THE MEASUREMENT OF SURFACE MASS TRANSFER COEFFICIENTS IN A STANDARD FLEC

机译：标准FLEC中表面质量转移系数的测量

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FLEC (field and laboratory emission chamber) is becoming a standard method to characterize pollutant emissions from building materials. Up until now, only the emission rate profiles are obtained, which are useful for the comparison and ranking of emission strength from different materials. However, to use the chamber emission test data to model pollutant concentrations in real buildings, and also to evaluate the effects of various control strategies, mass transfer model is required. As the first step, surface convective mass transfer coefficients are essential. In this study, a first scries of direct measurements of surface mass transfer coefficients using distilled water at 5 air flow conditions ranging from 186ml/min to 509ml/min in a standard Flec is conducted. Mass transfer data inside the Flec is correlated by a dimensionless equation.

机译：FLEC（现场和实验室排放室）正成为表征建筑材料污染物排放的标准方法。到现在为止，仅获得发射速率曲线，这对于比较和排序不同材料的发射强度很有用。但是，要使用箱体排放测试数据来模拟真实建筑物中的污染物浓度，并评估各种控制策略的效果，就需要传质模型。作为第一步，表面对流传质系数至关重要。在这项研究中，在标准Flec中，使用蒸馏水在5种气流条件下（从186ml / min到509ml / min）直接测量表面传质系数，这是首次尝试。 Flec内部的传质数据通过无量纲方程关联。

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来源
《International Conference on Advances in Building Technology Vol.2, Dec 4-6, 2002, Hong Kong, China》|2002年|p.1351-1357|共7页
会议地点 Hong Kong(CN);Hong Kong(CN)
作者
J. L. Niu; L. Z. Zhang; T. K. Wan;
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作者单位

Department of building services engineering, the Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类建筑科学;
关键词
flee; mass transfer; emission; model; experiment; water;

机译：逃离；传质；排放；模型；实验；水;

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THE MEASUREMENT OF SURFACE MASS TRANSFER COEFFICIENTS IN A STANDARD FLEC

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