Investigation of Slagging Condition in a Zhundong Coal-Fired Boiler via In Situ Optical Measurement of Gaseous Sodium
In this study, a portable spectral analysis instrument based on spontaneous emission spectroscopy (SES) was developed for the in situ, non-intrusive, and quantitative measurement of gaseous Na inside ZD coal-fired boilers, which is mainly applied for predicting slagging in furnaces. This technology...
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MDPI AG
2024-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/2/488 |
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| author | Li Guo Haofan Wang Xian Li Xiangxi Wang Nanxi Bie Bin Yao Weijun Zhen Jian Li Chun Lou Hong Yao |
| author_facet | Li Guo Haofan Wang Xian Li Xiangxi Wang Nanxi Bie Bin Yao Weijun Zhen Jian Li Chun Lou Hong Yao |
| author_sort | Li Guo |
| collection | DOAJ |
| description | In this study, a portable spectral analysis instrument based on spontaneous emission spectroscopy (SES) was developed for the in situ, non-intrusive, and quantitative measurement of gaseous Na inside ZD coal-fired boilers, which is mainly applied for predicting slagging in furnaces. This technology is needed urgently because the problem of fouling and slagging caused by high alkali metals in ZD coal restricts the rational utilization of this coal. The relative extended uncertainty for the measurement of gaseous Na concentration is <i>U<sub>rel</sub></i> = 10%, <i>k</i> = 2, which indicates that measurement data are reliable under working conditions. It was found that there is a clear linear relationship between the concentration of gaseous Na and fouling in high-alkali coal boilers. Therefore, a fast and efficient method for predicting the slagging and fouling of high-alkali coal boilers can be established by using this in situ online real-time optical measurement. |
| first_indexed | 2024-03-08T09:47:15Z |
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| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-08T09:47:15Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj.art-f7019b24e61d4d7091bd0d1fe5234e532024-01-29T14:15:17ZengMDPI AGSensors1424-82202024-01-0124248810.3390/s24020488Investigation of Slagging Condition in a Zhundong Coal-Fired Boiler via In Situ Optical Measurement of Gaseous SodiumLi Guo0Haofan Wang1Xian Li2Xiangxi Wang3Nanxi Bie4Bin Yao5Weijun Zhen6Jian Li7Chun Lou8Hong Yao9Xinjiang Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830002, ChinaState Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaXinjiang Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830002, ChinaState Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaXinjiang Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830002, ChinaXinjiang Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830002, ChinaState Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaIn this study, a portable spectral analysis instrument based on spontaneous emission spectroscopy (SES) was developed for the in situ, non-intrusive, and quantitative measurement of gaseous Na inside ZD coal-fired boilers, which is mainly applied for predicting slagging in furnaces. This technology is needed urgently because the problem of fouling and slagging caused by high alkali metals in ZD coal restricts the rational utilization of this coal. The relative extended uncertainty for the measurement of gaseous Na concentration is <i>U<sub>rel</sub></i> = 10%, <i>k</i> = 2, which indicates that measurement data are reliable under working conditions. It was found that there is a clear linear relationship between the concentration of gaseous Na and fouling in high-alkali coal boilers. Therefore, a fast and efficient method for predicting the slagging and fouling of high-alkali coal boilers can be established by using this in situ online real-time optical measurement.https://www.mdpi.com/1424-8220/24/2/488gaseous Naoptical measurementspontaneous emission spectroscopyZhundong coal-fired boilerslagging |
| spellingShingle | Li Guo Haofan Wang Xian Li Xiangxi Wang Nanxi Bie Bin Yao Weijun Zhen Jian Li Chun Lou Hong Yao Investigation of Slagging Condition in a Zhundong Coal-Fired Boiler via In Situ Optical Measurement of Gaseous Sodium Sensors gaseous Na optical measurement spontaneous emission spectroscopy Zhundong coal-fired boiler slagging |
| title | Investigation of Slagging Condition in a Zhundong Coal-Fired Boiler via In Situ Optical Measurement of Gaseous Sodium |
| title_full | Investigation of Slagging Condition in a Zhundong Coal-Fired Boiler via In Situ Optical Measurement of Gaseous Sodium |
| title_fullStr | Investigation of Slagging Condition in a Zhundong Coal-Fired Boiler via In Situ Optical Measurement of Gaseous Sodium |
| title_full_unstemmed | Investigation of Slagging Condition in a Zhundong Coal-Fired Boiler via In Situ Optical Measurement of Gaseous Sodium |
| title_short | Investigation of Slagging Condition in a Zhundong Coal-Fired Boiler via In Situ Optical Measurement of Gaseous Sodium |
| title_sort | investigation of slagging condition in a zhundong coal fired boiler via in situ optical measurement of gaseous sodium |
| topic | gaseous Na optical measurement spontaneous emission spectroscopy Zhundong coal-fired boiler slagging |
| url | https://www.mdpi.com/1424-8220/24/2/488 |
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