The 'workhorse' software of pipeline calculations
The 'workhorse' software of pipeline calculations, this set of 16 routines builds upon a timetested, proven program which originally appeared in 1983. Version 4.02 offers features which reflect the capabilities of today's computers and operating environments. Read on for some details.
Most routines allow you to calculate upstream pressure, downstream pressure, flowrate, pipe diameter, and length, based on your input for the other variables. Several routines produce graphic displays of computational results automatically. Reference databases, unit conversions, clipboard utility, and a host of other features will make you want to keep PipeCalc an active icon on your desktop.
Input some data onto a form and press CALCULATE. Now, save this data to the database and recall the parameters into a different flow equation. Compare the results of the Weymouth gas flow formula with the AGA formula, for example. Which better represents your pipeline? Now increment some variable and instantly put 63 (or whatever) new computations into a table. Now create plots of that table data showing any variable on any axis!
That's right! You can now instantly build tables and plots of your calculations and input data without entering any new data! For example, you can build a pressureflow relationship by specifying that the downstream pipeline pressure should vary from 100 psig to 500 psig in increments of 5 psig, and recalculate the flowrate for each increment. This instantly gives you 80 data points showing you exactly how much flow you lose as your pressure increases. Four mouse clicks later and you have a plot showing the smooth curve relating flowrate with downstream pressure. And you can do this with any variable! Think of the possibilties!
Operators, take note of the problems that can be quickly adressed: What is the effect of changing pipe roughness on upstream pressure? How does changing product density impact flowrate and pressure and required pipe diameter? What does a change in temperature do to the pressure drop? How long to blowdown this line? How long to fill and pressure it for a hydrotest? Backcalculate your pipe roughness factor based on actual observed conditions to establish baselines (footprints) of your pipelines to monitor for interior buildups or other changes.
Designers! note the questions that are easily answered: What is the required pipe diameter for these proposed conditions? How much compressor horsepower is needed? What standard wall thicknesses are available? What is the buoyancy of this pipe? How much will it cost to coat this line?
There is a neat little, realtime conversion utility to switch between (and among) common English and Metric (SI) units. If you know the flowrate in cubic feet per second but you need it in gallons per minute, simply use this routine to convert your known value into its gpm equivalent, right on the data input form!
Important routines for any pipeline operation include:
 5 common equations for gas flow calculations are provided: Oliphant, Panhandle AB, AGA, and Weymouth with guidance offerred as to the applicability of each.
 2 additional gas pipeline routines are a blowdown model (time to depressure vs stack diameter) and the AGA orifice flow metering equation (automatic graphing for each of these)
 HazenWilliams is provided for liquid flow calculations
 BeggsBrill calculates multiphase flow conditions
 Surge analysis calculations examine the 'water hammer' phenomenon
 Gas or liquid networks can be modelled (500 node maximum)
 Pipe wall thickness calculations based on Barlow's formula (DOT uses this) are done
 Pipe material and coating cost estimating
 A temperature profile for a pipeline can be calculated and plotted
 A hydrostatic test calculation sheet is provided (time to fill, volume to reach test pressure, pressure rise per deg F, and more)
 Compressor analysis allows design of a centrifugal or reciprocal machine and the analysis of an existing reciprocal machine
 Includes 10 usercustomizable databases to eliminate the need for most outside reference sources
The scope and breadth of the PipeCalc software (and at this low price!), makes this a valuable addition to any pipeline professional's took kit.
Sample Screens (for enlarged view click on image)

Main Menu 

Plots 

Plot Graph 

Pipe Material 

Requirements: 

4MB RAM, 4MB Free hard disk space, VGA.(U.S. and SI units). Software may not work on all versions of Windows 7. It will run on Windows 7 If you download the XP Compatibility mode for Windows 7 from Microsoft's website. It will run your PC in XP virtual mode...you would install the software on the virtual machine. 
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