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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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太阳能高温异型热管热应力数值摸拟
, PP. 68-73
Keywords: 太阳能,高温相变反应器,高温异型热管,热-应力耦合,均温性
Abstract:
在太阳能高温热化学转化利用中,传统的直接照射式太阳能高温反应器和间接照射式两腔太阳能高温反应器均存在局部高温热点、两腔间传热能力差等问题。为此,应用高温热板-热管技术研制了新型太阳能高温相变反应器,其核心部件为高温异型热管(htshp)。为分析htshp的热承载能力,构建了传热热阻模型,采用有限元分析软件ansys的热-应力耦合功能,对htshp在稳态条件下的温度场、应力场、热变形进行了数值模拟。结果表明,htshp最高温度为768℃,最大温差为18℃,均温性和传热能力较好;热应力集中于过渡连接的热板内壁上,最大应力为24.6mpa,满足钢制压力容器分析设计标准的要求。
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