污染控制技术及原理
王立鑫,崔珩,杨知还,白郁华,刘兆荣,李金龙.对二氯苯释放及影响因素的环境测试舱模拟研究[J].环境科学学报,2007,27(1):45-52
对二氯苯释放及影响因素的环境测试舱模拟研究
- The study of simulating p-dichlorobenzene emission and effect factors using environmental test chamber
- 基金项目：北京大学“211”工程项目
- 作者
- 单位
- 王立鑫
- 北京大学环境学院环境科学系, 北京 100871
- 崔珩
- 北京联合大学应用文理学院环境系, 北京 100083
- 杨知还
- 北京联合大学应用文理学院环境系, 北京 100083
- 白郁华
- 北京大学环境学院环境科学系, 北京 100871
- 刘兆荣
- 北京大学环境学院环境科学系, 北京 100871
- 李金龙
- 北京大学环境学院环境科学系, 北京 100871
- 摘要：利用自制环境测试舱模拟室内环境,研究了对二氯苯(p-DCB)释放过程,确定释放速率及其影响因素.模拟结果表明,在不同环境参数(温度、空气流量/流速和相对湿度)条件下,p-DCB释放速率不同温度升高,p-DCB释放速率增大;空气流速增加,p-DCB释放速率加快;相对湿度增大,释放速率同样有增大趋势,但是与温度和空气流速对p-DCB释放速率的影响相比较小.环境参数和p-DCB表面积一定,则p-DCB释放速率恒定,因此,可根据防虫防霉片剂使用量预测室内p-DCB浓度.预测值与文献实测值对比结果表明,模拟值与文献实测值基本上在同一数量级.
- Abstract：Studying the emission process of p-dichlorobenzene (p-DCB), and determining the emission rate and effect factors on emission, the simulating results showed that the emission rate of p-DCB was affected by the environmental parameters (temperature-T、air flow/air velocity-Q/v and relative humidity-H) changing. The emission rate of p-DCB increased with the temperature or the air velocity advancing. The relative humidity was up, the emission rate also elevated. But the effect of relative humidity was less than temperature and air velocity on the p-DCB emission rate. The p-DCB emission rate was steady if the environmental parameters and the surface of p-DCBwere constant. So the indoor p-DCBconcentration can be predicted according to the using amount of p-DCB preparation. Comparing the predicted value with the measured value of the references, the two were in the same order.
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