|Table of Contents|

Influence of Heating Source Area on Thermal Pressure Natural Ventilation in Room(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2007年02期
Page:
80-85
Research Field:
Publishing date:
2007-06-20

Info

Title:
Influence of Heating Source Area on Thermal Pressure Natural Ventilation in Room
Author(s):
SUI Xue-min1;  GUAN Yan-ling2;  LI An-gui3;  ZHANG Xu1
1. Institute of Heating, Ventilation, Air Conditioning and Gas, Tongji University, Shanghai 200092, China; 2. School of Environmental Science andEngineering, Chang'an University, Xi'an 710054, Shaanxi, China; 3. School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China
Keywords:
heating source area;  thermal pressure natural ventilation;  fluid field;  neutral surface;  effective heating coefficient;  computational fluid dynamics
PACS:
TU834.1
DOI:
-
Abstract:
Aimed at the civil building with inside heating source, using the method of computational fluid dynamics(CFD), changing the heating source area, and simulating the fluid field of the thermal pressure natural ventilation, authors presented the quantity of air ventilation, the temperature of air flowing out and its changing rule in different heating source area; analysed the temperature field and velocity field in different conditions; gave the variation rule of the height of neutral surface and the effective heating coefficient. The result shows that the variations of heating source area mainly influence the temperature field of bottom area in room, and influence the quantity of air ventilation and the temperature of air flowing out in some sort, and produce some influence on the height of neutral surface and the effective heating coefficient to a certain extent. All these conclusions provide theory foundation for the design of the natural ventilation system in civil building.

References:

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Last Update: 2007-06-20