Computational fluid dynamics simulation of formaldehyde emission characteristics and its experimental validation in environment chamber
Computational fluid dynamics simulation of formaldehyde emission characteristics and its experimental validation in environment chamber
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甲醛释放特性的计算流体力学模拟及环境舱实验验证
DOI：
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发表时间：
2010-09
期刊：
影响因子：
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通讯作者：
Zhijian Liu
中科院分区：
文献类型：
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作者：
Angui Li;Zhijian Liu
研究了送风量和温度对甲醛释放特性的影响。建立了一个三维计算流体动力学（CFD）小室模型，模拟了12种不同工况下的甲醛释放，并采用面积加权平均法计算了甲醛浓度。在环境舱中进行了室内实验，以验证12种不同情况下的模拟结果，并通过连续采样测量甲醛浓度。结果表明，在每种情况下，模型预测值与实验值之间的差异在4.3以内，有很好的一致性。CFD模拟结果在0.21 mg/m^3 ~ 0.94 mg/m^3范围内变化，测量结果在0.17 mg/m^3 ~ 0.87 mg/m^3范围内变化。CFD模拟和实验测量的甲醛浓度随送风量和温度的变化趋势一致。在存在稳定甲醛释放源的情况下，甲醛浓度一般随温度的升高而升高，随送风量的增加而降低。并对新装修居室的室内空气质量提出了合理化建议。
We investigated the effect of supply air rate and temperature on formaldehyde emission characteristics in an environment chamber. A three-dimensional computational fluid dynamics (CFD) chamber model for simulating formaldehyde emission in twelve different cases was developed for obtaining formaldehyde concentration by the area-weighted average method. Laboratory experiments were conducted in an environment chamber to validate the simulation results of twelve different cases and the formaldehyde concentration was measured by continuous sampling. The results show that there was good agreement between the model prediction and the experimental values within 4.3 difference for each case. The CFD simulation results varied in the range from 0.21 mg/m^3 to 0.94 mg/m^3, and the measuring results in the range from 0.17 mg/m^3 to 0.87 mg/m^3. The variation trend of formaldehyde concentration with supply air rate and temperature variation for CFD simulation and experiment measuring was consistent. With the existence of steady formaldehyde emission sources, formaldehyde concentration generally increased with the increase of temperature, and it decreased with the increase of air supply rate. We also provided some reasonable suggestions to reduce formaldehyde concentration and to improve indoor air quality for newly decorated rooms.
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DOI：
10.1007/s00107-003-0441-2
发表时间：
2004-04
期刊：
Holz als Roh- und Werkstoff
影响因子：
--
作者：
Sumin Kim;Hyun-Joong Kim
通讯作者：
Sumin Kim;Hyun-Joong Kim
影响因子：
5
作者：
ANDERSEN, I;LUNDQVIST, GR;MOLHAVE, L
通讯作者：
MOLHAVE, L
DOI：
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发表时间：
1994
期刊：
--
影响因子：
--
作者：
A. Colombo;O. Jann;R. Marutzky
通讯作者：
A. Colombo;O. Jann;R. Marutzky
DOI：
10.1111/j.1600-0668.1999.00006.x
发表时间：
1999-12-01
期刊：
INDOOR AIR-INTERNATIONAL JOURNAL OF INDOOR AIR QUALITY AND CLIMATE
影响因子：
--
作者：
Risholm-Sundman, M
通讯作者：
Risholm-Sundman, M
DOI：
10.1111/j.1600-0668.1999.t01-1-00008.x
发表时间：
1999-09-01
期刊：
INDOOR AIR-INTERNATIONAL JOURNAL OF INDOOR AIR QUALITY AND CLIMATE
影响因子：
--
作者：
Brown, SK
通讯作者：
Brown, SK