Expected performance maps
Predicted curves calculated at the selected off-design inlet conditions.
Workflow
From reference maps to condition-consistent diagnostics
CMap transforms reference performance maps to actual operating conditions, enabling reliable comparison with field measurements.
CMap Workflow
From reference maps to condition-consistent diagnostics
CMap guides the analyst through a structured engineering workflow: configure the compressor, define the actual gas and inlet conditions, calculate the expected off-design maps and compare them with measured field performance.
Structured process
A clear engineering sequence
The workflow is designed to avoid inconsistent comparisons and to create the correct performance baseline before any diagnostic conclusion is made.
1
Configure the compressor reference
Start from OEM datasheet maps or shop performance test curves. CMap uses this reference information to build a compressor model that captures the characteristic behavior of the machine.
2
Define gas and inlet conditions
Set the gas mixture composition, suction pressure and suction temperature for the operating case to be evaluated. These conditions may represent actual field operation or a future forecasted scenario.
3
Transform the performance maps
CMap applies thermodynamic modeling and compressor similarity principles to transform reference maps into expected maps at the selected operating conditions.
4
Compare measured and expected performance
Once the expected baseline is calculated at the same inlet conditions, field measurements can be compared objectively against predicted values.
5
Diagnose, report and decide
Deviations between measured and expected values support troubleshooting, efficiency assessment, maintenance planning, RCA and plant optimization decisions.
Transformation concept
Performance evaluation becomes reliable only after conditions are aligned.
Design or shop-test maps are transformed into the actual operating condition before field measurements are assessed. This is the core logic behind condition-consistent compressor diagnostics.
Outputs
What the workflow delivers
CMap converts operating data and reference maps into information that can be used for technical decisions.
Measured vs expected comparison
Quantitative comparison between field data and the correct predicted baseline.
Deviation analysis
Objective support for diagnostics, troubleshooting and maintenance strategy.
Key message
Measure is not enough. You must compare correctly.
CMap makes compressor performance evaluation consistent by ensuring that expected and measured values are referenced to the same operating conditions.