Developing a Whole-systems Approach to the Simulation of Connected Flow-routing within a Property

摘要

There has always been a requirement to better understand, through modelling, the flow conditions of the property-level water supply and drainage system.In many situations, the conventional approach has been to review the different components of the system, mainly categorized as water supply, rainwater discharge and wastewater discharge systems, in isolation.But due to the increasing pressure on water conservation,decentralized water saving options such as rainwater and greywater recycling, which can be seen to interconnect system components, are being integrated at the domestic scale.Little attention has been given to the assessment of the overall impact of this interconnectivity, which if properly understood, can illustrate how different water-saving options perform in terms of attenuation and 'residence time'.This paper illustrates the modelling approach developed for a complete flow route within a property-based system.The significance of using a whole-systems modelling approach, which then allows the simulation of flow attenuation and identification of changes that can assist in estimating the residence time of water,either from rainfall or mains water, has been highlighted.