or Publication Fees · Double-Blind Peer Review
View full aims & scope
Announcements
Transition to Continuous Publication Model
2026-08-07
Section Editor Recruitment
2026-07-31
Current Issue
Vol. 5 No. 2 (2026): August 31
This issue brings together recent, application-oriented studies focusing on energy efficiency, power electronics, and renewable energy systems. The contributions span a broad spectrum, from evaluating optimum passive design strategies for educational buildings in Turkey to comparing the conducted noise emissions of SMD and through-hole components.
Published:
2026-05-06
Full Issue
Research Articles
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Selecting and Estimating Optimum Passive Designs of Energy Efficiency in Educational Buildings in Turkey
- 671Views 342PDF access
AbstractThe consumption of energy in building sector consists about 40% of energy consumptions by words. In this investigation we analysis using the passive design in educational buildings by selecting the Technology faculty building in Selçuk university at Konya city as example of Tik-tip project .To estimate the optimum case of passive designs, firstly proposal two new educational building envelopment ( cubic building with 1:1 aspect ratio and cylindrical building) at same floor area of original existing envelopment at same façades design and more compact by less outdoor walls and then analysis to use eight passive designs (orientation , double façades, window wall ratios, court yards, green-lands and environment’s area, shading device, set temperature and building tightness) in each new envelopments by simulations each ones using Autodesk Revit 2020 and analysis optically same designs by Ecotect 2011 based on actually yearly weather data selecting it in NASA weather data web site .At the result of analysis the proposed the new envelopment’s we have more energy efficient at each one about %16.7 decreasing in cooling load and %20.76 saving of heating load in cubic building with % 19.9 saving in cylindrical envelopment and then have saving in total yearly air-conditioning load about % 19.3 and % 18.75 in cubic and cylindrical envelopment respectively. A last when used the other passive designs in optimum case we have total energy saving in air conditioning load about %33.36 in cubic envelopment and %30.9 in cylindrical envelopment when compared it with existing building envelopment of technology faculty in Selçuk University.
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A Comparison of SMD and Through-Hole Components on Conducted Noise Emission
- 300Views 220PDF access
AbstractSwitched-mode DC-DC converter circuits create quite challenging electromagnetic compatibility problems. Additionally, the design preferences directly affect the EMC performance of the circuits. The study focuses on the conducted noise emissions of the same Boost converter circuits constructed with two different types of assembly technologies, Through-Hole and SMD. For this purpose, two Boost converter circuits using the same integrated circuit, LT1070, were designed by using Through-hole and SMD assembly technologies. The conducted emission measurements were taken according to Class B of EN 55032 standard requiring measuring the noise emission in the frequency range between 150 KHz and 30 MHz. The results obtained from measurements show that the emission amplitude at 160 kHz for Boost converter constructed with Through-Hole components is higher than the standard requirement while the converter constructed with SMD components meets the standard at the same frequency. The conducted emission amplitudes of both Boost converter at 200 KHz and 240 KHz cannot meet the requirements of the standard, but the peak values for SMD-based circuit are higher than the emission amplitudes of Boost converter constructed with Through-Hole components at the same frequencies. Because of failing both circuits on the tests of En 55032 standard, a low-pass π type filter was designed. After adding the π filter to the Boost converter circuits, the conducted emission values have met the standard requirements in all frequency range. The efficiency of the designed filter completely suppresses the noise all frequency range of EN 55032, from 150 KHz to 30 MHz
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Assessment of Performance of 80W Monocrystalline Photovoltaic (PV) Module in Abuja FCT
- 299Views 171PDF access
AbstractSolar PV modules are rated by manufacturers under Standard Test Conditions (STCs), which often differ from real outdoor operating conditions. Therefore, evaluating field performance is essential for accurate module selection and power prediction. In this study, a one-year performance assessment of an 80 W solar PV module manufactured by NSENI Solar Energy Limited was conducted in Abuja-FCT, Nigeria, using real-time measurements and simulation. Key electrical parameters (Pmax, VMP, and IMP), solar radiation, and module temperature were continuously monitored using calibrated instruments. In parallel, empirically based PV models incorporating manufacturer datasheet values and local climatic data were used for simulation.
The results show significant deviations between STC ratings and outdoor performance. At certain periods, the module voltage and efficiency dropped below 12 V and 11%, compared to the rated 17.35 V and 18%. While VMP and efficiency decreased at high solar radiation, Pmax, IMP, and module temperature increased, with opposite trends observed under lower radiation levels. A strong agreement between measured and simulated maximum power outputs was obtained, with a correlation coefficient of 0.98 and an average error of about 5%. These findings confirm the reliability of the applied PV models and demonstrate that the developed testbed can be used as a practical PV module performance validation facility suitable for replication across Nigeria. -
Optimization of the Hybrid Energy System Dedicated to Internet of Things Devices
- 401Views 223PDF access
AbstractThe energy autonomy of electronic devices used in embedded systems and by the Internet of Things determines the efficiency of these systems. This article highlights the design of a hybrid power source combining a piezoelectric energy harvester and an electromagnetic energy harvester to improve this autonomy. Simulations performed using COMSOL Multiphysics 6.2 showed the possibility of producing an output power of 4.35 mW at a resonant frequency of 46.5 Hz. This represents a significant improvement of 74% compared to the piezoelectric-only system (2.50 mW) and 135% compared to the electromagnetic-only system (1.85 mW). The hybrid system demonstrates a bandwidth of 9 Hz and a quality factor of 5.2. Parallel coupling was found to be significantly more effective than series coupling in maximizing vibrational energy recovery, demonstrating its superiority for this application. Although the hybrid system presents a trade-off between power output and bandwidth, it offers the highest energy efficiency for stable-frequency applications. According to these analyses, this optimized hybrid energy harvesting system offers several advantages over electrochemical batteries for powering low-consumption electronic devices, making them autonomous.
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Adaptive Active Power Control for Aligning Photovoltaic Output with Consumer Demand in Rural Feeders
- 489Views 270PDF access
AbstractThe increasing global integration of photovoltaic (PV) systems, vital for sustainable development, presents significant operational challenges in rural distribution networks. These feeders, particularly those in Kenya with high resistance-to-reactance (R/X) ratios, are prone to reverse power flow (RPF) and voltage instability, with generic smart inverter controls often proving ineffective due to insufficient voltage rise. This paper addresses this critical gap by developing and validating an adaptive, coordinated smart inverter control algorithm. Employing both Volt-VAR for reactive power support and Active Power Curtailment (APC), the strategy dynamically aligns PV output with real-time local load demand using quasi-static time-series simulations in OpenDSS for a representative Murang'a 11kV rural feeder in Kenya. This grid compliance was achieved at a quantified cost of approximately 1,500 kWh of curtailed renewable energy per day during the dry season. Critically, a comparative seasonal analysis was performed by repeating the simulations under rainy season (long rains) conditions, characterized by significantly reduced and variable solar irradiance. The rainy season results confirmed the absence of reverse power flow due to the naturally lower PV generation, which remained below local load demand throughout the day. This seasonal comparison validates that RPF is predominantly a dry-season phenomenon in this context and that the proposed adaptive control strategy is both critically necessary during high-irradiance periods and benignly non-intrusive during low-irradiance seasons. The study validates a practical methodology for high-penetration PV integration in challenging rural grids, emphasizing the necessity of feeder-specific, seasonally-informed control strategies to balance grid safety with renewable energy yield.
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