Architecture Commons^™

Design And Analysis Of Advanced Low Power Consumption Hybrid Switch With Experimental Verification, A. Hussein, M. Abd-Elazzem, M. Abo-Elsoud, Mahmoud M. Saafan

Mansoura Engineering Journal

This paper presents a hardware implementation for a hybrid switch (HS) that can be used successfully as a fast switch in industrial power factor correction (PFC) panels and for electrical transformers. The main components of HS are a semiconductor switch as Silicon Controlled Rectifier (SCR) or thyristor and a mechanical switch as a relay. In the conventional PFC solution, the correction process is based on traditional electromagnetic contactors so, a huge current will appear during the turn-on operation In addition there is frequently a spark. Due to the parallel technique between SCR and latched relay, the proposed HS can inhibit …

Green Roofs To Treat The Local Dwelling Environment Problems Within Egypt's Vision 2030, Abdullah Badawy Mohammed

Mansoura Engineering Journal

The continuous increase in the building ratio to green areas led to disappearing green spaces, and the vertical and horizontal expansion of dwellings as an urgent demand in cities led to various environmental, social, and economic risks. Hence, the research aims to facilitate the application of green roofs for their positive role in treating these risks and improving the performance of dwelling projects and all buildings according to the climate and local conditions. Therefore, the study addressed the history, concept, and significance of green roofs, besides their benefits on architectural and urban levels, according to the three sustainability pillars and …

A Relativistic Geodetic Approach To Unify The Height System For Africa, Mostafa Ashry, Wen-Bin Shen, Abdelrahim Ruby, Zhang Pengfei, Ziyu Shen, Hussein A. Abd-Elmotaal, Mostafa Abd-Elbaky, Atef A. Makhloof

Mansoura Engineering Journal

This study focuses on the establishment of a unified height system for Africa called AFRUHS (African Unified Height System) by utilizing atomic 8 clocks and clock networks. The International Association of Geodesy (IAG) has 9 long aims to construct an International Height Reference Frame (IHRF), but the lack of accurate and globally harmonized vertical coordinates, particularly in Africa, has posed a challenge. To overcome this, the researchers propose using clock networks to determine geopotential or elevation differences between distant stations by measuring the gravitational redshift (GR) through clock frequency comparisons. The research employs simulation studies using the ACES (Atomic Clock …

Indoor Pedestrian Navigation Using Pdr/Wi-Fi Integration, Ahmad Yhaya, Ehab H. Abdelhay, Mohammed A. H. Abozied, Ahmed Shaaban Samra

Mansoura Engineering Journal

Positioning of pedestrians is a challenging problem. Especially, in case of global positioning system (GPS) signal outage inside buildings. The inertial navigation system (INS) systems are always used to detect the motion of the human body by placing inertial measurement unit (IMU) in a specific part of the human body. However, using IMU alone will not produce proper navigation solution with sufficient accuracy due to gradually accumulated errors of IMU stochastic drift, noise, and state integration with time. Which lead the recent researchers to enhance the performance of indoor navigation systems using aiding sources such as received signal strength (RSS) …

Video Anomaly Detection Using Residual Autoencoder: A Lightweight Framework, Mohamed H. Habeb, May A. Salama, Lamiaa A. Elrefaei

Mansoura Engineering Journal

This paper proposes an efficient lightweight deep spatial residual autoencoder (SRAE) model to detect anomalous events in video surveillance systems. A lightweight network is essential in real-time situations where time is critical. Moreover, it could be deployed on low-resource devices like embedded systems or mobile devices. This makes it a very useful option for real-world situations where there may be a shortage of resources. The proposed network is composed of a 3-layer residual encoder-decoder architecture that is adopted to acquire the salient spatial characteristics representative of normal events in videos. Then, the reconstruction loss is used to find abnormalities, where …

Modular Pandemic Hospitals: A Challenge For Living, Mona Y. Shedid, Eman M. O. Mokhtar

Mansoura Engineering Journal

Over the last several months, the COVID-19 pandemic has globally affected millions of humans and has changed every aspect of our daily life. Hospitals play a major role to combat this pandemic disease however; they are struggling as they are confronted with sudden influx of patients and are jammed to capacity with a lack of available beds and treatment spaces. In managing this health crisis, a rapid resolution concerning our perception and future hospital designs needs to change to save as many lives as possible. According to a pilot study with experts in architecture, four problems during the design of …

Historical Building Information Modelling (Hbim) Integration With Environmental Analysis For Green Rating Systems, Yasmin Mohamed Abd Elhameed Elkwisni, Ahmed Eltantawy Elmaidawy

Mansoura Engineering Journal

Egypt's heritage buildings conservation faces many problems, starting from the stages of restoration of the heritage building to the operation phase of the building. With the growing trend in Egypt to preserve heritage and the trend towards sustainability, the need for a strong management tool that helps to achieve the best performance of the heritage building without compromising its basic form is essential. The term green heritage has appeared recently in Egypt and multiple attempts to achieve sustainability in heritage buildings, so the complex part of the study is the absence of a documentation tool to help for sustainable heritage …

The Role Of Smart Mashrabiya To Provide Daylighting In Office Buildings, Asma Moawad Gad, Hosny A. Dewer, Mai Wahba Madkour

Mansoura Engineering Journal

Mashrabiya is a distinct feature of our architectural legacy and heritage, daylighting is one of the most significant functions of Mashrabiya. The paper aims at studying the impact of Mashrabiya; in particular, the smart Mashrabiya screen façade on daylighting performance and visual comfort. The application of this methodology occurs in two stages: In the first stage, a typical office room with dimensions of 4 x 6 meters, and a 3-meter height is studied to determine the current state of daylighting levels through the suggested eastern, southern, and western openings in the weather of Cairo, Egypt. The second stage examines the …

Outdoor Commercial Buildings: A Cfd Study Of The Impact Of Streets Layout On Airflow., Basma Maged, Bakr Gomaa, Alaa Sarhan

Mansoura Engineering Journal

The impact of the general layout of commercial streets and their orientation relative to prevailing wind direction on urban comfort due to natural ventilation is unknown. To study the natural airflow pattern in the commercial street mall, this research investigates the impact of different building layouts on airflow characteristics. To do this we conduct a parametric CFD simulation for 12 simulation cases, in which the commercial street layout changes to include secondary streets in four different cases. All cases are also subjected to three different wind directions. The study highlights that different wind orientations can significantly impact pedestrian comfort in …

Urban Transportation Strategy As Urban Sustainable Indicator Frameworks Study Of Masdar City, Abu Dhabi, Rania Badawy Shokry

Mansoura Engineering Journal

— New models are being created for the planning and administration of sustainable cities as the worldwide trend toward urbanization continues. To create Masdar City, a carbon-neutral, zero-waste city that would showcase cutting-edge sustainable city architecture, the Abu Dhabi government declared in 2006 that it intended to invest $22 billion in its construction. This study aims to focus on one of the indicators of the sustainability of cities, which is sustainable transport, and to clarify how sustainable transport can be translated from Theory to Practice, by standing on the concept of sustainable cities and sustainable transport that works to enhance …

Computational Fluid Dynamics Investigation Of Flow Through Pneumatic Control Valve, Wael Elmayyah

Mansoura Engineering Journal

Low-cost on-off pneumatic directional control valves are widely used with digital control circuits to control the position or the speed of pneumatic actuators. These valves have a limited flow capacity that hinders the system fast response. Therefore, deeper understanding of the internal air flow through the valve and its interaction with valve geometry will allow further performance improvement according to the required application.

In this paper, a Computational Fluid Dynamics (CFD) model for a low-cost internal pilot, electrically operated pneumatic 3/2 directional control valve has been developed to investigate the effect of the valve's geometry on the valve's outlet flow …

Uses Of Geographic Information Systems And Remote Sensing To Study The Natural Resource Management Of The Red Sea Governorate, Egypt, Shrouk Galal, Fawzi Hamid Zarzoura, Mahmoud El-Mewafi

Mansoura Engineering Journal

The Red Sea governorate is rich in natural resources that create challenges for Egypt's future economy and growth. The right ways must be found to manage and discover these resources without wasting them. Remote sensing is one of the best methods used in the development of natural resources. It is based on measuring electromagnetic ray reflections from deep-seated or dispersed natural resources, and these images are processed uniquely for a variety of applications, including the detection of minerals, making land cover maps, shifting rocks, and monitoring of geological distortions. The altered rocks that existed in the study area were identified …

Usage Of Virtual Reality Techniques In Revival Of Heritage Religious Buildings (Study Examples From The Unesco Tentative List In Egypt), Reham Ezzat Elsayad, Medhat A. Samra

Mansoura Engineering Journal

The research focuses on the architectural documentation of religious buildings with architectural value and the role of this process in reviving heritage values. Every architectural detail had told us a story which is collected as the identity of the city. The fragility of these buildings and their artifacts, natural disasters, climate change, visitors' impact and lack of information usually leads to the inaccessibility of these buildings. But, due to the historical and touristic value of the religious buildings, the documentation process become necessary to benefit both visitors and researchers by availability and ease of access to information.

The traditional documentation …

A Synthesized Dual-Polarized Planar Slotted Antenna Array For Sar Sensors, Ahmed E. Gohar, Haythem H. Abdullah, Mohy El Din Abo El-Soud

Mansoura Engineering Journal

A synthetic aperture radar (SAR) sensor antenna is the main concern in this research work. The antenna specifications are settled according to the link budget of a project funded by the Egyptian Space Agency. The antenna should achieve a 30 dBi gain and an SLL of less than -27 dB with a low-profile and simple structure. The proposed antenna is an array of 16 x 18 planar elements that based on microstrip technology. The 16 x 18 antenna array consists of 16 linear antenna arrays of 18 elements each. Each element of the antenna array has two orthogonal slots with …

Experimental Study Of Photovoltaic Performance Under A Compound Parabolic Solar Concentrator With A Nanofluid Spectral Filter, O. Elharoun, M. Tawfik, Ibrahim I. El-Sharkawy, E. Zeidan

Mansoura Engineering Journal

The spectral splitting technique splits the sun's spectrum into two pieces to save photovoltaic cells from overheating. The first component is instantly converted into electricity, while the second is used to generate heat energy. Since nanofluid simultaneously serves as a heat transfer liquid and a spectrum splitter, several investigations have demonstrated that it is a very effective liquid-based filter. This work presents a novel PV/T design incorporating a compound parabolic concentrator (CPC) and a ZnO-water nanofluid filter over the PV cell. In this work, different ZnO concentrations, such as 50, 100, 150, and 200 ppm, were tested to assess their …

New Dialogue Between Old Crafts And Historical City “Case Study: The Historical Fez Factory In Fowah”, Dalia Shebl

Mansoura Engineering Journal

Traditional crafts are playing an important part of local identity in the city … Nowadays more efforts are being made to preserve them and establish a base and anchor point of economic and touristic development in the Egyptian cities. the paper clarifies the heritage values could evolve in a future through present one of the oldest site in fowah has a characteristic location of traditional crafts therefore it played a great role in contributing and developing many crafts in the other Egyptian cities using a Past-Present-Future framework. The research followed an historical and theoretical methodology for documentation then analytical studies …

Zero-Sequence Current In Cable Systems: A Study, Shimaa A. F. Salem, Rabab R. M. Eiada, Ebrahim A. Badran

Mansoura Engineering Journal

Large zero-sequence current is not a new phenomenon for cable bus duct systems; the question is what influences its magnitude. It was found that the zero-sequence currents were circulating between different circuits in the cable system and that they were being generated by induction between phases in the same cable route. It was determined that the zero-sequence currents could be greatly reduced in a twin circuit by symmetrical configuration of the cables. However, in a four-circuit system, no significant reduction could be achieved even by the symmetrical configuration. Therefore, in this paper, this phenomenon will be analyzed and discussed. ATPDraw …

Energy Conservation In The Design Of Sports Facilities: A Case Study Of The Conservation Of Photovoltaic Energy Used In Lighting The Stadium Field, Nader Ibrahem Ismael

Mansoura Engineering Journal

The research aims to study the principles and ideas of energy conservation in the design of sports facilities using simulation programs and evaluation systems, which is used to improve the environmental performance of the building to reduce energy sources. As well as the experimental study aims to Using the simulation program (DIA LUX) to calculate the lighting masts height and angle of the headlights for the football stadium for Leading the best spread of lighting on the stadium field and thus achieving the idea of energy consumption efficiency

A Methodological Framework For Setting Up The Urban Observatory For Informed Cities (Case Study: El Tor City, South Sinai, Egypt), Eman Metwally, Enas Samir

Mansoura Engineering Journal

Cities are now more than ever seen as crucial to addressing global issues. They have been repeatedly identified as key locations to address the interrelated environmental, health and social issues affecting our increasingly civilized planet. Many global agreements and frameworks, including the 2030 Agenda for Sustainable Development (2015) and the New Urban Agenda (2016) and developing data and information, have certainly emerged as an increasingly critical element in how we think, experience and ultimately manage cities. We produce more urban data than ever before, through a variety of formal and informal knowledge mobilization channels, but this is not always accessible …

Converting A Nonlinear Differential Equation With Arbitrary Orders To A System, E. A. A. Ziada

Mansoura Engineering Journal

In the research, the Adomian decomposition method will be applied to get the solution of differential equations of arbitrary orders by transforming them into systems. The existence of a unique solution will be proven. The series solution converges is discussed, and more than the error is estimated. Some applications will be solved, which are the Basset problem and the Bagley-Torvik equation.

Effects Of Power Stations Emissions On Air Quality In Kuwait, Abdullah F.M. Al-Rukaibi, I. G. Rashed, M.M. El-Halwany, O. Hamed

Mansoura Engineering Journal

The research describes the Gaussian plume model used to estimate the concentration of pollutants emitted from power plants and dispersed in the atmosphere. The object of the research is to compare the air quality between areas which is near to source station and away from the source station. The research estimates the concentrations of pollutants released from six electric power stations in Kuwait using the Gaussian plume model. A power plant with a stack height of 100 m, stack diameter of 2 m, and an emission rate of 1 kg/s for each station is considered. The Pasquill-Gifford stability categories are …

Multi-Objective Approach For Optimizing Buildings’ Forms And Kinetic Façades Systems In Office Buildings, Randa Mohamed Ahmed Mahmoud

Mansoura Engineering Journal

Due to the critical reliance of office buildings on wide-glazed areas for providing daylight which increases heat gain, the kinetic façades (KF) have been innovated to improve buildings’ envelopes. This study proposed a parametric computational methodology to optimize building forms and the KF system of office buildings cooperatively. The computational methodology was implemented by using Rhinoceros software and consists of 4 phases. The main aim is to improve the annual energy consumption, average daylight factor, and payback period, and the results concluded a significant improvement after applying the KF system by 1050.3 kWh/m2, 17.34%, and 6.8 years, respectively. Building parameters …

Environmental Evaluation Of The Alternative Housing Environments Of Slums, Aya Abd El-Maksoud Maan, Alaa Mohamed Shams, Mohanad Ali Fouda

Mansoura Engineering Journal

The government has built many similar units all over Egypt, especially Cairo, without considering the differences between residents, studying the areas from which they came, or preparing the neighborhoods they moved to, and they did not follow Vision 2030, which stipulates achieving sustainability in modern urban societies. The research aims to prepare alternative housing areas to be environmentally sustainable and to provide guiding principles for the design of alternative residential neighborhoods. The researcher used the applied approach to the Asmarat neighborhood as one of the built-up neighborhoods to solve the problem of slums in Cairo and was evaluated by the …

Power System Stability Enhancement Utilizing Phasor Measurement Units At Transient And Steady State, Moamen M. Mousa, Mahmoud S. Kandel, Sahar S. Kadah, Mohamed F. Kotb

Mansoura Engineering Journal

Abstract—Efficient power system stability monitoring plays a vital role in recent electric grid technologies. It supports operators at control centers to reduce overloading on weak elements and prevent power system from collapse. In this paper Phasor Measurement Units (PMUs) technology has been used for real-time measurements that can obtain fast and accurate data samples from the electric network. The system stability responses during steady state and transient conditions have been studied based on the data driven from PMUs. The proposed study has been applied on WSCC 9-bus system. Test system Simulink has been modified to include the required PMUs and …

Green Walls As A Tool To Achieve Thermal Comfort In University Spaces Simulation Study Using (Design Builder) Program, Noha Roshdy Mohamed Mahmoud Atia, Mona Elwazier, Esraa Elazab

Mansoura Engineering Journal

The research introduces a study on the efficiency of green walls in achieving thermal comfort in educational interior spaces. Green walls can reduce energy consumption and carbon dioxide emissions through reducing heating and cooling loads. The research methodology depends on measuring the efficiency of green walls by using design builder a software simulation tool, to assess the thermal comfort in an educational interior space. Results show that energy decreases by 34% and carbon dioxide decreases by 30%.

Sustainable Urban Development Approach In Residential Building, Ayah Mohamed Ramadhan, Ahmed Noor Eldin

Mansoura Engineering Journal

Globally, Due to its damaging effects on energy, consumption, health, wellbeing, and air pollution, the urban warming phenomenon is gaining worldwide awareness from scientists to planners and legislators. In order to achieve the equation and reach an energy-saving urbanization, we must reconcile with the environment by providing a sustainable urban design that works to rationalize energy and reduce the depletion of resources and reach a sustainable urban environment by providing thermal comfort requirements. In order to attain three key characteristics that are related to one another—thermal comfort, reduced energy consumption, and reduced CO2 emissions—the study will examine a variety of …

Modified Hcm Method For Delay Estimation At Unsignalized T- Intersections: A Case Study From Delta Region, Egypt, Ahmed Mohsen Geweda, Sayed A. Shwaly, Usama Elrawy Shahdah

Mansoura Engineering Journal

This study proposes a modified gap acceptance method to estimate control delay at unsignalized intersections in Egypt. The Highway Capacity Manual (HCM) method for estimating control delay at unsignalized intersections assumes that all lower-ranking movements yield completely to higher-ranking movements. However, this assumption may not be valid in Egypt, where drivers in lower-ranking movements sometimes violate right-of-way. The proposed method introduces an adjustment factor to account for the amount of real priority that higher-ranking movements actually get from lower-ranking movements. The adjustment factor was developed based on data collected from three un-signalized T-intersections from Mansoura and Damietta cities in Egypt. …

Shear Behavior Of Reinforced Concrete Shallow Beams With Lightweight Infill, Ahmed Mohamed Tahwia, Mohamed El Saied El-Zoughiby, Mohammed Hany Hassan

Mansoura Engineering Journal

This paper presents the effect on the shear behavior of reinforced concrete shallow beams due to infilling by using the Autoclaved Aerated Concrete (AAC) as a lightweight material to decrease the weight of the beams. Three reinforced concrete beams were fabricated in the lab to study the effect of infilling the beams with AAC blocks. The first beam is a solid or reference beam, SB01. The second beam was in filled by four AAC blocks having 100mm thick ribs, SB02. The last beam was also in filled but with eight AAC blocks having 40mm thick ribs, SB03. Based on the …

Nanotechnology As Building Materials And Its Impact On The Quality Of Residential Buildings, Shekha Alrasheed, Hatem El Shafie

Mansoura Engineering Journal

A modern technology called "nanotechnology" has emerged that seeks to environmental design through the use of new technologies and advanced scientific methods in the construction of contemporary architectural edifices. The research problem is the underutilization of nanotechnology in building materials for residential buildings due to the lack of knowledge of the benefits and cost of this technology. The importance of the study lies in the use of building materials based on nanotechnology with new properties and high performance that address the problems in current building materials so as to apply sustainability standards and provide efficiency for residential buildings to suit …

Developing The Egyptian Village As A Smart Village In Implementation Of The Sustainable Development Goals) Review Of The Executive Plan For The "Hayah Karima" Initiative – Egypt), Aliaa Elsaied Kamel Elmallah, Rasha El Saied Mohamed Mohamed

Mansoura Engineering Journal

There are about 80 percent of the world's poor living in rural areas, so villages should achieve the sustainable development goals (SDGs) through digital transformation, So the research problem is how does the concept of a smart village affect sustainable development and achieve quality of life, that improve the efficiency of resource use, local autonomy, access to facilities and responsibility to build a good society. The research assumes access to the sustainable development of the Egyptian village through the concept of the smart village. The research studied cases of Egyptian and international villages to monitor good practices for smart sustainable …