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中文摘要：
提出了由太阳能腔式吸热器所需净能量推算其开口所需太阳光功率的计算模型。通过给定吸热器温升速率,计算得到了腔式吸热器在启动过程所需的净能量。根据吸热器所需净能量,结合吸热器的实际结构和周围的风速条件,计算获得了吸热器启动过程开口所需功率随时间的变化规律,并得到了启动过程的效率曲线和热损失曲线,可为吸热器的高效和安全启动提供理论指导。
英文摘要：
A calculation model has been built for calculating the solar power required at the aperture of solar cavity receiver.According to a given temperature rising rate of the receiver during the start-up period,the net energy that the solar cavity receiver needs is calculated.Based on the net energy,combined with the cavity geometry and wind condition,the variation curve of the solar power required at the aperture during the start-up is figured out.The curves of efficiency and heat loss of the solar cavity receiver are also obtained.The study is helpful to the efficient and safe start-up of solar cavity receiver.
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