Empirical cumulative distribution function of CO2 concentration increments as a descriptor of indoor air variability

• Autorzy: Szczurek A. , Maciejewska M. , Pietrucha T.

Identyfikatory

DOI

10.5277/epel50313

• Języki publikacji: EN

Abstrakty

EN

Indoor air quality broadly refers to the environmental characteristics inside buildings and characterizes the physical, chemical and biological state of indoor air at some place and time. Usually it is characterized by physicochemical properties of indoor environment such as temperature, relative humidity, airflows and concentration of characteristic pollutants, e.g. carbon dioxide. They are highly variable in time. In the paper, changes of empirical cumulative distribution function (ECDF) of CO2 concentration were considered as a descriptor of indoor air variability. Using this measure, there may be performed the analysis of CO2 variation in a short as well as long term. The approach utilizes the idea of classification. A class of variation of CO2 concentration has its individual ECDF. It indicates a particular case of balance/imbalance between CO2 delivery and removal processes, including gas dispersion. The analysis is applicable for evaluating the stability of indoor environment and it may provide support for the diagnosis of the performance of the air exchange system. Exemplary results were provided for an open space office and a lecture theater.

Słowa kluczowe

EN

carbon dioxide; air quality; carbon; indoor air pollution; indoor air quality; indoor environment

PL

dwutlenek węgla; jakość powietrza; węgiel; zanieczyszczenie powietrza w pomieszczeniach; jakość środowiska wewnętrznego; środowisko wewnętrzne

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2015
• Tom: Vol. 41, nr 3
• Strony: 173--187
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Szczurek A.

• Laboratory of Sensor Technique and Indoor Air Quality Studies, Faculty of Environmental Engineering, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław

autor

Maciejewska M.

• Laboratory of Sensor Technique and Indoor Air Quality Studies, Faculty of Environmental Engineering, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław

autor

Pietrucha T.

• Laboratory of Sensor Technique and Indoor Air Quality Studies, Faculty of Environmental Engineering, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław

Bibliografia

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