Criteria and Standards for Healthcare Buildings Design through Sustainability Criteria.
Ahmed
El Deep
Demonstrator., Kafr El-Sheikh University.
author
Sherif
Sheta
Associate Professor., Architectural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
author
Wael
Moustafa
Assistant Professor., Architectural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
author
text
article
2021
eng
Increased interest in providing health care services at all levels through the understanding of modern societies of the importance of good health of the individual and society health is as defined by the World Health Organization "WHO" World Health Organization is a state integration between the three elements physical, psychological and social" , In the past, the idea of health care facilities and hospitals rely on something to offer the services of the hos[ital., but the modern from New Paradigms. It is based on the requirements of the patient and confort. We find in the new model for building health care interaction and integration with the socialaspects and technological methods for the climate by the architects on the one hand and service providers of health and hospital administrators, specialists the other hand, we find that the direction of architecture in healthcare projects is key to building a healthy take into account the environmental and economic, social, and achieve higher efficiency performance over the life of the building, hence the idea of the hospital sustainable ad that rely on high-tech industry.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2021
1
17
https://bfemu.journals.ekb.eg/article_199175_835115ca73774c84f63eca05771fea4b.pdf
dx.doi.org/10.21608/bfemu.2021.199175
Urban Areas Development through the Process of Environmental Impact Assessment.
Riyadh
Alshamiri
Assistant Professor., Faculty of Engineering and Architecture., IBB University., Yemen
author
text
article
2021
eng
The research aims to describe and analyze the environmental impact Assessment of urban areas, and to identify deficiencies that emerges from the environmental impact Assessment process, and access to the expected solutions of Environmental Impact Assessment System in the urban areas development. To achieve the aim of research and through the analytical method, the search begins by giving a theoretical background for environmental impact Assessment and the urban areas development. Then identify the gaps of environmental impact Assessment process in the urban area development and expected solutions from this process. Eventually, the paper provides a number of findings and recommendations for the urban area development through the process of environmental impact Assessment. The most important recommendations are to establish a law governing national environmental policy in urban areas to put regulation implementing for the projects classification in urban areas
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2021
18
30
https://bfemu.journals.ekb.eg/article_199178_2b27e8656bc6b47d9e5ab04cdf7aa9eb.pdf
dx.doi.org/10.21608/bfemu.2021.199178
A Mathematical Model for Predicting the Performance of the Solar Energy assisted Hybrid Air Conditioning System (SEAHACS) with One-Rotor Six-Stage Rotary Desiccant Cooling System.
A.
Elzahaby
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University
author
A.
Kabeel
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University
author
M.
Bassuoni
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University.
author
M.
Ahmed
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University.
author
text
article
2021
eng
A mathematical model for predicting the performance of solar energy assisted hybrid air conditioning system (SEAHACS) is presented. The honeycombed silica gel desiccant wheel was used in this study, one-rotor six-stage rotary desiccant cooling system, in which two-stage dehumidification process, two –stage pre-cooling process and two-stage regeneration process are realized by only one wheel. Three air streams are involved in the present system. The mathematical model has been validated with the experimental data. As the key operating and design parameters, the range of regeneration air inlet temperature from 65-140 oC, area ratio of process air to generation air change from 1-3.57, regeneration air inlet velocity from 1.5-5.5 m/s have been examined for a range of rotation speed from 6-20 rev/h. the optimization of this parameters is conducted based on the moisture removal capacity D, relative moisture removal capacity, dehumidification coefficient of performance and thermal coefficient of performance. At last, the influences of these main parameters on optimal rotation speed are discussed
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2021
1
23
https://bfemu.journals.ekb.eg/article_199158_9490d9ea20ce1850afa9c7ec3a4c178f.pdf
dx.doi.org/10.21608/bfemu.2021.199158
Characteristics of Plan Poiseuille Flows under the Effect of Electro-Magnetics Fields.
A.
El-Zahaby
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University., Egypt.
author
M.
Bassiouny
Mechanical Power Engineering Department., Faculty of Engineering., Menofia University., Egypt.
author
A.
Khalil
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University., Egypt.
author
E.
El-Shenawy
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University., Egypt.
author
E.
El-Agouz
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University., Egypt.
author
M.
Amro
Mechanical Power Engineering Department., Faculty of Engineering., Tanta University., Egypt.
author
text
article
2021
eng
The fully developed flow between two parallel plates in an electrically conducting fluid under the acting of electromagnetic fields is solved analytically. The value of flow rate. Velocity. Share stress and skin friction coefficient at the plates are derived. It is noticed that the electromagnetic forces are able to derive the flow in the absence of the pressure gradient also; the flow characteristics are largely changed when the electromagnetic fields are applied in the presence of the pressure gradient. The change in velocity. Shear stress and skin friction coefficient are represented as a function of the geometrical ratio between the channel height and the electrode width h/a, electric current density and strength of magnetic field.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2021
26
43
https://bfemu.journals.ekb.eg/article_199156_eb17eeceadd54ec740192466ad8fb18c.pdf
dx.doi.org/10.21608/bfemu.2021.199156
Electromagnetohydrodynamic mixed Convection Fluid Flow between Two Parallel Plates.
A.
El-Zahaby
Mechanical Power Engineering Department., Faculty of Engineering., Tanta.
author
M.
Bassiouny
Mechanical power Engineering Department., Faculty of Engineering., Menofia University., Egypt.
author
A.
Khalil
Mechanical power Engineering Department., Faculty of Engineering., Tanta University., Egypt.
author
E.
El-Shenawy
Mechanical power Engineering Department., Faculty of Engineering., Tanta University., Egypt.
author
E.
El-Agouz
Mechanical power Engineering., Faculty of Engineering., Tanta University., Egypt.
author
M.
Amro
Mechanical power Engineering Department., Faculty of Engineering., Tanta University., Egypt.
author
text
article
2020
eng
A numerical model of the flow of electrically conducting fluid -salt water- (pure water+25% by weight NaCl) under the influence of an imposed electric and magnetic fields is analyzed using computational fluid dynamic techniques. A finite volume method is used to solve the Navier-stokes equations with the effect of Lorentz force and energy equations for the fluid variables. The Vorticity stream function formulation is applied to discrete the model equations. The algebraic equations are solved by using the Gauss-elimination method. The Lorentz force is obtained by solving the Maxwell's equation and ohm's law via the same finite volume technique. The model equations are solving using a self written FORTRAN CODE, which solve the nonlinear algebraic equations. Velocity profiles for a two dimensional flow are predicted for a different Hartmann's numbers at a constant Reynolds's number, also at a different Reynolds's numbers at a constant Hartmann's number.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2020
44
65
https://bfemu.journals.ekb.eg/article_120628_45f4bd51f32b3fa86c324465de53d026.pdf
dx.doi.org/10.21608/bfemu.2020.120628
An Experimental Investigation of Natural Convection Heat Transfer through Horizontal Open Ended Four Sided Tubes with Different Aspect Ratios.
Eldesouki
Eid
Mechanical Department., Faculty of Industrial Education., Suez University., Suez., Egypt.
author
Mohamed
Omara
Mechanical Department., Faculty of Industrial Education., Suez University., Suez., Egypt.
author
Ahmed
Badawy
Teacher., Industrial Technical School., Zagazig., Egypt.
author
text
article
2020
eng
Experimental investigation of free convection heat transfer from the inside surface of horizontal four sided tubes of different aspect ratio with a uniformly heated surface is presented. The aspect ratios is changed from 1 to 0.25. The experiments covered a range of Rayleigh number, Ra from 2.02x105 to 4.6×106. The local and average heat transfer coefficients and Nusselt numbers are estimated for different aspect ratios at different Rayleigh numbers. The experimental results showed that the aspect ratio has a significant effect on the local and average heat transfer coefficients. It is noticed that temperature distributions increase with the increase of axial distance from both ends of the tube upto a maximum value at the middle of the tube. Also, the local Nu increases with the increase of aspect ratio at the same axial distance. The results obtained were correlated with the available data for the horizontal four sided tubes.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2020
66
78
https://bfemu.journals.ekb.eg/article_120907_566002666d8229034dcd00227f2e9662.pdf
dx.doi.org/10.21608/bfemu.2020.120907
Study of Heat Transfer and Pressure Drop for a Condenser Tube with Inserted Rings.
M.
Awad
Mechanical Power Engineering., Faculty of Engineering., Mansoura University., Mansoura., Egypt.
author
Emad
El-Nigiry
Assistant Professor., Department Mechanical Power Engineering., Faculty of Engineering., El-Mansoura University., Egypt.
author
M.
Hassan
Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Egypt.
author
text
article
2020
eng
Forced convection heat transfer and pressure drop for cooling water which pass into condenser tubes is investigated numerically and experimentally, The study is dependent on the effect of the rings with different inner diameter placed inside the tube at different distances. The outer surface of the tested condenser tube is heated by saturated steam at atmospheric pressure. By using one integrated a computational fluid dynamic software (CFD) is the fluent theoretically investigated. The software is used to solve the governing equations for flow; which are continuity equation, momentum equation and energy equation, the distribution of the heat transfer coefficient and the pressure drop along tube length, can be obtained and consequently the average heat transfer coefficient. The theoretical study was performed for the cases of a tube without rings and with rings. To perform the experimental study, an experimental apparatus is designed and constructed .It consists of a copper tube ,where the cooling water p < strong>asses inside it and the outer surface of the tube is heated by saturated steam at atmospheric pressure. The apparatus is equipped with the required sensors to measure the tube outer surface temperature. flow rate and pressure drop. The experimental and numerical results showed that the use of rings increasing the heat transfer coefficient rather than that of tube without rings and the rings of inner diameter 8mm increase average heat transfer coefficient up to 66%. There is an acceptable agreement between the numerical and experimental results.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2020
79
97
https://bfemu.journals.ekb.eg/article_121010_5348328a1d35c9c0fbd06bf6e7b5cb8a.pdf
dx.doi.org/10.21608/bfemu.2020.121010
Global Solar Radiation Estimation in Mansoura, Egypt.
Helmy
Gad
Professor of Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
author
Safya
El-Gayar
Agric. Eng. Res. Inst., A. R. C, Giza, P.O. 256 egypt
author
text
article
2020
eng
Solar radiation data are not easily available in many places over the world. Measurements of solar radiation in Mansoura either on a horizontal or tilted surfaces are too sparse to meet demand for scientific research and applications in agriculture and engineering. Estimation of daily global solar radiation is essential in Delta zone, since it is one of the most crowded areas and most agriculture and industrial activities are concentrated at this area where no solar observatory exist. Therefore, in this work, the hourly average total solar radiation data on horizontal, tilted (30° facing south) and normal surfaces is measured and compared with that data computed the clear sky model and the data recorded from the National Aeronautics and Space Administration (NASA) website [1]. Based on the MATrix LABoratory (MATLAB), a computer program has been developed to solve the clear sky model governing equations. The obtained results revealed that, the predicted solar radiation on horizontal, tilted, and normal surfaces were validated well with that measured. Results which are given in graphical form show that the data obtained from the clear sky model and that obtained from NASA website can be used as a reasonable and quick method for estimating the solar radiation when actual measurements are not available.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2020
98
116
https://bfemu.journals.ekb.eg/article_120908_5d53fc75abf4e71c8db2641af92bcbb9.pdf
dx.doi.org/10.21608/bfemu.2020.120908
Investigation and Analysis of Nanofluids Thermal Conductivity Models.
Mostafa
Awad
Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
author
H.
Mansour
Department of Mechanical Power Engineering, Faculty of Engineering, Mansoura University, Mansoura, Egypt
author
H.
Abdel-Salam
Dar Al-Handasah Consultants, Cairo., Egypt.
author
text
article
2020
eng
The thermal conductivity is the key role in presenting the unique thermal properties of nanofluids. The literature involves many theoretical models that investigate and estimate the thermal conductivity of nanofluids. The main goal of this work is to determine the most applicable model. To achieve this goal, the most famous ten theoretical models have been selected, analyzed and compared with the available experimental data. From this comparison, two models due to Chon et al. [20] and Kumar et al. [23] have been chosen as most applicable models. Based on this analysis and comparison, a new theoretical model dealing with thermal conductivity of nanofluids has been drawn. Testing this proposed model via the available experimental results, shows a more agreement with these results compared with other models.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2020
117
133
https://bfemu.journals.ekb.eg/article_120910_e27fe112e3816c20eee0343ce2613e6b.pdf
dx.doi.org/10.21608/bfemu.2020.120910
Monitoring Changes of Damietta-Port Said Coast Using Remote Sensing and Gis.
M.
El Rakaiby
Professor of Remote Sensing., Nuclear Energy Authority
author
A.
El Nimr
Professor of Structural Engineering Department., Faculty of Engineering., El-Mansoura University., Egypt.
author
M.
Mewafi
Head of Public Work Department., Faculty of Engineering., El-Mansoura University., Egypt.
author
G.
El Kader
Researcher Student., Faculty of Engineering., El-Mansoura University., Egypt.
author
text
article
2020
eng
Shoreline erosion has been a major problem in the Nile Delta since the full damming of the Nile River in 1970, especially along the two Nile promontories (Rosetta and Damietta). Since that construction of the Aswan High Dam in 1964, there has been concern that the Egyptian coastline . El Kader along the Mediterranean Sea would suffer from increased erosion. The dam effectively stopped the supply of sediment carried by the River Nile to the Mediterranean and so left the coastline without shore building capability. The main goal of this study is to assess the coastal hazards that may occurred due to shoreline changes (erosion or / and deposition). Through analysis of four satellite images from the multi-spectral scanner (MSS), thematic mapper (TM), The Enhanced Thematic Map < /span>per Plus (ETM+) sensors and the Modis sensor were utilized in order to estimate the spatio-temporal changes that occurred in the shoreline between Damietta Nile branch änd Port-Said between 1975 and 2011.Image processing applied in this study included geometric rectification; atmospheric correction; and filtering processes on-screen shoreline digitizing of the four satellite images for tracking the shoreline position between Damietta promontory and Port Said. Results showed that shoreline between Damietta and Port Said is characterized by appreciable erosion and accretion the coastal erosion was severe near Damietta promontory and decreased eastward, while accretion was observed near Port-Said
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2020
1
17
https://bfemu.journals.ekb.eg/article_120992_12280c2fba48b74c39d47a980c84df3c.pdf
dx.doi.org/10.21608/bfemu.2020.120992
Prediction of Elastic Properties of Short Fibers Reinforced Composites.
Ebraheem
Shady
Textile Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura 35516., Egypt.
author
text
article
2020
eng
Short fiber reinforced polymer composites (SFRC) are used widely in industrial applications. It is imperative to have analytical expression that is able to predict elastic properties of composite materials instead of manufacturing and testing the materials. Having such expression saves efforts and time when designing composite materials. In addition, the analytical expression will enable examining the effects of some parameters on the elastic properties of composite materials. In this work, an analytical model is adopted to predict elastic properties of short fiber reinforced polymer composite. The fibers are considered aligned and randomly oriented in the matrix. The model is based on the modified Mori-Tanaka approach along with a randomization procedure. The model is verified by comparing its results to experimental data from literature. The model results that consider the random orientation of fibers agree well with the experimental data. Thereafter, the model is used to perform a case study to elucidate the effect of fiber volume fraction and fiber's aspect ratio on the elastic properties of the composite material. The results show that increasing fiber volume fraction leads to nonlinear increase in both elastic and shear moduli and non linear decrease in Poisson's ratio. The study shows insignificant effect of changing fiber's aspect ratio on the elastic properties of composite materials.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2020
1
10
https://bfemu.journals.ekb.eg/article_121003_ad1e5ae25f154d806130235bbdf8045d.pdf
dx.doi.org/10.21608/bfemu.2020.121003
Classification of Sleep Apnea Events Using Nasal Air Flow (NAF) Signals.
Fatma
Abdel-Meguid
Electronics and Communications Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
author
Fatma
Abou-Chadi
Electronics and Communications Engineering Department., Faculty o Engineering., El-Mansoura University., Mansoura., Egypt.
author
S.
Loza
Cairo Center for Sleep Disorder., Cairo., Egypt.
author
text
article
2021
eng
Detecting and diagnosing different types of Sleep Apnea (Obstructive, Central and Hypopneaisone of the major tasks in sleep medicine. Clinically, analyzing Nasal Airflow (NAF) signal is the most sufficient and direct reliably effective method for the automatic detection of Sleep Apnea events by checking the airflow amplitude reduction. This paper investigates and compares the performance of three classifiers: a kohen self-organizing map (SOM), Adaptive Neuro Fuzzy Inference System ?(ANFIS) AND Hidden Markov Model (HMM) for the classification of Sleep apnea events. The results have shown that the highest correct classification rate is 95.7% when using HMM with order 13.
MEJ- Mansoura Engineering Journal
Mansoura University, Faculty of Engineering
1110-0923
37
v.
4
no.
2021
1
10
https://bfemu.journals.ekb.eg/article_199195_d41d8cd98f00b204e9800998ecf8427e.pdf
dx.doi.org/10.21608/bfemu.2021.199195