New in Version 8

Scenario Comparison Tool

  • Quickly get a comparison of different scenarios within a model file

  • Useful to double-check input results for old models, or for troubleshooting purposes

  • For a detailed description see Scenario Comparison Tool Overview 

The Scenario Comparison Grid is shown as it is a new feature in AFT Arrow Version 8.

Junction- specific Parameters in Visual Report

  • Output such as the compression ratio of a compressor or the Cvof a control valve can now be displayed in theVisual Report

An Arrow model with the Compression Ratio shown in visual report is shown, as it is a new feature in AFT Arrow Version 8.

Notes on Output

  • Notes can be added to any cells in the Output to save observations and comments directly with the model file

A Note displayed on the Output window is shown; a new feature in AFT Arrow Version 8.

New Workspace Functionality

  • Multi-level Undo - Drawing, arranging and moving objects in the Workspace now allows for multiple levels of undo

  • Workspace Magnifier - The magnifier tool provides an enlarged view of sections of the model to make it easier to manage and navigate large models

The Workspace Magnifier is shown on a complex network. This is a new feature in AFT Arrow Version 8.

  • Automatic Junction Rotation - Arrow will automatically rotate junctions to visually align with neighboring pipes to speed-up model formatting

  • 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 

  • 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

The Compression Ratio at different flowrates can be specified in the Compressor Configuration window which is a new feature in AFT Arrow Version 8.

Diagnostics Window

  • Provides a list of features and settings which might cause issues as a starting point for model troubleshooting

  • See the Diagnostics Window topic for more information

Multi-scenario Compressor/Fan vs. System Curves

More Improvements

  • Overall Performance

    • Improved intelligence on when a model needs to be saved and re-run to preserve the output

    • Faster model loading speed

    • Improved language refresh speed

    • New and updated themes

  • Workspace

    • The Undefined Objects Panel (launched from clicking "Define Pipes and Junctions" in the Checklist) remains open when pipes/junctions are being edited

    • Double-clicking a junction allows more than one of that junction to be placed in the Workspace at a time

    • Snapping can be turned off for pipes when the isometric drawing mode is enabled

  • Output

    • Output parameters can now be filtered/searched for simpler selection

    • The average thermal conductivity used for calculations can be displayed in the Output

  • Visual Report

  • Pipes

    • Heat tracing now allows the entry of power/length and number of turns to allow Arrow to calculate the heat flux directly

  • Junctions

    • Updated Tee/Wye Properties window which clarifies the input and automatically defines the pipe arrangement according to the direction and orientation on the Workspace

    • Built-in K-factors are now included for bends withr/Dbetween 0.5 and 1. SeeBend Loss Model for more information.

    • Notes can be globally edited for junctions

  • Design Alerts

Related Blogs

New Feature Highlight - Scenario Comparison Tool