Numerical analysis of ABS deposition and corrosion on a rotary air preheater
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Numerical analysis of ABS deposition and corrosion on a rotary air preheater
- 发表刊物：
- APPLIED THERMAL ENGINEERING
- 摘要：
- The Ammonium bisulfate (ABS), formed by the reaction of ammonia escaped from the selective catalytic reduction (SCR) system and sulfur oxides (SO) in the flue gas, could cause serious blockage and corrosion of the rotary air preheater (RAPH) in coal-fired power plant due to the porous structure and the just appropriate temperature window. In this paper, a numerical investigation is performed by using porous media approach in FLUENT software to study the effects of operation conditions, i.e., the temperature difference, mass flow rate, distribution of inlet flue gas flow rate, and rotational speed, on overall performance, ABS deposition and corrosion of RAPH. A local non-equilibrium thermal model is adopted. Good agreement between the numerical results and measured data is achieved. The results show that it is necessary to strictly control the temperature difference, mass flow rate and rotational speed, which have a significant influence on the overall performance. In addition, the distribution of inlet flue gas flow rate could affect the matrix temperature remarkably and play a positive role to reduce the blockage and corrosion tendency. (C) 2017 Elsevier Ltd. All rights reserved.
- 合写作者：
- Bu, Yufan ; Wang, Limin ; Chen, Xun ; Che, Defu
- 是否译文：
- 否
- 发表时间：
- 2018-02-25