Experimental Study of The Growth of Ammonium Bisulfate Ash Deposition at Different Wall Temperatures and Heat Transfer Characteristics
The deposition of ammonium bisulfate ash (ABS) is a common occurrence in the flue of a boiler in a power plant. This can result in a reduction in the efficiency of the selective catalytic reduction (SCR) process and the air preheater. To reduce the formation of ABS deposits in flue gas systems, exte...
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EDP Sciences
2024-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/128/e3sconf_icaeer2024_01002.pdf |
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| author | Yu Yongfei Pan Weiguo |
| author_facet | Yu Yongfei Pan Weiguo |
| author_sort | Yu Yongfei |
| collection | DOAJ |
| description | The deposition of ammonium bisulfate ash (ABS) is a common occurrence in the flue of a boiler in a power plant. This can result in a reduction in the efficiency of the selective catalytic reduction (SCR) process and the air preheater. To reduce the formation of ABS deposits in flue gas systems, extend the service life of SCR catalysts, and improve the efficiency of heat exchangers, online monitoring technology was employed to observe the formation of ABS deposits in a vertical one-dimensional furnace. The objective of this study is to investigate the formation of ABS deposits on heat transfer surfaces at varying temperatures and their impact on heat transfer characteristics. It was observed that the growth rate of ABS deposition decreased with the increase in wall temperature. At temperatures of 250°C, 300°C, and 350°C, the stable thickness of ABS deposition decreased to 4.09mm, 3.97mm, and 3.84mm, respectively. Moreover, the relative heat flux (RHF) also increases with the increase of wall temperature, from 0.68 at 250°C to 0.78 at 350°C. Consequently, an increase in the surface temperature of the heat transfer medium can effectively reduce the formation of ABS deposits and enhance the efficiency of heat transfer. |
| format | Article |
| id | doaj-art-d90bdc820db34a24bed1bce098b212ea |
| institution | OA Journals |
| issn | 2267-1242 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
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| series | E3S Web of Conferences |
| spelling | doaj-art-d90bdc820db34a24bed1bce098b212ea2025-08-20T02:19:35ZengEDP SciencesE3S Web of Conferences2267-12422024-01-015980100210.1051/e3sconf/202459801002e3sconf_icaeer2024_01002Experimental Study of The Growth of Ammonium Bisulfate Ash Deposition at Different Wall Temperatures and Heat Transfer CharacteristicsYu Yongfei0Pan Weiguo1College of Energy and Mechanical Engineering, Shanghai University of Electric PowerCollege of Energy and Mechanical Engineering, Shanghai University of Electric PowerThe deposition of ammonium bisulfate ash (ABS) is a common occurrence in the flue of a boiler in a power plant. This can result in a reduction in the efficiency of the selective catalytic reduction (SCR) process and the air preheater. To reduce the formation of ABS deposits in flue gas systems, extend the service life of SCR catalysts, and improve the efficiency of heat exchangers, online monitoring technology was employed to observe the formation of ABS deposits in a vertical one-dimensional furnace. The objective of this study is to investigate the formation of ABS deposits on heat transfer surfaces at varying temperatures and their impact on heat transfer characteristics. It was observed that the growth rate of ABS deposition decreased with the increase in wall temperature. At temperatures of 250°C, 300°C, and 350°C, the stable thickness of ABS deposition decreased to 4.09mm, 3.97mm, and 3.84mm, respectively. Moreover, the relative heat flux (RHF) also increases with the increase of wall temperature, from 0.68 at 250°C to 0.78 at 350°C. Consequently, an increase in the surface temperature of the heat transfer medium can effectively reduce the formation of ABS deposits and enhance the efficiency of heat transfer.https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/128/e3sconf_icaeer2024_01002.pdf |
| spellingShingle | Yu Yongfei Pan Weiguo Experimental Study of The Growth of Ammonium Bisulfate Ash Deposition at Different Wall Temperatures and Heat Transfer Characteristics E3S Web of Conferences |
| title | Experimental Study of The Growth of Ammonium Bisulfate Ash Deposition at Different Wall Temperatures and Heat Transfer Characteristics |
| title_full | Experimental Study of The Growth of Ammonium Bisulfate Ash Deposition at Different Wall Temperatures and Heat Transfer Characteristics |
| title_fullStr | Experimental Study of The Growth of Ammonium Bisulfate Ash Deposition at Different Wall Temperatures and Heat Transfer Characteristics |
| title_full_unstemmed | Experimental Study of The Growth of Ammonium Bisulfate Ash Deposition at Different Wall Temperatures and Heat Transfer Characteristics |
| title_short | Experimental Study of The Growth of Ammonium Bisulfate Ash Deposition at Different Wall Temperatures and Heat Transfer Characteristics |
| title_sort | experimental study of the growth of ammonium bisulfate ash deposition at different wall temperatures and heat transfer characteristics |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/128/e3sconf_icaeer2024_01002.pdf |
| work_keys_str_mv | AT yuyongfei experimentalstudyofthegrowthofammoniumbisulfateashdepositionatdifferentwalltemperaturesandheattransfercharacteristics AT panweiguo experimentalstudyofthegrowthofammoniumbisulfateashdepositionatdifferentwalltemperaturesandheattransfercharacteristics |