Numerical simulation and optimization design for ceiling supply air of an underground main workshop in hydropower station

Zhang, Hualing; Fu, Xiangzhao; Ma, Xiaowen

doi:10.65582/set.2003.065

SET Proceedings

Volume 2, Book 1, 2003, Article 2003.065

Conference paper

Numerical simulation and optimization design for ceiling supply air of an underground main workshop in hydropower station

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1College of Applied technology Chongqing University, Chongqing 400030, P.R.China

Published: 24 October 2003
Pages: 291-296
DOI: 10.65582/set.2003.065
Access: Open access, © 2003 Copyright WSSET

Published 24 October 2003Pages 291-296doi.org/10.65582/set.2003.065

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Abstract

The indoor air distribution of an underground main workshop in hydropower station with different number, location and size of inlets and velocity of supply air were simulated by using the way of computational fluid dynamics (CFD). The air velocity, temperature and their standard deviation of 18 kinds of supply air schemes in the occupied region of the main workshop were obtained. By comparing to these schemes, it is shown that the air distribution with 60 inlets of two lines of symmetry location and supplying velocity of 7.8 m/s is preferable. In addition, a reasonable design method is proposed according to the large volume of supply air and duct of cross-section size in the underground main workshop. Valuable scheme is given for ventilation and air conditioning design of the hydropower station in inviting bids stage.

Keywords. numerical simulation; air distribution; manifold duct; resistance calculation

References

Fu Xiangzhao. Research of ceiling air supply in underground water powerhouse. Heating Ventilation & Air conditioning, 1996.1:59~62.
Murakami, S., S. Kato, and Y. Suyama. Three-dimensional numerical simulation of turbulent airflow in ventilated room by means of two-equation model. ASHRAE Transactions 93(2):621-642.
Zhao Bin, Li xianting and Yan Qisen. Influence of Turbulence Parameters at supply opening on Indoor Air Distribution. Architecture Heat Energy Ventilation & Air conditioning, 2000.1:1~4.
Tao Wenquan. Numerical Heat Transfer. Xian: Publishing house of Xian transportation university,2001.
Zhao Rongyi, Fan cunyang. Air Conditioning. Peking: Publishing house of China construct industry,1999.
Chen Caikan. Computational fluid Dynamics. Chongqing: Publishing house of Chongqing ,1992.
Sun Yijian. Industrial Ventilation. Peking: Publishing house of China construct industry, 1995.

How to cite this article

Zhang, H., Fu, X. and Ma, X. (2003). 'Numerical simulation and optimization design for ceiling supply air of an underground main workshop in hydropower station'. SET Proceedings, 2(1), pp. 291-296. https://doi.org/10.65582/set.2003.065