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Full-Text Articles in Mechanical Engineering
Modeling And Experiment Of Solar Crop Dryer For Rural Application, Dawit Abay Tesfamariam, Mulu Bayray Kahsay, Meseret Tesfay Kahsay, Ftwi Yohaness Hagos
Modeling And Experiment Of Solar Crop Dryer For Rural Application, Dawit Abay Tesfamariam, Mulu Bayray Kahsay, Meseret Tesfay Kahsay, Ftwi Yohaness Hagos
Ftwi Yohaness Hagos
An indirect passive convectional solar dryer consisting of a solar air heater and dryer chamber is designed, manufactured and tested for its performance. It plays a major role in reducing crop wastage and opens a way to food preservation. The area of the solar collector required to dry a batch of 10 kg of tomato within two days is calculated. The performance of the collector is improved through the use corrugated absorber to create turbulence for air flow and a highly insulating material to minimize heat losses. The thermal performance of the solar dryer is tested under the local weather …
Solar Energy Resource Assessment Of The Geba Catchment, Northern Ethiopia, Anwar Mahmud, Mulu Kahsay, Asfafaw Tesfay, Ftwi Hagos
Solar Energy Resource Assessment Of The Geba Catchment, Northern Ethiopia, Anwar Mahmud, Mulu Kahsay, Asfafaw Tesfay, Ftwi Hagos
Ftwi Yohaness Hagos
The global shift towards renewable energy is manifested in developing countries such as Ethiopia primarily because of continuous economic growth in the last two decades and secondly due to the vast untapped potential resources. In addition to other factors, the lack of accurate data of the resources has, however, hampered the development of solar energy technologies. The aim of this paper is to investigate the resource estimation by undertaking direct measurements at selected sites in the Northern part of Ethiopia. This paper presents an assessment of the solar energy resource based on the primary data collected between January 2011 and …