城市楼宇群风能利用时空关系仿真与分析

Space-Time Relationship Simulation and Analysis of Wind Energy Utilization in Urban Buildings

能源互联网作为下一代综合能源系统的重要组成部分,对解决经济发展过程中能源与环境的矛盾具有重要意义。在城市中,楼宇综合能源系统是节能潜力最大的领域之一,分布式风力发电机所提供的电能是楼宇理想的清洁能源。利用OpenFOAM软件实现了城市楼宇群尺度下风环境的动态仿真,建立了建筑环境风能时空分布的分析模型与计算框架。以纽约曼哈顿下城地区为例,基于真实的天气数据和楼宇负荷模型,实现了相关分析,并对楼宇群风能和负荷的匹配度进行了讨论,得出春季和日出日落时段风能丰富,高度高、建筑密度低的楼宇适宜利用风能,理想状况下风能可以提供建筑用能的10%以上。

As an important component of the next generation of integrated energy system, energy internet is of great significance to solve the energy and environmental contradictions in the process of economic development. In the city, the building integrated energy system is one of the largest energy-saving areas, electricity provided by distributed wind turbines is the ideal building clean energy. 0penFOAM software is used to realize the dynamic simulation of urban environment, and the analysis mode] and calculation framework of the temporal and spatial distribution of wind energy in the building environment are established. Taking the city of Manhattan in New York as an example, the correlation analysis is carried out based on the real weather data and the building load model, and the matching degree of wind energy and load is discussed. The main conclusions of this paper are as follows： the period of spring, sunrise and sunset is rich in wind energy; buildings with high height, low building density are suitable for the use of wind energy, wind can provide more than 10% energy under ideal condition.