Model experiment study for ventilation performance improvement of the Wind Energy Fan system by optimizing wind turbines. (September 2020)

• Record Type: Journal Article
• Authors: Wang, Ziyun; Wang, Shiqian; Ren, Jiayou; Meng, Xi; Wu, Yuling
• Is Part Of: Sustainable cities and society. Volume 60(2020)
• Publication Date: 2020-09
• Subjects: Wind turbine -- Blade number -- Ventilation volume -- Transmission ratio; Sustainable urban development -- Periodicals; Sustainable buildings -- Periodicals; Urban ecology (Sociology) -- Periodicals; 307.76
• DOI: 10.1016/j.scs.2020.102212
• Languages: English
• ISSNs: 2210-6707

Abstract

Highlights: The Wind Energy Fan (WEF) has high-efficient utilization of wind energy. The performance of Wind Energy Fan with lift-type wind turbine and Drag-type was studied and compared. WEF-System with Drag-type wind turbine is easier to start up than with lift-type wind turbine. WEF-System with Lift-type wind turbine of 3 blades is relatively optimal. Abstract: The Wind Energy Fan system (WEF-System) can realize the efficient ventilation in underground engineering by utilizing wind energy to drive the axial fan with the vertical wind turbine directly. The wind turbine in WEF-System is a key equipment to catch the wind energy, its performance affects the ventilation performance of WEF-system directly. In this study, based on the characteristic analysis of vertical axis wind turbine, an experiment platform with the corresponding test system was established and the wind turbine was optimized to improve the ventilation performance of WEF-System by the type and the blade number. Experimental results showed the duct ventilation volumes for WEF-System with Lift-type wind turbine are 9.6 %∼25.3 % and 9.6 %∼15.2 % larger than those with Drag-type wind turbine under transmission ratios of 1:5.17 and 1:10, respectively. With increasing the blade number of Lift-type wind turbine, the duct ventilation volume of WEF-System reduces and WEF-System with Lift-type wind turbine of 3 blades is relatively optimal. This WEF-System is proved to an effective wind energy technology to realize the active utilization of wind energy in underground ventilation.