• DESIGN AND PERFORMANCE INVESTIGATION ON ROUGHENED SOLAR-ABSORBER DRYER 

  Urmale, Wegaso Kambo (2024-08)

  Solar air heaters have been used for many purposes requiring low to medium grade thermal energy, mainly due to their low manufacturing cost, simple design and operation, and maintenance. Their usefulness and the quantitative ...
• Optimization of Modified Bach-Type Savonius Wind Turbine With Obstacle Shielding and Deflector Plate Using Gentic Algorithm and NLopt 

  Biniam, Tewbo (2024-06)

  The Savonius wind turbine is a drag-based vertical axis wind turbine and is used as an alternative source in small-scale energy generation. Design simplicity, low cost, easy installation, good starting ability, relatively ...
• DEVELOPMENT AND EXPERIMENTAL TESTING OF THE PERFORMANCE OF SOLAR DRYER EQUIPPED TO EVACUATED TUBE COLLECTOR WITH INTEGRATION OF ROCK BED AND REFLECTORS: (CASE OF POTATO SLICE DRYING) 

  Semahagn, Yematawu Desta (2023-03-07)

  Several researchers have attempted to enhance the performance of solar dryers by adding different features to the air heating system. Besides, developing a solar dryer supposed to sustain the drying operation even ...
• Experimental and numerical performance analysis of a spiral pipe flat plate solar collector using nanofluids. 

  Hailegiworges, Nigatu (2022-10)

  Existing Flat plate solar thermal collectors suffers from comparatively low efficiency. This clearly indicates that further research is still needed in the area to improve efficiency of those types of ...
• Numerical Investigation of Louver Edge and Slant Angle Effect on the Performance of Louver Fin Compact Heat Exchanger for Radiator 

  Dessalew, Shite Feleke (2023-03)

  The rectangular channel louvered-fin compact heat exchanger (LFCHE) is the most efficient heat exchanger fin that has been used as a radiator fin. However, with this sort of heat exchanger, the pressure drop rises by ...
• Multi-objective optimization of a Fibonacci Phyllotaxis micro pin fin heat sink. 

  Ayechew, Shemelash Aklilu (2022-09-26)

  Despite impressive advances being made in the past decades, there are still genuine technical challenges in the thermal administration of electronic devices or microprocessors. The performance and reliability ...
• DESIGN, MANUFACTURING AND EXPERIMENTAL INVESTIGATION OF SOLAR COOKER USING PARABOLIC DISH- COLLECTOR WITH A THERMAL ENERGY STORAGE SYSTEM FOR INDOOR COOKING APPLICATION. 

  Mulat, Shitye Alem (2022-02)

  Global warming as a result of greenhouse gas emissions is a hot topic that has been discussed repeatedly. Traditional cooking methods are a source of greenhouse gas emissions, which also contribute to deforestation. ...
• DESIGN AND EXPERIMENTAL INVESTIGATION OF SOLAR COOKER BY USING AIR AS A HEAT TRANSFERRING FLUID 

  MATEBU, LIMENEH BELEW (2022-06)

  Solar cookers are heat exchanging devices which can used for converting solar energy to cooking, replacing traditional way of cooking. The problems to consider while designing solar cookers which can be address to the ...
• Investigate the humidification potential of different mist size particle to preserve & store fresh fruit 

  Elias, Addisu (2022-03-14)

  Ethiopia’s wide range of agro-climatic conditions and soil types make it suitable for the production of diverse verities of fruits including tropical and subtropical fruits, around 47 thousand hectares of land are under ...
• DESIGN, FABRICATION AND EXPERIMENTAL INVESTIGATION OF THE THERMAL PERFORMANCE OF FLAT PLATE SOLAR WATER HEATER WITH MODIFIED COLLECTOR 

  EDEN, HABTEMARIAM DUBALE (2022-02)

  Solar collector is one of the solar energy technologies that has been used in the world. This simple device like flat plate solar collector can convert the solar energy into heat energy. However, solar collector’s ...

• DESIGN AND PERFORMANCE INVESTIGATION ON ROUGHENED SOLAR-ABSORBER DRYER 

  Urmale, Wegaso Kambo (2024-08)

  Solar air heaters have been used for many purposes requiring low to medium grade thermal energy, mainly due to their low manufacturing cost, simple design and operation, and maintenance. Their usefulness and the quantitative ...
• Optimization of Modified Bach-Type Savonius Wind Turbine With Obstacle Shielding and Deflector Plate Using Gentic Algorithm and NLopt 

  Biniam, Tewbo (2024-06)

  The Savonius wind turbine is a drag-based vertical axis wind turbine and is used as an alternative source in small-scale energy generation. Design simplicity, low cost, easy installation, good starting ability, relatively ...
• DEVELOPMENT AND EXPERIMENTAL TESTING OF THE PERFORMANCE OF SOLAR DRYER EQUIPPED TO EVACUATED TUBE COLLECTOR WITH INTEGRATION OF ROCK BED AND REFLECTORS: (CASE OF POTATO SLICE DRYING) 

  Semahagn, Yematawu Desta (2023-03-07)

  Several researchers have attempted to enhance the performance of solar dryers by adding different features to the air heating system. Besides, developing a solar dryer supposed to sustain the drying operation even ...
• Experimental and numerical performance analysis of a spiral pipe flat plate solar collector using nanofluids. 

  Hailegiworges, Nigatu (2022-10)

  Existing Flat plate solar thermal collectors suffers from comparatively low efficiency. This clearly indicates that further research is still needed in the area to improve efficiency of those types of ...
• Numerical Investigation of Louver Edge and Slant Angle Effect on the Performance of Louver Fin Compact Heat Exchanger for Radiator 

  Dessalew, Shite Feleke (2023-03)

  The rectangular channel louvered-fin compact heat exchanger (LFCHE) is the most efficient heat exchanger fin that has been used as a radiator fin. However, with this sort of heat exchanger, the pressure drop rises by ...
• Multi-objective optimization of a Fibonacci Phyllotaxis micro pin fin heat sink. 

  Ayechew, Shemelash Aklilu (2022-09-26)

  Despite impressive advances being made in the past decades, there are still genuine technical challenges in the thermal administration of electronic devices or microprocessors. The performance and reliability ...
• DESIGN, MANUFACTURING AND EXPERIMENTAL INVESTIGATION OF SOLAR COOKER USING PARABOLIC DISH- COLLECTOR WITH A THERMAL ENERGY STORAGE SYSTEM FOR INDOOR COOKING APPLICATION. 

  Mulat, Shitye Alem (2022-02)

  Global warming as a result of greenhouse gas emissions is a hot topic that has been discussed repeatedly. Traditional cooking methods are a source of greenhouse gas emissions, which also contribute to deforestation. ...
• DESIGN AND EXPERIMENTAL INVESTIGATION OF SOLAR COOKER BY USING AIR AS A HEAT TRANSFERRING FLUID 

  MATEBU, LIMENEH BELEW (2022-06)

  Solar cookers are heat exchanging devices which can used for converting solar energy to cooking, replacing traditional way of cooking. The problems to consider while designing solar cookers which can be address to the ...
• Investigate the humidification potential of different mist size particle to preserve & store fresh fruit 

  Elias, Addisu (2022-03-14)

  Ethiopia’s wide range of agro-climatic conditions and soil types make it suitable for the production of diverse verities of fruits including tropical and subtropical fruits, around 47 thousand hectares of land are under ...
• DESIGN, FABRICATION AND EXPERIMENTAL INVESTIGATION OF THE THERMAL PERFORMANCE OF FLAT PLATE SOLAR WATER HEATER WITH MODIFIED COLLECTOR 

  EDEN, HABTEMARIAM DUBALE (2022-02)

  Solar collector is one of the solar energy technologies that has been used in the world. This simple device like flat plate solar collector can convert the solar energy into heat energy. However, solar collector’s ...
• Numerical and experimental investigation on the performance of plant leaf mimetic 4D printed wind turbine blade 

  Abraham, Adera Bezabih (2022-04)

  We performed a multidisciplinary research of plant leaf inspired wind turbine blade by 4D printing. We conducted airfoil selection sizing of tapper sections of the leaf main vein using Matlab iteration. The research ...
• DESIGN, FABRICATION AND EXPERIMENTAL INVESTIGATION OF SOLAR STILL INTEGRATED WITH PARABOLIC TROUGH COLLECTOR FOR PRODUCING POTABLE WATER 

  ZELALEM, WUDU (2021-08-24)

  Water is considered as the source of life for all life forms on the face of the earth. Due to water related diseases, in the earth, 3.575 million people are dying each year. One of the key approaches to overcome this ...
• INVESTIGATING THE THERMAL PERFORMANCE IMPROVEMENT OF SOLAR AIR HEATER USING FLAT PLATE REFLECTORS ON THE SIDES AND CONTINUOUS V-SHAPED RIBS ON ABSORBER PLATE 

  YIGERMAL, MULUGETA AMARE (2021-11)

  In this study, the effect of solar reflector on the solar air heater efficiency integrated with a continuous V-shaped ribs as roughness parameter is investigated experimentally and numerically. Continuous V-shaped ...
• EXPERIMENTAL INVESTIGATION OF BIODIESEL PRODUCED FROM JATROPHA OIL BY USING NaOH IMPREGNATED WITH ACID TREATED FLY ASH CATALYST 

  TSEGAYE, CHEMERE TEKLIE (2021-10)

  By taking into account its high amount of oil in its seeds (1892 L/ha), competitiveness with food, planting conditions and drought resistance, jatropha curcas oil is the best to be a raw material for the production ...
• Experimental and Numerical Analysis of Convective Heat Transfer of Nanofluids 

  Saleamlak, Mulu Asfaw (2021-12-20)

  A nanofluid is a new heat transfer fluid produced by mixing a base fluid and solid nano sized particles. It has been reported this fluid has great potential in heat transfer applications, because of its increased ...
• DESIGN AND DEVELOPMENT OF SIDELOADED BOX TYPE MULTI-SHELF INCLINED SOLAR COOKER AND DRYER 

  MINWYLET, CHEKOL WORKNEH (2022-02-09)

  This research describes the design and development of a multi-shelf inclined solar cooker and dryer (ISCAD) with three reflectors and manufactured from locally available materials. The box cooker has outer box dimensions, ...
• EXPERIMENTAL INVESTIGATION AND SIMULATION OF TURBULENT HEAT TRANSFER IN DOUBLE PIPE HEAT EXCHANGER WITH LOUVERED TURBULETOR 

  GETAHUN, LAKE ABEBE (2021-11-12)

  In this study, heat transfer in a horizontal double pipe heat exchanger, with air and water as the working fluid have been increased by means of louvered turbulator. In the experimental set up, a galvanized steel iron ...
• ENHANCEMENT OF COOLING PERFORMANCE OF ELECTRONICS PROCESSOR USING GREEN SYNTHESIZED SILVER-WATER NANOFLUID 

  GEBREMESKEL, TSEGAYE (2021-11-04)

  Development in electronic equipment comes with a serious challenge to provide efficient thermal management solutions due to increased data processing requirements and miniaturization. The aim of this study is to examine ...
• ENHANCING BIOGAS YIELD BY USING IRON OXIDE AND HUMAN URINE 

  FITSUM, ABAYNEH MULATU (2021-09)

  Biogas is a naturally occurring, environmentally friendly fuel. It is mainly made up of a mixture of methane and carbon dioxide that is produced naturally when organic materials degrade in anaerobic conditions, such ...
• INVESTIGATINGTHE PERFORMANCE IMPROVEMENT OF ELECTRICAL INJERA BAKING MITAD USING STEEL POWDER AS ADDITIVE MATERIAL WITH GYPSUM INSULATOR 

  ALTASEB, KEGNE SISAY (2021-09)

  Electric Injera baking mitads are the most prevalent and energy intensive appliances used in Ethiopia and encounters bulk amounts of heatloss. Even though it is inefficient, the apparatus has high market penetration ...

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