DocumentCode :
3094068
Title :
Evaluation of Exhaled Infectious Agents Transmission between Occupants under Different Ventilation Systems Indoors
Author :
He Qibin ; Gao Naiping ; Zhu Tong ; Wu Jiazheng
Author_Institution :
Inst. of Refrigeration & Thermal Eng., Tongji Univ., Shanghai, China
fYear :
2010
fDate :
18-20 June 2010
Firstpage :
1
Lastpage :
4
Abstract :
The transmission of exhaled aerosols between two occupants under three total volume ventilation systems called mixing ventilation (MV), displacement ventilation (DV), and under-floor air distribution (UFAD) combined with two types of personalized ventilation (PV) systems was investigated numerically using computational fluid dynamics (CFD) method in a full-scale test room. Two particle sizes 0.8μm and 16μm as well as tracer gas were studied. Two indexes i.e. normalized concentration and ventilation effectiveness were used to evaluate the performance of the ventilation systems. It was found that PV enhanced the concentration level of tracer gas and fine particles in the breathing zone under DV and UFAD based ventilation systems. Using PV couldn´t help improve the quality of inhaled air for DV based systems but could get the inhaled air quality of MV and UFAD based systems better.
Keywords :
aerosols; air conditioning; air pollution; computational fluid dynamics; ventilation; aerosol transmission; breathing zone; computational fluid dynamics; displacement ventilation; exhaled infectious agent transmission; indoor ventilation system; mixing ventilation; personalized ventilation; tracer gas; under floor air distribution; Aerosols; Computational fluid dynamics; Helium; Influenza; Mouth; Refrigeration; System testing; Thermal engineering; Thermal pollution; Ventilation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
ISSN :
2151-7614
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
Type :
conf
DOI :
10.1109/ICBBE.2010.5515154
Filename :
5515154
Link To Document :
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