标题: | 一个多频道PM10-PM2.5采样器的研发 Development of a Multi-Channel PM10-PM2.5 Sampler |
作者: | 蔡春进 TSAI CHUEN - JINN 国立交通大学环境工程研究所 |
关键字: | 悬浮微粒;空气污染监测;微粒采样器;悬浮微粒采样分析;particle matter;air pollution monitoring;particle sampler;sampling andanalysis of atmospheric particles. |
公开日期: | 2008 |
摘要: | 目前台湾地区所用的采样仪器绝大都是进口的产品,很少有本土自产的仪器,这些 采样器所费不赀,因此国人自行研发微粒采样器有很大的需要。本计画拟以三年的时间, 设计并测试一个多频道的PM10-PM2.5 采样器, 可以同时采集4 个PM10 及4 个PM2.5 的滤 纸或固气分离器(denuder)的样本, 以供微粒称重、元素分析、离子分析及碳分析,或正 确的无机或有机气体及微粒分析之用,避免因样品不足需要切割滤纸造成浓度不均,或 是需要使用多个微粒采样器、花费成本过高的问题。本采样器的另一个特点是采样气体 体积流率采主动式的控制方式,可以依大气的温度、压力及滤纸的压差而维持一个固定 值,以便能得到正确的PM10 及PM2.5 的样本,同时可以纪录逐时的采样体积流率、大气 的温度及压力,以用于计算正确的大气微粒浓度。本计画拟在实验室及风洞中完成校正 测试工作, 并与巿售的PM 采样器完成现场比对测试工作, 以验证本采样器的准确性, 并进一步改善本采样器以增进其实用性。 Currently most of the air sampling instruments used in Taiwan are imported from abroad. There are very few domestic instruments. These instruments are costly and hence there is a big demand to develop domestic particle samplers. This proposal intends to use 3 years to design and test a multi-channel PM10-PM2.5 sampler in which 4 PM10 and four PM2.5 filter or denuder samples can be taken at the same time. These samples can further be used for weighing, and analysis for elements, ions and carbons, or accurate inorganic or organic gas and particle analysis. This is to avoid the need to divide the filter samples when the samples are not adequate which may result in non-uniform concentration, or the need to use many particle samplers which are costly. The other advantage of this sampler is that the volumetric flow rate is controlled actively so that a fixed flow rate can be maintained based on atmospheric temperature, pressure and filter pressure drop so that accurate PM10-PM2.5 samples can be obtained. Also the hourly sampling volumetric flow rate, ambient temperature and pressure can be recorded for further calculation of ambient PM concentration. This proposal will conduct the calibration test in the laboratory and a wind tunnel, and finish comparison with other commercial samplers at field to validate the accuracy of the sampler. This is to further improve the sampler and increase its feasibility. |
官方说明文件#: | NSC95-2221-E009-111-MY3 |
URI: | http://hdl.handle.net/11536/102232 https://www.grb.gov.tw/search/planDetail?id=1590329&docId=272685 |
显示于类别: | Research Plans |