: This study presents core calculations of the Molten Salt Fast Reactor using different codes. The KENO (one of the SCALE package) code was used at the beginning to calculate the multiplication factor K eff for the benchmark design. After that, the TRITON (one of the SCALE package) was used to find the nuclear constants for the different regions of this design. These nuclear constants were used in the multi-physics code COMSOL to model the reactor and calculate the neutron flux Eigen values of the neutron diffusion equation and then calculate the multiplication factor K eff and get the neutron flux distribution. This distribution was used to make a coupling between the neutronic and the thermal hydraulic of the reactor. The nuclear codes MCNP5 and WIMS were also used in modelling this reactor to calculate K eff . The study showed the differences between the multiplication factor values from each code and compared them by the values from old reference studies and reflected the effect of the selection of the data libraries and the code on the results. It showed also the thermal hydraulic results for the benchmark as modelled by COMSOL.
:本研究介绍了使用不同代码进行的熔盐快堆堆芯计算。一开始使用 KENO（SCALE 软件包之一）代码计算基准设计的乘法系数 K eff。之后，使用 TRITON（SCALE 软件包之一）代码计算该设计不同区域的核常数。这些核常数被用于多物理场代码 COMSOL，以建立反应堆模型，计算中子扩散方程的中子通量特征值，然后计算乘法因子 K eff，并得到中子通量分布。该分布用于将反应堆的中子和热水力耦合起来。核代码 MCNP5 和 WIMS 也被用于该反应堆的建模，以计算 K eff。研究显示了每种代码的乘法因子值之间的差异，并与旧参考研究的值进行了比较，反映了选择数据 库和代码对结果的影响。研究还显示了 COMSOL 模拟基准的热水力结果。
{"title":"Core calculations of the Molten Salt Fast Reactor using different computational codes","authors":"Montaser Mohamed, Ramadan Moustafa, Nader Mohamed, Abdelfattah Soliman, Mamdouh Aldosouky","doi":"10.21608/erjsh.2023.198257.1152","DOIUrl":"https://doi.org/10.21608/erjsh.2023.198257.1152","url":null,"abstract":": This study presents core calculations of the Molten Salt Fast Reactor using different codes. The KENO (one of the SCALE package) code was used at the beginning to calculate the multiplication factor K eff for the benchmark design. After that, the TRITON (one of the SCALE package) was used to find the nuclear constants for the different regions of this design. These nuclear constants were used in the multi-physics code COMSOL to model the reactor and calculate the neutron flux Eigen values of the neutron diffusion equation and then calculate the multiplication factor K eff and get the neutron flux distribution. This distribution was used to make a coupling between the neutronic and the thermal hydraulic of the reactor. The nuclear codes MCNP5 and WIMS were also used in modelling this reactor to calculate K eff . The study showed the differences between the multiplication factor values from each code and compared them by the values from old reference studies and reflected the effect of the selection of the data libraries and the code on the results. It showed also the thermal hydraulic results for the benchmark as modelled by COMSOL.","PeriodicalId":159365,"journal":{"name":"Engineering Research Journal (Shoubra)","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327375","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}
Pub Date : 2023-10-01DOI: 10.21608/erjsh.2023.217424.1183
A. Gomaa
: Manufacturing companies seek to improve competitiveness through continuous improvement in process productivity and product quality using Lean Six Sigma (LSS) methodology, which is a methodology that integrates Lean Manufacturing and Six Sigma strategies, which means that the principles, philosophies and tools of both methodologies are also united in one approach. This systematic review aims to explore the most popular topics within LSS in manufacturing over the past ten years (2014 to 2023), and to identify and analyze any gaps. Results found that LSS helps in improving quality, increasing sigma level, reducing non-added value, increasing productivity, reducing production costs, and improving customer satisfaction. Furthermore, the results can be used for a systematic literature review by researchers and manufacturing leaders before embarking on a journey of continuous improvement. Finally, this study proposed a LSS framework for the manufacturing domain, which includes 40 steps. Various tools like process mapping, KPIs, OEE, sigma level, seven quality control tools, process time analysis, value stream mapping, kaizen, 5S, brainstorming, and standard work have been used at different phases of DMAIC.
{"title":"A Systematic Review of Lean Six Sigma in Manufacturing Domain","authors":"A. Gomaa","doi":"10.21608/erjsh.2023.217424.1183","DOIUrl":"https://doi.org/10.21608/erjsh.2023.217424.1183","url":null,"abstract":": Manufacturing companies seek to improve competitiveness through continuous improvement in process productivity and product quality using Lean Six Sigma (LSS) methodology, which is a methodology that integrates Lean Manufacturing and Six Sigma strategies, which means that the principles, philosophies and tools of both methodologies are also united in one approach. This systematic review aims to explore the most popular topics within LSS in manufacturing over the past ten years (2014 to 2023), and to identify and analyze any gaps. Results found that LSS helps in improving quality, increasing sigma level, reducing non-added value, increasing productivity, reducing production costs, and improving customer satisfaction. Furthermore, the results can be used for a systematic literature review by researchers and manufacturing leaders before embarking on a journey of continuous improvement. Finally, this study proposed a LSS framework for the manufacturing domain, which includes 40 steps. Various tools like process mapping, KPIs, OEE, sigma level, seven quality control tools, process time analysis, value stream mapping, kaizen, 5S, brainstorming, and standard work have been used at different phases of DMAIC.","PeriodicalId":159365,"journal":{"name":"Engineering Research Journal (Shoubra)","volume":"323 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326930","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}
Pub Date : 2023-10-01DOI: 10.21608/erjsh.2023.208045.1164
Anas Elsayed, mossad ali, Gehan Hamdy
: This paper presents an experimental program performed on a structural panel fabricated from glass fiber reinforced polymer (GFRP) and a wooden frame. The tested panel consists of a timber frame with the dimensions of 1200 x 600 x 25 mm covered by GFRP layers which were manufactured by a hand-layup process. Tensile and flexure tests were conducted for the GFRP specimens and for GFRP-covered wood sections to evaluate the material properties. The results showed brittle failure under average maximum load of 9.28 kN, average maximum elongation of 7.7 mm and the modulus of elasticity for the GFRP was about 2400 MPa. The obtained bending stress for GFRP-covered wood sections ranged between 90-115 MPa. Additionally, full-scale panels were tested under distributed loads until failure to study their flexural behavior. The experimental results demonstrated good mechanical and physical properties for the presented GFRP-wood panels, which renders the use of such composite GFRP-wood panel promising in prefabricated structures.
{"title":"Fabrication and Testing of a Wood-Framed FRP Structural Panel","authors":"Anas Elsayed, mossad ali, Gehan Hamdy","doi":"10.21608/erjsh.2023.208045.1164","DOIUrl":"https://doi.org/10.21608/erjsh.2023.208045.1164","url":null,"abstract":": This paper presents an experimental program performed on a structural panel fabricated from glass fiber reinforced polymer (GFRP) and a wooden frame. The tested panel consists of a timber frame with the dimensions of 1200 x 600 x 25 mm covered by GFRP layers which were manufactured by a hand-layup process. Tensile and flexure tests were conducted for the GFRP specimens and for GFRP-covered wood sections to evaluate the material properties. The results showed brittle failure under average maximum load of 9.28 kN, average maximum elongation of 7.7 mm and the modulus of elasticity for the GFRP was about 2400 MPa. The obtained bending stress for GFRP-covered wood sections ranged between 90-115 MPa. Additionally, full-scale panels were tested under distributed loads until failure to study their flexural behavior. The experimental results demonstrated good mechanical and physical properties for the presented GFRP-wood panels, which renders the use of such composite GFRP-wood panel promising in prefabricated structures.","PeriodicalId":159365,"journal":{"name":"Engineering Research Journal (Shoubra)","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139330113","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}
Pub Date : 2023-10-01DOI: 10.21608/erjsh.2023.227953.1198
Ramy El-Sayed
: The growing awareness of the environment's importance and the impact of climate change has led architects and designers to adopt sustainable building design approaches for enhancing their buildings quality. Bioclimatic design is one such approach that aims to create comfortable and energy-efficient buildings by utilizing natural resources and local climate data. This paper delves into the concept of bioclimatic design in detail highlighting different bioclimatic strategies for residential buildings that help in achieving bioclimatic design goals. The aim of this paper is to provide a systematic review that explores and categorizes the bioclimatic architecture approaches, analysis and assessment methods, and strategies in a clear and concise manner. The methodology employed in this study is a literature review of bioclimatic architectural designs in residential buildings to comprehend their design approaches, analysis and assessment methods, and strategies. This study focuses on bioclimatic design, thermal comfort, and energy efficiency. Future studies on bioclimatic building design should focus on analyzing current strategies in different climate zones, testing new technologies and materials, exploring more strategies suitable for the local climate, and evaluating the integration of bioclimatic design with other sustainable approaches to create efficient and cost-effective buildings.
{"title":"Review and Analysis of Bioclimatic Design Approach","authors":"Ramy El-Sayed","doi":"10.21608/erjsh.2023.227953.1198","DOIUrl":"https://doi.org/10.21608/erjsh.2023.227953.1198","url":null,"abstract":": The growing awareness of the environment's importance and the impact of climate change has led architects and designers to adopt sustainable building design approaches for enhancing their buildings quality. Bioclimatic design is one such approach that aims to create comfortable and energy-efficient buildings by utilizing natural resources and local climate data. This paper delves into the concept of bioclimatic design in detail highlighting different bioclimatic strategies for residential buildings that help in achieving bioclimatic design goals. The aim of this paper is to provide a systematic review that explores and categorizes the bioclimatic architecture approaches, analysis and assessment methods, and strategies in a clear and concise manner. The methodology employed in this study is a literature review of bioclimatic architectural designs in residential buildings to comprehend their design approaches, analysis and assessment methods, and strategies. This study focuses on bioclimatic design, thermal comfort, and energy efficiency. Future studies on bioclimatic building design should focus on analyzing current strategies in different climate zones, testing new technologies and materials, exploring more strategies suitable for the local climate, and evaluating the integration of bioclimatic design with other sustainable approaches to create efficient and cost-effective buildings.","PeriodicalId":159365,"journal":{"name":"Engineering Research Journal (Shoubra)","volume":"145 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139331535","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}
Pub Date : 2023-10-01DOI: 10.21608/erjsh.2023.212442.1173
A. Abdelmonem, Tamer mahmoud, Osama Abdellatif, A. Abdo
: Photovoltaic panels (PV) are considered one of the solutions to face climate change and pollution. A PV/Thermal system is used as a result to raise the output power of the PV modules by decreasing their temperatures. This work includes numerical and experimental outputs, a comparison between the electro-thermal behaviours of water and different percentages of AL 2 O 3 Nano-water (0.001 & 0.01) pass through a new back pipe structure (pancake) installed under the PV module is presented. Comsol Multiphysics and MATLAB simulators are utilized to apply the model. The experimental work runs for both Nanoparticle concentrations compared with water. The pumping power consumption is approximately 1% from the average output power of the system. The thermal results for 0.01 %wt of AL2O3 Nano-water show that the PV module temperature decreased about 14.04 % and 8.8 % compared with water and 0.001 %wt Alumina, respectively. In addition, the difference in water temperature is increased by about 21.6 % and 6.7 % for two different concentrations compared with water. That leads to enhancement in the module’s daily output power up to 14.6 % by using 0.01 wt% AL2O3 Nano fluid compared with cooling water.
{"title":"An implemented Structure for enhancing the Electrical Output Power of a Photovoltaic Module Based on Active Nano-fluid cooling Technique","authors":"A. Abdelmonem, Tamer mahmoud, Osama Abdellatif, A. Abdo","doi":"10.21608/erjsh.2023.212442.1173","DOIUrl":"https://doi.org/10.21608/erjsh.2023.212442.1173","url":null,"abstract":": Photovoltaic panels (PV) are considered one of the solutions to face climate change and pollution. A PV/Thermal system is used as a result to raise the output power of the PV modules by decreasing their temperatures. This work includes numerical and experimental outputs, a comparison between the electro-thermal behaviours of water and different percentages of AL 2 O 3 Nano-water (0.001 & 0.01) pass through a new back pipe structure (pancake) installed under the PV module is presented. Comsol Multiphysics and MATLAB simulators are utilized to apply the model. The experimental work runs for both Nanoparticle concentrations compared with water. The pumping power consumption is approximately 1% from the average output power of the system. The thermal results for 0.01 %wt of AL2O3 Nano-water show that the PV module temperature decreased about 14.04 % and 8.8 % compared with water and 0.001 %wt Alumina, respectively. In addition, the difference in water temperature is increased by about 21.6 % and 6.7 % for two different concentrations compared with water. That leads to enhancement in the module’s daily output power up to 14.6 % by using 0.01 wt% AL2O3 Nano fluid compared with cooling water.","PeriodicalId":159365,"journal":{"name":"Engineering Research Journal (Shoubra)","volume":"255 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139331460","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}
Pub Date : 2023-10-01DOI: 10.21608/erjsh.2023.215856.1182
Nadia Nofal, Hossam Ahmed, Gehan Hamdy, A. Shanour, Salma Saad
: Geopolymer concrete has developed as an environmentally sustainable construction material the gained importance due to its cement-free production process. This paper presents numerical modeling through nonlinear finite element analysis (NLFEA) of reinforced geopolymer concrete beams as well as an analytical study. The numerical modeling and nonlinear analysis are performed using commercial software ANSYS, made for previously tested geopolymer concrete (GC) beams with main reinforcement bars of steel and glass fiber reinforced polymers (GFRP), and contains two types of dispersed fibers: steel and polypropylene fibers. The numerical results are presented and compared with the published experimental findings. A reasonable correlation between numerical and experimental results is observed, thus validating the efficiency of the modeling methodology for analyzing and designing geopolymer concrete c elements .
:土工聚合物混凝土是一种环境可持续发展的建筑材料，由于其生产过程不使用水泥，因此越来越受到重视。本文介绍了通过非线性有限元分析（NLFEA）对钢筋土工聚合物混凝土梁进行的数值建模以及分析研究。数值建模和非线性分析是使用商业软件 ANSYS 进行的，针对的是之前测试过的土工聚合物混凝土（GC）梁，其主筋为钢筋和玻璃纤维增强聚合物（GFRP），包含两种类型的分散纤维：钢纤维和聚丙烯纤维。本文介绍了数值结果，并将其与已公布的实验结果进行了比较。观察到数值结果与实验结果之间存在合理的相关性，从而验证了该建模方法在分析和设计土工聚合物混凝土 c 单元方面的有效性。
{"title":"Flexural Behavior of Steel and FRP-Reinforced Geopolymer Concrete Beams : Numerical Modeling and Analytical Study","authors":"Nadia Nofal, Hossam Ahmed, Gehan Hamdy, A. Shanour, Salma Saad","doi":"10.21608/erjsh.2023.215856.1182","DOIUrl":"https://doi.org/10.21608/erjsh.2023.215856.1182","url":null,"abstract":": Geopolymer concrete has developed as an environmentally sustainable construction material the gained importance due to its cement-free production process. This paper presents numerical modeling through nonlinear finite element analysis (NLFEA) of reinforced geopolymer concrete beams as well as an analytical study. The numerical modeling and nonlinear analysis are performed using commercial software ANSYS, made for previously tested geopolymer concrete (GC) beams with main reinforcement bars of steel and glass fiber reinforced polymers (GFRP), and contains two types of dispersed fibers: steel and polypropylene fibers. The numerical results are presented and compared with the published experimental findings. A reasonable correlation between numerical and experimental results is observed, thus validating the efficiency of the modeling methodology for analyzing and designing geopolymer concrete c elements .","PeriodicalId":159365,"journal":{"name":"Engineering Research Journal (Shoubra)","volume":"187 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139325488","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}
Pub Date : 2023-10-01DOI: 10.21608/erjsh.2023.212116.1170
Khaled Abdel Aziz
: Orthometric heights related to the geoid, are important in many engineering projects. The use of Global Positioning System (GPS) does not give the heights of the points on the surface of the geoid but gives them on the surface of the reference ellipsoid. Geoid undulations should be offered to obtain the needed orthometric heights from their corresponding available ellipsoidal heights. The aim of this research is to obtain the best among the Global Geopotential Models (GGMs) that give the results closest to the observed geoid heights over two study areas. Firstly, in Egypt and secondly in the Kingdom of Saudi Arabia (KSA). In the first study area, RMS of the differences between the observed undulations (GPS/levelling) and those from GOCO05c, XGM2016, and GECO are the lowest values among the ten tested GGMs. In the second study area, RMS of the differences between the undulations from KSA-GEOID21 and those from XGM2019e_2159, XGM2016, and XGM2019 are the lowest among the ten tested GGMs.
{"title":"Assessment of some global geopotential models over Egypt and the Kingdom of Saudi Arabia","authors":"Khaled Abdel Aziz","doi":"10.21608/erjsh.2023.212116.1170","DOIUrl":"https://doi.org/10.21608/erjsh.2023.212116.1170","url":null,"abstract":": Orthometric heights related to the geoid, are important in many engineering projects. The use of Global Positioning System (GPS) does not give the heights of the points on the surface of the geoid but gives them on the surface of the reference ellipsoid. Geoid undulations should be offered to obtain the needed orthometric heights from their corresponding available ellipsoidal heights. The aim of this research is to obtain the best among the Global Geopotential Models (GGMs) that give the results closest to the observed geoid heights over two study areas. Firstly, in Egypt and secondly in the Kingdom of Saudi Arabia (KSA). In the first study area, RMS of the differences between the observed undulations (GPS/levelling) and those from GOCO05c, XGM2016, and GECO are the lowest values among the ten tested GGMs. In the second study area, RMS of the differences between the undulations from KSA-GEOID21 and those from XGM2019e_2159, XGM2016, and XGM2019 are the lowest among the ten tested GGMs.","PeriodicalId":159365,"journal":{"name":"Engineering Research Journal (Shoubra)","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326715","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}
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