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- Activity (1)
- Adaptive neuro-fuzzy (1)
- Al2O3 micron-sized ceramic (1)
- Artificial Neural Network; CCRRP; Modeling; Reformate Yield; Research Octane Number; Simulation (1)
- Ball mill (1)
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- Blaine fineness (1)
- Cement. (1)
- Construction projects; Performance; Covid-19; Crisis (1)
- Continues Inventory model. (1)
- Cu-Ni alloy (1)
- Drilling (1)
- F-PID (1)
- Filter cake (1)
- Frequency stability. (1)
- Functionalized mesoporous silica. (1)
- Fuzzy Inference System (1)
- Geology stress (1)
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- Grinding (1)
- HCl (1)
- HEDTA (1)
- Heat Exchanger Network; Energy Saving; Gases emissions; Mathematical Model; Hydrocracking Unit (1)
- Ilmenite (1)
- Lipase (1)
- Microgrid (1)
- Models; Natural gas; Viscosity; Empirical Correlation; Yemeni gas. (1)
- Oil and gas (1)
- Pantograph Robot; Manipulator Dynamics; Flower Pollination (FP); Nonlinear PID (NLPID); Fractional Order PID (FOPID; Model reference adaptive control (MRAC) ); Fuzzy PD+I control. (1)
- Porosity (1)
- Powder metallurgy (1)
Articles 1 - 15 of 15
Full-Text Articles in Engineering
Cfd Study On Two-Phase Flow Patterns In A Pipe With 90º Elbow In Different Operating Conditions, Hagar Alm-Eldin Bastawissi, Mohammed Ahmed Khafagy, E. A. El Shenawy Prof. Dr., Ahmed M. Salem Dr
Cfd Study On Two-Phase Flow Patterns In A Pipe With 90º Elbow In Different Operating Conditions, Hagar Alm-Eldin Bastawissi, Mohammed Ahmed Khafagy, E. A. El Shenawy Prof. Dr., Ahmed M. Salem Dr
Journal of Engineering Research
Recently, CFD has offered a technological solution for modelling multi-phase flow in which we can make endless simulations with reduced expenses and effort in high accuracy results; we shall also mention that experimental studies have limitations for safety considerations when experimenting with flow in high temperature or pressure values or medium nature as in nuclear or chemical flows.In this paper, we used the ANSYS FLUENT CFD program to simulate the two-phase flow in a pipe to study the effect of attaching a 90-degree elbow fitting to the piping system, seeking to find out the change in the pattern and resulting …
Artificial Neural Network Modeling Applied For Predicting Reformate Yield And Research Octane Number In The Reforming Process, Badiea S. Babaqi, Abdelrigeeb Ali Al-Gathe, Mohd S. Takriff, Hassimi Abu Hasan, Mohammed H. Al-Douh
Artificial Neural Network Modeling Applied For Predicting Reformate Yield And Research Octane Number In The Reforming Process, Badiea S. Babaqi, Abdelrigeeb Ali Al-Gathe, Mohd S. Takriff, Hassimi Abu Hasan, Mohammed H. Al-Douh
Hadhramout University Journal of Natural & Applied Sciences
The prediction model of the continuous catalytic regeneration reforming process was developed for expecting the reformate yield and research octane number using an Artificial Neural Network technique (ANN) to improve the process performance. The proposed model includes temperatures, pressures, and hydrogen to hydrocarbon molar ratio as input parameters while the output of the process represents reformate yield and research octane number. The ANN model was carried out to estimate the process behavior based on the Levenberg-Marquardt Algorithm, which included the nine input parameters, two hidden layers (10-5 neurons), and two parameters as network outputs. The results obtained were that the …
Removing Ilmenite-Based Filter Cakes Using Hydrochloric Acid And Chelating Agent – Experimental Study, Jianping Su, Omar Mahmoud, Hisham A. Nasr-El-Din
Removing Ilmenite-Based Filter Cakes Using Hydrochloric Acid And Chelating Agent – Experimental Study, Jianping Su, Omar Mahmoud, Hisham A. Nasr-El-Din
Future Engineering Journal
Ilmenite is often used as a weighting agent in drilling fluids to increase the fluid density, but the formation of a filter cake on the borehole wall can impact cementing operations and reduce well productivity. To remove the filter cake, various techniques can be employed such as chemical treatments, mechanical methods, or a combination of both. The goal of this study is to evaluate the effectiveness of chemical removal of ilmenite-based filter cake using 7.5 wt.% hydrochloric acid (HCl) and hydroxyethyl ethylenediamine triacetic acid (HEDTA) – chelating agent. The filter cakes were generated using API filter press under harsh conditions …
Reasons Why Oil Reserves Remain Unproductive-A Case Study, Mohamed Al-Saho
Reasons Why Oil Reserves Remain Unproductive-A Case Study, Mohamed Al-Saho
Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث
By studying the production plans of some wells of Al Furat Petroleum Company, the researcher noticed that the rate of production increases to reach a peak and then falls back sharply. The deformation of the area around the well due to the decrease in the formation pressure (after production for a certain period) may have caused a change in the storage properties (porosity, permeability) and thus lower production rate. However, from the point of view of the geomechanics of the oil formation, which includes the study of the stress situation and its effect on the rock tissue, we will notice …
Application Of Pinch Analysis For Energy Saving And Reducing Gas Emissions Based On Mathematical Model In The Hydrocracking Unit, Badiea S. Babaqi
Application Of Pinch Analysis For Energy Saving And Reducing Gas Emissions Based On Mathematical Model In The Hydrocracking Unit, Badiea S. Babaqi
Hadhramout University Journal of Natural & Applied Sciences
Pinch analysis approach of the heat exchanger network in the hydrocracking unit was carried out to save the energy consumption and reduce the gas emissions simultaneously. This method based on mathematical model of the hydrocracking unit for a heat exchanger network using LINGO program to achieve the minimization of environmental impacts and the reduction of energy cost. The presented energy demands for the heat exchanger network are 20.38 MMBtu/hr and 26.52 MMBtu/hr for heating and cooling loads, respectively. The current analysis shows a huge opportunity in order to decrease energy consumption of the hydrocracking process at a minimum temperature difference …
Performance Comparison Of Several Control Algorithms For Tracking Control Of Pantograph Mechanism, Laylaa Mahmoud Eng, Mohamed Shamseldin Dr, Mohamed Sallam Dr, Abdelghany Mohamed Prof
Performance Comparison Of Several Control Algorithms For Tracking Control Of Pantograph Mechanism, Laylaa Mahmoud Eng, Mohamed Shamseldin Dr, Mohamed Sallam Dr, Abdelghany Mohamed Prof
Future Engineering Journal
A sort of parallel manipulator known as a pantograph robot mechanism was created primarily for industrial requests that required high precision and satisfied speed. While tracking a chosen trajectory profile requires a powerful controller. Because it has four active robot links and one robot passive link in place of just two links like the open chain does, it can carry more loads than the open chain robot mechanism while maintaining accuracy and stability. The calculated model for a closed chain pantograph robot mechanism presented in this paper takes into account the boundary conditions. For the purpose of simulating the dynamics …
Relative Rate Observer Self-Tuning Of Fuzzy Pid Virtual Inertia Control For An Islanded Microgrid, Ahmed H. Mohamed, Helmy M. El Zoghby, Mohiy Bahgat, A. M. Abdel Ghany
Relative Rate Observer Self-Tuning Of Fuzzy Pid Virtual Inertia Control For An Islanded Microgrid, Ahmed H. Mohamed, Helmy M. El Zoghby, Mohiy Bahgat, A. M. Abdel Ghany
Future Engineering Journal
Expanding the usage of renewable energy in islanded microgrids leads to a reduction in its total inertia. Low inertia microgrids have difficulties in voltage and frequency control. That affected saving its stability and preventing a blackout. To improve low inertia islanded microgrids' dynamic response and save their stability, this paper presented relative rate observer self-tuning fuzzy PID (RROSTF-PID) based on virtual inertia control (VIC) for an islanded microgrid with a high renewable energy sources (RESs) contribution. RROSTF-PID based on VIC's success in showing remarkable improvement in the microgrid's dynamic response and enhancement of its stability. Moreover, it handles different contingency …
The Effective Strategies For Mitigation The Impact Of Covid-19 On Construction Projects In Egypt, Nora Magdy Essa, Ibrahim Mahdi, Hassan Mohamed Ibrahim
The Effective Strategies For Mitigation The Impact Of Covid-19 On Construction Projects In Egypt, Nora Magdy Essa, Ibrahim Mahdi, Hassan Mohamed Ibrahim
Future Engineering Journal
From the time when the first narrated infections in Wuhan China, in late 2019, COVID-19 has had a substantial peal on human life and health. By the early of 2020, the World Health Organization (WHO) announced the eruption of COVID-19, a public health crisis of international concern. On 11 March 2020, the World Health Organization officially announced COVID-19 a pandemic. The first case was infected in Egypt of covid-19 on Feb 14, 2020 (Gilbert et al., 2020). On 16 March 2020, the Egyptian Government began issuing decisions as preventative courses as part of the country's inclusive plan to cope with …
Estimating The Weights Of Latticed Power Transmission Towers Using Genetic Programming, Ahmed M. Ebid Dr.
Estimating The Weights Of Latticed Power Transmission Towers Using Genetic Programming, Ahmed M. Ebid Dr.
Future Engineering Journal
The recent booming in the power network industry inspired a lot of researchers to develop models to estimate the optimum cost of transmission towers. Unlike previous researches which depended on design the tower from scratch, this research depends on collecting actual database from several projects around the globe and applying the well-known (GP) technique to develop a model to predict the tower weight. The accuracy of the developed formula was about 84%. The developed model could be used in early tender stage or to check design economy.
Effect Of Dispersions Of Al2o3 On The Physical And Mechanical Properties Of Pure Copper And Copper-Nickel Alloy, Samah El-Khatib, A. H. Elsayed, A. Y. Shash, A. El-Habak
Effect Of Dispersions Of Al2o3 On The Physical And Mechanical Properties Of Pure Copper And Copper-Nickel Alloy, Samah El-Khatib, A. H. Elsayed, A. Y. Shash, A. El-Habak
Future Engineering Journal
This paper illustrates the mechanical and physical properties of pure Cu and Cu-Ni (50-50 wt. %) alloy mixed with Al2O3 (1-4 wt. %) as micro-particles reinforcement materials. The attained composite alloy specimens' characteristics were estimated such as microstructure, relative density, electrical and thermal conductivity, hardness, and compression yield stress properties to adjust the suitable optimum percentage of reinforcing material which has the best physical and mechanical properties with different main matrix materials whether pure Cu powder or Cu-Ni mechanical alloy. The micron-sized Al2O3 was added to enhance the mechanical and physical properties of the …
Effect Of Feed Amount And Composition On Blaine And Residue In Cement Mill, Ahmed Mubarak Alsobaai
Effect Of Feed Amount And Composition On Blaine And Residue In Cement Mill, Ahmed Mubarak Alsobaai
Hadhramout University Journal of Natural & Applied Sciences
This study investigates the effect of the amount and composition of cement ball mill feed on Blaine fineness and cement residue. The collected data were obtained using a ball mill for grinding clinker and additive materials (pozzolana and gypsum) at different amounts and composition of feed. The fineness of cement was measured as a specific surface by the air permeability method (Blaine Method) and the residue was calculated as cumulated residue on a 45 microns sieve. It was found that the cement residue increased with an increase in the amount and composition of feed while the Blaine fineness decreased. The …
Activity Performance And Stability Of Functionalized Sba -15 Mesoporous Silica For Lipase Immobilization, Ahmed Mubarak Alsobaai Dr
Activity Performance And Stability Of Functionalized Sba -15 Mesoporous Silica For Lipase Immobilization, Ahmed Mubarak Alsobaai Dr
Hadhramout University Journal of Natural & Applied Sciences
SBA -15 Mesoporous Silica was synthesized and functionalized with aminopropyl-, phenyl- and chloropropyl- using post-synthesis method. The esterification of citronellol with lauric acid in batch mode at 37 ◦C was used to measure the performance of the immobilized enzymes. Characterization of the supports revealed the satisfactory development of mesoporosity with uniform internal channels distribution. Pure SBA-15 showed the typical hexagonal pore and straight channels while the functionalized SBA-15 with triethoxysilane caused pore size to decrease and the distortion of internal channels occurred to subsequently improved the degree of immobilization. The best support among the four was the 3-aminotriethoxysilane functionalized SBA-15 …
Inventory Control Using Fuzzy Inference System And Adaptive Neuro Fuzzy Inference System Under Uncertain Conditions, Ali Abdulmajeed Ali, Arzaq Mohammed Ali Kulaib
Inventory Control Using Fuzzy Inference System And Adaptive Neuro Fuzzy Inference System Under Uncertain Conditions, Ali Abdulmajeed Ali, Arzaq Mohammed Ali Kulaib
Hadhramout University Journal of Natural & Applied Sciences
Supply chain management plays a significant role for running business efficiently, as it integrates management of materials and information flows between supply chain parties Fuzzy Inference System (FIS) and Adaptive Neuro Fuzzy inference system (ANFIS) are expert systems widely used to deal with imprecise and vague data. In this paper FIS and ANFIS are implemented to deal with the uncertainty regarding demand, lead time and inventory level in continuous inventory control system in order to obtain the optimal order quantity and reorder point. These two models are compared with Economic Order Quantity (EOQ) model at the different service level to …
A Modified Model For Prediction Of Gas Viscosities Of Yemeni Gas Fields, Khaled Saeed Ba-Jaalah, Abbas Mohamed Al-Khudaf, Amer Badr Binmerdhah
A Modified Model For Prediction Of Gas Viscosities Of Yemeni Gas Fields, Khaled Saeed Ba-Jaalah, Abbas Mohamed Al-Khudaf, Amer Badr Binmerdhah
Hadhramout University Journal of Natural & Applied Sciences
Gas viscosity is an important physical property that controls and influences the flow of gas through porous media and pipe networks. An accurate gas viscosity model is essential for use with reservoir and process simulators. The present study is concerned with the evaluation of available gas viscosity correlations. The paper also presents new models for predicting gas viscosity for Yemeni gas reservoirs. The most often used different correlations for gas viscosity were assisted for Yemeni gas samples. The limitations of these correlations have been analyzed using Yemeni field data. Calculations are made using 120 experimental data points from Yemeni gas …
Smart Drugs:Improving Healthcare Using Smart Pill Box For Medicine Reminder And Monitoring System, Diaa Salama Abdul Minaam, Mohamed Abd-Elfattah
Smart Drugs:Improving Healthcare Using Smart Pill Box For Medicine Reminder And Monitoring System, Diaa Salama Abdul Minaam, Mohamed Abd-Elfattah
Future Computing and Informatics Journal
Many medical errors are due to the fact that people in charge of patient or elder's medication have to deal with sorting huge amounts of pills each day. This paper consists on the conception, design and creation of a pillbox prototype intended to solve this deficiency in the medical area as it has the ability of sorting out the pills by itself as well as many other advanced features, with this device being intended to be used by hospitals or retirement homes. This medication pill box is focused on patients who frequently take medications or vitamin supplements, or attendants who …