CO Diffusion Simulation in the Third Layer Construction of Main Power House

Author

Yu Yue ; Wang Xiao-ling ; Zhang Zi-qiang ; Li Tao

Author_Institution

Sch. of Civil Eng., Tianjin Univ., Tianjin, China

fYear

2009

fDate

20-22 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

CO Diffusion in main power house is a major influencing factor on construction management. Under forced ventilation, the CO diffusion of construction is investigated using a 3D high Reynolds number k - epsiv model. The wall roughness is considered in the wall function. Ventilation on the third layer of main power house of Xiangjiaba hydropower station with complex geometry is used as a case. The geometric structure has a decisive effect on airflow distribution. It is concluded that the CO concentration decreases gradually with the increasing of the ventilation time. However, isoconcentration curves have the same tendency after 1800s. The CO concentration meets the ventilation and dust-prevention health standard after 3249s. The prediction by the present model is confirmed by the experimental measurement by Nakayama.

Keywords

carbon compounds; civil engineering; dust; health and safety; hydroelectric power stations; ventilation; walls; 3D high Reynolds number k - epsiv model; CO concentration; CO diffusion simulation; Xiangjiaba hydropower station; airflow distribution; construction management; dust-prevention health standard; forced ventilation; geometric structure; isoconcentration curve; main power house; third layer construction; wall function; wall roughness; Civil engineering; Computational fluid dynamics; Computational modeling; Equations; Fluid dynamics; Hydroelectric power generation; Power engineering and energy; Power system modeling; Temperature; Ventilation;

fLanguage

English

Publisher

ieee

Conference_Titel

Management and Service Science, 2009. MASS '09. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-4638-4

Electronic_ISBN

978-1-4244-4639-1

Type

conf

DOI

10.1109/ICMSS.2009.5303514

Filename

5303514