Abstract This work presents the comprehensive development of a solar receiver for the integration into a micro gas-turbine solar dish system. Special focus is placed on the thermo-mechanical design to ensure the structural integrity of all receiver components for a wide range of operating conditions. For the development, a 3-dimensional coupled multi-physics model is established and is validated using experimental data. Contrary to previous studies, the temperature of the irradiated front surface of the absorber is included in the comprehensive validation process which results in a high level of confidence in the receiver design. Finally, a full-scale solar receiver for the integration into the OMSoP solar dish system is designed and its performance determined for a wide operating range to define its safe operating envelope using the validated model. It is shown that the receiver is capable of operating at 803°C with an efficiency of 82.1% and a pressure drop of 0.3% at the nominal operating point, while at the same time functioning effectively for a wide range of off-design conditions without compromising its structural integrity. At the nominal operating point, the maximum comparison stress of the porous absorber is 5.6 MPa compared to a permissible limit of 7.4 MPa.

中文翻译：

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基于微型燃气轮机的太阳能碟式系统的热机械太阳能接收器设计和验证

摘要 这项工作介绍了太阳能接收器的综合开发，用于集成到微型燃气轮机太阳能碟式系统中。特别关注热机械设计，以确保所有接收器组件在各种操作条件下的结构完整性。在开发过程中，建立了一个 3 维耦合多物理场模型，并使用实验数据进行了验证。与之前的研究相反，吸收器受辐照前表面的温度包含在综合验证过程中，这导致对接收器设计的高度信心。最后，设计了一个用于集成到 OMSoP 太阳能碟式系统的全尺寸太阳能接收器，并确定其性能适用于广泛的操作范围，以使用经过验证的模型定义其安全操作范围。结果表明，接收器能够在 803°C 下工作，在标称工作点的效率为 82.1%，压降为 0.3%，同时在各种非设计条件下有效运行，无需损害其结构完整性。在标称工作点，多孔吸收器的最大比较应力为 5.6 MPa，而允许极限为 7.4 MPa。同时在不影响其结构完整性的情况下，可以在各种非设计条件下有效运行。在标称工作点，多孔吸收器的最大比较应力为 5.6 MPa，而允许极限为 7.4 MPa。同时在不影响其结构完整性的情况下，可以在各种非设计条件下有效运行。在标称工作点，多孔吸收器的最大比较应力为 5.6 MPa，而允许极限为 7.4 MPa。