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User Comments

{"We use CAEPIPE to design the process coils in our steam cracking furnaces. These coils operate at temperatures between 1,200°F & 2,000°F. Supports must be sized properly to prevent coil distortion and rapid failure. CAEPIPE graphic displays are extremely useful in determining if we have input the geometry correctly and in evaluation of results." }

Arthur DiNicolantonio, Exxon, CAEPIPE user for over 12 years

{"The new graphics rendering feature [in CAEPIPE v5.x] is fantastic. It far exceeds the graphics of any other piping stress analysis program I have seen."}

Ed Patnode, Advanced Thermal, CAEPIPE user for over 10 years




Other Software

CAEFLOW - Steady

Steady state Fluid Flow Analysis Software


CAEFLOW–Steady State is the first of three modules for the analysis of single phase incompressible fluid flow in 3-dimensional piping systems with interfaces to 3D design packages (PDMS, PDS) and CAEPIPE, our piping stress analysis package. An incompressible fluid in CAEFLOW can be any gas or a liquid whose density may vary as a function of pressure or temperature but not velocity. Fluid flow under Mach 0.2 is treated as incompressible (CAEFLOW is not a CFD program).

You can apply CAEFLOW in

Design of gas/steam/liquid distribution systems in plants, buildings and service facilities
Pipe/Duct sizing at the process stage
Pump selection at P&ID stage
Optimization of pipe/duct sizes and pump sizes at layout stage
Performance studies for piping networks and associated equipment during operational stage

Two other modules under development are CAEFLOW–Transient and CAEFLOW–Thermal.

General Features

Windows based software with the ease of use one expects (Windows 95/98/NT, NT v3.51 not supported).
Spreadsheet-style input for 3-D modeling of piping networks.
Simultaneous split screen graphics display. Features include zoom, pan, rotate, render, etc. The results can be shown graphically on the piping network itself (flow directions, flowrates, etc.).
Extensive cross-referenced on-line help on software usage and the technical aspects of fluid flow in piping networks.
Dedicated results' browser is provided with basic word processor-like features, allowing the user to browse, or print the results. Option to view results at identified nodes.
Written in C++ with complete object oriented programming.
Well designed Graphical User Interface (GUI) that facilitates easy input.

Technical Features

CAEFLOW–Steady State module uses an improved proprietary numerical method called Nodal Iterative Technique. This method avoids a matrix-based solution allowing a larger problem capacity, that is, higher number of elements. Uses Darcy's formula for pipe friction loss, and Colebrook and White's formula for friction factor.
INDUSTRY STANDARD ELEMENTS SUPPORTED: Pipes, ducts, pumps/fans, filters, valves, fittings, etc.
COMPREHENSIVE DATABASE: Available for liquids and gases–water, steam, ideal gas, Ammonia, Carbon Monoxide, Carbon Dioxide, etc. Pipe thickness tables as per ANSI/JIS/DIN, dimensional database for fittings.
PUMP AND FILTER TYPES: Powerful preprocessors are available with plotting ability.
3D SYSTEM OF COORDINATES: Provided to be compatible with other piping and design software like CAEPIPE and PDMS.
TWO-WAY INTERFACES: User can directly import/export models from/to other software (CAEPIPE, PIPESTRESS, PDMS etc.) eliminating rekeying of model data.
BACKGROUND PROCESSING: If the problem size is huge and takes considerable computation time, the user can switch CAEFLOW to execute in the background, thus increasing user productivity.
MONITOR PROGRESS: User can pause execution at any time, browse the results, modify analysis control parameters, and resume execution. This is an important feature as the flow solution is nonlinear and needs iterations to converge to a final solution.
CROSS REFERENCED ON-LINE HELP: User has easy access to CAEFLOW theoretical information (methods and formulas). This allows user to use CAEFLOW in an informed manner.
PIPE CALCULATOR: Helps the user calculate the pressure drop/flow rates for a single pipeline (ductline). This can also be used to get the Reynolds number/friction factor for a particular pipe/duct in the network. Also, pipe wall thickness as per ANSI B31.1 and B31.3, and ASME Section III, Class 2 codes.
SELECTION OF A PUMP OR FAN: User can select pump/fan using on-line help.
CRANE'S CATALOG: Built-in catalog for valves and fittings.
PRE-PROCESSORS: Pump/Filter pre-processor for calculation of characteristic coefficients; Reducer/Bend pre-processor for calculation of Kp as per Crane's catalog.
CAEFLOW Spreadsheet
CAEFLOW spreadsheet and results (observe flexibility in displaying different colors for readability, selection of items, and easy to use icons)


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