Ghanim Hassan | Middle Technical University (original) (raw)

Papers by Ghanim Hassan

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Indeed, I feel just like you and there are too many figures but to the best of my knowledge, this... more Indeed, I feel just like you and there are too many figures but to the best of my knowledge, this is the best form I can present my work.

Most of the comments were being taken into revision. Again, I suffered a lot as the line numbers ... more Most of the comments were being taken into revision. Again, I suffered a lot as the line numbers did not indicate the relevant comments but I did my best. If there are any further comments, please let me know.

GAZI UNIVERSITY JOURNAL OF SCIENCE, 2021

Lead-acid batteries are widely used in the conventional cars as a main electrical energy storage ... more Lead-acid batteries are widely used in the conventional cars as a main electrical energy storage system to supply the power for the following start. In this paper, the efficacy of lead batteries was evaluated and compared against ultra-capacitors and alternative battery designs via a simulationbased model of the complete process. Specifically, several parameters were assessed such as the weight and reliability. The results confirm the consistency of lead-acid batteries as an appropriate replacement to super-capacitors. The findings were also confirmed by actual measurements carried out in the car. Received: 16 July 2021 Accepted: 1 Nov 2021

The proper selection of winding parameters for resonant circuits in inductive power transmission ... more The proper selection of winding parameters for resonant circuits in inductive power transmission systems is an important issue, as it has a significant impact on system performance and power transmission, and these parameters can be optimized. Depending on the relationship between the coil design and the electrical parameters, the optimal number of coils can be selected for different criteria and protection conditions. This paper presents a method for calculating the geometrical and electrical parameters of planar coils used in parallel resonant systems for wireless power transmission (WPT) system, and for selecting the optimal number of coils. The equations for calculating the active resistance and inductance of the coils are normalized based on the given coil design parameters.. Practical examples of application of the selected method to transmitter and receiver windings of WPT systems are given. The obtained results indicates that the system performance and dissipated power are h...

2019 22nd International Conference on Control Systems and Computer Science (CSCS), 2019

The increment in industrial demand for electrical power come to search for alternative clean and ... more The increment in industrial demand for electrical power come to search for alternative clean and cheap energy sources. One of these choices is the renewable energy sources. So, there are some energy sources now can connect to the main electrical distribution networks which may led to influence the stability and performance of the system. In this paper, number of technical parameters related to electrical power quality have been tested in order to determine the influence of integrating the solar source on electrical distribution network. The investigation has been carried out by calculating the losses in active power, reactive power and the voltage value of electrical distribution network after connecting the solar source though the main distribution grid. Simulation model was performed with MATLAB Simulink and the final calculation results were compared with the electrical standard (9-IEEE bus network). The obtained results indicate that the integration of solar source with the load distribution grid can cause some losses in active and reactive power.

3RD INTERNATIONAL SCIENTIFIC CONFERENCE OF ALKAFEEL UNIVERSITY (ISCKU 2021), 2022

The huge advance in electrical technology in the last decades cause an increasing in the number o... more The huge advance in electrical technology in the last decades cause an increasing in the number of electrical devices in our homes which cause an increasing in the presence of electric and magnetic fields that led to a negative health effects due to exposure to such fields . The aim of this research is to investigate the strength of magnetic fields emitted by some home electrical devices .Measurements were conducted by using the EMF TESTER (EMF 827). Results obtained shows that the practical measurements are consistent with the mathematical calculations. Comparison of these results with the standard guideline limits recommended by the International Commission on NonIonizing Radiation Protection (ICNIRP) shows that they lay within the acceptable limits and that means there is no health risk from exposure to these fields if the exposure is for a short and discontinues periods .

With the increasing of mobile phones users during the last decades , the potential adverse outcom... more With the increasing of mobile phones users during the last decades , the potential adverse outcomes from exposure to electromagnetic fields (EMF) emitted from different types of these mobile phones has also been increased. In this work the measurement of electric field (EF) emitted from different types of mobile phone have been conducted and the Specific Absorption Rate (SAR) had been mathematically calculated for different types of mobile phones in different ranges from the human head . The comparison of measured levels with the international radiation exposure ICNIRP indicate that they are lay within the standards limits .that means there is no negative effect on human health from the exposure to these radiations if the exposure is for a short and discontinues periods

International Journal of Electrical and Computer Engineering, 2021

The use of solar energy may replace the present fossil fuel or gas to produce electricity. The go... more 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...

Indonesian Journal of Electrical Engineering and Computer Science, 2020

In this paper, the effect of the ambient temperature on the PV modules for different angles of in... more 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 househ...

IOP Conference Series: Materials Science and Engineering, 2019

Eichhornia, or water hyacinth represents a serious threat to potable water basins. This problem i... more Eichhornia, or water hyacinth represents a serious threat to potable water basins. This problem is materialized majorly in consuming large amounts of water and dissolved Oxygen that is necessary for aquatic life, and minorly in hindering water streams. Even there are limited trials to overcome such pests, none of them presents an acceptable solution economically and logically. Chlorine is a well-known biocide and broadly used in water industry. It could give a possible method to fight such weed. To investigate that, concentration-time plot should be introduced similar to any other microorganisms; especially, bacteria in water. In this work, various doses of Chlorine along various time periods were examined as an introductory to prescribe an adequate method to deal with such water disaster which can severely attack water resources.

Recently, a process was developed for continuous removal of bacteria from water using the 8 princ... more Recently, a process was developed for continuous removal of bacteria from water using the 8 principle of froth flotation through compressed air only without any chemicals (Hassan, 2015). 9 This work examines the extent to which chemical free froth flotation can purify drinking water.

Microorganisms in potable water systems are either present in the planktonic “floating stage”, or... more Microorganisms in potable water systems are either present in the planktonic “floating stage”, or attached to surfaces, usually as biofilm. Many hygienic and economic problems are attributed to this phenomenon. Through the last seven or so decades many trials were made to overcome biofilm problems. Unfortunately, biofilm prevention stills a premature field of science. Therefore, serious solutions with new horizons are needed. The objective of this study is to provide a water distribution system which is free of microorganisms, both in the planktonic and biofilm stages, and biocides. The two components are interactive; biofilm formation is stimulated by the presence of low (residual) levels of biocides whereas removing the bacteria results in less or no biocide being needed. The first part of the research investigates the use of chemical free froth flotation to remove microorganisms. Bacteria are hydrophobic and thus should be able to be separated by froths. A method for producing fr...

Membranes

Reverse Osmosis (RO) has already proved its worth as an efficient treatment method in chemical an... more Reverse Osmosis (RO) has already proved its worth as an efficient treatment method in chemical and environmental engineering applications. Various successful RO attempts for the rejection of organic and highly toxic pollutants from wastewater can be found in the literature over the last decade. Dimethylphenol is classified as a high-toxic organic compound found ubiquitously in wastewater. It poses a real threat to humans and the environment even at low concentration. In this paper, a model based framework was developed for the simulation and optimisation of RO process for the removal of dimethylphenol from wastewater. We incorporated our earlier developed and validated process model into the Species Conserving Genetic Algorithm (SCGA) based optimisation framework to optimise the design and operational parameters of the process. To provide a deeper insight of the process to the readers, the influences of membrane design parameters on dimethylphenol rejection, water recovery rate and ...

IOP Conference Series: Materials Science and Engineering