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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.
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- Running the small version of HYDRONET
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- We recommend running this small version from DOS 3.0 or greater.
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- 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.
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- Tahoe Design Software's
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- HYDRONET - Small version
- Hydraulic Network Analysis Design Tool
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- Version 4.0
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- FOR THE PC/MS-DOS OPERATING SYSTEM
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- Tahoe Design Software
- P.O.Box 8128
- Truckee, California 96162
- (916) 582-1525
- FAX (916) 582-8579
- Copyright (c) 1994-1997, Tahoe Design Software
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- INTRODUCTION
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- 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.
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- 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.
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