7/29/2019 Kanta GIS Poster

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Integrating GIS With EPANet

Texas A&M Universi ty

Department of Civi l Engineering

Instructo r: Dr. Francisco Olivera

CVEN 689 Civil Engineering Applications of GIS, Spring 2004

Lufthansa Kanta

May 3, 2004

AbstractThe hydraulic simulation models are key tools for design, analysis, operation and maintenance of the water distribution systems. Most of the models require extensive spatial

and hydraulic infrastructure data such as topographic map, street map, utility map, land use data, site development plan, etc. GIS can provide all these information as it has

the unique ability to capture and store spatial data, to build relational database and to display data graphically. GIS can also be used as a long term planning tool for thewater distribution systems as it can be easily updated as development occurs.

Building a network is the first step of the hydraulic simulation. Manual schematization of the network is extremely resource and time intensive. GIS can be a useful tool to

build a hydraulic model for water distribution system. This project demonstrates how to create EPANet hydraulic model input data using GIS.

Data

1. City of College Station - Water lines data

2. City of College Station - Land use data

3. Brazos County Polygon Shapefile

4. USGS 30 m DEM

Software Requirement

1. ArcGIS 8.x

2. ArcView 3.x

3. EPANet 2.0

Methodology

1. Downloading ArcView Extension from ESRI web site (http://arcscripts.esri.com/details.asp?dbid=10117)

2. Skeletonizing the Network

3. Calculating Demand from Land Use Data

4. Creating Elevation Map from USGS 30 m DEM

5. Creating EPANet inp format file using HydroGen (Hydraulic Model Generator) Extension Version 2.2

6. Importing inp format file in EPANet 2.0 and Adding Pumps, Tanks and Reservoirs to the network

7. Performing Hydraulic Simulation using EPANet 2.0

Skeletonizing the Network

Calculating Demand from Land Use Data

Typical Demand: (Suggested by Dr. Kelly Brumbelow)

Residential - 40 GPD/Acre Industrial 75 GPD/Acre Commercial 160 GPD/Acre

Creating Elevation Map from USGS 30 m DEM

Creating EPANet data file using HydroGen

Performing EPANet Hydraulic Model

Simulation

HydroGen (Hydraulic Model Generator) Version 2.2

This is an ArcView 3.x extension which can create EPANet inp format file using Water lines shapefile,

Demand Polygon shapefile and Elevation Map. The extension can handle only pipes and nodes; othernetwork objects like pumps, control valves, tanks and reservoirs should be added to the network manually

by the user after generating EPANet hydraulic model input file. This extension calculates base demand fornetwork nodes from demand polygon and gathers elevation data for the nodes from elevation map.

HydroGenExtensionButtons