Air Age Equation Parameterized by Ventilation Grouped Time

Abstract:

Ventilation temperature-velocity-temperature gradient grouped time parameter and these parameterized air age equation are constructed to calculate air age, not only of a single ventilation but also of ventilations more than one type, combining with the celebrated average air age equation, based on study of ventilation and air age at a certain subway station platform in this paper. These new results meet well with those of Airpak simulated, which shows a new complete method to calculate air age by the average air age equation, and broaden the air quality audit theory in side of air age.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 449-452
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.449
• Online since: July 2014
• Authors: Wen Zhong Wu*
• Keywords: Air Age, Equation, Grouped Time Parameter, IAQ, Ventilation

References

[1] LI Xian-ting, SHI Wen-xing. Man-made environment [M]. Beijing: China architecture and industry press, 2006 (in Chinese).

[2] Li X T, Li X F, Zhu Y X. The mathematical modeling of air age [C]/ Proceedings of the International Symposium on Air Conditioning in High Rise Buildings'97, Shanghai, China, 1997: 241-246.

[3] Xianting Li, Dongning Li, Xudong Yang, et al. Total air age: an extension of the air age concept [J]. Building and Environment, 2003, 38 (3): 1263-1269.

DOI: 10.1016/s0360-1323(03)00133-1

[4] LU Yajun, MA Zuiliang, ZOU Pinghua. Heating, ventilation and air conditioning [M]. Beijing: China architecture and industry press, 2002 (in Chinese).

[5] WU Wenzhong, YOU Shijun. Optimizing air distribution to improve ventilation effectiveness at subway station platform [J]. Journal of Tianjin University, 2008, 41 (11): 1377-1382 (in Chinese).

[6] Wu wenzhong, You shijun. Wave Motion of Smoke in Subway Fire Environment [J]. Transactions of Tianjin University, 2009, 15 (3): 206-209.

DOI: 10.1007/s12209-009-0036-z

[7] WU Wenzhong, YOU Shijun. Analysis of smoke control zoning for an underground railway platform [J]. Journal of HV&AC, 2009, 39 (1): 127-129 (in Chinese).

[8] WU Wenzhong. Study on air age and smoke-control of fire at subway central-platform [D]. Tianjin: Tianjin University, 2009 (in Chinese).

[9] Tianjin subway company. Study on energy saving technology to environmental control system of Tianjin subway [R]. 2002 (in Chinese).

[10] The third railway survey and design institute of China. Feasibility study of Tianjin subway line 1 [R]. 2001 (in Chinese).

[11] Shanghai road and rail tunnel design institute. Environmental control system outline design of Tianjin subway line 1 [R]. 2001 (in Chinese).