Bulletin of the Faculty of Engineering. Mansoura University最新文献

Experimental Investigation of Natural Convection Heat Transfer Through Rectangular Enclosure Filled with TiO2-Water Nanofluid. (Dept. M. ( Power )) 二氧化钛-水纳米流体填充矩形壳体自然对流换热实验研究。(动力学系硕士)

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-07-15 DOI: 10.21608/bfemu.2020.103097

Amro M. Abou Elenein, A. Sultan, H. Mostafa, A. Hegazi

{"title":"Experimental Investigation of Natural Convection Heat Transfer Through Rectangular Enclosure Filled with TiO2-Water Nanofluid. (Dept. M. ( Power ))","authors":"Amro M. Abou Elenein, A. Sultan, H. Mostafa, A. Hegazi","doi":"10.21608/bfemu.2020.103097","DOIUrl":"https://doi.org/10.21608/bfemu.2020.103097","url":null,"abstract":"Experimental investigations on natural convection heat transfer have been carried out inside rectangular enclosures filled with TiO2water nanofluid. Two enclosures are used with two different aspect ratios of 1 and 2 and the modified Rayleigh number based on the enclosure height in the range 9 * 5 10 Ra 10   . The bottom surface of the enclosure is heated using a constant heat flux in the range from 40 to 6600 W/m while the upper surface is cooled by forced air stream, and side walls are insulated. The heat transfer rate for aspect ratio, AR=2, is higher than that for the aspect ratio A= 1. The average temperature of hot surface decreases with the increase of nanoparticles volume concentration,  , up to minimum values at  =0.8 % and then increases with further increase in  . The average hot surface temperature increases with the increase in the modified Rayleigh number. The heat transfer rate increases with the increase of the modified Rayleigh number up to maximum values of about 8 * 10  Ra and then decreases with further increase in * Ra . The highest value of the average Nusselt number is located at  = 0.8%. A general correlation is obtained for calculating the average heat transfer rate as a function of modified Rayleigh number and nanoparticles volume concentration.","PeriodicalId":232733,"journal":{"name":"Bulletin of the Faculty of Engineering. Mansoura University","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125213736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Study on the Effect of Vegetable Based Cutting Fluid and Mineral Oil on Cutting Forces and Surface Roughness during Turning Operation. (Dept. M ( Production ) ) 植物基切削液和矿物油对车削过程中切削力和表面粗糙度影响的比较研究。(M部(制作))

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-07-12 DOI: 10.21608/bfemu.2020.102407

I. Elewab, A. Galal, N. Saker, A. A. E. Tawabd

引用次数: 0

Characterization of collapsible soils due to saturation (Dept. C (structural) ) 饱和湿陷性土壤的特性(C部(结构))

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-07-09 DOI: 10.21608/bfemu.2020.101864

A. El-Masry, A. Ibrahem, M. El-Miligy, M. Ashour

引用次数: 0

The Continued Development of Architects’ Professional Skills in Egypt (Dept. A ) 埃及建筑师专业技能的持续发展(A部)

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-07-09 DOI: 10.21608/bfemu.2020.101880

A. Mamdouh, S. Sheta, Saad Makram

{"title":"The Continued Development of Architects’ Professional Skills in Egypt (Dept. A )","authors":"A. Mamdouh, S. Sheta, Saad Makram","doi":"10.21608/bfemu.2020.101880","DOIUrl":"https://doi.org/10.21608/bfemu.2020.101880","url":null,"abstract":"The Architecture career is very important, not only for being the producer of the architectural environment we live in, but also for being the creator of the architects mind and character, and it effects on their behavior with others. And if you are following the architecture career in Egypt, you’ll notice that the quality of architects’ professional skills is decreasing by time, and that the concept of continued education and development is decreasing too. That’s why this study is assuming that: \u0000 \u0000The concept of continued education is absent from the architects’ in Egypt. \u0000The architectural professional organizations in Egypt are not taking the lead to support the architects in Egypt, and to insure their continued education and the development of their professional skills. \u0000 \u0000Although there are about thirty department of architecture in the Egyptian public universities, and forty four department of architecture in the Egyptian private exist now in Egypt to prepare the architect with the fundamental education, completing this preparing happens during his actual experience years as a professional architect. \u0000The research aims at: Trying to form methods that grantee the effective developing for the architect, which make him/her able to challenge the updated developments that happen in the architecture field in Egypt. \u0000And the limits of this study are all of the architecture graduates in Egypt from public and private universities with their different age segments.","PeriodicalId":232733,"journal":{"name":"Bulletin of the Faculty of Engineering. Mansoura University","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117155234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal Allocation of FACTS Devices in Restructured Power Systems Integrated Wind Generation 风力发电系统重构中FACTS设备的优化配置

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-07-05 DOI: 10.21608/bfemu.2020.100769

A. Eladl, A. Elmitwally, S. Eskander, I. Mansy

{"title":"Optimal Allocation of FACTS Devices in Restructured Power Systems Integrated Wind Generation","authors":"A. Eladl, A. Elmitwally, S. Eskander, I. Mansy","doi":"10.21608/bfemu.2020.100769","DOIUrl":"https://doi.org/10.21608/bfemu.2020.100769","url":null,"abstract":"This paper proposes an approach to optimally allocate flexible AC transmission system (FACTS) devices in market-based restructured power systems based on Expected Benefit (EB) and installation cost of FACTS devices (FDs). The aims of the approach are minimizing device investment cost, and the locational marginal pricing (LMP) differences between buses to maximize revenue. This revenue is defined as the difference between EB with and without FACTS installation. The expected cost includes operating cost not only under normal condition but also under contingencies along with their associated probabilities to occur. The proposed method accurately evaluates the annual cost and benefits obtainable by FACTS devices installation by formulating a large-scale optimization problem that contains power flow analyses for a large number of system states representing annual power system operations. The objectives for normal state are maximizing social welfare by minimizing LMPs differences between buses and minimizing of generations re-scheduling, while the objectives in case of contingency are maximizing social welfare as well as minimizing compensations paid for generations re-scheduling and load shedding cost. The overall problem is solved using both Particle Swarm optimization (PSO) for attaining optimal FACTS devices setting and allocation as main problem and optimal power flow to calculate the operating costs and benefits as sub optimization problem. The effectiveness of the proposed approach is demonstrated on modified IEEE 14-bus test system and IEEE 118-bus test system.","PeriodicalId":232733,"journal":{"name":"Bulletin of the Faculty of Engineering. Mansoura University","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124282558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A New Multi-layer Perceptron Trainer based on Dragonfly Optimization Algorithm 基于蜻蜓优化算法的多层感知器训练器

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-06-30 DOI: 10.21608/bfemu.2020.99400

M. Abo-Elsoud, Mohamed Morsy, Shaima Elnazer

引用次数: 0

Design of a Hybrid Power System for Electrification of New Talkha Bridge Construction in Egypt 埃及新Talkha大桥电气化混合动力系统设计

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-06-30 DOI: 10.21608/bfemu.2020.99398

Eid Goda, M. Kandil, Khaled Nayel

引用次数: 0

Theoretical Development of Mathematical Model to Predict Vertical Wicking Behavior of Flow through Terry Towels 预测毛巾布垂直排汗行为的数学模型的理论发展

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-06-30 DOI: 10.21608/bfemu.2020.99456

H. Abou-Taleb, Heba El-Fowaty

{"title":"Theoretical Development of Mathematical Model to Predict Vertical Wicking Behavior of Flow through Terry Towels","authors":"H. Abou-Taleb, Heba El-Fowaty","doi":"10.21608/bfemu.2020.99456","DOIUrl":"https://doi.org/10.21608/bfemu.2020.99456","url":null,"abstract":" Abstract — Theoretical models have been proposed in this paper to predict the vertical wicking behaviour of fabrics based on different fibre, yarn and fabric parameters. The yarn and fabric models have been developed based on Hagen – Poiseuille’s equation on fluid flow and pore geometry through the yarns (inter–fibre pores) and fabrics (inter–yarn pores) have been determined. Factors such as yarn porosity, number of fibres in a yarn cross-section, fibre denier, yarn denier, yarn crimp, hydraulic pore diameter and fibre contact angle have been taken into account for development of the yarn model. Also, factors such as yarns diameters, ends & picks/ cm, fabric thickness, hydraulic pore diameter and fabric porosity have been taken into account for development of the fabric model. University mathematical equation has been incorporated, which helps to predict vertical wicking height at any given time considering the capillary and gravitational effects. Experimental verification of the fabric model has been carried out using cotton terry woven fabrics. The average of theoretical values of vertical wicking heights obtained from the yarn and fabric models were found to predict the vertical the vertical wicking height as a function of time through the fabrics with a good agreement compared with the experimental","PeriodicalId":232733,"journal":{"name":"Bulletin of the Faculty of Engineering. Mansoura University","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125939355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Removal of Iron and Manganese from Groundwater: A Study of Using Potassium Permanganate and Sedimentation 高锰酸钾沉淀法去除地下水中铁和锰的研究

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-06-25 DOI: 10.1051/MATECCONF/201816205018

Mohamed Y. Elsheikh, H. Guirguis, A. Fathy

{"title":"Removal of Iron and Manganese from Groundwater: A Study of Using Potassium Permanganate and Sedimentation","authors":"Mohamed Y. Elsheikh, H. Guirguis, A. Fathy","doi":"10.1051/MATECCONF/201816205018","DOIUrl":"https://doi.org/10.1051/MATECCONF/201816205018","url":null,"abstract":"This paper studies the efficiency of iron (Fe+2) and manganese (Mn+2) removal from groundwater using oxidation by potassium permanganate followed by filtration and using conventional treatment consisting of flocculation, sedimentation and filtration. Experiments were done for different combinations of Fe+2 and Mn+2 concentrations. The obtained results show that Potassium Permanganate (PP) gives good results. By using PP dose equals to half of the theoretically required one, it can remove up to 100% and 90% of iron and manganese respectively over different tested concentrations at pH=7.0. Increasing rate of filtration decreases the Mn+2 removal efficiency obviously. Sedimentation is required when combined concentrations of iron and manganese are greater than 5.0 ppm to reduce filter rapid clogging. Using conventional treatment with adding Alum, flocculation, sedimentation and filtration can remove up to 97% and 18% of iron and manganese respectively. Using PP in addition to alum enhances manganese removal but decreases iron removal. However, using Alum with raising pH to 10 leads to 100% and 95% of Fe+2 and Mn+2 removal and increases filter working period","PeriodicalId":232733,"journal":{"name":"Bulletin of the Faculty of Engineering. Mansoura University","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116805335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Sustainability constrains of Social Housing Projects in Egypt 埃及社会住房项目的可持续性约束

Bulletin of the Faculty of Engineering. Mansoura University Pub Date : 2020-06-25 DOI: 10.21608/bfemu.2020.98120

Eman S. Nasr, M. Elsaied, A. El-Eashy

{"title":"Sustainability constrains of Social Housing Projects in Egypt","authors":"Eman S. Nasr, M. Elsaied, A. El-Eashy","doi":"10.21608/bfemu.2020.98120","DOIUrl":"https://doi.org/10.21608/bfemu.2020.98120","url":null,"abstract":"Egypt -as many developing countries- is facing environmental, economic and social constrains. Also facing the negative impact of population growth. And the need to Provide safe and adequate housing for low income people to create an environment of social justice. Lack of affordable housing is recognized as one of the fundamental problems in urban areas in developed and developing countries alike. Egypt should adapt sustainable solutions to curb population growth and its negative impact on the environment such as the increasing demands made on natural resources, man-made and urban expansion over agricultural land. The Main Objective of this paper is to: examine the potential of adopting sustainable social housing projects in Egypt to overcome the country’s short-term future challenges. Where we could rely on as a nucleus for the new urban communities facing environmental, economic and social challenges. The research select affordable housing projects which present the three Axis of the national housing project (2005-2012) which are: \"Othman Housing (first care housing), Graduate Villages in Burullus (rural housing) and Harm city (private sector initiative)\" to study their issues and how they achieved the program objectives. To identify Constrains, opportunities and potentials that Egypt should widely discuss to determine the most appropriate during the construction of the current social housing project (The million units project).","PeriodicalId":232733,"journal":{"name":"Bulletin of the Faculty of Engineering. Mansoura University","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126468711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0