Design and performance evaluation of a 10W pico-hydro portable turbine using computational analysis
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The fast-developing world requires significant amounts of energy while conventional fossil fuel is gradually being depleted. Hydropower increasingly proves its potential not only as an environmentally friendly source of energy, but also one that is affordable to supply a considerable part of the world’s energy demand. This research focuses on the development of a 10W pico-hydro portable turbine, which can be used not only for leisure activities, but also for emergency life safety systems. The rotor blade is designed based on the blade element momentum theory by employing a modification of NREL S815 airfoil. Accordingly, the turbine was analyzed with the computational fluid dynamics approach with an appropriate setup model. The power coefficient of the turbine peaked at 0.37 at a rated tip speed ratio of 2 when it was used without casing. The flow pattern and wake formation behind the turbine were taken into consideration. A comparison of the extracted power under different incoming velocity conditions was also conducted and presented in this paper.
Abstract
The fast-developing world requires significant amounts of energy while conventional fossil fuel is gradually being depleted. Hydropower increasingly proves its potential not only as an environmentally friendly source of energy, but also one that is affordable to supply a considerable part of the world’s energy demand. This research focuses on the development of a 10W pico-hydro portable turbine, which can be used not only for leisure activities, but also for emergency life safety systems. The rotor blade is designed based on the blade element momentum theory by employing a modification of NREL S815 airfoil. Accordingly, the turbine was analyzed with the computational fluid dynamics approach with an appropriate setup model. The power coefficient of the turbine peaked at 0.37 at a rated tip speed ratio of 2 when it was used without casing. The flow pattern and wake formation behind the turbine were taken into consideration. A comparison of the extracted power under different incoming velocity conditions was also conducted and presented in this paper.
참고문헌 (13)
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