ce 3372 water systems design introduction to us epa-net

CE 3372 Water Systems DesignIntroduction to US EPA-NET

Objectives

Review of Lecture 4

Introduction to EPANET Install on (PC/Mac)Example problem (from last time) on EPANET

Workshop Example problems

Exercise Set 3 (EPANET problems)

REVIEW

Water Supply System

Distribution Network

Pressure

Network Layout

REVIEW

REVIEW

Distribution network - Consists of items designed to convey potable water at adequate pressures and discharges

Tanks

Pumps

Pipes

Valves

Fittings

Meters

Other appurtenences

EPA-NET

Computer program that simulates flow in closed conduit (pressurized) systems

NodesLinks (pipes, pumps, valves)Reservoirs (reservoir, tanks)Demand schedule (extended period simulation)

Getting the Program

Download and install EPA-NETPC Users – Google EPANET MAC Users – Use the class website

Download and PRINT the user manualTopology constructed in a GUILengths, diameters, friction terms entered for each component (pipe, valve)Demand entered for each node (+ outflow, - inflow)

Getting the Documentation

Download and PRINT the user manualEPANET website, or class website.

Topology constructed in a GUILengths, diameters, friction terms entered for each component (pipe, valve)Demand entered for each node (+ outflow, - inflow)

About the program

Topology (Network Layout) is constructed in a GUI

Nodes

Demand entered for each node (+ outflow, - inflow)

Links

Lengths, diameters, friction terms entered for each component.

Pipes, Pumps, Valves are all “link” components

Reservoir/TankAll models need a reservoir (like the ground in an electric circuit)

Stuff you Have to Choose

Head Loss ModelsDarcy-WeisbachHazen-WilliamsChezy-Mannings

Flow units (CFS, GPM, CMS and such)Select SI or US Customary before building a modelThe program does not convert units.

WorkshopInstall

Example 1 – Single pipeline

Example 2 – Flow between two reservoirs

Example 3 – Three reservoir (branched)

Example 4 – Two reservoir, 4 pipes (loop)

Example 5 – Lifting with a pump

Installing• Get the software from

• http://cleveland2.ce.ttu.edu/teaching/ce3372/Programs/

• Or from the flash drive passed around class for the Mac OSX users.

Example 1• Single pipeline

Example 2• Example 2 – Flow between two reservoirs

Example 3• Example 3 – Three reservoir (branched)

Example 4• Example 4 – Two reservoir, 4 pipes (loop)

Example 5• Example 5 – Lifting with a pump