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Browsing Hydraulic Engineering by Title

Now showing items 126-145 of 190

Limitations in the Process of Peak Discharge Estimation for Design of Major Road Crossing Drainage Structures (Based on Current Practices in Ethiopia)

Mekari, Zemedagegnehu (AAU, 2015-12)

Drainage structures of a road are one of the major components which contribute for proper function of the road system. Under designing might result in over flooding of the road surface which undermines the safety of the ...
Maximizing Water Use Efficiency through Intra-Basin Canal System: The Case of Awash River Basin

Wondimneh, Betelhem (Addis Ababa University, 2017-06)

The pressure on the world’s fresh water is increasing from time to time due to rapid population growth, agricultural expansion and industrialization. This situation is also observed in the Awash River Basin which calls for ...
Megech Dam Reservoir Sediment Estimation Using Swat Model

Kemal, Nina (Addis Ababa, 2016-09)

Erosion is a major watershed problem causing significant loss of soil fertility and productivity. Increased sediment loads that shorten the useful life of the reservoir, the lives of other water related structures, and ...
Modeling and Analyses of Urban Flooding in Bole Subcity System Performance and Evaluation of Possible Improvements Using Ep Swmm5

Hassen, Nejib (Addis Ababa, 2016-11)

The runoff generation in Bole area Addis Ababa is increasing due to a combination of larger rainfall intensity and more impervious areas. As a consequence several properties have been affected by basement flooding during ...
Modeling of Sediment Yield at Kesem Dam and Identifying Soil and Water Conservation Measures

Dawit, Lenjiso (Addis Ababa University, 2019-04)

Soil erosion reduces not only soil productivity of the area but also reservoir capacity. The information on sources of sediment yield within a catchment can be used as a perspective on the rate of soil erosion occurring ...
Modeling Sediment Yield Using Arcswat And Analyzing The Most Prominent Remedial Measures: Cases of Melka Wakena Reservoir, Ethiopia

Tolosa, Dereje (Addis Ababa University, 2015-07)

Sediment accumulation in a reservoir is a serious problem that threatens sustainability of the reservoir and has severe consequence on reservoir productivity during its operation time. Therefore, this study was initiated ...
Modeling Sediment Yield, Transport and Deposition In The Data Scarce Region of Ethiopian Rift Valley Lake Basin

Alemu, Osore (Addis Ababa University, 2018-12)

Knowledge of sediment yield, transport and deposition processes taking place in a river basin is necessary to find suitable mitigation measures for reservoir sedimentation and to estimate lifespans of reservoirs. This ...
Numerical Groundwater Flow Modeling Of the Gerado River Catchment

Kidest, Ayalew (Addis Ababa University, 2018-12)

In this study, a one dimensional groundwater flow model under steady state condition was constructed as a tool to understand the aquifer system of Gerado River catchment using numerical groundwater flow modeling. The ...
Numerical Groundwater Flow Modeling of the Meki River Catchment, Central Ethiopia

Birhanu, Dereje (Addis Ababa University, 2011-10)

The Meki river catchment aquifer is located in the central Ethiopian rift valley. This unconfined aquifer is one of the most important groundwater reservoirs of the country. A total catchment of 2319 km2 was selected to ...
Operation Modeling for Tendaho Reservoir Using HEC-Ressim

Asrat, Biruk (Addis Ababa University, 2010-12)

In this study it has been intended to develop operation modeling for Tendaho reservoir using HEC-ResSim software. The input data considered for the model are daily inflow, monthly irrigation and environmental diversion ...
Optimal Design and Scheduling of Irrigation Pumps by Using General Algebraic Modelling Systems (Gams) A Case Study of Fentale-Qawa Pump Station

Etana, Girma (Addis Ababa University, 2015-03)

Traditionally, design engineers tend to be conservative in calculating pump station decision variables by focusing on peak demands that occur about1% of the time. On the other hand, optimal design and operation of pumping ...
Optimization Analysis of Water Supply Distribution System The Case Study of Awash Sebat Killo Town Distribution System

Gezahegn, Hailemariam (Addis Ababa University, 2018-10)

Water supply distribution systems estimated to account of 80 to 85% of the total cost for the whole Water supply project (International Journal of Mechanical Engineering and Technology, 2014), that include source ...
Performance Assessment of Diversion Headwork Implemented for Irrigation (Case Study on Fantale Irrigation Based Integrated Development Project)

Fikru., Henok (Addis Ababa University, 2016)

Many diversion head-works for irrigation have been designed and constructed in the preceding years. Some of them are performing successfully, but it has been observed in various reports that some of the schemes have ...
Performance Assessment of Drainage Systems on Alemgena-Butajira Road

Tamiru, Alemu (Addis Ababa University, 2015-09)

This Master of Science thesis focuses on performance assessment of drainage structures on Alemgena-Butajira road segment. The main target of this research is to indicate a quantity of work that should have been done already, ...
Performance Assessment of Road Drainage Structures and Proposed Mitigation Measures: The case of Daleti-Odagodere Gravel Road in Benishangul-Gumuz Region

Kassa, Yifred (Addis Ababa University, 2013-11)

This thesis presents results of the assessment of drainage structures; performance on Daleti- Odagodere gravel road in Benishangul-Gumuz region and proposed mitigation measures. Mitigation measures were proposed based ...
Performance Assessment of Road Drainage Systems of Burayu Town

Bekele, Mulualem (Addis Ababa University, 2017-03)

The objective of the study is to assess the Performance of Drainage Systems of Road at Burayu Town Administration. The study employed both primary and secondary data collection. The primary data collection were observation ...
Performance Assessment of Storm Water Drainage Systems (Case study of Debere Berehan Town)

Eyosias, Birhanu (Addis Ababa University, 2018-12-10)

A drainage system degrades by multiple factors and its performance reduces in time. Since such infrastructure play a key role in preventing urban floods, their performance should be monitored and quantified. Debere Berehan ...
Performance Comparison of Conceptual Rainfall-Runoff Models on Muger Catchment (Abbay River Basin)

Tufa, Kumela (Addis Ababa University, 2011-01)

The research is aimed at conducting catchment modeling for better understanding of hydrologic functioning and runoff generation mechanisms of the Muger catchment and selecting the best conceptual rainfall-runoff model that ...
Performance Evaluation of Irrigation System (Welenchity Surface Irrigation Scheme)

Alemayehu, Serbessa (AAU, 2018-06)

Water scarcity is a potential constraint to produce more foods to meet the demands of increasing world population. One possible approach to conserve this scarce resource might be through improving the performance of ...
Planning and Operation of Hydropower Reservoir in Tekeze Basin Considering Hydrological Variability and Climate Change

Fikru, Fentaw (Addis Ababa University, 2018-09-24)

Reservoirs are built to manage surface water resources used to balance between water resources and demands. Water in the arid, semi-arid and other climate regions like Ethiopia has available finite, but the demand increases. ...

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