Assessments of the Emission Contributions from an Ultra-Supercritical Coal-Fired Power Plant to Ambient PM2.5 in Taiwan
Abstract An ultra-supercritical (USC) coal-fired power plant was built to replace the old subcritical (SC) unit in the Linkou power plant (LPP) in northern Taiwan and has been in operation since 2016. Compared to the old SC power generator, the renovated unit (USC + emission control) can reduce SOx,...
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| Format: | Article |
| Language: | English |
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Springer
2023-09-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.230059 |
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| author | Yi-Cheng Lin Fang-Yi Cheng Yi-Ju Lee Thi-Thuy-Nghiem Nguyen Chuen-Jinn Tsai Huan-Cheng Wen Cheng-Hung Wu Wei-Chieh Chang Chung-Chi Huang |
| author_facet | Yi-Cheng Lin Fang-Yi Cheng Yi-Ju Lee Thi-Thuy-Nghiem Nguyen Chuen-Jinn Tsai Huan-Cheng Wen Cheng-Hung Wu Wei-Chieh Chang Chung-Chi Huang |
| author_sort | Yi-Cheng Lin |
| collection | DOAJ |
| description | Abstract An ultra-supercritical (USC) coal-fired power plant was built to replace the old subcritical (SC) unit in the Linkou power plant (LPP) in northern Taiwan and has been in operation since 2016. Compared to the old SC power generator, the renovated unit (USC + emission control) can reduce SOx, NOx, and TSP emissions by 65%, 87% and 77%, respectively. Enhancing thermal efficiency can significantly reduce air pollutant emissions; however, its impact on ambient air pollutant concentrations under various meteorological conditions is rarely studied. To clarify the issue, we utilized the Community Multiscale Air Quality (CMAQ) model to estimate the contributions of the emissions from old and renovated LPP on the ambient PM2.5 concentrations in Taiwan. During the one-month study period, the LPP upgrade can reduce the PM2.5 concentrations to more than 10 µg m−3 for a severe PM2.5 episode when the weak wind persisted for several days. The reductions were most significant in northern Taiwan. Even with the substantial emission reductions through the advanced USC units, the LPP emissions contribute considerably to the PM2.5 concentrations, with a maximum reaching 5.1 µg m−3 (10.3%). This study quantitatively assesses the environmental burden that a USC coal-fired power plant places on the ambient PM2.5 concentrations. |
| format | Article |
| id | doaj-art-d7ef676706fd4fd8a239f2f8d3326f42 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-d7ef676706fd4fd8a239f2f8d3326f422025-02-09T12:23:09ZengSpringerAerosol and Air Quality Research1680-85842071-14092023-09-01231211510.4209/aaqr.230059Assessments of the Emission Contributions from an Ultra-Supercritical Coal-Fired Power Plant to Ambient PM2.5 in TaiwanYi-Cheng Lin0Fang-Yi Cheng1Yi-Ju Lee2Thi-Thuy-Nghiem Nguyen3Chuen-Jinn Tsai4Huan-Cheng Wen5Cheng-Hung Wu6Wei-Chieh Chang7Chung-Chi Huang8Department of Atmospheric Sciences, National Central UniversityDepartment of Atmospheric Sciences, National Central UniversityDepartment of Atmospheric Sciences, National Central UniversityInstitute of Environmental Engineering, National Yang-Ming Chiao Tung UniversityInstitute of Environmental Engineering, National Yang-Ming Chiao Tung UniversityDepartment of Environmental Protection, Taiwan Power CompanyDepartment of Environmental Protection, Taiwan Power CompanyDepartment of Environmental Protection, Taiwan Power CompanyDepartment of Environmental Protection, Taiwan Power CompanyAbstract An ultra-supercritical (USC) coal-fired power plant was built to replace the old subcritical (SC) unit in the Linkou power plant (LPP) in northern Taiwan and has been in operation since 2016. Compared to the old SC power generator, the renovated unit (USC + emission control) can reduce SOx, NOx, and TSP emissions by 65%, 87% and 77%, respectively. Enhancing thermal efficiency can significantly reduce air pollutant emissions; however, its impact on ambient air pollutant concentrations under various meteorological conditions is rarely studied. To clarify the issue, we utilized the Community Multiscale Air Quality (CMAQ) model to estimate the contributions of the emissions from old and renovated LPP on the ambient PM2.5 concentrations in Taiwan. During the one-month study period, the LPP upgrade can reduce the PM2.5 concentrations to more than 10 µg m−3 for a severe PM2.5 episode when the weak wind persisted for several days. The reductions were most significant in northern Taiwan. Even with the substantial emission reductions through the advanced USC units, the LPP emissions contribute considerably to the PM2.5 concentrations, with a maximum reaching 5.1 µg m−3 (10.3%). This study quantitatively assesses the environmental burden that a USC coal-fired power plant places on the ambient PM2.5 concentrations.https://doi.org/10.4209/aaqr.230059Ultra-supercritical coal-fired power plantPM2.5Emission contributionCommunity Multiscale Air Quality Model (CMAQ)Weather condition |
| spellingShingle | Yi-Cheng Lin Fang-Yi Cheng Yi-Ju Lee Thi-Thuy-Nghiem Nguyen Chuen-Jinn Tsai Huan-Cheng Wen Cheng-Hung Wu Wei-Chieh Chang Chung-Chi Huang Assessments of the Emission Contributions from an Ultra-Supercritical Coal-Fired Power Plant to Ambient PM2.5 in Taiwan Aerosol and Air Quality Research Ultra-supercritical coal-fired power plant PM2.5 Emission contribution Community Multiscale Air Quality Model (CMAQ) Weather condition |
| title | Assessments of the Emission Contributions from an Ultra-Supercritical Coal-Fired Power Plant to Ambient PM2.5 in Taiwan |
| title_full | Assessments of the Emission Contributions from an Ultra-Supercritical Coal-Fired Power Plant to Ambient PM2.5 in Taiwan |
| title_fullStr | Assessments of the Emission Contributions from an Ultra-Supercritical Coal-Fired Power Plant to Ambient PM2.5 in Taiwan |
| title_full_unstemmed | Assessments of the Emission Contributions from an Ultra-Supercritical Coal-Fired Power Plant to Ambient PM2.5 in Taiwan |
| title_short | Assessments of the Emission Contributions from an Ultra-Supercritical Coal-Fired Power Plant to Ambient PM2.5 in Taiwan |
| title_sort | assessments of the emission contributions from an ultra supercritical coal fired power plant to ambient pm2 5 in taiwan |
| topic | Ultra-supercritical coal-fired power plant PM2.5 Emission contribution Community Multiscale Air Quality Model (CMAQ) Weather condition |
| url | https://doi.org/10.4209/aaqr.230059 |
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