Numerical Simulation Flow and Temperature Fields of Fiber Air Dispersion System

Abstract:

Fiber air dispersion system (FADS) is an advanced flexible ventilation terminal in ventilated areas. Its benefits are numerous, which are air diffusion without feeling, anti-condensation, easy cleaning and low cost etc. The technology of computational fluid dynamics (CFD) was used in this paper. At first, a physical model of the environment conditioned by FADS was built. Then, the both field of temperature and flow in the environment was simulated. The boundary conditions and parameters was measured and calculated. Finally, the numerical results were verified by comparing with the experiment data to confirm the reliability of the model. Meanwhile, by using the indoor air evaluation standard, FADS was confirmed to provide a more comfortable environment and better air quality.

• Periodical: Key Engineering Materials (Volume 671)
• Pages: 242-247
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.671.242
• Online since: November 2015
• Authors: Meng Zhang, Xiao Hong Zhou*
• Keywords: Fiber Air Dispersion System, Flow Field, Numerical Simulation, Temperature Field

References

[1] H.W. Zhu, Application of fabric air dispersion system in engineering project, Refrigeration air conditioning & electric power machinery. 30 (2009) 12-14.

[2] X.Q. Xing, Numerical simulation air supply characteristics of fabric air dispersion systemin penetration mode, Zhejiang Sci-Tech University. (2014)10-12.

[3] P. V. Nielsen, Topp C. & Sonnichsen M, Air distribution in rooms generated by a textile terminal parison with mixing and displacement ventilation, Ashrae Trans. 8 (2005) 733-739.

[4] P. V. Nielsen, C.E. Huldgaard, & A. Melikov, Personal exposure between people in a room ventilated by textile terminals with and without personalized ventilation, HVAC & R Research. 13 (2007) 635-643.

DOI: 10.1080/10789669.2007.10390976

[5] C. Liu, Comparative study of traditional air supply system and fabric air dispersion system, Huazhong University of science and technology. (2009) 1-7.

[6] F. J. Chen, H. X. Chen, J. L. Xie, Effect of fabric air distribution system in penetration air supply mode on indoor comfort, Heating Ventilating & Air Conditioning. 40 (2010) 140-143.

[7] F. J. Chen, H. X. Chen & H. Wang, Parametrical analysis on characteristics of airflow generated by fabric air dispersion system in penetration mode, ENERGY AND BUILDINGS. 67 (2013) 365-373.

DOI: 10.1016/j.enbuild.2013.08.020

[8] Jackson G W, James D F, The permeability of fibrous porous media, The Canadian Journal of Chemical Engineering. 64 (1986) 3.

[9] X.H. Wang, Numerical Simulation of Natural Ventilation and Climate Effect Research on Residencial Building, Tianjin University. (2008) 6-8.

[10] X. G. Lin, CFD Simulation of Flow and Temperature Fields in Large Space Building, Nanjing University of Aeronautics & Astronautics. (2007) 19-20.

[11] C. He, Research on Airflow and Air Temperature Simulation in the Piggery Based on CFD, Central China Agricultural University. (2009) 26-30.

[12] W. B. Su, The Simulationon the Temperature Field and Humidity Field of Subway in Wuhan, Huazhong University of Science and Technology. (2012) 23-31.