期刊
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
卷 28, 期 2, 页码 288-305出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrefrig.2004.04.006
关键词
air conditioning; residential building; ventilation; simulation; calculation; performance; indoor air quality; organic compound; volatile compound
A numerical simulation using a validated computational fluid dynamics model is used to investigate and compare the performances of displacement and mixing ventilations (MVs), under different boundary conditions. A companion paper will report the results in terms of thermal comfort, while this paper investigates the indoor air quality (IAQ). The IAQ will be measured in terms of carbon monoxide, mean age of air and the three volatile organic compounds, toluene, benzene and formaldehyde, which are commonly found in indoor room furnishings. The case studies include offices, classrooms, retail shops and industrial workshops, under typical Hong Kong thermal boundary conditions. Compared with conventional MV, displacement ventilation may provide better IAQ in the occupied zone. (C) 2004 Elsevier Ltd and IIR. All rights reserved.
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