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Research Article

Natural ventilation potential of high-rise residential buildings in northern China using coupling thermal and airflow simulations

Yan Li, Xiaofeng Li( )
Department of Building Science, School of Architecture, Tsinghua University, Beijing 100084, China
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Abstract

Natural ventilation is regarded as one of the most energy-efficient ways of ventilating a building. Suitable methods for predicting ventilation performance are essential for regulating indoor air parameters in buildings. This study establishes a method to predict the natural ventilation potential for residential buildings. The average annual ventilation rate (N) and annual cooling load saving ratio (ACSR) for the top six types of residential buildings were measured and analyzed under different conditions. The N calculation formula was summarized to calculate the natural ventilation air change rate for each of the designated buildings. In addition, the logarithmic regression curves of the ACSR (with N) were also obtained and then used to predict the natural ventilation potential for specific climatic conditions. The simulation results could be used to guide engineers in deciding when and where natural ventilation can be incorporated as an energy-efficient feature without affecting indoor comfort. Moreover, accurate strategic analysis could also be used to assist architects evaluate the potential of natural ventilation at the architectural pre-design stage.

Keywords

natural ventilationcooling loadventilation rateresidential buildingannual cooling load saving ratio (ACSR)

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Building Simulation
Volume 8 Issue 1,
February 2015
Pages 51-64
DOI: 10.1007/s12273-014-0188-1
Cite this article:
Li Y, Li X. Natural ventilation potential of high-rise residential buildings in northern China using coupling thermal and airflow simulations. Building Simulation, 2015, 8(1): 51-64. https://doi.org/10.1007/s12273-014-0188-1

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Received: 18 February 2014
Revised: 23 May 2014
Accepted: 02 June 2014
Published: 04 July 2014
© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2014
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