唐宪友,张亚南,李欣怡,白凤武,王志峰

• 1:中国广核新能源控股有限公司
• 2:中国科学院电工研究所
• 3:中国科学院大学

摘要(Abstract)：

熔盐塔式太阳能热发电技术是目前国际主流的光热发电技术，熔盐吸热器作为将太阳能转换为热能的核心设备，其性能直接影响系统发电效率，吸热器安全性影响电厂运行小时数。因此，建立熔盐吸热器传热模型，获得准确的传热特性十分重要。对主流的外置圆柱式熔盐吸热器的传热计算模型进行了系统梳理，总结了传热模型中投入辐射能、辐射热损失、对流热损失及熔盐得热量的计算过程及基本方法。根据计算结果的精细程度，吸热器传热模型分为详细模型和简化模型。详细模型的计算精度高，能细致反映实际能量转换过程，但计算成本较高，瞬态过程计算耗时多，但其特定工况的计算结果可为简化模型提供计算结果的验证参考。简化模型是对描述熔盐吸热器传热特性的理论模型做合理简化，在较为准确地完成计算的同时具备较快的计算速度，多用于吸热器设计阶段。通过各模型特点及性能的总结对比，可为熔盐吸热器热性能计算过程的传热模型选择提供技术指导。

关键词(KeyWords)： 熔盐塔式太阳能热发电技术;外置圆柱式吸热器;计算模型;热性能参数

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（51976213）~~

作者(Author): 唐宪友,张亚南,李欣怡,白凤武,王志峰

DOI: 10.19666/j.rlfd.202403052

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