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提出了一种新型中央接收式太阳能高温集热系统,介绍了系统的运行原理,分析了系统的热效率影响因素。这个新型的太阳能高温集热系统具有如下特点:可将多个光漏斗和偏光器组成一个太阳能聚光器阵列,每个聚光器都能将低能流密度的太阳光束会聚成高能流密度的平行光束,并由偏光器传送到中央接收器,于是中央接收器可获得很高的太阳光照射能流,转化为热能后将产生很高的温度,从而实现太阳光高温聚能。本系统的中央接收器无需建在高塔上,节省了建设费用,而且所有光漏斗跟踪太阳的方式相同,控制策略简单,定向偏光器的出光方向设定后可以固定不变,因而使整个系统结构简单,技术上易于实现。
A new type of central receiving solar energy high temperature heat collecting system is proposed. The operation principle of the system is introduced. The influencing factors of the thermal efficiency of the system are analyzed. The new solar thermal collector system has the following features: Multiple light funnels and polarizers can be combined to form a solar concentrator array. Each concentrator can converge a low-energy-density sun beam into high energy flux density parallel The light beam is transmitted to the central receiver by the polarizer, so that the central receiver can obtain a high energy flux of sunlight, which will generate high temperature after being converted into heat energy, so as to achieve high temperature solar energy concentrating. The central receiver of the system need not be built on the tower, saving the construction cost, and all the light funnels track the sun in the same way. The control strategy is simple. The orientation of the directional polarizer can be fixed after setting the light direction, so that the entire system Simple structure, technically easy to implement.