Study on effects of dust on wall temperature of the receiver in solar power tower system

万振杰; 苏继康; 范博尧; 魏进家; 方嘉宾; 刘洋; 吴学红

doi:10.19666/j.rlfd.202503071

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Study on effects of dust on wall temperature of the receiver in solar power tower system

更新时间：2025-11-21

- Study on effects of dust on wall temperature of the receiver in solar power tower system
- Thermal Power Generation Issue 11, Pages: 83-90(2025)
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- DOI：10.19666/j.rlfd.202503071
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- Published：2025
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万振杰, 苏继康, 范博尧, et al. Study on effects of dust on wall temperature of the receiver in solar power tower system[J]. Thermal Power Generation, 2025, (11): 83-90.
DOI：

万振杰, 苏继康, 范博尧, et al. Study on effects of dust on wall temperature of the receiver in solar power tower system[J]. Thermal Power Generation, 2025, (11): 83-90. DOI： 10.19666/j.rlfd.202503071.

摘要

国内外适宜发展光热发电的位置主要处于沙漠地区，环境中沙尘颗粒会沉积在接收器的吸热管道上，导致管道及涂层疲劳失效。为此，研究了沙尘颗粒对吸热管壁面温度的影响。采用数值模拟的方法，建立了沙尘-吸热管的耦合传热分析模型，模拟研究了沙尘粒径、沙尘与壁面接触大小、聚焦阳光能流密度强度对吸热管温度的影响。结论表明：吸热管上沙尘颗粒对温度的影响局限在很小范围内，但会造成吸热管局部高温热点；聚焦阳光能流密度越强、沙尘颗粒直径越大、沙尘颗粒与吸热管的接触越小，沙尘颗粒及吸热管高温热点的温度越高；沙尘颗粒温度可超过其熔点，形成钙镁铝硅酸盐（CMAS）沉积物，接收器面临CMAS腐蚀的风险；同时，吸热管高温热点将影响局部热应力分布，加剧接收器破坏，实际运行中应定期检查吸热管壁面清洁状况，避免大颗粒沙尘的积聚。该研究结果可为接收器的运行维护提供技术指导。

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