107年「排放管道中粒狀污染物檢測技術評鑑績效評估建置計畫」
中文摘要 | 檢測結果的準確與否會對固定污染源排放量的判別造成影響。本研究之主要目標為建立一個模擬排放管道供檢測機構進行考試,藉此檢驗檢測機構之採樣技術與分析能力,提高國內環境檢測能力與準確性。 本研究新建之模擬煙道。主要構成為採樣平台與骨架結構、煙囪主體、加溫設備系統、送風系統、微粒產生系統與電氣系統。在研究中評估溫度、微粒濃度以及風速之可變動範圍、條件改變反應時間以及穩定度進行測試,並邀請8家次的檢測機構進行粒狀物比測評估作業。 模擬排放管道採樣設施的設置皆符合規範,風速產生範圍為0 ~ 17 m/s,反應時間小於30秒,加溫系統可維持溫度於80 ℃,反應時間小於5 分鐘。挑戰氣膠粒徑分布介於0.5 ~ 15 μm間,微粒產生器輸送範圍為0.8-37.6 g/min,在使用上必須注意當粉塵重量低於200 g時,需要補充粉塵。此模擬管道對於低質量濃度 (<50 mg/Nm3)的產生是可行的。 比測結果顯示風速比測結果在一倍標準差內共19次,一~二倍標準差內共11次,二~三倍標準差內共2次。質量濃度比測結果在一倍標準差內的有8次,一~二倍標準差內有4次,二~三倍標準差有兩次,而有兩次的比測數據超過三倍標準差,比測結果顯示模擬煙道系統可用於粒狀物比測,以確保檢測機構粒狀物檢測品質。 | ||
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中文關鍵字 | 排放管道、採樣技術、粒狀污染物 |
基本資訊
專案計畫編號 | EPA-107-1601-02-7 | 經費年度 | 107 | 計畫經費 | 4410 千元 |
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專案開始日期 | 2018/07/04 | 專案結束日期 | 2018/12/31 | 專案主持人 | 黃振榮 |
主辦單位 | 環檢所 | 承辦人 | 蘇育德 | 執行單位 | 章嘉企業有限公司 |
成果下載
類型 | 檔名 | 檔案大小 | 說明 |
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期末報告 | EPA-107-1601-02-7(公開版).pdf | 14MB | 給大眾參考 |
Proficiency Testing Program for Stack Particulate Measurements
英文摘要 | The measurement accuracy will have a great impact on the emission calculation. The purpose of this study is to establish the stack for evaluating the ability of the inspection institutions and improve the sampling and analysis accuracy. The stack takes the dimension of old stack as a reference. The main parts of the new stack includes the sampling platform, framework, stack body, heater, fan, particle generator, and electricity facilities. The response time, stability, and operation range of temperature, air velocity and particle concentration were tested. Eight inspection institutions will examine the stack after the stack was finished. The new stack had been constructed, and the sampling facilities had met the criteria. The tests of fan, heater and particle generator had completed. These devices had low response time and high stability. The air velocity of the stack ranged from 3 to 18.88 m/s, and the response time below 30 seconds. The temperature ranged from room temperature to 80 ℃ and the response tome below 5 minutes. The cement was choose as the challenge particle in this study and the particle size ranged from 0.5 to 15 μm. The proportion of particle size below 2.5 μm was 47% and above 2.5 μm was 53%. The particle mass concentration ranged from 0.8 to 37.6 g/min. The cement should be replenished when the mass was below 200 g. The stack can generate low mass concentration (<50 mg/Nm3). There are 19, 11 and 2 air velocity test results within one, two and three standard deviations respectively. For mass concentration test, there 8, 4, 2 results within one, two and three standard deviations respectively. Howerer, two mass concentration test results are out of three standard deviations. The generation of low mass concentrationstack(<50 mg/Nm3) in this stack is feasibility. | ||
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英文關鍵字 | Stack, sampling, particulate matter |