• Catchment Based Aerodynamic Performance Analysis of Small Wind Turbine Using a Single Blade Concept for a Low Cost of Energy 

      Kelele, Hailay Kiros; Nielsen, Torbjørn Kristian; Froyd, Lars; Kahsay, Mulu Bayray (Journal article; Peer reviewed, 2020)
    • Characterization of Aerodynamics of Small Wind Turbine Blade for Enhanced Performance and Low Cost of Energy 

      Kelele, Hailay Kiros; Frøyd, Lars; Kahsay, Mulu Bayray; Nielsen, Torbjørn Kristian (Peer reviewed; Journal article, 2022)
      During a turbine’s lifetime, minimizing the cost of power production should be the primary aim in addition to attaining high technical efficiency. Thus, this paper was aimed at enhancing the aerodynamic efficiency of a ...
    • Design and Development of Solar Thermal Injera Baking: Steam Based Direct Baking 

      Tesfay, Asfafaw H; Kahsay, Mulu Bayray; Nydal, Ole Jørgen (Journal article; Peer reviewed, 2014)
      Ethiopia, the second most populated country in Africa, meets 96% of its energy need from bio-mass and majority of this energy goes entirely to Injera baking. Injera, a pan-cake like bread that is consumed by most of the ...
    • Solar Energy Resource Assessment of the Geba Catchment, Northern Ethiopia 

      Mahmud, Anwar Mustefa; Kahsay, Mulu Bayray; Tesfay, Asfafaw H; Hagos, Ftwi Yohannes; Gebray, Petros; Kelele, Hailay Kiros; Gebrehiwot, Kindeya; Bauer, Hans; Deckers, Seppe; Baerdemaeker, Josse De; Driesen, Johan (Journal article; Peer reviewed, 2014)
    • Solar Powered Heat Storage for Injera Baking 

      Tesfay, Asfafaw H; Kahsay, Mulu Bayray; Nydal, Ole Jørgen (Journal article; Peer reviewed, 2014)
      Ethiopia with a population of about 85 million meets 96% of its energy needs with bio-mass, charcoal, wood, animal dung and plant residues. More than 50% of this energy goes entirely on baking Injera. Injera the national ...
    • Solar Water Heater with Temperature Control for 90˚C Water Requirement 

      Tømterud, Marte Maria (Master thesis, 2023)
      Solen er den rikeste energikilden på jorden, og på én enkelt time kan den gi energi tilsvarende menneskehetens årlige kraftbehov. Solinnstrålingens tetthet varierer rundt kloden, og de høyeste verdiene er å finne ved ...
    • Theoretical and Experimental Comparison of Box Solar Cookers with and without Internal Reflector 

      Kahsay, Mulu Bayray; Paintin, John; Mustefa, Anwar; Haileselassie, Asfafaw; Tesfay, Meseret; Gebray, Biniam (Journal article; Peer reviewed, 2014)
      Box solar cookers are commonly built with internal shee t metal painted black as an absorber. In order to increase the performance, a design which incorporates internal reflection is proposed in this paper. The aim of ...
    • Wind power for cooking 

      Finsås, Henrik Lund; Mjåtveit, Torbjørn Løvik (Master thesis, 2023)
      Tilgangen på elektrisitet i Tanzania har det siste tiåret vært av de raskest voksende i subsahariske Afrika, med en økende tilgang fra 7% til 37.7% mellom 2011 og 2020. Selv om tilgangen i urbane områder har nådd 73.2%, ...
    • Wind power for cooking 

      Finsås, Henrik Lund; Mjåtveit, Torbjørn Løvik (Master thesis, 2023)
      Tilgangen på elektrisitet i Tanzania har det siste tiåret vært av de raskest voksende i subsahariske Afrika, med en økende tilgang fra 7% til 37.7% mellom 2011 og 2020. Selv om tilgangen i urbane områder har nådd 73.2%, ...