
Program
Idro
Aqueducts design

Purpose 

Aqueducts design.


Features 

The program calculates the steady state of an aqueduct.
It analizes the performance of the system and can be used to design system components to meet distribution
requirements.
In addition performs water quality modeling, calculating the source tracking and determining the staying time of the water.
Defining the
network
The network is described by a
directed graph in which:
 arcs are the elements of the
net,
 nodes are the points of
junction of two or more elements.
:Possible elements are:
 tanks
(feeds to the net),
 pipes,
 demands (concentraded in the
nodes or distributed along the pipes),
 head pumps,
 pressure relief valves,
 interception valves,
 minor losses
(pipe enlargements, pipe constrictions, bends, tee joints, .... ).
Applied
formulas
We
recommend using Darcy Weisbach Colebrook's
formula.
These
others are inserted only for completeness:
 Darcy' formula,
 Bazin's formula.
Contemporaneity
coefficient
Families
demands
are
strongly intermittent.
The more are the families supplied,
the less is probable that all flow rates have the maximum value at the
same time.
Contemporaneity
coefficient
is
defined as the ratio between maximum
theoretical demand
and real demand;
where maximum theoretical
demand is the product of family maximum demand by the number of supplied
families.
Contemporaneity
coefficient changes along the network.
To design correctly an aqueduct it is necessary to apply the contemporaneity coefficient to every pipe
flow rate, according to the number of families supplied by the pipe.
.
For more details see chapter 4.10 of book "Program Idro release
3.2  Steady state
calculation of an aqueduct) joined
to the program.
Chapter
4.10 Download (utidrin.zip)
Cheks
Program checks inputs values and
verifies the network behaviour.


Linking
to a cartographic system


The
program
may run in two ways:
 as a stand alone program,
 connected to a cartographic system.
In this second point the program only calculates the steady state and save
results.
These companies supply
cartographic systems including program Idro:
SMD 
via Milano, 4 
20070 Dresano (Mi) 
smd@smdserv.com 
Edison 
foro Bonaparte,
31  20121 Milano 
cesare.donati@edison.it 


Network
restrictions 

Program
is furnished in two editions: enterprise and light:
Entrprise
edition restriction
 maximum number of nodes
10000,
 maximum number of pipes
10000,
 maximum number of sources
200,
 maximum number of booster
stations 200,
 maximum number of relief
valves
200,
 maximum number of minor losses
200,
 maximum number of interception
valves 400,
 maximum number of gas mixture
components 12.
Light edition
restriction:
the maximum number of nodes is 400.


Platforms 

Windows 95 and those after.


Book 

Program
Idro  release 3.2
hydraulic
and water quality analysis for pipe networks



The
book (121 pages), written with contribution of Enidata (ENI group):
 describes, in detail, all the
equations utilized,
 explains how to use the
program.


Price 

Enterprise
edition
Program Idro + book : 500 euro + 100 (taxes) =
600 euro.Light
edition
Program Idro + book: 250 euro
+ 50 (taxes) = 300 euro.


Download 

Demo
program download
Program
description download


Ing. Valerio Tarenzi
via Pellegrino Rossi, 5 40131 Bologna
tel. 051523101
tarenzi_valerio@libero.it 