Title :
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
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;
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
DOI :
10.1109/ICMSS.2009.5303514
