Strip File Creator
ASYST/RELAP/SCDAPSIM Data Extraction Tool
Simplify Strip File Creation
Creating strip files for RELAP/SCDAPSIM and ASYST no longer has to be manual or error-prone. Strip File Creator streamlines the process by analyzing input decks and generating properly formatted strip files through an intuitive graphical interface.
Works with RELAP/SCDAPSIM and ASYST input deck files (.i)
Save Time
Reduce strip file creation time from hours to minutes with intelligent automation.
Error Prevention
Eliminate manual parameter formatting errors with auto-generated parameters.
Consistency
Ensure standardized variable extraction across your entire analysis team.
Powerful Features for Engineers
Everything you need to create professional strip files from RELAP/SCDAPSIM and ASYST input decks
Intelligent Input Deck Parsing
- Reads input deck files (.i), plus the matching output file (.o) when volume and junction numbers are needed
- Automatic component detection and cataloging
- Pipes, branches, annuli, pumps, valves, accumulators, turbines, separators, single and time-dependent volumes and junctions
- Heat structures with full mesh information
- SCDAP severe accident components (fuel rods, control rods, debris)
Comprehensive Variable Database
- 231 built-in quantities across 18 categories
- General quantities (time, mass error, system totals)
- Volume quantities (pressure, temperature, void fraction)
- Junction quantities (flow rates, velocities, choking)
- SCDAP quantities (oxidation, hydrogen, fuel melting, debris)
- Each quantity carries the parameter format the code expects
Dynamic SCDAP Parameter Generation
Intelligent parameter generation system that automatically adapts to the selected variable type:
- Core general quantities (automatic handling)
- Component quantities with simple selection
- Axial-dependent quantities (component + node)
- Temperature quantities (radial, axial, component)
- Heat structure identifiers with mesh point and surface selection
-
Node ranges accepted as
1-8,1,3,5orall
Sweep whole node ranges in one click. A fuel temperature sweep across 2 components × 8 axial × 4 radial nodes is 64 correctly formatted variable requests from a single click.
Flexible Output Options
CSV Format
Comma-separated output for easy import into Excel, MATLAB, or Python
FMTOUT Format
Traditional RELAP/SCDAPSIM formatted output for legacy workflows
Automatic Naming
Smart filename generation prevents accidental overwrites
Checked Before You Run
Every request is validated against the parameter format its quantity declares and against the model you loaded — so mistakes surface in seconds instead of after a simulation completes:
- Components and nodes that are not in your deck
- Node numbers outside the range a component defines
- Malformed volume, junction and heat structure numbers
- Duplicate requests, detected and skipped automatically
Review and Reuse
Live File Preview
See exactly what will be written before you write it
Editable Variable Table
Edit any parameter or comment in place, reorder or duplicate rows, with full undo
Saved Selection Sets
Reuse a variable list on another model; anything that does not fit the new deck is reported
Instant Filtering
Filter components and quantities as you type, across hundreds of entries
Simple, Organized Workflow
Six easy steps from input deck to strip file
Load Input Deck
Select your RELAP/SCDAPSIM or ASYST input deck file (.i)
Select Category
Choose component category
Choose Components
Pick specific components and quantities
Auto-Generate
Parameters built for you, ranges expanded in one step
Add Variables
Build your strip file list
Preview & Create
Check the preview, then generate with a single click
Real-World Applications
Reactor Safety Analysis
Load RELAP/SCDAPSIM or ASYST input decks to extract key safety parameters: core temperature profiles, system pressure and flow rates, containment response, and emergency cooling system performance.
Severe Accident Modeling
Parse RELAP/SCDAPSIM or ASYST input decks to analyze damage progression: cladding oxidation, hydrogen generation rates, fuel melting and relocation, debris bed formation, and lower plenum thermal response.
Design Optimization
Track component performance across parametric studies: pump and valve operating points, heat exchanger effectiveness, system thermal efficiency, and flow distribution analysis.
Post-Processing Automation
Create standardized strip files for automated report generation, time series plotting, comparative analysis across multiple runs, and uncertainty quantification studies.
Technical Specifications
Designed specifically for RELAP/SCDAPSIM and ASYST workflows
Platform
Cross-platform (Windows, macOS, Linux)
Technology
Single standalone executable — no Python installation, no dependencies, no administrator rights
Input Format
RELAP/SCDAPSIM and ASYST input deck files (.i), plus the matching output file (.o) when volume and junction numbers are needed
Capacity
Up to 999 variable requests per strip file (cards 1001–1999)
Output Format
Strip files (.i) for extracting data from restart files
System Requirements
Minimal requirements for maximum accessibility
- OS: Windows 10/11 or macOS (runs from source on Linux)
- Memory: 256 MB RAM minimum
- Display: 1280x800 or higher recommended
- Storage: ~100 MB disk space
- Required Software: RELAP/SCDAPSIM or ASYST (for running the generated strip files)
Bundle & Save!
Get both Strip File Creator and Restart File Creator together
Strip File Creator
$29.99
Restart File Creator
$29.99
Regular Price: $59.98
Bundle Price: $49.99
Save $9.99!
Perpetual License • Lifetime Updates
Ready to Streamline Your Workflow?
Get Strip File Creator today and start saving hours on every RELAP/SCDAPSIM and ASYST analysis project.
$29.99
One-time purchase • Lifetime access
Have questions? Contact our team
References & Resources
Strip File Creator works with RELAP5/SCDAPSIM output data used in nuclear safety analysis regulated by the U.S. Nuclear Regulatory Commission (NRC). The underlying simulation codes were originally developed at Idaho National Laboratory (INL).