@article { author = {abo einan, osama and Shahda, Merhan and Adil, Rash}, title = {Effect of Mass Formation on Indoor Thermal Performance in the Arab Region}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {1-9}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.32530}, abstract = {The global energy demand has increased, which led to a severe shortage of energy sources in the world. Buildings consume alone about 40% of total energy production. This is mainly due to the lack of consideration of climatic and environmental factors in the early steps of building design. So we have many buildings with low thermal performance.In an attempt to find ways to increase the thermal performance of the building, this paper focuses on the study of the relationship between the thermal performance of the building and the most important element in the design of the building is the building shape. The paper focused on the Arab world's climate, especially in hot climates (hot-dry, hot-humid).The simulation was conducted using Design Builder program in two cities, in Jeddah in Saudi Arabia (which represents a hot-dry climate) and the other city is Port Said in Egypt (which represents a hot-humid climate). Several shapes were compared and these shapes are circle, square, rectangle by different ratios, L shape, U shape and courtyard. The results varied in each climate:In hot- dry climate: 1) The courtyard shape helped in saving 53% of the energy. 2) By directing the building to the north or south, saves 10% of the energy. 3) When the percentage of openings 10% provided 44% of the energy.In hot-humid climate: 1) The square shape has the best thermal performance since it saves about 46.5% of the energy. 2) The building which directed to the north provides about 14% of the energy. 3) The percentage of openings in the building when 10% provides 52.8% of energy.}, keywords = {Building form,Arab Region,hot-dry climate,hot-humid climate,and Thermal performance}, url = {https://pserj.journals.ekb.eg/article_32530.html}, eprint = {https://pserj.journals.ekb.eg/article_32530_6f9771bac2801d0617b105c5f2dad672.pdf} } @article { author = {El-Salamouny, Hussein El-Salamouny and Abdou, Amal and Ghoneem, Mahmoud}, title = {Effects of Indoor Environmental Quality on Occupant's Satisfaction, Health and Productivity}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {10-18}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.32532}, abstract = {Occupant satisfaction with indoor environmental quality (IEQ) in office buildings has been completely related to self-estimated job performance and, probably, to overall company productivity. Poor indoor environmental circumstances can negatively affect occupants’ physical health through poor air quality, extreme temperatures, excess humidity, or insufficient ventilation and psychological health through inadequate lighting, acoustics, and ergonomic design. Sustainable or green building rating systems is attempting to address IEQ and occupant health concerns by providing healthier building environments. Although many qualitative studies claimed that improved IEQ also improves health and productivity and has provided substantial motivation to build green, quantitative studies are needed to prove these relationships. This research shows an outline of the results from a post occupancy evaluation (POE) study on indoor environment, occupant health, and wellbeing in two office buildings in greater Cairo: conventional building and green building certified using the Leadership in Energy and Environmental Design (LEED) Rating System; which is owned and occupied by the same origination. Evaluation of IEQ is based on ‘Building Use Studies’ (BUS) occupant questionnaire which applied in both buildings. This research highlighted that occupants productivity in office buildings can be enhanced through good building design, and provision of a high quality, healthy, and functional interior environment, that takes consideration of basic occupant needs}, keywords = {Indoor environmental quality,Occupant Satisfaction,Post-Occupancy Evaluation,productivity}, url = {https://pserj.journals.ekb.eg/article_32532.html}, eprint = {https://pserj.journals.ekb.eg/article_32532_9b9ecc788c1341330e7501ac7d8ccf22.pdf} } @article { author = {elmokadem, ashraf and Samaty, Hossam and Atout, Mariam}, title = {Designing Urban Learning Places at Secondary Schools}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {19-24}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.32533}, abstract = {School environment is important for student’s development. Environmental psychology theories suggest that environmental context affects attitudes and social behavior. Research focuses on the relationship between the external physical environment of urban learning spaces at secondary schools and the student’s behavior in Egypt. Moreover, the research problem focus on neglecting of the physical area surrounding the schools and its lack of suitability for the different needs of adolescents. Accordingly, the results show that the relationships between the school's physical environment and the student's behavior. The design and planning of the school's external environment should push more attention to creating an enabling learning environment that can promote positive social behavior, especially in urban learning spaces at schools.}, keywords = {Urban spaces,student’s behavior,Urban Learning Places,students' Practices,Physical environment,Secondary schools}, url = {https://pserj.journals.ekb.eg/article_32533.html}, eprint = {https://pserj.journals.ekb.eg/article_32533_86951ae119af3b4d416d4085f4bed891.pdf} } @article { author = {Abdelglil, Emad and Fawzy, Khaled and Sallam, Ezzat and Hassan, Sara}, title = {Study of Shear Strengthening of Reinforced Concrete Beams Using Embedded Bars and CFRP}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {25-38}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.32536}, abstract = {A new technique for shear strengthening of reinforced concrete (RC) elements is the embedded through section (ETS). This technique calls for holes to be drilled through the beam section, and then bars of steel are introduced into these holes, bonded with adhesives or fixed mechanically. This research presents an experimental and analytical study for shear strengthening of reinforced concrete beams. The main objective of the research is to study the different methods for shear strengthening by using ETS technique (bond and mechanical) and the use of this technique on beams early strengthened with CFRP sheets. An experimental program including fourteen test specimens was conducted. The beams were classified into four groups to draw the necessary conclusion for the study parameters (strengthening method for ETS, inclination of ETS, loading history, CFRP sheets). The effects of the selected parameters on the beam shear capacity are presented in form of cracking, and failure load comparisons. The analytical results from (Eurocode and ACI code) and the gained shear capacity were compared to those obtained from experiments. Based on the above study, recommendations for shear strengthening using ETS and CFRP composites were drawn.}, keywords = {shear strengthening,reinforced concrete beams,ETS steel bars,ETS technique,CFRP sheets}, url = {https://pserj.journals.ekb.eg/article_32536.html}, eprint = {https://pserj.journals.ekb.eg/article_32536_5c3ec8ff7ff167105c6db71edd1057e4.pdf} } @article { author = {Elgendy, Mohamed and El-Araby, Ibrahim and Radwan, Ahmed}, title = {Spud-Can Penetration Response in Double Layered Soil by Press-Replace Technique}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {39-46}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.32820}, abstract = {One of the most important factors in the process of jack-up rig installation is the good expectation of the amount of spud-can penetration into soil layers under the varying loads. It is important to insert the spud-can through soil layers up to the expected stability depth during the installation process to guarantee enough soil stability reaction. The Press-Replace Technique (PRT), which is considered a kind of small-deformation nonlinear-material finite-element analysis, is applied in this paper to track the full load-penetration response of a spud-can in double-layered soil. A parametric study was carried out by using Plaxis 2D Vr.8.6 to evaluate the effect of the strength properties of soil on the Punch-through phenomenon and the bearing capacity of soil spud-can system by applying the Press Replace Technique (PRT). This study is also concerned with the penetration of a circular spud-can in stiff clay over either soft clay or loose sand soil. Among the considered properties of the soil, it was demonstrated that the undrained shear strength of top stiff clay layer is the most important parameter that affects the penetration response of spud-can in this case, where the properties of the lower soft clay layer do not have major effect.    }, keywords = {Jack-up Rig,Spud-Can,Penetration,Offshore Engineering,Punch-Throw,Backflow,PLAXIS}, url = {https://pserj.journals.ekb.eg/article_32820.html}, eprint = {https://pserj.journals.ekb.eg/article_32820_e32933c081ec4b684f14ea4682c8521a.pdf} } @article { author = {Sharaf, Tarek and Elsabbagh, Ashraf and Abdellatif, Mohamed and Elghandour, Mohamed}, title = {Flexural Behavior of Beams Fabricated Using Light Gauge Steel with Rectangular or Triangular Hollow Flanges}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {47-64}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.32833}, abstract = {Although the hot-rolled steel members have been considered as the most common and widely used steel profiles, but light gauge steel (LGS) use in structures is widely increasing recently. The structural attitude of this light gauge is characterized by different buckling modes as local, distortional, and torsional buckling. Light gauge steel sections are being produced in many forms. One of these forms is the hollow flanged beam sections which proved its effectiveness but their behavior still not fully understood. In this paper, the moment behavior of LGS beams is verified using the finite element analysis. A numerical study was applied to figure out the parameters affecting the behavior of the LGS beams in case of using hollow flanges, either rectangular or triangular, with and without vertical stiffening under flexural loading. All beams were simply supported and subjected to two-point loadings configuration. The ultimate load capacity and failure mode of all beams were determined. Three different design codes were utilized to validate the results.}, keywords = {Rectangular hollow flange steel beams,Triangular hollow flange steel beams,Finite Element Analysis,Light gauge steel,Design standards,Local buckling failure}, url = {https://pserj.journals.ekb.eg/article_32833.html}, eprint = {https://pserj.journals.ekb.eg/article_32833_fedfffe956e6402da00a444675c2e8b1.pdf} } @article { author = {Younis, Galal and Abdelghany, Randa and Mostafa, Mostafa and El-Barbary, Rana}, title = {Sensitivity Analyses of Intact and Damage Stability Properties to Passenger Ship’s Dimensions and Proportions}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {65-73}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.32861}, abstract = {Demand for cruise ships has increased significantly in recent years. The design of passenger vessels has changed significantly to reflect customer requirements and the need to increase income earning capacity. The current investigation aims to understand the impact of changing the main dimensions or form proportions on the ship’s stability and the allowed limitation to KG. The study is performed to evaluate the sensitivity of the intact and damage stability properties as well as the limiting KG for intact and damage stability after changing the main dimensions of a passenger ship.}, keywords = {Passenger ships-stability,IMO criteria,Limiting KG,SOLAS criteria,ship dimensions,proportions}, url = {https://pserj.journals.ekb.eg/article_32861.html}, eprint = {https://pserj.journals.ekb.eg/article_32861_091a987bf5ad0d66c1dc161d7154f567.pdf} } @article { author = {Shamah, Mohamed and Abdel-Nasser, Yehia and Abdel-Rahim, Mohanad}, title = {Rational Design of Inland Water Vessels}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {74-82}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.33064}, abstract = {This paper has demonstrated the design aspects for inland water units working in the River Nile. The acting loads and stresses induced in the structural elements of inland units are still water bending moment and stresses, local hydrostatic pressure and local stresses. A rational structural analysis procedure is developed and applied. This approach will result in decreasing the lightweight. Accordingly, this weight will increase the cargo capacity in the inland water units which will economically affect all terms of the transportation business.}, keywords = {Nile barges,Rational design,strength estimation,Modes of Failure}, url = {https://pserj.journals.ekb.eg/article_33064.html}, eprint = {https://pserj.journals.ekb.eg/article_33064_a42310a06d90bd89b6cb74b10db39f84.pdf} } @article { author = {Alameldin, Atef and El-Ghandour, Mohamed and Kamal, Yasser}, title = {A Numerical Study of the Effect of Endwall Injection Blowing Ratio on a High Pressure Turbine Cascade Performance}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {83-93}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.33066}, abstract = {The aerodynamics of the flow in a turbine stage is complex and still the subject of many ongoing researches. The secondary flow is the major source of aerodynamic losses in a turbine stage. Fluid injection from the endwall is used to improve the aerodynamic performance. For the current study, the change of injection blowing ratio has been investigated as an effective way to increase turbine efficiency by mitigating the strength of vortices. The interaction between the main flow and the injection flow from flat endwall is analyzed by numerical simulation. Five endwall injection holes were placed near the blade suction side on a typical flat blade cascade with two injection blowing ratios. In these cases, each hole has the same blowing ratio. Furthermore, two other test cases (mixing blowing ratio) in which every hole has its own blowing ratio independent of other holes. The new injection arrangements techniques have proved its effectiveness in increasing blade loading by 1.85 % more than baseline test case blade loading. In addition to suppression flow losses by 2.1 % less than baseline test case losses.}, keywords = {Endwall,Blowing ratio,Turbine Cascade}, url = {https://pserj.journals.ekb.eg/article_33066.html}, eprint = {https://pserj.journals.ekb.eg/article_33066_b931eb6542e1046ded22da9bf3219c29.pdf} } @article { author = {Alameldin, Atef and El-Ghandour, Mohamed and Kamal, Yasser}, title = {A Numerical Study of the Effect of Endwall Injection Inclination Angle on a High Pressure Turbine Cascade Performance}, journal = {Port-Said Engineering Research Journal}, volume = {23}, number = {1}, pages = {94-105}, year = {2019}, publisher = {Port Said University, Faculty of Engineering}, issn = {1110-6603}, eissn = {2536-9377}, doi = {10.21608/pserj.2019.33067}, abstract = {The turbine flow near the endwall is highly three-dimensional flow. The injection flow has been investigated widely as an effective way to increase turbine efficiency. For the current study, the interaction between the main flow and the injection control flow from flat endwall, is analyzed by numerical simulation. Flow injection were done using five endwall holes placed on a typical flat blade cascade near the blade suction side with six different inclination angles arrangements. In these test cases all the five holes has the same inclination angle. In addition, two new injection test cases, namely, mixing inclination angles in which each hole has an inclination angle independent of other holes. The new injection arrangements techniques have proved its effectiveness in increasing blade loading by 1.71 % more than baseline test case blade loading. Also, it proved its effectiveness in suppressing the flow losses by 2.1 % less than baseline test case losses. Moreover, all selected test cases gave positive different readings with respect to blade loading by increasing the static pressure on the blade surface and preventing boundary layer separation at the suction side and hence reducing the large undesirable effects of secondary flows.}, keywords = {Endwall injection,Turbine Cascade,Inclination angle}, url = {https://pserj.journals.ekb.eg/article_33067.html}, eprint = {https://pserj.journals.ekb.eg/article_33067_34c858b225cbc279def0d13117fcac92.pdf} }