CPC式集热器放置倾斜角的选择方法

RESEARCH ON SELECTION METHOD OF TILT ANGLE FOR CPC-COLLECTOR

借鉴太阳能热水器放置的最佳倾角计算方法,研究复合抛物面聚光器(CPC)式集热器的辐射量计算模型,并给出南北轴放置时的最佳倾角计算思路。还结合南京、敦煌地区探索CPC式集热器的最大辐射量Imax与其最大接收角θmax和放置倾角β之间的关系,最佳倾角的确定可使接收的辐射能至少提高5%。

The calculation model of the radiant energy of the composite parabolic concentrator(CPC)collector is studied by using the best angle calculation method of the solar water heater,and the optimal inclination angle calculation method is proposed.The relationship between the maximum radiation Imax of the CPC-collector and its maximum receiving angleθmax and the inclination angleβis explored in the Dunhuang,Nanjing.The conclusion shows that the radiated energy of CPC-collector can be increased at least 5%by determining the optimum inclination angle.The study provides conveniences for further studies in future.