结合雨水收集和洪水减缓系统的强大优化
Qiao Yan Soh1, Edward O'Dwyer1, Salvador Acha1
1Sargent Centre for Process Systems Engineering, Department of Chemical Engineering, Imperial College London, London, SW72AZ, United Kingdom.
Water research
|September 28, 2023
概括
大规模的雨水收集 (RWH) 和洪水减缓系统提供可持续的城市水资源管理. 优化这些系统可以提高水产,减少城市洪水,提高资源效率.
科学领域:
- 环境工程 环境工程
- 城市水资源管理
- 可持续的基础设施可持续的基础设施
背景情况:
- 联合大规模雨水收集 (RWH) 和洪水减缓系统对于可持续的城市水资源管理至关重要.
- 这些多用途的基础设施提供了当地水资源,并减少了废水网络负载.
- 系统性能在很大程度上依赖于特定于当地水域的设计,缺乏通用框架.
研究的目的:
- 为被动操作的RWH系统提供一种新的双参与者优化框架.
- 开发一个可定制的工具集,快速创建集水区特定的优化模型.
- 为资源高效系统实施复杂的尺寸策略克服障碍.
主要方法:
- 利用了一个随机设计优化模型和一个竞争的高强度降雨设计模型.
- 开发了一个可定制的工具集,用于构建针对特定采集区量身定制的RWH优化模型.
- 将框架应用于一个人口密集的高层住宅区.
主要成果:
- 从历史降雨数据中成功消除了溢出事件.
- 收获的水产量增加了32%.
- 鉴定了因处理的运行水平而满足灌需求的限制.
结论:
- 优化框架有效地提高了RWH系统性能和洪水缓解.
- 将运营级别纳入模型是满足水需求和减少水域压力的关键.
- 该框架促进高效,大规模的RWH系统,以实现综合城市水资源管理.
相关概念视频
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
63
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
63
Design Example: Design of an Irrigation Channel
124
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
124
Conservation of Mass in Moving, Nondeforming Control Volume
1.1K
Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
1.1K
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Design Example: Maintaining Level of an Embankment
85
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
85
Adaptations that Reduce Water Loss
25.7K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.7K


