New in Version 8
Scenario Comparison Tool
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Quickly get a comparison of different scenarios within a model file
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Useful to double-check input results for old models, or for troubleshooting purposes
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For a detailed description see Scenario Comparison Tool Overview
Junction- specific Parameters in Visual Report
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Output such as the compression ratio of a compressor or the Cvof a control valve can now be displayed in theVisual Report
Notes on Output
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Notes can be added to any cells in the Output to save observations and comments directly with the model file
New Workspace Functionality
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Multi-level Undo - Drawing, arranging and moving objects in the Workspace now allows for multiple levels of undo
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Workspace Magnifier - The magnifier tool provides an enlarged view of sections of the model to make it easier to manage and navigate large models
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Automatic Junction Rotation - Arrow will automatically rotate junctions to visually align with neighboring pipes to speed-up model formatting
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Combine Pipes - a series of pipes and junctions can be combined to simplify a model, with any losses being imported to the Pipe Fittings and Losses tab
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Select Shortest Flow Path - The shortest path between two selected junctions can be found using this feature in the Edit menu
Define Compressors in terms of Compression Ratio
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The compression ratio at different flow rates can be directly specified in the Compressor Configuration window
Diagnostics Window
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Provides a list of features and settings which might cause issues as a starting point for model troubleshooting
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See the Diagnostics Window topic for more information
Multi-scenario Compressor/Fan vs. System Curves
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Compressor/Fan vs System curves from different scenarios can be plotted on the same graph within AFT Arrow
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Easily compare changes to compressor/fan operation in different cases
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For more information see Multi-Scenario Compressor/Fan vs. System Curves Tutorial
More Improvements
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Overall Performance
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Improved intelligence on when a model needs to be saved and re-run to preserve the output
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Faster model loading speed
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Improved language refresh speed
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New and updated themes
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Workspace
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The Undefined Objects Panel (launched from clicking "Define Pipes and Junctions" in the Checklist) remains open when pipes/junctions are being edited
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Double-clicking a junction allows more than one of that junction to be placed in the Workspace at a time
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Snapping can be turned off for pipes when the isometric drawing mode is enabled
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Output
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Output parameters can now be filtered/searched for simpler selection
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The average thermal conductivity used for calculations can be displayed in the Output
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Visual Report
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Visual Report Control has been redesigned to better filter parameters
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Pipes
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Heat tracing now allows the entry of power/length and number of turns to allow Arrow to calculate the heat flux directly
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Junctions
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Updated Tee/Wye Properties window which clarifies the input and automatically defines the pipe arrangement according to the direction and orientation on the Workspace
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Built-in K-factors are now included for bends withr/Dbetween 0.5 and 1. SeeBend Loss Model for more information.
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Notes can be globally edited for junctions
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Design Alerts
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Design Alerts can be saved to and loaded from a file to quickly apply common Design Alerts to multiple models
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Ability to import custom Fittings & Losses from a file
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Related Topics
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