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Altagamoa Al Khames, Main centre of town, end of 90th Street
New Cairo
Egypt
Faculty of Engineering & Technology
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Mahmoud Abdelrasheed Nosier Touny

Basic information

Name : Mahmoud Abdelrasheed Nosier Touny
Title: Professor
Personal Info: Professional Bio Dr. Mahmoud Abd-El-Rasheed Nosier is a professor of mechanical engineering at Future University in Egypt (FUE). He received his Ph.D. from Imperial College, London. He was the vice dean for graduate studies and research, and then vice dean for education and student affairs at the Faculty of Engineering, Ain Shams University. He was also the head of Engine and Automotive Technology Dept. at the College of Technology, Riyadh, Saudi Arabia. In addition to teaching, Dr. Nosier supervised (8) Ph.D. and (19) M.Sc. theses. Dr. Nosier published 38 scientific papers. He attended many conferences and a workshop about Energy Conservation in South Korea. He currently resides in Cairo, Egypt. View More...

Education

Certificate Major University Year
PhD Mechanican Engineering Imprial College - London - England 1980
Masters Mechanican Engineering Ain Shams - Egypt 1974
Bachelor Mechanican Engineering - Power Cairo - Egypt 1968

Teaching Experience

Name of Organization Position From Date To Date
مدينة العبور - مصر معهد العبور العالي للهندسة و التكنولوجيا 01/01/2009 01/01/2010
الرياض -المملكة العربية السعودية الكلية التكنولوجية 01/01/1984 01/01/1989
القاهرة - مصر كلية الهندسة- جامعة عين شمس 01/01/1968 01/01/2011

Researches /Publications

Numerical Modeling of Inverse Jet Diffusion Flames Using Sharp Corners' Nozzles - 01/1

Mahmoud Abdelrasheed Nosier Touny

M. M. Kamal2, M. A. Khalek2, A. M. Hamed2; G. El Gamal*3

01/12/2018

Several studies have suggested the use of sharp corners in the flow field as an approach to enhance mixing of reactants for inverse jet diffusion flames and to generate a fully developed flame having low unburned hydrocarbons. The present paper examines the effect of using nozzles having sharp corners on inverse jet diffusion flames using Computational Fluid Dynamics. Three different nozzle shapes, which are circle, square and triangle, have been examined. Commercial Package ANSYS-FLUENT 16.0 finite-volume solver has been used for the numerical modeling of the reacting flow field using mixture fraction non-premixed model. The numerical model results have been validated with experimental data. The obtained numerical results showed a favorable effect of sharp corners and direct influence of both the number of sharp corners and sharpness of angles on the stability of the inverse flame. The obtained results showed that increasing the number of these sharp corners led to increasing the turbulent kinetic energy at a range of (35 to 50%) accompanied by a decrease in both of peak temperature by about 23% and NOx emissions in good agreement with the experimental results. In addition, decreasing the vertex angle of these sharp corners enhances the mixing rates of reactants and increases vortices by 40%, consequently decreasing both CO and Hydrocarbons (HC) emissions.

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Effect of Sharp Corners’ Nozzles on Inverse Jet Diffusion Flames - 01/0

Mahmoud Abdelrasheed Nosier Touny

M.M.Kamal#2, M.A.Khalek#2, A.M.Hamed#2; G.El Gamal*3

01/09/2018

Reactants mixing has great effect on the combustion efficiency, the use of sharp corners in nozzles is recently investigated as an approach to obtain better mixing conditions for inverse jet diffusion flames and to generate a fully developed flame having low unburned hydrocarbons. The present work examines the effect of using nozzles with sharp corners on inverse jet diffusion flames experimentally. Thisresearchhas been held for reactingflow, using nine different sharp corners nozzles with an approximate equivalent diameter of 12.38 mm. Circular nozzle is adopted as a reference value for comparison. The experiments were held at a constant air to fuel ratio of 50.30.The obtained results showed that increasing the number of sharp corners led to an increase of 38.54 % in the temperature fluctuations. Consequently, there was a reduction of13.78 % in the peak temperature using the cross nozzle and an increase of 30% for the octagon nozzle. The triangular nozzle showed aneffective enhancement in the fuel to air mixing rates such that the flame length was shortened by 50 %.

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Modeling and simulation of a photovoltaic/thermal hybrid system using different back-pipe structures - 01/1

Mahmoud Abdelrasheed Nosier Touny

A. Bayoumi, O. E. Abdelatiff, N. A. Mahmoud,A. S. G. Khalil

01/12/2016

This paper presents a new approach in modelling a photovoltaic/thermal hybrid system based on Finite Element Method (FEM). Comsol Multiphysics, a commercial simulator based on FEM, and MATLAB simulation tools are used to implement this electro-thermal model. An optimization process takes place for the water back pipes regarding its material, shape and pipe diameter for maximum conversion efficiency and rate of heat transfer. In addition to that current-voltage and power-voltage characteristic curves are plotted and the device electrical parameters (open circuit voltage, short circuit current, fill factor) are calculated for different topologies. The thermal analysis takes place through studying the heat transfer effect and plotting the input/output temperature variation for different configurations. Finally the rate of heat transfer is calculated and plotted showing the leading of one structure over the others.

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