夏热冬冷地区办公建筑用能源总线系统夏季运行特性研究  

Simulation Analysis on the Operating Performance of Energy Bus System for Office Buildings in Hot Summer and Cold Winter Area

作　　者：孙可欣 范蕊[1] 步婷 周亿冰 史洁[1] SUN Kexin;FAN Rui;BU Ting;ZHOU Yibing;SHI Jie(Tongji University,Shanghai 200092,China;Shanghai Research Institute of Building Sciences CO.,LTD.,Shanghai 200032,China)

机构地区：[1]同济大学,上海200092 [2]上海市建筑科学研究院有限公司,上海200032

出　　处：《建筑科学》2022年第4期25-36,共12页Building Science

基　　金：国家自然科学基金项目“基于不确定性的集成低品位能源总线系统运行机理与多目标优化研究”(52078356)。

摘　　要：能源总线系统(EBS)可集成多种低品位可再生能源,成为当前能源转型形势下实现供暖电气化的一种途径,源-网-荷一致性分析对于多源多汇的能源总线系统运行具有重要影响。为探讨能源总线系统应用于办公建筑中的多源匹配运行方案,本文在Dymola中建立以地表水和冷却塔为热汇的办公建筑用能源总线系统供冷模型,分析源侧、管网、负荷侧及系统整体的热力、水力特性、系统能效等。文章针对双热汇多用户系统的不同工况进行仿真研究,为夏热冬冷地区小型办公建筑采用能源总线系统供冷设计提供指导建议和数据参考。结果表明,以地表水为主热汇、冷却塔为辅助热汇且采用温度控制的系统运行能耗最低,且温度水平更利于热泵高效运行。Energy bus system(EBS) can integrate a variety of low-grade renewable energy, which has become a way to realize heating electrification under the current energy transformation. The source-network-load collaborative mode has an important impact on the operation of multi-source and multi-sink energy bus system. In order to explore the multi-source matching operation scheme of the energy bus system applied in office buildings, this paper established a model of the energy bus system of office buildings in Dymola, which took surface water and cooling tower as the heat sinks, then analyzed system energy efficiency and the thermal, hydraulic characteristics of the source side, pipe network and load side. A simulation analysis on different working conditions of the dual heat sink four-user system was conducted, providing guidance and data reference for the design of small office buildings in hot summer and cold winter areas using energy bus systems for cooling. The results show that the system equipped with temperature control strategy, with surface water as the main heat sink and cooling tower as the auxiliary heat sink has the lowest energy consumption, and the temperature level is more conducive to the efficient operation of the heat pump.

关 键 词：夏热冬冷地区 办公建筑 能源总线系统 源-网-荷一致性 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]