题名 |
台中火力發電廠排煙脫硫設備(FGD)對中部地區空品之探討 |
并列篇名 |
The Effect Ireness of Controlling the SOx Emission from the Taichung Power Plant in Central Taiwan |
DOI |
10.30017/EP.200206.0006 |
作者 |
林春利(Chung-Li Lin);程萬里(Wan-Li Cheng);張家豪(Chia-Hau Chang);白玨玲(Joy-Lynn Pai) |
关键词 |
火力發電廠 ; 順軌跡模式 ; SO2 ; power plant ; forward trajectories CTx v0.73 ; SO2 |
期刊名称 |
環境保護 |
卷期/出版年月 |
25卷1期(2002 / 06 / 01) |
页次 |
54 - 81 |
内容语文 |
繁體中文 |
中文摘要 |
目前火力發電的裝置容量以及發電比例已達60%以上,為最主要之發電方式。近年來由於對環境品質的要求日益提昇,故環保署於1994年公告之「電力設施空氣污染物排放標準」訂定了更嚴格的排放標準,而位於中部地區之台中火力發電廠,更新後之硫氧化物排放標準自1999年7月開始施行,為了解台中火力發電廠在硫氧化物上的減量成效,與減量後對鄰近地區的改善情況,本研究以順軌跡模式(CTx v0.73)模擬1997年至2000年各年之一月、四月、七月、十月來代表四季之地面SO2月均值濃度分佈狀況,以了解季節對污染物分佈之影響,並探討電廠在陸續加裝污染防治設備後,對原生性污染物的改善成效。 由模式模擬結果發現,台中電廠貢獻之地面SO2濃度呈逐年下降的趨勢,從2000年之SO2月均值濃度分佈圖來看,電廠對中部地區所貢獻之SO2濃度平均已下降至1ppb以下,相較於1997年平均5~10ppb左右的貢獻,台中電廠排放減量對於地面SO2濃度的下降明顯有很大成效。通霄電廠在1997年以及2000年對地面SO2濃度的貢獻並沒有太大的變化,平均約有5~10ppb左右的貢獻,主要影響以通霄附近向南延伸40km之沿海一帶較為嚴重。 |
英文摘要 |
Burning of coal supplies more than 60% of the electricity generated in Taiwan. Coal-burning utilities have responded to evolving clean air standards in a number of ways, including adding flue-gas desulfurization (FGD) to existing plants or switching to lower sulfur coals. Most of the SO2 emissions from coal-fired power plants-and almost half of all SO2 emissions-would be eliminated if all power plants were held to the new plant standards. The new emission standard imposes much stricter emissions limits on coal-burning power plants. In order to determine the effect ireness of power plant SOx reduction strategies and the resulting change of surface SO2 concentration distribution, this study used the Circuit trajectory transfer coefficient model (CTx v0.73) to simulate the period of 1997 to 2000 using a forward trajectory algorithm. The results show that the contribution to surface SO2 concentration from the Taichung power plant has gradually decreased and the impact from the Tunghsiao power plant has become more important. The comparison between 1997 and 2000 from the Taichung power plant indicated a decrease from about 5~10 ppb to 1ppb. The main area affected by the Taichung power plant emission is the cities of Changhwa and Taichung. The Tunghsiao power plant contributed 5~10 ppb of SO2 from along the Taichung county seashore area to the Datu Hill. |
主题分类 |
基礎與應用科學 >
永續發展研究 |