Abdelrahim Ate - Academia.edu (original) (raw)

Papers by Abdelrahim Ate

Borobudur Engineering Review, May 21, 2023

This study focuses on developing a prototype for a seawater desalination system powered by solar ... more This study focuses on developing a prototype for a seawater desalination system powered by solar panel. The desalination process is heated by a solar collector and 150 WP solar panel. The primary objective is to design, develop, and evaluate the prototype's efficacy, affordability, and scalability. The efficiency was measured by the quantity of freshwater produced per unit of solar energy. Of the three distillation tests, it was determined that the addition of a heater enhanced the performance of the system. However, the overall efficiency was limited due to the solar panel and collector's low heat output. A positive correlation was observed between irradiance and temperature, but incomplete evaporation indicated the need for additional research to optimize the process. The system consisted of a solar collector, a heater, and a distillation apparatus. Three distillation tests revealed that the addition of a heater improved the system's performance, resulting in a maximum achievable efficiency of 0.99% and the production of 16 ml of fresh water. This study demonstrates the potential for renewable energy sources to power seawater desalination and lays the groundwork for future sustainable desalination technologies despite its limitations.

The main purpose of this paper to ensure the chemical solution inside the reactor vessel maintain... more The main purpose of this paper to ensure the chemical solution inside the reactor vessel maintained based on Raspberry Pi control system to keep the temperature constant. A steam-heated jacket envelops the reactor vessel, transferring heat from the steam into the chemical solution inside. The control system maintains a constant temperature by measuring the temperature of the reactor vessel, and throttling steam from a boiler to the steam jacket to add more or less heat as needed normally this action done by PLC or DCS, in this paper we are using Raspberry pi as temperature controller to monitor and control the temperature reactor.

TELKOMNIKA Telecommunication Computing Electronics and Control, Oct 1, 2020

Transient Stability is the capability of a system to be able to return to its normal state after ... more Transient Stability is the capability of a system to be able to return to its normal state after experiencing large disturbances. The static var compensator (SVC) is a shunt device of the flexible AC transmission systems (FACTS) family using power electronics to improve transient stability in power system. For the SVC control, it is usually used a PI controller, although PI controller is simpler and cheaper but not suitable when power system is subjected to transient stability since power system become non-linear system. In order to overcome this problem, the PI controller combined with Fuzzy controller is designed. Two types of faults were considered for this study to examine the effect of the fuzzy-SVC controller on system transient stability, the proposed fault types are single line to ground fault and three lines to ground fault. The performance and behavior of the designed fuzzy controller compared with that of the conventional PI controller in term of terminal voltage, rotor angle, and transmission line active power.

International Journal of Power Electronics and Drive Systems (IJPEDS)

This research aims to design a flyback topology switch-mode power supply constant voltage and con... more This research aims to design a flyback topology switch-mode power supply constant voltage and constant current light emitting diode (LED) driver to improve the performance of the LED. The flyback topology is chosen for its simple design and small size and uses high-frequency switching to lower the high DC voltage from the power source. The research aims to avoid blackouts caused by a drop in the power source voltage and to produce technological products that can be developed for other lighting applications. The constant-voltage feedback system ensures that the current flowing to the LED remains stable despite changes in load or other conditions. When there is a voltage drop from the power source, this topology can maintain the voltage and current stable and in accordance with the working voltage specifications of the LEDs. According to test results, the LED driver's output voltage ranges from 18.03 to 18.06 volts with an average message error value of 0.3%. In this system, switc...

Makara Journal of Technology, 2021

To benefit from electronic learning (E-learning), organizations should execute considerable upfro... more To benefit from electronic learning (E-learning), organizations should execute considerable upfront analysis to ascertain their E-learning readiness. Studies have demonstrated a range of models that have been adapted, but they are used in developed counties for whom E-learning readiness is elevated. Thus, these models are not valid in growing countries, such as Sudan. Based on a modified model, this research was performed descriptively by applying a questionnaire-based survey method to assess the level of Sudan universities’ readiness in the employment of the E-learning system. This modified model includes social support, technology readiness, attitude toward E-learning, acceptance of E-learning, and individual learners. Furthermore, the adoption and implementation of E-learning involve numerous challenges and constraints. Therefore, in this study, the challenges that could be faced in applying E-learning in Sudan from students’ perspectives are investigated. The results show that t...

TELKOMNIKA (Telecommunication Computing Electronics and Control), 2020

ABSTRACT The fabrication and performance of an ultraviolet (UV) sensor based on individual ZnO na... more ABSTRACT The fabrication and performance of an ultraviolet (UV) sensor based on individual ZnO nanowire is presented in this research. ZnO nanowires were synthesized by a CVD procedure and have been investigated by TEM, SEM and PL spectroscopy. The Schottky barriers between ZnO nanowire and Pt electrodes are investigated in air and nitrogen atmosphere, respectively. The photoresponse of the UV sensor are studied using a UV LED with wavelength of 375 nm. The conductance of individual ZnO nanowire is very sensitive to UV light, and the photo response exhibits an excellent sensitivity and reliability, which suggests that the ZnO nanowire is a promising sensing element for UV photodetectors. Moreover, measurements indicate that the adsorption and desorption of oxygen molecules on the surface of the ZnO nanowire can significantly influence its photoelectrical properties.

AIP Conference Proceedings, 2014

Ultrafast with high-performance CuO nanowires UV/IR photodetectors was fabricated using CuO nanow... more Ultrafast with high-performance CuO nanowires UV/IR photodetectors was fabricated using CuO nanowires photodetector with platinum (Pt) contact electrodes and its optoelectronic properties were examined. The CuO nanowires used in the experiment were synthesized by thermal oxidation method. The electrical performance and photoelectric response performance were studied, and the results showed that the UV/IR photodetector exhibited a high sensitivity to UV 390 nm, Blue 410 nm ultraviolet light and 850 nm, 940 nm infrared light. The response and recovery time were also fast.

FES Journal of Engineering Sciences, 2021

The IP age of networks and services is increasing very quickly. Starting from its VoIP, NGN, and ... more The IP age of networks and services is increasing very quickly. Starting from its VoIP, NGN, and IMS to today's IP services landscape, which includes fixed and mobile high-definition (HD) voice, HD video calling, unified communications (UC), video conferencing, and telepresence, cooperation, instant messaging (IM), and the rich communication suite (RCS). Convergence is one of the most significant current trends in the ICT sector. It has changed the way services are delivered and obscured the distinction between fixed and mobile services. The transition to Next-Generation Networks (NGN) is the most important next phase in the ICT sector's convergence-driven evolution. In the realms of NGN, VoIP, and IMS, there is no PSTN equivalent; instead, there are "IP islands " that locate the total value of an IP service. The next basic step is to expand the arrive of those services across a totally interconnected cross-network premise in order to maximize their overall esteem ...

FES Journal of Engineering Sciences

This paper explains the Universal Software Radio Peripheral (USRP) Experiment results of Spectrum... more This paper explains the Universal Software Radio Peripheral (USRP) Experiment results of Spectrum Sensing Algorithms based on the Energy Ration Algorithm for Cognitive Radio Networks which is latterly suggested in Spectrum observation for OFDM-Based Cognitive Radio Networks by using Energy Ratio Algorithm. This is completed through detecting the variance in the strength of the signal during a variety of confined OFDM subcarriers are used to ensure that the availability of the essential user is facilely discovered. Extensive experiments are performed, in particular, the effects of Signal to Noise Ratio (SNR). This paper observed that the experimental results gave lower detection performance compared to the simulation results. That’s due to existence of other systems which operate on same frequency band of 2.4GHz.

Artificial egg incubators are devices used for incubating and hatching eggs through preservation ... more Artificial egg incubators are devices used for incubating and hatching eggs through preservation the required conditions for fetus development inside the egg. Generally, this paper aims to design and implement an egg incubator system in order to provide adequate conditions for egg hatching and to meet the growing market needs for locally grown white meat at reasonable prices, this system uses software program for controlling the temperature and humidity using the proteus program and Arduino ide. This incubator system is based on two Arduino boards one of which is Arduino nano reads the temperature and humidity values inside the incubator chamber and it is displayed 16x2 display screen when this value is more than the maximum or less, then the bell gives sound to indicate of the exceeded permissible values and the controller processes. It controls the motor that turns the eggs to change their position in order to prevent the embryo from sticking to the shell. the electronic lock that...

2018 5th International Conference on Electrical and Electronic Engineering (ICEEE), 2018

Tin oxide, SnO2 has potential applications in many research areas. Using a chemical vapor deposit... more Tin oxide, SnO2 has potential applications in many research areas. Using a chemical vapor deposition CVD method, high-quality single crystalline SnO2 nanowire (NW) was synthesized on a large scale. Individual SnO2 nanowire based ultraviolet photodetector was fabricated by simply transferring individual nanowire to Pt interdigital electrodes. The photodetector exhibited excellent photoconductive performance in terms of high sensitivity to the ultraviolet 375 nm and infrared 750 nm UV illuminations, fast response and recovery time. It also has perfect stability and reliability, revealing n-type semiconducting behaviour of the tin oxide ultraviolet and infrared photodetecors as an excellent material not only for fabricating highly sensitive photodetecors but also valuable additives that provide new functionality in photodetecors, which will enable the development of high-performance photodetecors.

Received Jan 17, 2020 Revised Mar 25, 2020 Accepted Apr 11, 2020 Cloud computing is a model of so... more Received Jan 17, 2020 Revised Mar 25, 2020 Accepted Apr 11, 2020 Cloud computing is a model of sophisticated computing which has a strong effect on data innovation. Cloud computing offers remote access to shared computerized assets in the stored cloud. Operationally cloud servers utilize Web services that give enormus advantage to the user in a variety of applications such as banking and finance, storage, social networking and email. Cloud computing accomplishes many of the features interrelated to elasticity, ease of utility, efficiency and performance with low cost. There are a number of potential concerns related to security and privacy since the requirement to protect cloud computing expanded, the encryption algorithms play the key part in data and information security systems, on side these algorithms consume a considerable quantity of computing resource. This paper,presenting a new hybrid encryption algorithm emphasising on AES and Enhanced Homomorphic Cryptosystem (EHC) as a ...

TELKOMNIKA Telecommunication Computing Electronics and Control, 2020