Energy dissipation In treated sewage pipeline with steep slope using novel-shaped orifice plates / (Record no. 176335)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04141namaa22004331i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GICUC |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20251221124324.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 251129s2025 ua a|||frm||| 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloguing agency | EG-GICUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GICUC |
| Modifying agency | EG-GICUC |
| Description conventions | rda |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | eng |
| -- | ara |
| 049 ## - Acquisition Source | |
| Acquisition Source | Deposit |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 627.05 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 627.05 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.13.05.M.Sc.2025.Ma.E |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Mahmoud Mostafa Ragab Mostafa, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | Energy dissipation In treated sewage pipeline with steep slope using novel-shaped orifice plates / |
| Statement of responsibility, etc. | by Mahmoud Mostafa Ragab Mostafa ; Supervisors Prof. Dr. Ahmed Mohamed Helmy, Prof. Dr. Mohamed Attia Mohamed. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تشتيت الطاقة في خطوط الانابيب شديدة الانحدار عن طريق تصميم جديد للالواح المثقوبة |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Date of production, publication, distribution, manufacture, or copyright notice | 2025. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 48 pages : |
| Other physical details | illustrations ; |
| Dimensions | 30 cm. + |
| Accompanying material | CD. |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Source | rda content |
| 337 ## - MEDIA TYPE | |
| Media type term | Unmediated |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | volume |
| Source | rdacarrier |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc)-Cairo University, 2025. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography: pages 44-48. |
| 520 #3 - SUMMARY, ETC. | |
| Summary, etc. | In this research, a new design of "orifice plate" is developed to allow for energy <br/>dissipation with a low probability of clogging. The impact of changing the hydraulic and <br/>geometrical parameters of the orifice plate on the head loss coefficient is experimentally <br/>investigated. The head loss coefficients for the different opening ratios of the proposed <br/>orifice plates are obtained. The effect of using multistage orifice plates on the head loss <br/>coefficient is also investigated. Results show that the head loss coefficient remains <br/>unchanged for flows with Reynolds numbers (Re > 105), which is the operating condition <br/>for most steep-slope pipelines. The head loss coefficient was found to be 5.11, 2.48, 1.50, <br/>and 0.81 for opening ratios of 0.50, 0.60, 0.70, and 0.80, respectively. In the case of <br/>multistage orifices, the head loss coefficient remained unchanged compared to that for a <br/>single orifice as long as the orifices are spaced by 10 D and the total head loss coefficient <br/>for this configuration equals the head loss coefficient for a single orifice times the number <br/>of orifices in the configuration. This configuration can be utilized to create multiple local <br/>losses along the pipeline to gradually dissipate the required head and reduce the <br/>probability of cavitation. |
| 520 #3 - SUMMARY, ETC. | |
| Summary, etc. | تم استحداث تصميم جديد للألواح المثقوبة لتشتيت الطاقة مع تقليل احتمالات الانسداد. أُجريت دراسة معملية لتحليل تأثير العوامل الهيدروليكية وأشكال الألواح على معامل فقدان الطاقة. أظهرت النتائج أن معامل الفقد لا يتأثر برقم رينولدز عندما يكون Re > 1×10⁵. كما تبين أن معامل الفقد يبلغ 5.11 و2.48 و1.50 و0.81 لنسب الفتح 50%-60%-70%-80% على التوالي. عند استخدام عدة ألواح متتالية، يكون الفقد الكلي مساويًا لمعامل فقد اللوح الواحد مضروبًا في عدد الألواح. يتيح هذا الترتيب تشتيت الطاقة تدريجيًا وتقليل خطر التكهف في خطوط الأنابيب شديدة الانحدار. |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issues also as CD. |
| 546 ## - LANGUAGE NOTE | |
| Text Language | Text in English and abstract in Arabic & English. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Hydraulic engineering |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | الهندسة الهيدروليكية |
| 653 #1 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Energy Dissipation |
| -- | Head Losses |
| -- | Novel-Shaped Orifice Plate |
| -- | Opening Ratio |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahmed Mohamed Helmy |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Attia Mohamed |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2024 |
| Supervisory body | Ahmed Mohamed Helmy |
| -- | Mohamed Attia Mohamed |
| Discussion body | Ahmed Wagdy Abdeldayem |
| -- | Anas Mohamed El-Molla |
| Universities | Cairo University |
| Faculties | Faculty of Engineering |
| Department | Department of Irrigation and Hydraulics Engineering |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Shimaa |
| Reviser Names | Eman Ghareb |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Edition | 21 |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Home library | Current library | Date acquired | Inventory number | Full call number | Barcode | Date last seen | Effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 29.11.2025 | 92632 | Cai01.13.05.M.Sc.2025.Ma.E | 01010110092632000 | 29.11.2025 | 29.11.2025 | Thesis |