Development of a small wind power system with an integrated exhaust air duct in high-rise residential buildings

Abstract This study explores the application of a small wind power system with an integrated exhaust air duct in super high-rise apartments. This is accomplished by designing and manufacturing the diameter of the exhaust air duct such that it can be connected with the exhaust employed for both the living rooms and bathrooms of the apartments. Additionally, the Venturi exhaust air duct cap is designed to be in the shade to prevent turbulent and counter flows of the blade. The shape of the blade is designed as a double-wing structure. The structure consists of Savonius and Darrieus shapes combined with a horizontal axis for installation on the exhaust air duct. The results from the test-bed tests are obtained after the installation of the designed and manufactured small wind power system with the combined exhaust on the rooftop of a building with 15 floors (53.1 m high, 90 m above sea level). The electricity generated by the designed system is thrice that of a general small-size wind energy system for the average external wind velocities of 0.9 m/s, 1.2 m/s, and 1.3 m/s (maximum wind velocity was 2.3 m/s). The energy generated from the installation of this system on a super high-rise apartment with a height of 100 m is also predicted. The results indicate that the generated electricity of the proposed small wind power system with integrated exhaust air duct is 1.7–1.9 times higher than that of the other systems tested. Especially, the generation of electricity increases by 9.9% and 6.2% for heights of 200 m and 300 m, respectively. This was based on the results for 100 m super high-rise buildings.

[1]  Ismail Daut,et al.  Power Generation Roof Ventilator , 2011 .

[2]  Wenwen Yang,et al.  The transport of gaseous pollutants due to stack and wind effect in high-rise residential buildings , 2015 .

[3]  Wen Tong Chong,et al.  Design of an exhaust air energy recovery wind turbine generator for energy conservation in commercial buildings , 2014 .

[4]  Patrick James,et al.  Urban energy generation: Influence of micro-wind turbine output on electricity consumption in buildings , 2007 .

[5]  Lei Peng,et al.  Review on the Fire Safety of Exterior Wall Claddings in High-rise Buildings in China☆ , 2013 .

[6]  박진철,et al.  초고층 공동주택의 소형풍력발전시스템 적용을 위한 수직연도 활용에 관한 연구 , 2011 .

[7]  Lin Lu,et al.  Investigation on the feasibility and enhancement methods of wind power utilization in high-rise buildings of Hong Kong , 2009 .

[8]  Luis Pérez-Lombard,et al.  A review on buildings energy consumption information , 2008 .

[9]  Insung Lee,et al.  The design and testing of a small-scale wind turbine fitted to the ventilation fan for a livestock building , 2013 .

[10]  Francesco Balduzzi,et al.  Feasibility analysis of a Darrieus vertical-axis wind turbine installation in the rooftop of a building , 2012 .

[11]  Lin Lu,et al.  Investigation on wind power potential on Hong Kong islands—an analysis of wind power and wind turbine characteristics , 2002 .

[12]  Jonathan Whale,et al.  Performance and safety of rooftop wind turbines: Use of CFD to gain insight into inflow conditions , 2014 .

[13]  Wen Tong Chong,et al.  Early development of an energy recovery wind turbine generator for exhaust air system , 2013 .

[14]  Yi Li,et al.  Implementing wind turbines in a tall building for power generation: A study of wind loads and wind speed amplifications , 2013 .

[15]  Tim Sharpe,et al.  Crossflex: Concept and early development of a true building integrated wind turbine , 2010 .

[16]  Myoung-Souk Yeo,et al.  Characteristics of pressure distribution and solution to the problems caused by stack effect in high-rise residential buildings , 2007 .

[17]  Lin Lu,et al.  Wind power evaluation and utilization over a reference high-rise building in urban area , 2014 .

[18]  Vernon Ireland,et al.  The role of managerial actions in the cost, time and quality performance of high-rise commercial building projects , 1985 .