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首页> 外文期刊>Journal of Environmental Science and Health >Estimates of parameters for formaldehyde emission model from plywood panel under various temperature and relative humidity conditions
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Estimates of parameters for formaldehyde emission model from plywood panel under various temperature and relative humidity conditions

机译：在不同温度和相对湿度条件下胶合板甲醛释放模型的参数估计

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摘要

The initial emittable concentration, C-m,C-0, the material phase diffusion coefficient, D-m, and the air/material partition coefficient, K, are the key parameters used to predict the formaldehyde emissions from indoor building materials. This work presents formaldehyde emission experiments of plywood panels in a climatic chamber under various environmental conditions, which provides information on how relative humidity, temperature, and loading degree affect the formaldehyde emission. The experimental results showed that formaldehyde concentration in the climatic chamber increased rapidly during the initial 3 h, and then reached equilibrium after 7 h. The equilibrium concentration of formaldehyde in the closed chamber was increased by 1.1-1.3 times with the relative humidity increased by 20%, and 1.3-2.5 times with the temperature increased by 5 degrees C, respectively. In agreement with the experimental treatment, a new method of estimating parameters was carried out in a theoretical model from formaldehyde emission, opening the way to a factorial analysis of the relevant parameters for relative humidity and temperature. The theoretical model with estimated parameters was further validated by experiments with different environmental conditions, which should help to quickly determine the parameters needed to predict formaldehyde emissions.
机译：初始可排放浓度C-m，C-0，材料相扩散系数D-m和空气/材料分配系数K是用于预测室内建材甲醛释放量的关键参数。这项工作介绍了在各种环境条件下气候室内的胶合板镶板的甲醛释放实验，该实验提供了有关相对湿度，温度和负载程度如何影响甲醛释放的信息。实验结果表明，气候室内的甲醛浓度在最初的3小时内迅速增加，然后在7小时后达到平衡。当相对湿度增加20％时，密闭室内甲醛的平衡浓度增加1.1-1.3倍，而温度增加5℃则增加1.3-2.5倍。与实验处理相一致，在理论模型中采用了一种新的参数估计方法，即甲醛释放量，为因子分析相对湿度和温度的因子分析开辟了道路。通过在不同环境条件下进行的实验进一步验证了带有估计参数的理论模型，这应有助于快速确定预测甲醛排放量所需的参数。

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