由于太阳能在时间上的非连续性使得太阳能腔式吸热器要频繁地经历不同的启动过程,对腔式吸热器在冷态启动、温态启动和热态启动过程中的热性能进行了模拟。计算得到了吸热器在三种启动过程中入口处所需的太阳光能量,可为定日镜场的布置及控制提供理论指导,同时还得到了吸热器在启动过程中热效率及辐射热损失、对流热损失随时间变化的曲线。 Due to the temporal discontinuity of the solar energy, the solar cavity heat sinks frequently undergo different start-up processes, and the thermal performance of the cavity heat sink during cold start, warm start and hot start simulation. The solar energy energy required for the entrance of the heat absorber during the three startup processes is calculated, which can provide theoretical guidance for the arrangement and control of the heliostat field. At the same time, the thermal efficiency and radiant heat Loss, convection heat loss over time curve.