分布式“源汇一体”太阳能供暖新系统探索
Exploration of a new distributed solar heating system with “integrated source-sink”
摘要：
集中太阳能供暖系统需要大面积空地安装集热器阵列，在土地资源紧缺地区应用受限。单体建筑太阳能供暖系统虽能够有效利用建筑屋面进行集热，但其供暖稳定性相对较差。针对现有太阳能供暖系统应用的局限性，提出了一种分布式“源汇一体”太阳能供暖新系统。本文介绍了该系统的工作原理，定性分析了该系统与传统系统的特征区别，探讨了该系统在热用户节点、输配管网形式、蓄热设计等方面亟待解决的关键问题。
Abstract：
Centralized solar heating systems require large amounts of land to install collector arrays, limiting their application in areas where land resources are scarce. Solar heating systems for single buildings can make effective use of the building roof for heat collection, but their heating stability is relatively poor. A new distributed solar heating system with “integrated source-sink” is presented in response to the limitations of existing solar heating systems. This paper presents the principle of the distributed solar heating system with “integrated source-sink”, qualitatively analyses the differences between the system and traditional systems, and discusses the key issues to be solved in terms of the heat-user nodes, the network forms and the heat storage design.
Keywords:solar heating; distributed heating; integrated source-sink; busbar network; bidirectional heat exchange; heat surplus and deficit; capacity matching