https://scholars.lib.ntu.edu.tw/handle/123456789/85630
標題: | Competitive intramolecular hydrogen bonding formation and excited-state proton transfer reaction in 1-[(diethylamino)-methyl]-2-hydroxy-3-naphthaldehyde (vol 382 pg 203 2004) | 作者: | Liao, Chung-Min Huang, Su-Jui Yu, Hsin |
關鍵字: | diffusioosmosis;electroosmosis;capillary tube;capillary slit;Particulate matter;Deposition;Natural ventilation;Opening e9ectiveness;Indoor/outdoor ratio;Modeling | 公開日期: | 26-九月-2003 | 出版社: | Taipei:National Taiwan University Dept Chem Engn | 卷: | 411 | 期: | 420 | 起(迄)頁: | - | 來源出版物: | ?Building and Environment | 摘要: | We applied a simple size-dependent indoor air quality model associated with measured outdoors particulate matter (PM) pro5les and potential loss mechanisms to characterize PM indoor/outdoor (I/O) relationships for wind-induced naturally ventilated residences in Taiwan region. The natural ventilation rate was quanti5ed by the opening e9ectiveness for sidewall opening and covered ridge with sidewall-opening-type homes. The measured results demonstrate that integrated PM10 and PM2:5 mass concentrations for the urban area are 39.2 and 3:13 g m−3, respectively, whereas for the suburban area are 75.76 and 69:87 g m−3, respectively. The most signi5cant removal mechanisms included natural ventilation through and particle deposition on indoor surfaces. The predicted average PM mass I/O ratios were 0.56 and 0.42 for PM2:5 and PM10, respectively. We also employed published data on mass-weighted size distributions for speci5c chemical constitutes of PM, sulfate and nitrate, to predict PM I/O ratios in the central Taiwan region; the resulting values ranged from 0.22 to 0.43 and 0.27 to 0.36 for sulfate and nitrate, respectively. Our results demonstrate that the PM I/O ratios for a wind-induced natural ventilated airspace depend strongly on the ambient particle distributions, building openings design (e.g. height-to-length ratio of openings and roof slope), wind speed, wind angle of incidence, and outdoor PM metrics. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/2006111501244255 | 其他識別: | 246246/2006111501244255 |
顯示於: | 生物環境系統工程學系 |
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