Interactive demonstration
Performance in context.
Change the conditions. Compare the expected performance with a simulated measurement. Follow the evidence through Cassandra’s workflow.
Synthetic chiller example. Outputs illustrate a performance reference, with equipment-specific diagnostics evaluated separately.
Operating conditions
This control increases electricity use while useful output stays the same. The change develops over the final seven synthetic days.
Expected and measured EER
Review deviationElectricity for the same useful output
— kWh useful cooling—
Follow the reasoning
Select a step or play the walkthrough.
Observe the conditions
—
—
What this demonstration shows
Reference values were generated by Cassandra’s experimental reference model fitted to synthetic examples. The browser interpolates those precomputed outputs. Simulated measurements and daily variations are illustrative. This page runs locally in your browser and sends no measurements to Cassandra.
Alarms use a threshold calibrated on the synthetic reference data. A deviation is a reason to investigate. The heating example demonstrates heat-pump energy accounting and reference comparison; HET-B1 equipment diagnostics remain under development.
How to read the energy comparison
The reference and simulated measurements use the same useful energy and the same 12-hour period. Electricity equals useful energy divided by EER or COP. If efficiency decreases by 20%, electricity increases by 25% for the same useful output.
The reference estimates current performance from operating conditions. The graph compares synthetic days; it does not forecast the date of a machine fault.