超高层楼房雨水资源水力发电系统设计研究

为了改善城市生态环境,提高城市自然资源利用率,首先提出了超高层建筑雨水资源利用水力发电的总体架构设计(包括管路设计和涡轮机选型);其次基于流体力学基本方程,构建了涡轮机水流模型,分别应用流体力学模拟、试验和数值解的方法研究了涡轮机出力情况及其设计实体模型的数值解问题;最后选择我国南方某城市的一座50层210m高的楼房为例,对雨水资源利用发电出力进行了研究。结果表明,利用高层楼房雨水水力发电可行,年降水量在1 600mm的条件下,平均1.0×104 m2的超高层楼房雨水蓄积可实现年发电量为271.3×104 kW·h。

Study on Hydropower Generation System Design from Rainfall Collection in a High Building

In this paper, a general framework design of rainfall hydropower generation including pipeline and turbine selection was proposed for the improvement of urban eco-environment and natural water resources utilization. Based on fluid mechanics theories, turbine flow model was set up. The fluid mechanics simulation, experiment and arithmetic solution were used to deal with hydropower output and pattern layout. Finally, a building with 50 floors and 210 m height was chosen as the case study. It is proved that the present findings should play an important reference value in rainfall hydropower generation on the high buildings. Under the normal condition of annual precipitation 1 600 mm, the hydropower output would reach 271.3×104kW·h annually for a high building with 1.0×104m2 roof area.