The Workspace

The whole tool is one screen. Nothing is hidden behind navigation, and there are no projects or folders to manage. This page names every part of it.

The Toolbar

The toolbar runs across the top and holds everything that acts on the case as a whole.

The PRV-Sizing toolbar with simulation time, Run, Save and Load, Export, Ask AI, Feedback, Help, and the account avatar
Everything that acts on the whole case lives in the toolbar.
ControlWhat it does
Simulation Time (s)How long to simulate, from 1 to 600 s. Set automatically to the venting curve length plus 10 s, until you edit it yourself
RunSolves the case. Disabled, with a tooltip explaining why, until every required input is present
Save / LoadDownloads or restores a .json file holding all of your inputs
ExportDownloads results as CSV or as a PDF report. Disabled until a solve has produced results
Ask AIOpens the assistant panel, on plans that include it
FeedbackSends us a comment about the tool
HelpOpens this documentation
AvatarAccount menu: profile, usage, billing, sign out

Why Run Is Sometimes Disabled

Hover the button and the tooltip names the missing piece. There are only a few possibilities, all of them about inputs the solver cannot proceed without:

  • the built-in databases are still loading, or failed to load
  • no cell has been selected from the database
  • no valve has been selected from the database
  • a required CSV has not been uploaded, or did not parse

Each is covered in Troubleshooting.

The Three Columns

Input Parameters (Left)

Everything that describes the case, in four groups: Battery Pack Geometry, Working Conditions, Cell Venting Data, and Pressure Relief Valve Characteristic. Fields with an information icon beside the label carry a short explanation, including the expected format for every CSV upload.

Drag the divider on its right edge to resize the column. Click the divider, without dragging, to collapse the column entirely and give the charts the full width. Click again to bring it back. The tool remembers both the width and the collapsed state.

Results Visualization (Centre)

Three tabs, all showing the same solved data in different arrangements:

TabLayout
Single ChartOne quantity, chosen from the dropdown beside the tabs: Pressure, Temperature, Gas Mole, or Valve Flow and Status
Four GridAll four in a two by two grid
Vertical StackAll four stacked on a shared time axis
The chart tab row with Single Chart, Four Grid and Vertical Stack, and the chart type dropdown open showing Pressure, Temperature, Gas Mole, and Valve Flow and Status
The type dropdown appears beside the tabs only while Single Chart is active.

The tabs are disabled until a solve produces results.

Every chart is interactive. Drag to zoom into a region, double click to reset, and use the toolbar that appears when you hover over a chart to pan, autoscale, or save the chart as a PNG.

Charts are drawn from a reduced set of points, chosen to preserve the shape of the curve, so the browser stays responsive. If you need every point the solver produced, export the CSV, which is always full resolution. See Exporting Results.

Key Results (Right)

The verdict strip at the top says Pressure Within Limit or Pressure Exceeds Limit, comparing the relative peak pressure against your Max Pressure Limit. Below it are the four headline metrics, and below those a Solver Info block with the returned point count and the solve time.

Full explanations of every metric are in Reading the Results.

The Messages Console

Underneath the charts, collapsible, with a count badge. It logs every significant event with a timestamp: database loading, solves starting and finishing, exports, warnings, and errors. Newest entries appear at the bottom.

The messages console listing database loading, the simulation starting, and the solve completing, each with a timestamp
Every significant event is logged with a timestamp, newest at the bottom.

When something does not behave as you expect, read this first. It usually already says why.

How Results Go Stale

Change any input that affects the physics and the tool clears the results and posts Input parameters changed. Please run simulation again. in the console. This is deliberate. Charts that no longer correspond to the fields on screen are worse than no charts at all.

Two fields are exempt, because they do not change the simulation:

  • Max Pressure Limit, which only moves the pass or fail threshold
  • unit selectors, which only change how a value is displayed

Loading a saved configuration also clears results, without the warning, since you asked for a wholesale change.

Re-running an Unchanged Case

If you press Run when results are already on screen and nothing has changed, the tool asks you to confirm. Since results are only kept while the inputs that produced them are untouched, an unchanged case would return an identical answer and spend another run from your quota. Confirming proceeds anyway.

Leaving the Page

Inputs and results live in the browser tab and nowhere else. If you try to close or reload the tab with unsaved results on screen, the browser asks you to confirm. There is no server copy to recover, by design. See Saving and Loading a Setup.