Field experiment on pressure coefficient of a naturally ventilated building in low wind velocity

Cheongsan Roh, Jeong Sik Seo, J. S. Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Natural ventilation has the potential to reduce energy consumption and operating costs compared with mechanical ventilation. An opening for natural ventilation is carefully designed because of fluctuating wind velocity and direction. A pressure coefficient(Cp) is a dimensionless number which describes the relative pressures throughout a flow field. However, wind pressure coefficient values were results in above 4m/s wind velocity. The purpose of this study is to analyze the characteristics of pressure coefficient distribution in low wind velocity through a long-term measurement conducted from June 1st, 2010 to May 31st, 2011. The pressure difference, weather condition and airflow rates were measured using differential pressure sensor, weather station and multi-gas monitor. Consequently, in low wind velocity, it was found that there are significant differences of Cp between the result of measurement and AIVC database. Also, as wind velocity has increased, the fluctuation of Cp was small.

Original languageEnglish
Title of host publication10th International Conference on Healthy Buildings 2012
Pages1947-1953
Number of pages7
Publication statusPublished - 2012 Dec 1
Event10th International Conference on Healthy Buildings 2012 - Brisbane, QLD, Australia
Duration: 2012 Jul 82012 Jul 12

Publication series

Name10th International Conference on Healthy Buildings 2012
Volume3

Other

Other10th International Conference on Healthy Buildings 2012
CountryAustralia
CityBrisbane, QLD
Period12/07/812/07/12

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Keywords

  • Measurements
  • Natural ventilation
  • Pressure coefficient
  • Wind velocity

Cite this

Roh, C., Seo, J. S., & Park, J. S. (2012). Field experiment on pressure coefficient of a naturally ventilated building in low wind velocity. In 10th International Conference on Healthy Buildings 2012 (pp. 1947-1953). (10th International Conference on Healthy Buildings 2012; Vol. 3).