Mathematical model for thermal process was established in this paper.The thermal performance of the collector were analysed through solving four nonlinar,simultaneous equations by means of SOR.

• 通过用松弛迭代法求解四个非线性方程对集热器的性能进行了分析,并在中温集热器测试台上对该集热器的主要性能指标进行了实验测定。