Gas Turbine Engine Performance Analysis

EPro+ performs advanced Gas Turbine Modelling, energy balance evaluations, and Gas Turbine Performance Analysis to benchmark turbine performance and identify optimization opportunities. Because Gas Turbine Firing Temperature cannot be measured directly, the control system relies on a derived formula that is vulnerable to drift over time, commissioning errors, instrument error, and OEM conservatism.

Office-based evaluations are performed without any site mobilization: your plant staff perform site activities and data collection under our remote guidance, using your existing calibrated plant instrumentation. No additional test instrumentation is affixed to the unit.

Turbine inlet temperature hot gas path evaluations

Turbine inlet temperature evaluation at up to three measurement points across differing power modes (dry, wet, inlet conditioning such as evaporative cooling, wet compression, inlet chilling, or heating), including both high-pressure and low-pressure turbine inlet temperatures as applicable on sequential combustion engines. Identifies over-firing, which erodes hot gas path component life, and under-firing, which leaves capacity and heat rate unrecovered.

Compressor mass flow analysis

Gas turbine engine compressor inlet mass flow is evaluated against expected values for your unit’s ambient conditions and configuration, often revealing flow-related issues such as guide vane miscalibration, fouling, or increased clearances that temperature data alone cannot explain.

Compressor efficiency evaluation

Compressor efficiency and power draw evaluated on both an isentropic and polytropic basis, distinguishing recoverable losses (fouling, filters) from non-recoverable degradation (clearances, hardware), and providing an evidence base for wash and filter-change scheduling.

HP and LP turbine efficiency evaluations

High-pressure and low-pressure turbine efficiencies evaluated isentropically and polytropically, isolating where in the machine performance is being lost, complemented by exhaust temperature spread analysis as a combustor and turbine health indicator.

Gas Turbine Heat Balance & Thermal Loss Calculations

Full accounting of mechanical, generator, and external heat losses, including once-through cooler (OTC) heat balances on sequential combustion engines, verified independently from both the air and water sides.

Data validation is a core strength of EPro+. Engine-specific checks and balances are built directly into the tool: every input is screened against historical data, similar-build units, and original design parameters; cooling air flows are compared with expected values; and fuel mass flow is independently verified through the mass balance, so anomalies in field data are flagged and resolved before they can distort results.