相关实验视频

Updated: Jun 24, 2025

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Published on: April 8, 2020

在室内环境中多组分气溶滴蒸发和增长的数学建模

Jia-Ning Fan¹, Mengdan Qiao², Yang Yang³

¹Energy School, Xi'an University of Science and Technology, Xi'an, Shaanxi 710054, PR China.

Journal of hazardous materials

|June 8, 2024

概括

一个新的模型准确地预测了室内多组件滴水的蒸发和增长,提高了超过25%的准确性. 这增强了对室内空气质量和水滴行为的理解,以改善健康和安全.

科学领域:

环境科学环境科学
化学工程是化学工程的重要组成部分.
物理物理学物理

背景情况:

室内空气质量受到日常活动和工业过程中多元成分滴滴的降低.
滴滴的大小和成分极大地影响健康危害和去除效率,由蒸发和生长驱动.
同时的相位转换和复杂的热量/质量转移是多元件滴滴的特征.

研究的目的:

通过结合不同的滴水大小和多个组件来完善现有的单元滴水蒸发模型.
开发一个全面的多组分滴水蒸发/增长模型,适用于广泛的尺寸范围.
为预测室内多组分滴滴分布建立理论基础.

主要方法:

在蒸发模型中,理论上将不同大小的水滴和多组件效应集成到蒸发模型中.
开发一个涵盖所有液滴大小的多组分液滴蒸发/增长模型.
使用MATLAB进行模型实现和预测,结合无维转移系数和零扩散运输.

主要成果:

开发的模型准确地预测了室内多组件滴滴动力学,与实验数据的偏差小于16%.
使用无维转移系数,在滴滴大小上提高了>25%的精度.
对零扩散运输的多组分滴滴的精度提高了>24%.
在相变后预测的滴滴半径可以达到8.42 × 10-6 m,保持长时间的悬浮状态.

结论:

这项研究提供了一个强大的理论框架,用于预测室内多元组分滴滴的行为.
该模型提高了室内空气质量评估关于滴水动态的准确性.
这些发现有助于改进管理和减轻多元组分滴滴所造成的室内空气污染的战略.

关键词:

滴滴的组成滴滴的组成滴滴大小滴滴大小滴滴大小蒸发是蒸发的过程.增长的增长增长的增长多元组件滴滴是多元组件的.

更多相关视频

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Published on: June 8, 2015

$Measuring Spray Droplet Size from Agricultural Nozzles Using Laser Diffraction$ 08:14

Measuring Spray Droplet Size from Agricultural Nozzles Using Laser Diffraction

Published on: September 16, 2016

相关概念视频

Clausius-Clapeyron Equation

Clausius-Clapeyron Equation

The equilibrium between a liquid and its vapor depends on the temperature of the system; a rise in temperature causes a corresponding rise in the vapor pressure of its liquid. The Clausius-Clapeyron equation gives the quantitative relation between a substance’s vapor pressure (P) and its temperature (T); it predicts the rate at which vapor pressure increases per unit increase in temperature.

Typical Model Studies

Typical Model Studies

Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.