Tengra Nuclear · KASK
Thermal-hydraulic analysis that makes safety margins in the reactor core visible
KASK examines the highest-power fuel channel and fuel assemblies in the reactor core, and calculates temperatures and the safety margin to critical heat flux in normal operation and accident scenarios.
🏆 TEKNOFEST 2026 · Nuclear Energy Technologies Design Competition · First Place, Software Development Category
Product video
See KASK in one minute.
Highlights
1st
TEKNOFEST 2026 Software Development Category
Hacettepe University
Academic pilot use
Built-in scenarios
Accident and transient scenarios
Large reactors to SMRs
Built-in reactor templates
What it does
Hot-channel analysis
Calculates coolant, cladding and fuel temperatures along the most limiting fuel rod and shows them on one chart.
Subchannel-based hot-assembly DNBR screening
Selects the highest-power fuel assemblies from the core's radial power distribution, resolves them into subchannels, and shows where the lowest safety margin to critical heat flux occurs.
Accident and transient scenarios
Follows how scenarios such as loss of flow, loss of coolant, loss of feedwater, rod ejection and power ramps evolve over time.
Clear reporting
Turkish and English interface; Windows, macOS and Linux. Results and study conditions are exported together as PDF, Excel and CSV.
Journey
Start
Started as a single-channel thermal-hydraulic solver
Sep–Oct 2026
First place at TEKNOFEST 2026
Today
Subchannel-based hot-assembly screening, accident scenarios, pilot use at Hacettepe University
Next
Industry pilot users, and expansion into fuel performance with YULA
Product screens
Study setup.
Pick a reactor template, enter operating conditions, run.
Axial temperatures.
Coolant, cladding and fuel temperatures on one chart.
Hot-assembly selection.
The highest-power assemblies on the core map.
Accident scenario.
How temperature and margin change through the scenario.
Report.
Results and study conditions in one PDF.