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Analyzing the Effect of Oxide Scale Growth on Creep Behavior and Rupture Time of Superheater Tube Boiler Thesis

Ermiyas Tefera; Mesay Alemu; Johnson Santhosh (2023-06-02)

One way of increasing boiler efficiency is by increasing the working pressure and temperature of steam. But higher operating temperature and pressure leads to the formation and growth of steam side oxide scale. The growth ...

Prediction of tensile strength in fused deposition modeling process using artifcial neural network and fuzzy logic Article

Tura, Amanuel Diriba; Mamo, Hana Beyene; Santhosh, A. Johnson (2022-09-15)

Fused deposition modeling is a modern rapid prototyping technique that is used for swiftly replicating concept modeling, physical modeling, and end-of-line manufacture. Precision parameter selection is crucial for ...

Optimal Design and Techno-Economic Analysis of Grid-connected PV power System for Industry Park under grid outages Article

Azerefegn, Tefera Mekonnen; Bhandari, Ramchandra; Ramayya, Venkata (2019-08-15)

The existing distribution system of Ethiopia has encountered frequent power outages. During this outage, the critical load of most firms in the country is supplied by diesel fuel. This study examines the feasibility ...

Optimization and thermal analysis of friction stir welding on AA6061 aluminum alloys Article

Melaku, Lingerew E.; Tura, Amanuel D.; Mamo, Hana B.; Santhosh, A. Johnson; Ashok, N. (2022-06-06)

This research focuses on the thermal analysis and optimization of FSW AA 6061 alloy joints at various welding speeds, rotational speeds, and tool geometry. Tool shoulder (concave and flat) and tool probe (ta pered and ...

Parametric Investigation of Continuous Drive Friction Welding of Dissimilar Steel Bars (AISI 304H and AISI 4130) Thesis

Kinfe Weldetnsae; Anil Kumar; Lingerew Enbakom (2020-08)

Friction welding is a solid-state joining process that merges materials under compressive force contact of workpieces rotating or moving relative to one another. Conventional fusion welding of dissimilar steel bars is ...

Optimization and Fatigue Analysis of Front Axle Beam Truck Using FEM Thesis

UMER, MUHABA MASHA’ALLAH; Santosh, Johnson; Ahmed, Yahya (2022-06-12)

The vehicle industry is a vital part of the global economy. The front axle beam is one of the major parts of the vehicle suspension system. About 35 to 40 percent of the total vehicle weights are taken up by the front ...

Synthesis and Optimization of Biodiesel from Bracissa Carinata A.Braun Seed by using Calcium Oxide as Catalyst Thesis

Regesa, Asegu; Amare Zeru, Balewgize; Girma, Demeke (2023-03-12)

Biodiesel is simply the monoalkyl esters of vegetable oils, animal fats, or cooking grease .The majority of energy demand is met by conventional fuels, but they are depleting at an alarming rate. However, researchers ...

Fatigue Performance Investigation of Centrifugal Water Pump Shaft. Thesis

Tesfaye, Leta Yadeta; Lemu, Hirpa G.; K/Mariam, Adissu (2022-12-28)

Pump is a mechanical device that applies energy to move liquids from one place to another at increased pressure, flow rate and to an elevated height. The pumps can be divided into two general categories, namely dynamic ...

Optimization of CNC turning parameters using face centred CCD approach in RSM and ANN-genetic algorithm for AISI 4340 alloy steel Article

Santhosh, A. Johnson (2021-07-28)

AISI 4340 alloy steel is used in a wide range of industrial applications due to its improved hardness, toughness, fatigue, and wear resistance. The surface roughness of AISI 4340 alloy steel components in a typical CNC ...

Contact temperature analysis of the classical Geneva mechanism through numerical methods Article

Ambaye, Getachew A; Lemu, Hirpa G.; Tolcha, Mesay A (2022-09-22)

Multi-Objective Optimization of Fused Deposition Modeling Process Parameters For Printing Acrylonitrile- Butadiene-Styrene Polymer Parts Thesis

Girum, Tarekegn Hailu; Alemu, Mesay; Beyene, Hana (2023-01-24)

The Fused deposition modeling (FDM) is one of the widely used additive manufacturing process to produce prototypes as well as functional parts from thermoplastics. However, the application of FDM is still limited for ...

INFLUENCE OF ROUTE-R ON AL-6061 ALLOY MECHANICAL PROPERTIES THROUGH EQUAL CHANNEL ANGULAR PRESSING Thesis

Gebrehiwot, Tensay Mitikneh; Alemu, Mesay; Balakrishnan, Praveen (2023-01-16)

There are numerous ways to enhance the mechanical properties of aluminum, but se vere plastic deformation (SPD) processing of materials has drawn a lot of attention in the research community in recent years because of the ...

Optimizing the production line using Monte Carlo method for Jimma Industrial Park; case of medium scale shoes factory. Thesis

Tsigie, Afework; Alemu, Mesay; R.K, Srinivasa (2023-01-19)

This thesis was carried out in Jimma Industrial Park of medium scale shoes factory. The aim with this thesis is to increase the production line performance accordingly minimize the waiting time. Production line is often ...

Experimental and parametric Investigation of Submerged Friction Stir Welding of 6063 Aluminium Alloy Thesis

Abtaye, Abenezer; Alemu, Mesay; Enbakom, Lingerew (2023-01-16)

Several welding processes have been developed over time, however welding aluminium alloys has always been difficult using traditional welding techniques because of its low melting temperature. In addition to this some ...

Analytical and Numerical Analysis of Fatigue Life Estimation of Shot Peened Spur Gear Thesis

Lambebo, Temesgen (2023-01-16)

A spur gear was the most simple, widely used, and efficient type of gear. They were subjected to bending fatigue failure. The bending fatigue failures began at or near the tooth root sur face of the gear. Shot peening was ...

Performance Analysis and Simulation of Savonius Wind Turbine for Small-Scale Water Pumping System Thesis

Negewo, Abeba (2022-12-12)

Water is the most important source of life, and it is presently accessed through pumps. Centrifugal and positive displacement pumps are two types of pumps, with electrical, diesel, and renewable energy sources (Solar ...

Optimization of Electric Injera Baking Pan by Appending Gray Cast Iron Powder and Performance Evaluation through CFD Simulation Thesis

Bete, Betelhem Tekeba; Amare, Balewgize; Kahsay, Abraha (2022-07-24)

In Ethiopia injera is the most dominant meal but, injera baking is an energy intensive process. Currently, electrical energy source is used in and around cities to bake injera, due to environmental impact, health issue, ...

ENERGY POTENTIAL ASSESSMENT AND TECHNO-ECONOMIC ANALYSIS OF MICRO-HYDRO INTEGRATED WITH PHOTOVOLTAIC FOR RURAL ELECTRIFICATION: CASE STUDY OF GODA WARKE VILLAGE Thesis

Feyissa, Ephrem Assefa; Tibba, Getachew Shunki; Limore, Tarekegn (2022-07-14)

Rural areas have a high resource of hydropower energy generation system. However, using such systems has the seasonal changes and bad topographical position of the river flowing. Even though Ethiopia has abundant ...

Design optimization through performance investigation of diffuser augmented wind turbine using CFD Article

Teklemariyem, Debela Alema; A. Zeru, Balewgize; Tadese, Eshetu (2022-08-13)

Currently, developed and developing countries are investing many resources in the development of renewable energy to harness the global ef ects of the planet’s energy. Among these renewable energy types, the most ...

Design, CFD modeling and prototype testing of husk biomass cook stove Article

Tibesso, Adem; A. Zeru, Balewgize; Alemu, Endeshaw (2022-07-08)

Around 2.7 billion people across the world consume solid biomass fuel for heating, cooking, and other daily energy demands. In developing countries, biomass fuels are mainly burned in open fields as waste materials. ...

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