A Study on the Application of a Wind Power Generation System Using Outdoor Air on the Rooftop and Indoor Ventilation

Title & Authors
A Study on the Application of a Wind Power Generation System Using Outdoor Air on the Rooftop and Indoor Ventilation
Lee, Yong-Ho; Park, Jin-Chul; Hwang, Jung-Ha;

Abstract
This study proposed a wind power generation system utilizing outdoor air on the rooftop and indoor ventilation, which would increase according to the building height, as a way to help to save energy consumption in a building by using wind power energy of the new renewable energy sources. The study measured the distribution of air currents and power generation according to the usage factor of exhaust pipes in the kitchen and bathroom and identified the elements to consider when applying a wind power generation system to buildings in order to use outdoor air on the rooftop increasing according to the height and the indoor ventilation produced in the facility vertical shafts inside the buildings by installing a wind power generation system on the rooftop. (1) The study measured the ventilation velocity of the kitchen hood and bathroom ventilation fan by changing the zone areas by the households according to the usage factor of [$\small{{\alpha}}$]=33~100%. As a result, the kitchen ventilation pipe generated the ventilation wind of 3.0m/s or more at the usage factor of [$\small{{\alpha}}$] 66% or higher, and the bathroom ventilation pipe generated ventilation velocity lower than 3.0m/s, the blade velocity of the wind power generator, even after the usage factor rose to [$\small{{\alpha}}$]=100%. (2) As the old bathroom ventilation pipe generated the ventilation velocity of 3.0m/s, the blade velocity of the wind power generator, even with the rising usage factor [$\small{{\alpha}}$], the application of an outdoor air induction module increased the ventilation velocity by 2.9m/s at the usage factor of [$\small{{\alpha}}$]=33%, 3.8m/s at the usage factor of [$\small{{\alpha}}$]=66%, and 3.6m/s at the usage factor of [$\small{{\alpha}}$]=100%. Thus the ventilation velocity of 3.0m/s, the blade velocity of the wind power generator, or higher was secured. (3) The findings prove that the applicability of a wind power generation system using outdoor air on the rooftop and indoor ventilation is excellent, which raises a need for various efforts to increase the possibility of its commercialization such as securing its structural stability according to momentary gusts on the rooftop and typhoons in summer and making the structure light to react to the wind directions of outdoor air on the rooftop according to the seasons.
Keywords
Rooftop outdoor air;Room exhaust;Wind Power Combined Ventilatior;Measurement of flow;Generation measurement;
Language
Korean
Cited by
References
1.
Lee, Y. H., Kim, S. Y., Park, J. C., Hwang, J. H., 2012, Analysis of Air Current Measurements at External Induction-Style Kitchen and Bathroom Vents, Journal of the Korean Solar Energy Society, Vol.32, No.6, pp76-84

2.
Lee, Y. H., Kim, S. Y., Park, J. C., Hwang, J. H., 2012, A Study on the Wind Power Generation Using Vertical Exhaust Air Duct of the High-Rise Apartments, Journal of the Korean Solar Energy Society, Vol. 32, No.3, pp 1-10

3.
Kim, S. Y., Lee, Y. H., Park, J. C., Hwang, J. H., 2012, Airflow measuring analysis the rooftop kitchen and bathroom exhaust duct of residential building, SAREK, Sumer Annual Conference, pp798-801

4.
Park, J. H., Kim, J. W., Song, Y. W., Park, J. C., Hwang, J. H., 2012, A Experimental Study on the Application of Small Wind Power System Combined Ventilator in Super High-rise Apartment, SAREK, Sumer Annual Conference, pp 725-728

5.
Shin, J. R., Park, J. J., Kim, H. Y., Kim, D. Y., 2012, Performance Study of Wind Augmentation Device for Building-integrated Wind Power, Journal of KFMA, Vol. 15, No. 4, pp. 42-49

6.
Nam, B. H., You, J. Y., You, G. P., Kim, Y. M., 2012, Wind-induced Variation of Velocity for Tall-building with Openings with the CFD Simulations, Journal of WEIK, Vol.15, pp. 209-214

7.
Kim, H. G., 2012, The Korea Wind Resource Map and Its Application System, Journal of WEIK, Vol. 15, pp. 11-15

8.
Roh, J. W., 2012, Study on Improvement of Thermal Environment by using Wind-driven Natural Ventilation on the Atrium, Journal of KSES, Vol. 32, No.1, pp. 40-47

9.
Jo, H. J., You, J. Y., You, K. P., Kim, Y. M., 2011, A Study of Wind energy Assessment according to number and geometry of inlet to top floor of Tall Building, Journal of AIK, Vol. 31, No.2, pp.107-108

10.
D. Y. Lee, 2010, A Study on Air Current Analysis for the Application of Wind Power Generation in High-Rise Building, Society of Air-Conditioning and Refrigerating Engineers of Korea 2010 Summer Symposium Collecti on of Dissertations

11.
B. R. Lim et al, 2008, A Study on Morphological Trend of Modern High-Rise Buildings, Architectural Institute of Korea Collection of Dissertations, v24 n12

12.
H. D. Chun, 2010, A Study on the Application Plan of Wind Power Generation System of High-Rise Buildings, Chung Ang University Graduate School, Master's Thesis