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ASME's Mechanical Engine…ing Toolkit 1997 December
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ASME's Mechanical Engineering Toolkit 1997 December.iso
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fluid
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hn4small.exe
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Readme.txt
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This small version is limited to systems of 26 nodes, 22 pipes,
16 valves and fittings and 2 pumps. With these limitations it is
able to retrieve all the HYDROFLO sample problems. It will only
allow you to create 10 loops and 5 branches. The HN.DOC file is
the full text of the full version HYDRONET manual. It is fairly large.
Running the small version of HYDRONET
We recommend running this small version from DOS 3.0 or greater.
To start the small version of HYDRONET, in DOS move to the directory
where you have unpacked the HN4small.exe file and type SMHN. You
then must specify the type of display adapter you have. We recommend
option #4 VGA. HYDRONET will take a few seconds to load.
Tahoe Design Software's
HYDRONET - Small version
Hydraulic Network Analysis Design Tool
Version 4.0
FOR THE PC/MS-DOS OPERATING SYSTEM
Tahoe Design Software
P.O.Box 8128
Truckee, California 96162
(916) 582-1525
FAX (916) 582-8579
Copyright (c) 1994-1997, Tahoe Design Software
INTRODUCTION
HYDRONET is a hydraulic network analysis tool based on the popular
Hardy-Cross method. A hydraulic network is a closed pressurized
fluid distribution system made up of pipes, fittings, valves, pumps
and reservoirs. Examples of networks are industrial fluid conveyance,
municipal water supply, fire protection sprinkler, petroleum transport
and recirculating HVAC systems. In a network, many interconnected
conveyance lines deliver liquids to numerous destinations simultaneously.
The change in flow through any single pipe influences the flow in all
other regions of the network. The engineer must know the operational
steady-state flows and pressures throughout the system so that pipe and
pump sizes and system strengths can be specified to meet cost and safety
criteria. These steady-state flows and pressures can only be determined
through an iterative flow adjustment process. The Hardy-Cross method
lends itself to this task and, with the help of computers, the analysis
of hydraulic networks becomes a straight forward process. Once a system
is defined by describing the components in detail, various operational
strategies can be investigated.
The full featured version of HYDRONET provides the ability to model large
systems of up to three thousand nodes and three thousand pipes, valves,
fittings and pumps. Saving of datafiles, report output to file or printer
and digitizer support is also available. This small version is limited to
systems of 26 nodes, 22 pipes, 16 valves and fittings and 2 pumps. With these
limitations it is able to retrieve all the HYDROFLO sample problems. It will
only allow you to create 10 loops and 5 branches. By using the Hazen-
Williams and Darcy-Wiesbach equations to determine pipe head losses, any
type of incompressible fluid can be modeled in an analysis when the proper
fluid properties and pipe conditions are known. HYDRONET also provides
plots of the 2-dimensional system plan view, 3-dimensional view of the
overall system, hydraulic grade lines and pump performance curves. A
complete menu of fittings and valves are available for incorporation into
hydraulic systems. Various control valves can be modeled and will
accurately simulate their physical operating characteristics. If you have
a Summagraphics or compatible graphics tablet (digitizer), x-y coordinates
for nodes can easily be entered and 2D and 3D system graphics can rapidly be
created.