Feasibility of a new helical blade structure for a PV integrated wind turbine in a heat-driven swirling wind field
| Autor: | Mingxu Zhang, Zhaolin Gu, Yuanping He, Weijun Li, Kiwamu Kase, Junwei Su, Chuck Wah Yu |
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| Rok vydání: | 2019 |
| Předmět: |
Turbine blade
020209 energy 02 engineering and technology Computational fluid dynamics Turbine Industrial and Manufacturing Engineering law.invention 020401 chemical engineering law Photovoltaics 0202 electrical engineering electronic engineering information engineering 0204 chemical engineering Electrical and Electronic Engineering Civil and Structural Engineering Wind power Computer simulation business.industry Mechanical Engineering Photovoltaic system Building and Construction Pollution General Energy Electricity generation Environmental science business Marine engineering |
| Zdroj: | Energy. 185:585-598 |
| ISSN: | 0360-5442 |
| Popis: | A controllable heat-driven swirling wind turbine system was integrated with a photovoltaics (PV) system for energy generation in a heat-collecting shed. This is a brand-new type of a wind energy generation system; and a helical three-blade structure in a vertical axis was introduced. The stationary pre-rotation vanes have a variable diameter and a helical twist angle of 225°. A numerical simulation was conducted to investigate the feasibility of a wind turbine blade structure for efficient energy output for industrial application. The computational fluid dynamics (CFD) tool OpenFOAM was used to simulate the operating conditions of the wind turbine. The findings illustrated the efficacy of the new system. The new helical blade structure is efficient for wind energy output of the turbine in a swirling wind field. The simulation under different heat source temperatures illustrated that an increase in heat source temperature could increase the output efficiency of the wind turbine energy system. The increment in output efficiency could be up to 19.07% when the temperature rises from 40 K to 80 K. The PV-swirling wind integrated system was shown to be more economical than a single solar photovoltaic system because its investment payoff period could be shortened by 2 years. |
| Databáze: | OpenAIRE |
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