TECHNOLOGIES - power plant performance

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Gas Turbines

Gas Turbines

Gas Turbine Performance

TGPS has conducted several dozens of gas turbine performance test around the world. Our thermal performance engineers has experience gas turbine efficiency of different OEMs such as GE, Alstom, Pratt & Whitney, Ansaldo, Siemens, Rolls Royce and Mitsubishi, among others. The purpose of the gas turbine performance test can vary, from contractual reasons to diagnostic purposes, such as understanding changes in the gas turbine heat rate.

Our performance testing company strictly follows the ASME PTC 22, ISO and DIN test protocols. These protocols are universally accepted as methods to measure the gas turbine heat rate and/or gas turbine output in a reliable manner.

Our experience involves different models of gas turbines, from 30 year old frame 5 units to the latest H-Class gas turbines. Our team of gas turbine performance engineers is ready to work in projects around the world. TGPS holds a large amount of precision testing instrumentation to evaluate the gas turbine performance. These instruments are used to reduced the performance testing uncertainty of the gas turbine heat rate or gas turbine output results.

Gas Turbine Heat Rate

Probably the most important parameter in a gas turbine is the gas turbine heat rate, which is a relationship of fuel consumption and electricity production. In general terms the gas turbine heat rate is the inverse of the gas turbine efficiency. The most efficient gas turbines at the moment are the H-technology which in a combined cycle application, they can reach over 60% of plant efficiency.

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Performance Test Procedure

For a gas turbine performance test, there are certain specific items to place special attention in the gas turbine performance test procedure.

  • Gas Turbine Control Settings
  • Test Boundaries Definition
  • Gas Turbine Heat Rate & Power Output
  • Testing Instrumentation
  • Calculation of final Gas Turbine Performance Results

TGPS has a diverse range of experiences with different OEMs in several countries around the world.


Depending on the objective of testing certain parameters are more critical than others. Only an experience power plant performance engineer can guide the process through the most efficient path to achieve the specific objectives. For a contractual performance test topics such as test uncertainty, performance guarantees are more relevant. In a diagnostic test, not only these parameters are important, but also looking to historical trends, power plant upgrades, operation modes, load cycling, among others. Our team uses the latest tools to diagnostic the gas turbine performance in an accurate and practical way.

Results that can impact directly the gas turbine efficiency.

Why is Power Plant Efficiency Important?

Power Plant Efficiency is directly correlated to the business sustainability in terms of financial performance and long-term feasibility.

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