EMA

How much improvement is possible, and how can it be achieved?

EMA stands for Exergetic Modeling and Analysis, built on a proprietary methodology to answer these two core questions. It links exergy with economics and introduces NED, the Normalized Exergy Diagram.

This novel NED provides a consistent framework to visualize performance data for any operating condition in an identical chart layout, making complex thermodynamic behavior intuitively accessible.

Within a single diagram, NED captures:

• Limiting and special reference cases

• Unique correlations

• Operation paths

• Characteristics

• Degradation behavior

• Economic effects

Instead of juggling multiple 2D or even 3D plots, users work with one concise diagram that supports serial and parallel superposition of NEDs, shows overall performance at a glance, and reveals trends and optimization potential clearly over time.

Variation of Performance

VoP is directly derived from NED and covers every change of performance regardless of circumstances.

Advantages

• General asset-independent formulation

• Single, compatible, stackable measure

• Direct impact on asset and system

• Classification for good, bad, recoverable, non-recoverable, adjustable, fixed

• Covers degradation, HW-, operation-, control-, and process modifications, reserves, gaps

• Visualization in NED

Operation Path and Characteristics

The operation path connects sequential operating points in the NED, revealing performance evolution across variable load, control settings, or degradation states.

Characteristics emerge naturally from NED's unique correlations with the Variation of Performance. Eight fundamental characteristics define thermodynamically optimal reference paths, providing clear operational guidance for performance improvements.