EPA-93-1602-02-02

093

1,600 千元

2004/03/31

2004/12/31

鄭福田

環檢所

環境監測及檢測

煙道採樣,微粒,,

stack sampling,particle

林文印、黃景祥

陳志傑

林碩哲

02-23938631

joers_lin@yahoo.com.tw

模擬煙道是為內徑約60 cm，高約14 m之垂直管道，一具十五匹馬力的風車，以及前後進氣孔與出氣孔的過濾設備所組成。本計畫邀請32家檢測機構參與煙道採樣，每家檢測機構在3種風速和3種粉塵輸出量，產生共計9種組合編號下，進行2種組合編號的盲測。 研究的主要目的包括維護排放管道氣、粒狀污染物檢測比測系統(模擬煙囪)正常運轉操作。進行(空氣檢測類)檢測機構之盲測業務，針對32家領有排放管道粒狀污染物檢測機構進行比測，利用歷年累積排放管道粒狀污染物檢測比測數據，建立更佳之粒狀物質量濃度統計模式，探討煙道內微粒成份（含光學特性）、粒徑分佈、數目濃度、表面積濃度、重量濃度等。 結果顯示2004年煙道粒狀污染物統計模式其迴歸模型的R2= 0.85，也就是說模型解釋的程度將近達到百分之八十五左右，相較於歷年的資料今年的粒狀污染物統計模式解釋力提升，這暗示著檢測機構對於煙道粒狀物的檢測能力上升，需要加強訓練和教育。此外，在相同微粒質量濃度下，微粒的粒徑大小會產生不同的不透光度，因此，空污費依此不透光度標準進行徵收，必須考量製成產生微粒的粒徑分佈。

煙道採樣,微粒,,

0000035596.zip

4MB

[期末報告]

2005/3/1 上午 12:00:00

The testing system simulating a stack is composed of an inlet filtration unit, a 15 HP blower, a 13.4 m height, 60 cm diameter stainless steel duck, and an outlet filtration (bag house collector). Three levels of velocity and three levels of dust feeding rate were chosen for operational conditions in this project year. Thirty-Two private certified laboratories were invited and randomly assigned to 2 out of 9 conditions. The main objective of the present study is to operate a pilot stack system to keep on establishing a database of measurements of stationary sources. This database was subject to further statistical analysis for performance proficiency. Other objective is to improve, operate and maintain a device (simulating a stack) for validating the measurement of particulate from stationary sources. To Produce unknown dust concentrations for evaluate the sampling performance of the private certified laboratories by the statistical analysis model of the 2001 and 2002 year. Generating different kinds and aerosol concentrations in the laboratory to evaluate number, surface, volume and mass concentrations. The results showed that a statistical model of aerosol was derived and found to be able to explain over 85% of the variation in this year, this indicated that the ability of stack particulate measurements in this year may be higher than last year for private certified laboratories. Certified laboratories need to make a strengthen training and education about stack sampling. Furthermore, aerosol particles of the same mass concentration may have different opacity readings primarily due to the difference in size distribution. Therefore, aerosol size distribution of emitted particulate matter needs to be considered if opacity meter is to be used as the continuous emission monitor.

stack sampling,particle