AFT Arrow provides the systems engineer the capability to model real gases undergoing real processes. Along with its equipment simulation capabilities and extensive output reports, AFT Arrow is ideally qualified for modeling real compressible flow systems including steam, compressed air, chemical and petrochemical process gases, natural gas transport and many more.
AFT Arrow’s powerful solution engine simultaneously solves the five fundamental equations of flow; mass, momentum, energy, state and Mach number. Users may select ideal or real gases, and between isothermal, adiabatic or generalized heat transfer conditions. An intelligent solver sets a new standard in solver robustness and speed by dynamically selecting the optimum calculation method based on the solution progress. This analytical power is readily accessible through an interface that assures a short learning curve and high productivity. Models are assembled graphically in a familiar schematic format complimented by extensive, user configurable output reporting. Scenario Manager raises the what-if potential of system modeling to a new level. Multiple system configurations varying by any modeling parameter are easily managed within a single model file with a familiar hierarchical interface. Its descendants automatically inherit changes in the base configuration.
Applications
Pipe Sizing:
With real gas modeling under generalized heat transfer conditions, AFT Arrow provides precision you need to accurately size the pipelines. A comprehensive output details the contribution of individual line losses, to the overall system. Visual Report’s color-coding by selected criteria clearly illustrates individual lines in the context of the entire system.
System Operation:
A system’s operating envelope can be fully explored by quickly and easily varying system parameters and configuration. Change the number of compressors in operation, compressor speed, control valve settings, valve positions, fluid properties, and virtually any modeling parameter. An AFT Arrow model provides a realistic and accurate representation of your system’s characteristics allowing testing under a wide variety of conditions long before committing to hardware.
Choked Flow:
Solution capabilities include sonic choking allowing design and analysis of critical flow conditions including flare and relief systems.
Mixing Processes:
With the optional Chempak add-on, pre-defined gas mixtures can be modeled at any point in the system. Mixtures from intersecting flow streams of differing gases are automatically combined in accordance with the flow solution.
Compressor/Fan Selection:
With compressor and fan modeling capabilities including flow vs. pressure, heat of compression, variable speed, controlled discharge pressure and multiple unit series and parallel operation, AFT Arrow facilitates investigating compressor and system interaction over the full range of operation.
System Requirements:
- Windows 95 & higher or NT 4.0 & higher
- 64 MB RAM minimum
- 800 x 600 display minimum
- Stand-alone or network
For more information please visit http://www.aft.com/products/arrow/ |
