Articles
<![CDATA[Numerical analysis of the photovoltaic system inspection with active cooling ]]>
<![CDATA[Ahmed Hasan Mohammed]]>;
<![CDATA[Ghanim Thiab Hasan]]>;
<![CDATA[Kamil Jadu Ali]]>
<![CDATA[ International Journal of Electrical and Computer Engineering (IJECE) Vol 11, No 4: August 2021 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijece.v11i4.pp2779-2789
<![CDATA[The use of solar energy may replace the present fossil fuel or gas to produce electricity. The goal of this study is to set up a simulation model to survey the performance of a photovoltaic thermal system (PV/T) based on the computational fluid dynamics (CFD) method. Ansys fluent software has been used for the simulation procedure. The electrical panel output and its efficiency were investigated numerically. In addition, the effect of variations in absorbed radiation on inlet fluid and absorber panel temperature on the system performance was investigated. The study was conducted for three cases, in a first case, where there is no refrigerant in the system and in the latter case, at constant fluid rate of the pump, whereas the third case with optimal pump operation. The numerical findings obtained from CFD simulators have been compared with the test records of the experimental results of the literature. The two results have a good agreement. From the obtained results, it can be noted that the system shows a good improvement for the electric net efficiency level of 3.52% with a lower reduction of the thermal system efficiency of 1.96% in comparison to the system when using the constantly high flow rate.]]>
<![CDATA[Notice of Retraction: Comparative evaluation of SiC/GaN “MOSFET” transistors under different switching conditions ]]>
<![CDATA[Ghanim Thiab Hasan]]>;
<![CDATA[Ali Hlal Mutlaq]]>;
<![CDATA[Kamil Jadu Ali]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 11, No 2: April 2022 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v11i2.3445
<![CDATA[Notice of Retraction-----------------------------------------------------------------------After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IAES's Publication Principles.We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.The presenting author of this paper has the option to appeal this decision by contacting beei@iaescore.com.-----------------------------------------------------------------------The aim of this paper is to conduct a mutual comparison of switching energy losses in cascade gallium nitride (GaN) and silicon "super junction" MOSFET” transistor, in both cases designed for a maximum operating voltage of (650 V). For the analysis of switching characteristics of transistors used double pulse test method by using detailed SPICE simulation model. Data on transient on and off processes were generated using the “LTspice” simulation package in a wide range of drain currents with two different gate resistance values of the tested transistors. The total energy losses in the GaN have been simulated during one transistor at (on and off cycle). The obtained results indicate that the superior switching characteristics of GaN devices for a drain current of (30 A) is five to eight times less than the switching characteristics of silicon “MOSFET” transistor when compared to silicon components, especially during operation of transistors with high drain currents.]]>
<![CDATA[An empirical correlation of ambient temperature impact on PV module considering natural convection ]]>
<![CDATA[Kamil Jadu Ali]]>;
<![CDATA[Ahmed Hasan Mohammad]]>;
<![CDATA[Ghanim Thiab Hasan]]>
<![CDATA[ Indonesian Journal of Electrical Engineering and Computer Science Vol 19, No 2: August 2020 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijeecs.v19.i2.pp627-634
<![CDATA[In this paper, the effect of the ambient temperature on the PV modules for different angles of inclinations and different intensities of the solar radiation on the surface of the PV module is considered by using empirical correlations for natural convection. An analytical model based on the energy balance equilibrium between the PV module and the environment conditions has been used. Also an expression for calculating the electric power of silicon PV modules in a function of the ambient temperature, the intensity of the solar radiation, the incident angle of the solar radiation to the surface of the PV module and the efficiency of the PV modules at STC conditions have been used. By comparing the obtained both results, it can be seen that the largest deviation between the power values obtained by the analytical model and expression is about (5 %). The results obtained indicates that in the case of a small number of PV modules corresponding to the required number for an average household, it is more economical to invest additional resources in increasing the PV module's surface area than in case of the PV module with sun tracking system. ]]>
<![CDATA[Investigate and analysis the efficiency of photovoltaic system with active cooling based on numerical method ]]>
<![CDATA[Nabeel Mohamed akram Samad]]>;
<![CDATA[Khaleel Ali Khudhur]]>;
<![CDATA[Ghanim Thiab Hasan]]>
<![CDATA[ Indonesian Journal of Electrical Engineering and Computer Science Vol 24, No 3: December 2021 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijeecs.v24.i3.pp1249-1259
<![CDATA[The aim of this research is to establish a simulation model to examine the performance and working efficiency of a solar cell system by using computational fluid dynamics (CFD). The proposed model consists of a water feed tube and an absorber plate, as well as a convection heat transfer system, the ansys fluent system simulation program was used. The electrical output of the panel and its efficiency have been investigated and the effect of changes in the intensity of solar radiation on the temperature of the liquid and the absorption plate on the performance of the system have been studied. A dynamic analysis of the thermal hybrid system was performed with a circulation pump. Calculations were performed using a detailed mathematical model. The analysis was performed in three cases, the first case when the system has no cooling, in the second case with constant flow, and in the third case when the pump was optimized. Finally, numerical results were compared with the practical reference results. Both results are in good agreement. The results obtained showed that the system with optimization case give a good improvement in efficiency with low reduction of the thermal efficiency compared to a constant flow.]]>
<![CDATA[Investigate the optimal power system by using hybrid optimization of multiple energy resources software ]]>
<![CDATA[Ghanim Thiab Hasan]]>;
<![CDATA[Ali Hlal Mutlaq]]>;
<![CDATA[Mohammad Omar Salih]]>
<![CDATA[ Indonesian Journal of Electrical Engineering and Computer Science Vol 26, No 1: April 2022 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijeecs.v26.i1.pp9-19
<![CDATA[Increasing the effects of global pollution and the availability of renewable energy sources has push many countries to use reasonable energy sources such as wind and solar energy. This paper presents a case study of evaluating a hybrid renewable energy system by using a hybrid optimization of multiple energy resources (HOMER) software program based on the entered data available from the net for the considered location. The hybrid system consisting of a wind turbine, a photovoltaic system, a battery and a diesel generator. The simulation results are presented in a graphical curves n HOMER software. The obtained results indicate that by using the HOMER simulation program, the optimal design of the hybrid electrical power system for the considered location can be achieved which can help the designer to decide the types and number of the competent required for conducting the intending hybrid electrical power system which results in optimum output power in addition to reducing the overall operating costs.]]>
<![CDATA[Design of current controlled instrumental amplifier by using complementary metallic oxide semiconductor technology ]]>
<![CDATA[Ghanim Thiab Hasan]]>;
<![CDATA[Kamil Jadu Ali]]>;
<![CDATA[Ali Hlal Mutlaq]]>
<![CDATA[ Indonesian Journal of Electrical Engineering and Computer Science Vol 29, No 2: February 2023 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijeecs.v29.i2.pp652-657
<![CDATA[In this paper, a complementary metal oxide semiconductor (CMOS) instrumental amplifier was designed and implemented in order to provide the possibility of controlling the current and voltage gain. The proposed instrumentation amplifier consists of three conveyors with active resistor. The parasitic resistance value (Rx) was reduced with a large bandwidth level in addition to achieving a high common mode rejection ratio (CMRR). Simulation was performed by using 0.35μm CMOS technology by using the advanced design system (ADS) software. The results obtained prove that the proposed circuit has a good efficiency with higher degree of CMRR in comparison with other amplifiers designed and implemented in other similar works.]]>
<![CDATA[Analysis the efficiency of multi-input-multi-output (MIMO) transmit receive systems ]]>
<![CDATA[Ali Hlal Mutlaq]]>;
<![CDATA[Mohammed Ayad Saad]]>;
<![CDATA[Faris Hassan Tata]]>;
<![CDATA[Ghanim Thiab Hasan]]>
<![CDATA[ Indonesian Journal of Electrical Engineering and Computer Science Vol 29, No 1: January 2023 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijeecs.v29.i1.pp190-196
<![CDATA[Transmit antennas are chosen in multi-input-multi-output (MIMO) systems. Effective in improving system capacity while lowering RF connection costs and simplifying the system. Complete method with greatest accuracy for joint transmits and receive antenna selection (JTRAS), capable of scanning all subsets of both transmitting and receiving antennas for the optimal solution. However, when as the number of antennas but also computational complexity increase grows too great, limiting its application. Antennas are coded fractionally channel capacity maximizing coding is used as a basic criterion in this paper, and an intelligent algorithm Particle swarm algorithm, generic algorithm are used to pick antennas. The simulation results show that both algorithms are capable of performing antenna selection.]]>
<![CDATA[DIA-English-Arabic neural machine translation domain: sulfur industry ]]>
<![CDATA[Diadeen Ali Hameed]]>;
<![CDATA[Tahseen Ameen Faisal]]>;
<![CDATA[Alaa Khudhair Abbas]]>;
<![CDATA[Harith Abdullah Ali]]>;
<![CDATA[Ghanim Thiab Hasan]]>
<![CDATA[ Indonesian Journal of Electrical Engineering and Computer Science Vol 27, No 3: September 2022 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijeecs.v27.i3.pp1619-1624
<![CDATA[The aim of this paper is the design and development a new English-Arabic neural machine translation (NMT) called DIA translation system. The main purpose of the designing system is to study translator limited sulfur industry domain as a stand-alone tool in order to improve the translation quality. Machine translation (MT) are very sensitive to the domains they were trained on and can be integrated with general (English-Arabic) MT systems. The proposed system has mainly four directions: supports chemical symbols, terms, phrase, and text and it is evaluated by using (1,200) various English declarative sentences which written by English Language experts. The obtained results indicate that this system is high effective and has an accuracy of 79.33% in comparison with Google translator which has 38.67% for the same test samples.]]>
<![CDATA[Investigate the maximum power point of photovoltaic system at different environmental conditions ]]>
<![CDATA[Khaleel Ali Khudhur]]>;
<![CDATA[Nabeel Mohammed Akram Samad]]>;
<![CDATA[Ghanim Thiab Hasan]]>
<![CDATA[ International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 1: February 2023 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/ijece.v13i1.pp39-45
<![CDATA[The main objective of this work is to implement a circuit-based simulation model of a photovoltaic (PV) cell in order to investigate the electrical behavior of the practical cell with respect to some changes in weather parameters. The simulation model consists of three subsystems: photovoltaic cells, DC/DC converter and MPPT controller based logic fuzzy control. The maximum power control function is achieved with the appropriate power control of the power inverter. Fuzzy logic controller has been used to perform MPPT functions to get maximum power from the PV panel. The proposed circuit was implemented in MATLAB/Simulink. The obtained results show that the output sequence is non-linear and almost constant current to the open circuit voltage and the power has maximum motion to voltage for certain environmental conditions.]]>
