Research on the Natural Ventilation Cooling Effect of Residential Building Based on the CFD and DeST Simulation

Abstract:

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Assessing the energy saving of natural ventilation is difficult, especially for large scale naturally ventilated buildings, due to the lack of deterministic data and method. This paper presents a method, integrating simulation by both software of DeST-h and computational fluid dynamics (CFD) in typical meteorological year (TMY) in Guangzhou, to evaluate quantitatively the natural ventilation cooling effect. The results showed that the cooling effect of natural ventilation was influenced by the windows and doors switching. Air conditioning operating hours reduction in the living room can reach 509h by natural ventilation during the occupied time with the windows and doors opened, which can reach 325h with the windows opened and doors closed. The cooling effect of natural ventilation was more significant in windows and doors opened case than that in windows opened and doors closed case. Annual rate of cooling loads reduction in rooms and building were 0.34~10.50% and 6.14% respectively. It is necessary to organize and design building opening to maximize the natural ventilation using.

Info:

Periodical:

Advanced Materials Research (Volumes 374-377)

Edited by:

Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du

Pages:

685-689

DOI:

10.4028/www.scientific.net/AMR.374-377.685

Citation:

L. H. Zhao and C. C. Qin, "Research on the Natural Ventilation Cooling Effect of Residential Building Based on the CFD and DeST Simulation", Advanced Materials Research, Vols. 374-377, pp. 685-689, 2012

Online since:

October 2011

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Price:

$35.00

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