Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 71, listelenen: 41-60
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Performance Analysis of T-type Inverter Based on Improved Hysteresis Current Controller
(Balkan Journal of Electrical and Computer Engineering, 2019)This paper presents an improved hysteresis current control method for five level T-type inverter. The proposed method is based on four hysteresis levels and performed to generate switching signals of fundamental transistors ... -
Thermal Modeling and Performance Analysis for a Chevron Type Heat Exchanger by Using Artificial Neural Network with Limited Experimental Data
(Avrupa Bilim ve Teknoloji Dergisi, 2020)The problem of heat exchange between two or more fluids at different temperatures is one of the most important and most common problems of engineering applications. In order to solve this problem efficiently, the transfer ... -
Conceptual design analysis for a lightweight aircraft with a fuel cell hybrid propulsion system
(Taylor and Francis Inc., 2020)With the ever-growing aviation industry, energy researches on aviation have turned to renewable energy sources providing electric propulsion. Fuel cells are one of the most popular sources of power for electric vehicles ... -
Experimental investigation of fuel cell usage on an air Vehicle's hybrid propulsion system
(Elsevier, 2020)Today, drones are offering a key solution and being preferable more and more by governments and companies for military and commercial usage. One of the biggest handicaps to the more widespread usage of drones is insufficient ... -
Performance & emission analysis of HHO enriched dual-fuelled diesel engine with artificial neural network prediction approaches
(Elsevier, 2020)Most of the studies on conventional fuel types that can be used in internal combustion engines have been made in order to improve performance values. Nowadays environmental problems have shown that emission values are more ... -
Energy distribution analyses of an additional traction battery on hydrogen fuel cell hybrid electric vehicle
(Elsevier, 2020)Hydrogen is the most abundant element in the world and produces only water vapor as a result of chemical reaction that occurred in fuel cells. Therefore, fuel cell electric vehicles, which use hydrogen as fuel, continue ... -
Zero-sequence current injection based power flow control strategy for grid inverter interfaced renewable energy systems
(Taylor & Francis, 2020)This paper deals with an energy management issue for the grid-connected renewable energy sources connected with unbalanced loads. In the gridconnected energy systems, conventional energy management methods are used to ... -
Alternative fuelled hybrid electric vehicle (AF-HEV) with hydrogen enriched internal combustion engine
(Elsevier, 2019)In this paper, hybrid electric vehicle (HEV) that powered by hydrogen (H-2) enriched internal combustion (ICE) engine was studied both simulation and experimental. As an alternative fuel, the usage of H-2 as additional ... -
Virtual Park-based control strategy for grid-connected inverter interfaced renewable energy sources
(Inst Engineering Technology-Iet, 2019)Unbalanced grid faults are the most severe perturbations which degrade the performance of grid-connected inverter interfaced renewable energy sources (IIRESs). In this regard, this study proposes a novel control strategy ... -
Improved instantaneous power theory based current harmonic extraction for unbalanced electrical grid conditions
(Elsevier Science Sa, 2019)This paper presents a novel harmonic extraction method named as "virtual input signal based instantaneous power theory (VIS-IPT)". In this study, VIS-IPT is tested in a shunt active power filter (SAPF) for improving the ... -
A perspective on hydrogen energy research, development and innovation activities in Turkey
(Wiley, 2020)Hydrogen can be considered as the most promising fuel towards the greenization. Developed and developing countries around the world have formed their research, investments and directives on hydrogen. The leading countries ... -
Interline fuel cell (I-FC) system with dual-functional control capability
(Pergamon-Elsevier Science Ltd, 2020)In this paper, a new system concept is presented for the grid connection of fuel cells. In conventional grid-connected systems, fuel cells ensure the generated power into a single electrical feeder and control the ... -
Performance enhancement of energy extraction capability for fuel cell implementations with improved Cuckoo search algorithm
(Pergamon-Elsevier Science, 2020)This paper addresses an improved optimization method to enhance the energy extraction capability of fuel cell implementations. In this study, the proposed method called Dynamic Cuckoo Search Algorithm (DCSA) is tested in ... -
Active/reactive energy control scheme for grid-connected fuel cell system with local inductive loads
(Pergamon-Elsevier Science, 2020)In the grid interconnection of fuel cells, local reactive loads connected to the electrical systems generate reactive power which deteriorates the power factor in the utility-grids. This situation causes energy losses, ... -
Improvement of energy harvesting capability in grid-connected photovoltaic micro-inverters
(Taylor & Francis, 2020)In this paper, a multi-stage micro-inverter system depending on a dual neutral point clamped (D-NPC) inverter is developed for low power photovoltaic (PV) applications. The primary objectives of this study are determined ... -
Uncoupled Modeling of the Effects of Coating Layer on the Growth Instability in Pure Metal Solidification
(Springer International Publishing Ag, 2020)The mold coating is one of the factors to control the heat transfer rate and development of microstructure in metal solidification. In this study, effects of the coating layer on growth instability in solidification of ... -
Energy distribution analyses of an additional traction battery on hydrogen fuel cell hybrid electric vehicle
(Elsevier Ltd, 2019)Hydrogen is the most abundant element in the world and produces only water vapor as a result of chemical reaction that occurred in fuel cells. Therefore, fuel cell electric vehicles, which use hydrogen as fuel, continue ... -
Performance & emission analysis of HHO enriched dual-fuelled diesel engine with artificial neural network prediction approaches
(Elsevier, 2020)Most of the studies on conventional fuel types that can be used in internal combustion engines have been made in order to improve performance values. Nowadays environmental problems have shown that emission values are more ... -
Fuzzy self-adaptive PID control technique for driving HHO dry cell systems
(Elsevier, 2020)When the standard operating temperatures are exceeded in hydroxy generators, production performance decreases and power consumption increases. Self-adaptive fuzzy proportional integral derivative systems have been used to ... -
A novel application of pulse width modulation technique on hydroxy gas production
(Elsevier, 2019)Software and hardware advancements on a hydroxy gas (HHO) production system is presented in this experimental study. A unique control system that enables to generate hydroxy gas at the specified volumetric flow rates with ...
