Institute of Built Environment, Tsinghua University, Beijing, China.
School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China.
Indoor Air. 2016 Feb;26(1):39-60. doi: 10.1111/ina.12198. Epub 2015 Apr 2.
Mass transfer is key to understanding and controlling indoor airborne organic chemical contaminants (e.g., VVOCs, VOCs, and SVOCs). In this study, we first introduce the fundamentals of mass transfer and then present a series of representative works from the past two decades, focusing on the most recent years. These works cover: (i) predicting and controlling emissions from indoor sources, (ii) determining concentrations of indoor air pollutants, (iii) estimating dermal exposure for some indoor gas-phase SVOCs, and (iv) optimizing air-purifying approaches. The mass transfer analysis spans the micro-, meso-, and macroscales and includes normal mass transfer modeling, inverse problem solving, and dimensionless analysis. These representative works have reported some novel approaches to mass transfer. Additionally, new dimensionless parameters such as the Little number and the normalized volume of clean air being completely cleaned in a given time period were proposed to better describe the general process characteristics in emissions and control of airborne organic compounds in the indoor environment. Finally, important problems that need further study are presented, reflecting the authors' perspective on the research opportunities in this area.
物质传递对于理解和控制室内空气有机化学污染物（例如，挥发性有机化合物、挥发性有机化合物和半挥发性有机化合物）至关重要。在本研究中，我们首先介绍了物质传递的基本原理，然后展示了过去二十年中的一系列代表性作品，重点关注最近几年的作品。这些作品涵盖了：（i）预测和控制室内源的排放，（ii）确定室内空气污染物的浓度，（iii）估算某些室内气相半挥发性有机化合物的皮肤暴露，以及（iv）优化空气净化方法。物质传递分析涵盖了微观、介观和宏观尺度，包括常规物质传递建模、反问题求解和无量纲分析。这些代表性作品报道了一些物质传递的新方法。此外，还提出了新的无量纲参数，如小数量和在给定时间内完全清洁的清洁空气的归一化体积，以更好地描述室内环境中空气传播有机化合物排放和控制的一般过程特征。最后，提出了需要进一步研究的重要问题，反映了作者对该领域研究机会的看法。
