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EnglishIn current eolic research, small Darrieus VAWTs are attracting interest, due to the possibility to produce small machines with low visual impact and almost no noise. Darrieus turbines diffusion, however, is still hampered by the generally poor performance of these machines and particularly by their start-up and transient behavior. In this paper, a critical overview of the main design aspects of a small-size Darrieus is provided. More in details, experimental results and numerical simulations are exploited to stress the effect of the blade design (e.g. airfoil type, pitch angle, blade shape) and the turbine geometry (e.g. Aspect Ratio, solidity) on both the performance and the transient behavior of the machine. The main secondary effects are also analyzed, in order to quantify their relative impact. Finally, some general design criteria and trends for small Darrieus are proposed.
Critical aspects in the design of a small-size Darrieus wind turbine / L. FERRARI; A. BIANCHINI. - ELETTRONICO. - (2010), pp. 1-6. ((Intervento presentato al convegno World Renewable Energy Congress XI tenutosi a Abu Dhabi, UAE nel 25-30 September 2010.
| Titolo: | Critical aspects in the design of a small-size Darrieus wind turbine | |
| Autori di Ateneo: | ||
| Autori: | L. FERRARI; BIANCHINI, ALESSANDRO | |
| Anno di registrazione: | 2010 | |
| Titolo del libro: | Proceedings of the World Renewable Energy Congress (WREC) XI | |
| Titolo del congresso: | World Renewable Energy Congress XI | |
| Luogo del congresso: | Abu Dhabi, UAE | |
| Data del congresso: | 25-30 September 2010 | |
| Abstract: | In current eolic research, small Darrieus VAWTs are attracting interest, due to the possibility to produce small machines with low visual impact and almost no noise. Darrieus turbines diffusion, however, is still hampered by the generally poor performance of these machines and particularly by their start-up and transient behavior. In this paper, a critical overview of the main design aspects of a small-size Darrieus is provided. More in details, experimental results and numerical simulations are exploited to stress the effect of the blade design (e.g. airfoil type, pitch angle, blade shape) and the turbine geometry (e.g. Aspect Ratio, solidity) on both the performance and the transient behavior of the machine. The main secondary effects are also analyzed, in order to quantify their relative impact. Finally, some general design criteria and trends for small Darrieus are proposed. | |
| Handle: | http://hdl.handle.net/2158/396295 | |
| Codice ONU Sustainable Development Goals (SDG): | Goal 7: Affordable and clean energy | |
| Appare nelle tipologie: | 4a - Articolo in atti di congresso |
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