Numerical Analysis on the Influence of Thermal Insulation Way of Closure on Smoke Flow Properties in Building Fire

Abstract:

The fire smoke flow prediction software developed successfully was applied to simulate a simple building. The effect of different wall structures on the fire smoke flow properties were compared under the condition of same thermal resistance of external wall. Heat absorption of wall has a cooling effect on indoor air in fire process. Wall with external insulation has the most significant cooling effect on indoor air, and that with internal insulation has the weakest. The effect of intermediate insulation is close to external insulation and that of bilateral insulation close to internal insulation. Room temperature and smoke concentration of internal insulation are both higher markedly than of external insulation. The effect of intermediate insulation is close to external insulation and bilateral insulation close to internal insulation. External insulation added to the closure helps to cool indoor air in the fire process. Intermediate insulation should be chosen to add to the inner wall when needed because of the uncertainty of fire location.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 3020-3024
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.3020
• Online since: August 2013
• Authors: Xuan Wei Peng
• Keywords: Building Energy Saving, Building Fire, Heat Insulation way, Numerical Analysis, Smoke Concentration, Smoke Temperature

References

[1] Yong Lan, Chaojun Wan. Journal of Chongqing Institute of Technology: Natural Science, Vol. 22(6), (2008), P. 31-34. (In Chinese).

[2] LIZS, LUSH, G Q Zhang, et al. Investigation on building external insulation facade system energy saving techniques in hot summer/warm winter, zone [C]/International workshop on energy and environment of Residential Building 2007, January 15-16, Harbin, China. Harbin, China: [s. n. ], (2007).

[3] Gillian A. Concrete Engineering International, Vol. 9(4) , (2005), P. 20-22.

[4] GB50189—2005, Design standard for energy efficiency of public buildings. (In Chinese).

[5] JGJ26—2010, Design standard for energy efficiency of residential buildings in severe co1d and cold zones. (In Chinese).

[6] JGJ134—2010, Design standard for energy efficiency of residential buildings in hot summer and co1d winter zone. (In Chinese).

[7] JGJ75—2003, Design standard for energy efficiency of residential buildings in hot summer and warm winter zone. (In Chinese).

[8] JGJ129—2000, Technical Specification for Energy Conservation Renovation of Existing Heating Residential Building. (In Chinese).

[9] Chuntao Xu, Jiahui Peng, GUO Lian-wei, LI Ya-mei. Construction Conserves Energy, Vol. 35(12), (2007), P. 14-17+24. (In Chinese).

[10] Jianliu Xu. Jiangsu Construction, Vol. (6), (2007), P. 42-43. (In Chinese).

[11] Xuanwei Peng, On Application of Sub-models of Heat Transfer to Network Model of Fire, the Solution and the Convergence[Dissertation], Chongqing: Chongqing University, Faculty of Urban Construction and Environmental Engineering, (2005).

[12] Xuanwei Peng. Comparison of sub-models of heat transfer in network model of fire. 2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011-Proceedings, (2011), P. 5660-5662. (In Chinese).

DOI: 10.1109/mace.2011.5988312

[13] Zhi-jun Yan. Journal of Chongqing Jianzhu University, Vol. 17(2), (1995),P. 23-30. (In Chinese).

[14] Zhi-jun Yan. Journal of Chongqing Jianzhu University, Vol. 18(3), (1996), P. 1-7. (In Chinese).

[15] Zhi-jun Yan. Journal of Chongqing Jianzhu University, Vol. 19(5), (1997), P. 107-111+130. (In Chinese).

[16] Jialing Luo, A Method for Calculation on Properties of Fire Smoke Flow in Building and application software compiling [Dissertation]. Chongqing: Chongqing University, Faculty of Urban Construction and Environmental Engineering, (2001).

[17] Qing Luo, Experimental Research on Properties of Fire Smoke Flow in Building and Modification of the Application Software [Dissertation]. Chongqing: Chongqing University, Faculty of Urban Construction and Environmental Engineering, (2002).

[18] Yuanyi Xie, WANG Hou-hua. China Safety Science Journal, Vol. 1(16), (2006), P. 88-92. (In Chinese).