112年「排放管道中粒狀污染物檢測技術評鑑績效評估計畫」
| 中文摘要 | 能力試驗（Proficiency testing）經常被用來評估檢測機構檢測結果的品質與正確性，參與能力試驗能夠驗證檢測機構的檢測結果是可信賴的。但對於粒狀污染物來說，如何建立一個能夠同時評估採樣過程與量測結果的能力試驗系統是一大挑戰。為提升國內檢測技術，國家環境研究院建置一模擬煙道粒狀物比測系統，藉著穩定產生不同比測風速與粒狀物質量濃度，提供檢測機構進行比對。 模擬煙道能夠操作的風速範圍為3–18 m/s，質量濃度為1–300 mg/Nm3，能夠符合國內大部分煙道的污染物濃度範圍。藉由累積比測資料，建立模擬煙道風速與質量濃度之模式，來評估檢測機構技術能力。同時也藉由輔導作業的過程，找出檢測過程中需改進的項目，提升國內比測作業水準。 112年度共比測24次，其中兩次不合格，91-112年間共執行過384場次，通過率為89%，風速比測與質量濃度的合格率94.72與95.1%。風速與質量濃度模式已趨於穩定，具有足夠代表性。本計畫建立之輔導作業檢核表能夠輔助輔導過程，而輔導作業共完成10家，需要改善的項目可分為水分量測、ORSAT操作、壓力量測、體積量測、粒狀物採樣操作與現場安全六種。歷年來比測資料也顯示，此計畫的執行能夠降低比測結果的誤差，並提升檢測機構採樣技術與分析能力。 | ||
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| 中文關鍵字 | 粒狀物採樣、排放管道、粒狀污染物 | ||
基本資訊
| 專案計畫編號 | 經費年度 | 112 | 計畫經費 | 1900 千元 | |
|---|---|---|---|---|---|
| 專案開始日期 | 2023/01/01 | 專案結束日期 | 2023/12/31 | 專案主持人 | 黃盛修 |
| 主辦單位 | 國環院檢測認證中心 | 承辦人 | 鄭志文 | 執行單位 | 國立臺灣大學 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | 112年「排放管道中粒狀污染物檢測技術評鑑績效評估計畫」成果報告_公開版.pdf | 18MB | 成果報告公開版本 |
The evaluation program of stack PM measurement and proficiency performance
| 英文摘要 | Proficiency testing (PT) can evaluate the performance of testing companies, and participating in the proficiency testing program helps verify the reliability of the testing results. However, developing a proficiency testing system that simultaneously evaluates both the sampling process and the measurement results poses a significant challenge for particulate pollutants. The National Environmental Research Academy (NERA) has established the simulation stack to enhance domestic testing capabilities. By generating various air velocities and particulate matter concentrations, this system allows NERA to conduct comparisons for proficiency tests. The simulation stack can provide a stable air velocity and mass concentration for testing. The operable air velocity range is 3 – 18 m/s, and the mass concentration range is 1 - 300 mg/Nm3, covering the majority of pollutant concentration ranges found in domestic stationary emissions. By accumulating test data, a model for air velocity and mass concentration can be established to evaluate the technical capabilities of testing entities. Simultaneously, through the guidance process, areas requiring improvement during the PT programs can be identified, thus enhancing the overall quality of testing companies. The testing has been completed for 24 companies, and two company did not pass due to the failure to meet the air velocity item requirement; the rest have passed. Over the years (2002 - 2023), a total of 384 tests have been conducted, with a pass ratio of 89%. The pass ratios for velocity measurements and mass concentrations are 94.72% and 95.1%, respectively. The wind speed and mass concentration models have become stable and have sufficient representativeness. The checklist developed by this project can be helpful in the process of counseling. The areas for test companies to improve fall into six categories: water content measurement, ORSAT operation, pressure measurement, sampling volume measurement, particulate matter sampling process and safety. Over the years, PT data also demonstrates that implementing this program can reduce errors in test results and enhance the testing company's sampling techniques and analytical capabilities. | ||
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| 英文關鍵字 | PM sampling, stack, particulate matter | ||