Jessica Bohorquez

University of Adelaide · School of Civil, Environmental & Mining Engineering

The occurrence of bursts in water pipelines can not only prevent the system from functioning properly, but it can also produce significant water loss that disrupts activities in urban areas. Therefore, the detection and location of bursts in water distribution systems is a vital task for water utilities. Various techniques currently exist to detect...

Fluctuations in pressures are part of the normal behavior of water distribution systems. The common perception is that transient events dissipate quickly in a network without significant consequences; however, under certain circumstances, the superposition of waves from a transient event can magnify the pressure response, effectively accumulating h...

The Battle of Water Networks District Metered Areas (BWNDMA) was the latest of the Battle of Water Networks competition series held at the 18th Water Distribution Systems Analysis Conference (WDSA 2016) as part of ASCE's Environmental and Water Resources Institute (EWRI) stand-alone conferences in Cartagena, Colombia in July 2016. In these competit...

Sedimentation in Urban Drainage Systems is a huge problem that allow changes in cross-sectional area, and therefore changes in pipe's roughness. The increase of suspended solids deposition and consolidation in pipes affect the velocity and shear stress distribution inside these elements [1]. Some authors have proposed methodologies to prevent sedim...

Diverse studies have shown that mixing within pipe junctions is neither complete nor instantaneous. However, these studies have focused in understanding mixing phenomena at junctions, without applying these results in water quality modeling of water distribution networks. This paper focuses on the application of both the complete and incomplete mix...

The analysis of water distribution systems (WDS) is carried out under the premise that the flow that passes through the network’s components remains in steady state, i.e., that its conditions are stable over time. However, flow and pressure conditions are very susceptible to changes in the hydraulic elements of the system, so that any variation tha...

Water quality in potable water distribution systems has been especially studied from the point of view of mixing processes in network junctions. Programs such as EPANET usually assume that there is complete mixing. However, researchers such as Romero-Gómez et al.have questioned this assumption and conducted a series of experiments which showed mixi...

This project seeks to explore the way in which calibration of water quality models is made in WDS studying determinants such as water age and residual chlorine concentration. In this approach, we search for physical and chemical properties that help the calibration process, preventing it from being a simple numerical adjustment. There are two reaso...

A significant percentage of Water Distribution Systems' operation costs is due to energy consumption on pumping systems as well as lost water due to leakages. The main reason of these high costs is a non-optimized pumping pattern that leads to excessive overall pressure on the network. This study presents a methodology that permits to find what wou...

This paper presents a methodology to rehabilitate and manage leakages on the C-Town water distribution system. A hydraulic model with emitters was considered to represent pipe leakages as concentrated flows in the nodes. The proposed methodology introduces two hydraulic concepts: The unit headloss to rehabilitate the network and the flow-pressure c...

Operational rules are key to accomplish a proper management of a Water Distribution Systems and transient flow events are also important to control because it can affect a system in a serious way. This paper proposes a methodology for obtaining the optimal valve closure curves in a real WDS in Bogotá, Colombia in an emergency scenario. The paper fi...

This paper presents a methodology to rehabilitate and manage leakages of C-Town water distribution network. A hydraulic model with emitters was considered to represent leakages in pipes concentrated in the nodes. The methodology uses the Unit Head loss to rehabilitate the network, the Flow-Pressure concept to locate valves and GA for the pump optim...

The Battle of the Water Networks II (BWN-II) is the latest of a series of competitions related to the design and operation of water distribution systems (WDSs) undertaken within the Water Distribution Systems Analysis (WDSA) Symposium series. The BWN-II problem specification involved a broadly defined design and operation problem for an existing ne...

This paper presents a methodology to rehabilitate and design the expansion of D-Town water distribution network. The methodology uses the Unitary Power concept, the OPUS design algorithm and an optimization process for reducing pumps usage. The final result shows that all the requirements of the problem were accomplished with a small computational...