The distributed solar centralized heating system (DSCHS) is formed by connecting the dispersed solar heating users through the heat pipe network. This system is designed based on research into the effect of various types of distribution ratios of heat users on the overall operating performance of the heating system. Based on the energy balance process analysis of the distributed solar heating system, the mathematical model of thermodynamic analysis is established. Three performance evaluation indexes of solar fraction, available heat collection coefficient, and cluster effect coefficient are proposed to quantitatively analyze the cluster heating characteristics of different types of heat users. The thermal profit and loss characteristics of various types of heat users are obtained by numerical simulation, and the influence of user types and distribution ratio on system performance is quantitatively analyzed. The results indicate that when a system has the surplus, self-satisfaction, and unsatisfied users concurrently, the system's performance parameters are optimum. Especially the cluster effect coefficient increases by 55.2% compared with the system with only one type of user. The cluster effect coefficient of the three types of users with uniform distribution is 8.9% − 21.3% higher than that of the extreme distribution. Meanwhile the system's solar fraction and available heat collection coefficient remain elevated, indicating that the advantage of user cluster heating is obvious.

分布式太阳能集中供热系统（DSCHS）是通过热管网将分散的太阳能供热用户连接起来形成的。该系统是在研究热用户各类分配比例对供热系统整体运行性能影响的基础上设计的。基于分布式太阳能供热系统的能量平衡过程分析，建立了热力学分析的数学模型。提出太阳能分数、有效集热系数和集群效应系数三个性能评价指标，定量分析不同类型热用户的集群供热特性。通过数值模拟得到各类热用户的热力盈亏特征，定量分析了用户类型和分配比例对系统性能的影响。结果表明，当一个系统同时存在剩余用户、自我满足用户和不满意用户时，系统的性能参数是最优的。尤其是集群效应系数比只有一种用户的系统增加了55.2%。均匀分布的三类用户的集群效应系数比极端分布的高8.9%-21.3%。同时系统的太阳能分数和可用集热系数保持较高水平，说明用户集群供热优势明显。和不满意的用户同时进行，系统的性能参数是最优的。尤其是集群效应系数比只有一种用户的系统增加了55.2%。均匀分布的三类用户的集群效应系数比极端分布的高8.9%-21.3%。同时系统的太阳能分数和可用集热系数保持较高水平，说明用户集群供热优势明显。和不满意的用户同时进行，系统的性能参数是最优的。尤其是集群效应系数比只有一种用户的系统增加了55.2%。均匀分布的三类用户的集群效应系数比极端分布的高8.9%-21.3%。同时系统的太阳能分数和可用集热系数保持较高水平，说明用户集群供热优势明显。