CFD Investigation for Indoor Environment of a District Standard Room in Jinan City

Abstract:

This paper introduces the principle and characteristics of roof radiant cooling and displacement ventilation system, using numerical simulation method, the indoor airflow velocity and temperature field of the typical bedroom which uses the composite system in Ji'nan City under the different supply air velocity was calculated. The experimental results show that when the air temperature is 295.15K, to keep the indoor vertical temperature less than 3 °C, air speed should be greater than 0.1m/s and less than or equal to 0.3m/s, to provide reference for the application of roof radiant cooling and displacement ventilation system.

• Periodical: Applied Mechanics and Materials (Volumes 548-549)
• Pages: 1706-1711
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.548-549.1706
• Online since: April 2014
• Authors: Dong Yang, Qing Mei Wen*, Cong Ju Zhang, Xue Ting Liu, Shi Jun Wei
• Keywords: Composite Systems, Displacement Ventilation, Numerical Simulation, Roof Radiation

References

[1] Wenfei Wu, Junjun Chen, Xiaotong Wang. Study of Ventilation Effects and Amenity of Multipollution Source Displacement Ventilation[J]. Environmental Engineering, Vol. 20(2002), p: 69.

[2] Yanli Ren, Deying Li, Yufeng Zhang. Simulation and Analysis of the Radiant Floor Cooling and Displacement Ventilation System[J]. Journal of Shenyang Jianzhu University(Natural Science), 2008(11), p: 1066.

[3] Zhongzheng Suo. Numerical Simulation of Different Kinds of Air Distribution For the Indoor Environment Quality [D]. Chongqing University, 2005, 10.

[4] Qiongxiang Kong, Bingfeng Yu. Outlook for Underfloor Air Supply Systems in Office Buildings[J]. Heating Ventilating & Air Conditioning, Vol. 34(2004), p: 26.

[5] Xiao Hu, Xiao-ping Miao, Liang Kong. etc. Discussion on Underfloor Air Supply Systems Technology[J]. Energy-Saving Technology. 2007(5), p: 17-21.

[6] Lan Mai, Yan He. Underfloor Air Distribution System of Air Conditioning For Office Buildings[J]. Power Generation & Air Condition, 2003, (3): 31-34.

[7] Wuji Zhou, Desheng Li, Jinping Zhang. The underfloor air supply technology[J]. Popular Science & Technology, 2008, (5): 93-94.

[8] Ying Su, Guo-ming Shen, Jun-long Xie. Indoor Air Quality Study an Under-Floor Air-Conditioning System[J]. Power Generation & Air Condition, 2004, (1): 37-41.

[9] Tao Xu, Guomin Shen, Junlong Xie. Thermal Comfort Study of an Under-Floor Air-conditioning System[J]. Power Generation & Air Condition, 2004, (4): 27-30.