Where rotary equipment typically runs continuously, during scheduled maintenance, our technicians are able to improve compressor design and performance without further service interruption. In order to achieve our goal, a three-dimensional model and the latest software are used to produce a performance diagram for the compressor, and then the data generated from this model is compared with the actual data of the compressor itself. In this way, the model can be modified to ensure the correct use of working parameters.

Once the model is confirmed to be correct, improvements can be made to the design of the impellers, labyrinth seals, coolers, bearings and the shaft itself. Each design change is simulated and evaluated in order to compare the performance of alternative designs.

Most industrial gas turbine manufacturers currently use Equivalent Operating Hours (EOH) as a basis for determining the remaining lifetime of gas turbine rotors. The lifetime for a typical rotor is from 100,000 to 150,000 EOH. With a timely inspection of rotor parts, it is usually possible to achieve a single extension of about 50,000 to 100,000 EOH.
Engineering and technical services including lateral and torsional rotor dynamic analysis, finite element analysis, and modal analysis metallurgical analysis and testing services performed in our state-of the-art laboratories.

The overall thermal efficiency of the engine is tried to be optimized by adjusting the compressor efficiency, turbine efficiency, compression pressure ratio, and turbine inlet temperatures. A feasible solution should satisfy two physical constraints, namely a desired gas turbine power and a suitable limit of engine exhaust temperature. In this regard an evolutionary model using Simulated Annealing algorithm is developed to find the sets of optimal solutions.

The rapid advances in technology of control systems precipitated by the development of microprocessors has made retrofit of older type controls an attractive alternative for many gas turbine owners. High reliability, enhanced operator interface, and optimized maintenance planning are some of the tangible benefits that can accrue from these retrofits.