Mary Juma, Abusabah I. A. Ahmed, Bulbula Kumeda Kussia, Sammy Kuya
In day to day life, millions and millions of liters of water is being wasted through overflowing or excessive usage. In Kitui specifically, water availability by itself a challenge since the area rarely experiences long rainy seasons, has no flowing rivers, the dams are dry and there are only few boreholes available. It is for these reasons that we propose the adaptation of probe sensors to detect the water level in the hand washing water dispensers and storage tanks of the available boreholes in Kitui. The probe sensors detect the water level when they come in contact with them and in return a light emitting diode of the corresponding probe blinks. The system calculates the water level up to 100% by intervals of 25%. Moreover, the system is also connected to a relay switch that automatically turns on or off based on the water level. When each interval is reached, the light emitting diode blinks. At 25% the water level in the tank is lowest and this prompts the buzzer to produce a sound notifying the attenders that the tank needs to be refilled. An automatic refill also takes place due to the additional circuit connection. At 100% the relay goes OFF and water refill stops hence water wastage is avoided.
{"title":"Automatic Low-cost Water Level Indicator for Tanks and Hand Washing Water Dispensers in Kitui; Kenya during the Covid 19 Pandemic","authors":"Mary Juma, Abusabah I. A. Ahmed, Bulbula Kumeda Kussia, Sammy Kuya","doi":"10.54388/jkues.vi.221","DOIUrl":"https://doi.org/10.54388/jkues.vi.221","url":null,"abstract":"In day to day life, millions and millions of liters of water is being wasted through overflowing or excessive usage. In Kitui specifically, water availability by itself a challenge since the area rarely experiences long rainy seasons, has no flowing rivers, the dams are dry and there are only few boreholes available. It is for these reasons that we propose the adaptation of probe sensors to detect the water level in the hand washing water dispensers and storage tanks of the available boreholes in Kitui. The probe sensors detect the water level when they come in contact with them and in return a light emitting diode of the corresponding probe blinks. The system calculates the water level up to 100% by intervals of 25%. Moreover, the system is also connected to a relay switch that automatically turns on or off based on the water level. When each interval is reached, the light emitting diode blinks. At 25% the water level in the tank is lowest and this prompts the buzzer to produce a sound notifying the attenders that the tank needs to be refilled. An automatic refill also takes place due to the additional circuit connection. At 100% the relay goes OFF and water refill stops hence water wastage is avoided.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115879496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electrocardiograph (ECG) is a bioelectrical signal that is obtained by non-invasive method to register the electrical activities of the heart. This paper provides an attempt to develop computerized system for ECG signal filtering and classification. The proposed system encompass: pre-processing of the signal, extraction of pattern features through independent component analysis (ICA), power spectrum, and RR interval calculation. These processes provide an input feature vector to the Adaptive Neuro Fuzzy Inference System (ANFIS) that acts as a signal classifier. All of the classification process steps are implemented in MATLAB environment. This paper aslo provides a graphical User Interface (GUI) that makes classification process easier. Three cases of ECG waveforms that are selected from MIT-BIH database are considered for the system test; they are Normal (N), Ventricle Fibrillation (VF), and Ventricular tachycardia (VTachy). An accuracy of 96.66% has been achieved by the proposed system.
{"title":"Electrocardiograph Signals Diagnosis Using Adaptive Neuro-Fuzzy Inference System","authors":"A. Imam, Meinas Ahmed Mahmoud","doi":"10.54388/jkues.vi.228","DOIUrl":"https://doi.org/10.54388/jkues.vi.228","url":null,"abstract":"Electrocardiograph (ECG) is a bioelectrical signal that is obtained by non-invasive method to register the electrical activities of the heart. This paper provides an attempt to develop computerized system for ECG signal filtering and classification. The proposed system encompass: pre-processing of the signal, extraction of pattern features through independent component analysis (ICA), power spectrum, and RR interval calculation. These processes provide an input feature vector to the Adaptive Neuro Fuzzy Inference System (ANFIS) that acts as a signal classifier. All of the classification process steps are implemented in MATLAB environment. This paper aslo provides a graphical User Interface (GUI) that makes classification process easier. Three cases of ECG waveforms that are selected from MIT-BIH database are considered for the system test; they are Normal (N), Ventricle Fibrillation (VF), and Ventricular tachycardia (VTachy). An accuracy of 96.66% has been achieved by the proposed system.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125057392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
One of the main environmental threats is the gases from industrial process or other emissions activities, albeit they are several, all concern directed toward Nitrogen oxides NOX and Sulfur oxides SOX; because they may be a hazard for human and environment. The separation of nitrogen and sulfur oxides from waste gases is found to be affected by several operating parameters, this paper discusses some of them. The experiments were done on a bench-scale; 2900 ppm and 550 ppm , and using, (10) g , (0.5) g yellow phosphorus () at , with vigorous stirring for removal. The removal efficiency is monitored for different values of the emulsion temperature, yellow phosphorus () weight, and the emulsion stirring intensity. The removal efficiency isproportional to the emulsion’s temperature in the range ( 45 OC to 65 OC).The optimum temperature was, Nevertheless, the results revealed the removal efficiency is proportional to the phosphorus weight, that the efficiency of removal increases as the P4 content increases. Increasing stirring intensity will directly increase the removal percentage and the optimum stirring intensity is 1734 rpm.
{"title":"Effect of the Main Operating Variables on Efficiency of Treating Industrial Flue Gases Using Potash and Yellow Phosphorus","authors":"Montasir Alzaky, Rawya Adam, Tomadir Ibrahim, Samah SirElhkateem Ahmed, Rawia Siddig, Mohamed Magzoub GariebAllah, Eltayeb Asal","doi":"10.54388/jkues.vi.219","DOIUrl":"https://doi.org/10.54388/jkues.vi.219","url":null,"abstract":"One of the main environmental threats is the gases from industrial process or other emissions activities, albeit they are several, all concern directed toward Nitrogen oxides NOX and Sulfur oxides SOX; because they may be a hazard for human and environment. The separation of nitrogen and sulfur oxides from waste gases is found to be affected by several operating parameters, this paper discusses some of them. The experiments were done on a bench-scale; 2900 ppm and 550 ppm , and using, (10) g , (0.5) g yellow phosphorus () at , with vigorous stirring for removal. The removal efficiency is monitored for different values of the emulsion temperature, yellow phosphorus () weight, and the emulsion stirring intensity. The removal efficiency isproportional to the emulsion’s temperature in the range ( 45 OC to 65 OC).The optimum temperature was, Nevertheless, the results revealed the removal efficiency is proportional to the phosphorus weight, that the efficiency of removal increases as the P4 content increases. Increasing stirring intensity will directly increase the removal percentage and the optimum stirring intensity is 1734 rpm.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125681525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mobarak Tag, Adil Elrayah, Wael Hessen, Thora Abd Elradi
The Schrödinger and de Broglie hypothesis are directly derived from classical force and blank hypothesis by the quantum of total energy relation () and de Broglie relation. New time dependent Schrödinger equation is obtained by using wave function and non – relativistic wave function beside plank hypothesis .Also obtained new equation from TDSE to on additional kinetic energy and potential energy in classical equation which the result is corresponding to TDSE in 3D by using de Broglie hypothesis.
{"title":"Expression Time Dependent Schrödinger Equation from De Broglie Hypothesis and Hamiltonian function","authors":"Mobarak Tag, Adil Elrayah, Wael Hessen, Thora Abd Elradi","doi":"10.54388/jkues.vi.150","DOIUrl":"https://doi.org/10.54388/jkues.vi.150","url":null,"abstract":"The Schrödinger and de Broglie hypothesis are directly derived from classical force and blank hypothesis by the quantum of total energy relation () and de Broglie relation. New time dependent Schrödinger equation is obtained by using wave function and non – relativistic wave function beside plank hypothesis .Also obtained new equation from TDSE to on additional kinetic energy and potential energy in classical equation which the result is corresponding to TDSE in 3D by using de Broglie hypothesis.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132357954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mobarak Tag, Wail Hessen, Adil Elrayah, Emad Eldin Medani
In this study, both the Klein-Gordon equation and time-dependent Schrodinger equation are directly derived from De Broglie's (lamda=h/p). Besides that, a new formula of the Klein-Gordon equation was obtained by using two equations, i.e., the classical wave function and relativistic total energy relation [[hw] = [(h^2 k^2)/2m] + V]. Moreover, a new equation of time-dependent Schrodinger (TDSE) in three-dimension 3D was derived and evidently obtained. Thus, the previous result corresponds to (TDSE) in 3D calculated using two equations, (i.e., Einstein energy and Newton's second law of mechanics).
{"title":"Derivation of both Klein-Gordon equation and Time Dependent Schrödinger Equation form classical wave function","authors":"Mobarak Tag, Wail Hessen, Adil Elrayah, Emad Eldin Medani","doi":"10.54388/jkues.v2i3.131","DOIUrl":"https://doi.org/10.54388/jkues.v2i3.131","url":null,"abstract":"In this study, both the Klein-Gordon equation and time-dependent Schrodinger equation are directly derived from De Broglie's (lamda=h/p). Besides that, a new formula of the Klein-Gordon equation was obtained by using two equations, i.e., the classical wave function and relativistic total energy relation [[hw] = [(h^2 k^2)/2m] + V]. Moreover, a new equation of time-dependent Schrodinger (TDSE) in three-dimension 3D was derived and evidently obtained. Thus, the previous result corresponds to (TDSE) in 3D calculated using two equations, (i.e., Einstein energy and Newton's second law of mechanics).","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123623996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nadir Siddig, Zhang Ze Qiang, Abdallah Mokhtar, Ahmed Abualnor
The disassembly of waste products positively affects the environment, reduces the risk of environmental pollution, reduces the risk of spreading dangerous parts to the life of living entities, and provides the continuity of life on this planet.This research aims to contribute to the aforementioned of maintaining a clean environment by developing algorithms that help solve the problems of dismantling waste products and polluting the environment. In previous literature, researchers developed algorithms for artificial fish, improved artificial fish, and artificial whales to search for solutions with higher evidence instead From the local evidence, in this paper the artificial fish algorithm has been hybridized with the artificial whale algorithm for the purpose of developing solutions, and this method depends on the artificial fish flock first searching for food and here representing global solutions and avoiding predating traps (hooks with trap food), and after finding a flock The artificial swarm is the real food. The artificial whale sends bubbles to collect the swarm of artificial fish in the place of global high solutions, and gets them at once. The proposed algorithm was compared with the algorithms in the previous literature, and the results were as follows:Workstation was decreased by 0.5% to 22.2%, idle time was reduced by 82.5% to 84.0%, the demand index was reduced by 15% to 24.2%, and the hazardous index was reduced by 1.7% to 3.4%.
{"title":"Hybrid Whale-fish swarm algorithm to optimize disassembly line balancing problem","authors":"Nadir Siddig, Zhang Ze Qiang, Abdallah Mokhtar, Ahmed Abualnor","doi":"10.54388/jkues.v2i3.204","DOIUrl":"https://doi.org/10.54388/jkues.v2i3.204","url":null,"abstract":"The disassembly of waste products positively affects the environment, reduces the risk of environmental pollution, reduces the risk of spreading dangerous parts to the life of living entities, and provides the continuity of life on this planet.This research aims to contribute to the aforementioned of maintaining a clean environment by developing algorithms that help solve the problems of dismantling waste products and polluting the environment. In previous literature, researchers developed algorithms for artificial fish, improved artificial fish, and artificial whales to search for solutions with higher evidence instead From the local evidence, in this paper the artificial fish algorithm has been hybridized with the artificial whale algorithm for the purpose of developing solutions, and this method depends on the artificial fish flock first searching for food and here representing global solutions and avoiding predating traps (hooks with trap food), and after finding a flock The artificial swarm is the real food. The artificial whale sends bubbles to collect the swarm of artificial fish in the place of global high solutions, and gets them at once. The proposed algorithm was compared with the algorithms in the previous literature, and the results were as follows:Workstation was decreased by 0.5% to 22.2%, idle time was reduced by 82.5% to 84.0%, the demand index was reduced by 15% to 24.2%, and the hazardous index was reduced by 1.7% to 3.4%.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131392367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Elamin, Ibrahim Hassan Mohamed Elamin, Babiker Karama Abdalla
Due to the environmental concern and limited resources of petroleum oil and with the growing concern regarding global warming issues, the research for clean alternative biolubricants sources became a must. Among the most demanded sustainable clean energy sources is the Jatropha oil. The leached Jatropha oil used in this research work has explored the possibility of utilizing Jatropha oil as a lubricant and was analyzed for density, viscosity at (40, 100)c viscosity index, and the flashpoint which are necessary tests for base oil. Explore the commercial additives for the improvement of the Jatropha oil as a lubricant and comparison of the improved Jatropha oil lubricant against other commercial lubricant oils. The results show that all these properties are satisfactory and give good agreement. In this study, the Jatropha oil was found to be compatible with the required additives which are specified by API BASE OIL CATEGORIES. The experimental tests for these properties were performed as prescribed ASTM procedures, and the results were tabulated and discussed.
{"title":"Utilization of Jatropha oil as a lubricant","authors":"M. Elamin, Ibrahim Hassan Mohamed Elamin, Babiker Karama Abdalla","doi":"10.54388/jkues.v2i3.212","DOIUrl":"https://doi.org/10.54388/jkues.v2i3.212","url":null,"abstract":"Due to the environmental concern and limited resources of petroleum oil and with the growing concern regarding global warming issues, the research for clean alternative biolubricants sources became a must. Among the most demanded sustainable clean energy sources is the Jatropha oil. The leached Jatropha oil used in this research work has explored the possibility of utilizing Jatropha oil as a lubricant and was analyzed for density, viscosity at (40, 100)c viscosity index, and the flashpoint which are necessary tests for base oil. Explore the commercial additives for the improvement of the Jatropha oil as a lubricant and comparison of the improved Jatropha oil lubricant against other commercial lubricant oils. The results show that all these properties are satisfactory and give good agreement. In this study, the Jatropha oil was found to be compatible with the required additives which are specified by API BASE OIL CATEGORIES. The experimental tests for these properties were performed as prescribed ASTM procedures, and the results were tabulated and discussed.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131225545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mutwakil Tajelsir Abdelmarouf Mohammed, Ali Hussein Mohammed Ali Bass, Mahgoub Elhaj Mahgoub Kambal
This paper represents experimental study to examine the influence of several coatings to decrease the rebar corrosion. The experiments were carried out for three types of coatings. Those have been painted on the steel and select the best type of coatings in decreasing the steel corrosion rate. Testing program included experiments to select the best one within three types of coatings (Isonem MS Polymers, Sika Zink Rich-1, Isonem PU Floor) are used and available in market. The result of corrosion rate for rebar in uncoated samples in level five (after 70-days) was loss of more than 50% from its weight. While, the result of corrosion rate for rebar in samples with coating type (C) "Isonem PU Floor" was loss of less than 2 % from its weight which is the most effective type and the best coating.
本文对几种涂层对钢筋腐蚀的影响进行了试验研究。对三种类型的涂层进行了实验。这些已经涂在钢上，并选择最好的涂层类型，以降低钢的腐蚀速度。测试程序包括在市场上使用和销售的三种涂料(Isonem MS Polymers, Sika Zink Rich-1, Isonem PU Floor)中选择最佳的一种。在第五级(70天后)未涂层样品中钢筋的腐蚀速率的结果是其重量损失超过50%。而涂覆类型为(C)的钢筋腐蚀速率结果“Isonem PU地板”的重量损失小于2%，是最有效的类型和最好的涂料。
{"title":"Study of the Impact of Several Coatings in Minimizing the Rebar Corrosion in Concrete","authors":"Mutwakil Tajelsir Abdelmarouf Mohammed, Ali Hussein Mohammed Ali Bass, Mahgoub Elhaj Mahgoub Kambal","doi":"10.54388/jkues.v2i3.208","DOIUrl":"https://doi.org/10.54388/jkues.v2i3.208","url":null,"abstract":"This paper represents experimental study to examine the influence of several coatings to decrease the rebar corrosion. The experiments were carried out for three types of coatings. Those have been painted on the steel and select the best type of coatings in decreasing the steel corrosion rate. Testing program included experiments to select the best one within three types of coatings (Isonem MS Polymers, Sika Zink Rich-1, Isonem PU Floor) are used and available in market. The result of corrosion rate for rebar in uncoated samples in level five (after 70-days) was loss of more than 50% from its weight. While, the result of corrosion rate for rebar in samples with coating type (C) \"Isonem PU Floor\" was loss of less than 2 % from its weight which is the most effective type and the best coating.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123808202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nadir Siddig, Zeqiang Zhang, Abdallah Mokhtar, Ahmed Babikir Abualnor
The disassembly line has issues with balancing the disassembly, including worker errors and the influence of these errors on worker productivity, disassembly idle time, loss of smooth work, accumulation and blockage of some work stations, and the lack of effectiveness of other work stations. In this paper, a new novel technique for balancing the waste products disassembly line is proposed, and this method depends on the machine's vision to assist workers in performing essential tasks. The findings of comparing the performance of workers with and without assistance with the proposed method were as follows: Worker productivity increased by 50 percent, idle time was reduced by 77.8 percent, the number of workstations was reduced by 33.3 percent, and the error rate was reduced by 81.5 percent.
{"title":"An Error Prevention Using Deep learning to Solve Disassembly Line Balancing Problem","authors":"Nadir Siddig, Zeqiang Zhang, Abdallah Mokhtar, Ahmed Babikir Abualnor","doi":"10.54388/jkues.v2i3.200","DOIUrl":"https://doi.org/10.54388/jkues.v2i3.200","url":null,"abstract":"The disassembly line has issues with balancing the disassembly, including worker errors and the influence of these errors on worker productivity, disassembly idle time, loss of smooth work, accumulation and blockage of some work stations, and the lack of effectiveness of other work stations. In this paper, a new novel technique for balancing the waste products disassembly line is proposed, and this method depends on the machine's vision to assist workers in performing essential tasks. The findings of comparing the performance of workers with and without assistance with the proposed method were as follows: Worker productivity increased by 50 percent, idle time was reduced by 77.8 percent, the number of workstations was reduced by 33.3 percent, and the error rate was reduced by 81.5 percent.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130027846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wireless Power Transfer (WPT) technology for charging Electric Vehicle (EV) batteries is promising technology. System performance improvement and reducing Electromagnetic field (EMF) leakage are the key factors in designing an optimum charger. In this paper, adding ferrite disk to the WPT resonator is intensively studied. Three case studies are proposed, including coils only without ferrite, ferrite disk at the transmitting side only, and ferrite disks are used with the two coils. Finite Element Method (FEM) software is used for designing 3 kW-class, 20 cm transfer distance, 85 kHz charger. The simulation results are recorded and compared with regard to the system coil-to-coil efficiency and the EMF levels above the receiving coil and inside the air-gap. The results show that adding ferrite disks is significantly enhanced the system performance as well as reduced the EMF leakage surrounding the charger.
{"title":"Effects of Ferromagnetic Cores in Wireless Power Transfer System for Charging Electric Vehicles","authors":"Elnail Kamal Eldin Idris Ahmed","doi":"10.54388/jkues.v2i3.198","DOIUrl":"https://doi.org/10.54388/jkues.v2i3.198","url":null,"abstract":"Wireless Power Transfer (WPT) technology for charging Electric Vehicle (EV) batteries is promising technology. System performance improvement and reducing Electromagnetic field (EMF) leakage are the key factors in designing an optimum charger. In this paper, adding ferrite disk to the WPT resonator is intensively studied. Three case studies are proposed, including coils only without ferrite, ferrite disk at the transmitting side only, and ferrite disks are used with the two coils. Finite Element Method (FEM) software is used for designing 3 kW-class, 20 cm transfer distance, 85 kHz charger. The simulation results are recorded and compared with regard to the system coil-to-coil efficiency and the EMF levels above the receiving coil and inside the air-gap. The results show that adding ferrite disks is significantly enhanced the system performance as well as reduced the EMF leakage surrounding the charger.","PeriodicalId":129247,"journal":{"name":"Journal of Karary University for Engineering and Science","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131294274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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