Numerical Simulation of Indoor Velocity Field in Winter Effected by Jet Flow Velocity Attached on Exterior Wall

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In this paper, ANSYS-CFX computational fluid software was applied for the study of numerical simulation, to explore the influences of the vertical attached jet air flow on outside wall formed by the slot outlet to the indoor temperature field and velocity field. By analysis and study of the indoor velocity field under different supply air speeds distribution, the new type air conditioning air supply might be found, and the uncomfortable degree caused by vertical temperature differences and cold wall nonuniform radiation could be reduced. Thereby, the double-index of the energy conservation and comfortable in the office building could be matched for business building, hotel and other public buildings. The result of this study indicated that,in order to achieve the goal of saving energy and improving indoor thermal comfort, the appropriate supply air velocity should be determined according to the actual conditions in heat ventilation air conditioning application.

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841-844

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January 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] In Chinese: Jiang Wang. Considering both winter and summer working conditions in air conditioning designing[J]. Journal of HVAC. (2000)30(2)47-49.

Google Scholar

[2] ASHREA. ISO_7730­(2005).

Google Scholar

[3] In Chinese: ANSYS CFX, Release 1. 2. 0. Release 12. 0­©2009 ANSYS, Inc.

Google Scholar

[4] In Chinese: Heating ventilation and air conditioning control design specifications, GBJ 1987 (2001 edition).

Google Scholar

[5] In Chinese: Xuejiao Xia and Zeqin Liu. A numerical simulation of external wall air curtain of typical office room[C]. 2001 of china refrigeration academic conference, (2011).

Google Scholar

[6] In Chinese: Zeqin Liu, Yuan Chang and Xianmin Guo. The indoor thermal comfort with different natural ventilation modes[J]. Journal of Hebei University of Technology, (2012)Vol. 41. No. 3 68-72.

Google Scholar