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NUMERICAL SIMULATION OF COMBUSTION IN 300 MW TANGENTIALLY FIRED PULVERIZED HIGH-ALKALI COAL BOILER ON UNDERLOAD OPERATION

Xuehui Jinga,* , Wei Lia, Zhaoyu Lia , Zhiyun Wangb

a State Grid Xinjiang Electric Power Research Institute, Urumqi 830001, China
b School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
* Xuehui Jing. Email: jingxh0328@163.com

Frontiers in Heat and Mass Transfer 2023, 20, 1-4. https://doi.org/10.5098/hmt.20.19

Abstract

This paper numerically simulates the combustion in a 300MW tangentially fired pulverized high-alkali coal boiler under low-load conditions. The combustion process, temperature distribution and the thermal load in the furnace at different height are analyzed under three different load conditions, which are 30%, 45% and 60% of full load. The temperature distribution and the variation of NOx concentration under different load conditions are investigated, as well. The results show that the combustion processes of pulverized high-alkali coal in the furnace are similar under different load conditions, but the positions of the fuel’s full combustion are related to the loads. With the load increasing, the high temperature area gradually expands from the burner area to the central area of the furnace and extends to the upper part of the furnace. The distribution of NOx concentration is significantly related to the loads. The distributions of NOx concentration at 45% and 60% of full load are roughly similar, and mainly concentrate in the areas near the burner and up the burner area, which are the high temperature regions. But the distribution of NOx at 30% of full load mainly concentrates in the upper part of the furnace, while the NOx concentration in the burner area is relatively low.

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APA Style
Jing , X., Li, W., Li , Z., Wang, Z. (2023). NUMERICAL SIMULATION OF COMBUSTION IN 300 MW TANGENTIALLY FIRED PULVERIZED HIGH-ALKALI COAL BOILER ON UNDERLOAD OPERATION. Frontiers in Heat and Mass Transfer, 20(1), 1-4. https://doi.org/10.5098/hmt.20.19
Vancouver Style
Jing X, Li W, Li Z, Wang Z. NUMERICAL SIMULATION OF COMBUSTION IN 300 MW TANGENTIALLY FIRED PULVERIZED HIGH-ALKALI COAL BOILER ON UNDERLOAD OPERATION. Front Heat Mass Transf. 2023;20(1):1-4 https://doi.org/10.5098/hmt.20.19
IEEE Style
X. Jing , W. Li, Z. Li , and Z. Wang "NUMERICAL SIMULATION OF COMBUSTION IN 300 MW TANGENTIALLY FIRED PULVERIZED HIGH-ALKALI COAL BOILER ON UNDERLOAD OPERATION," Front. Heat Mass Transf., vol. 20, no. 1, pp. 1-4. 2023. https://doi.org/10.5098/hmt.20.19



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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