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Prediction of perceived air quality for Personalized Ventilation Systems

Tsinghua Science and Technology 2005年第2期10卷 227-232页

作者：曾庆帆赵荣义 Department of Building Science Tsinghua University Beijing 100084 China

The characteristics of the air jet from the outlet of a personalized ventilation system were related to the perceived air quality and ventilation rate. The perceived air quality was expressed as percentage of dissatisfied people for a system supplying isothermal fresh air. The relationship was verified using a thermal manikin with a breathing function in a climate chamber sitting by a desk equipped with a personalized venti- lation system. A trace gas was introduced into the climate chamber and fully mixed. The personal exposure effectiveness (εp) is based on concentrations of trace gas in the chamber and in the manikin nose which is affected more by the distance between the movable outlet and the occupant’s breathing zone than by the personalized air flowrate and does not change much for the personalized air flowrate higher than 10 L/s when the distance is fixed. Some predicted dissatisfied values for a personalized ventilation system com- pared with those acquired in human subject experiments have an absolute difference of less than 3%.

关键词： air quality perceived air quality personalized ventilation personal exposure effectiveness

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The relationship between indoor air quality(IAQ)and perceived air quality(PAQ)-a review and case analysis of Chinese residential environment

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Energy and Built Environment 2024年第2期5卷 230-243页

作者： Jingjing Pei Meinan Qu Luyao Sun Xueyong Wang Yihui Yin Tianjin Key Laboratory of Indoor air Environmental quality Control School of Environmental Science and EngineeringTianjin UniversityTianjin 300072China

Due to the majority of time people spent indoors,indoor air quality is not only critical to people’s health,comfort,but can also significantly influence occupants perception on indoor *** quality is closely related to many factors including thermal parameters,pollutant concentrations,and ventilation ***,the current building indoor air quality evaluation method is based the objective measurement of indoor parameters,without considering occupants’subjective *** paper is aimed at summarizing a profound review on the PAQ evaluation *** among various PAQ evaluating methods with advantages,similarities and differences were *** of literatures about indoor air quality in Chinese residential buildings field is also summarized,and discussion on the subjective influence of temperature and relative humidity,venti-lation performance,volatile organic compounds(VOCs)concentration,and particulate matters on perceived air quality is carried out.

关键词： perceived air quality Temperature and relative humidity Volatile organic compound Ventilation Particulate matter

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