Performance analysis technology of gas turbine combined cycle
system composed of various components such as gas turbine (GT),
heat recovery system generator (HRSG), and steam turbine (ST)
using a physics-based model

Application fields of the performance analysis technology using
a physics-based model : 1) performance design, performance
acceptance test, and performance diagnosis of conventional power
generation system, 2) Development of advanced power generation
system such as integrated gasification combined cycle, gas turbinefuel
cell hybrid system

 

Client / Market

• Gas turbine manufacturers
• Engineering companies for energy systems
• Electric power companies with gas turbine combined cycle

 

Necessity of this Technology

• Combined cycle gas turbine performance design aspect: In the performance design
  of gas turbine for combined cycle, gas turbine performance design considered the
  performance characteristics of the bottoming cycle is required to maximize the
  efficiency of the combined cycle.
• Gas turbine combined cycle power plant performance acceptance test aspect: In the
  performance acceptance test of gas turbine combined cycle power plant, correction
  curves of the combined cycle power plant derived by combining the design
  specifications of components is required, and the curves are utilized to examines
  whether the completed gas turbine combined cycle power plant is able to fulfill the
  performance in the contract.
• Gas turbine combined cycle power plant performance diagnosis aspect: In the
  performance diagnosis of gas turbine combined cycle power plant, the analysis for
  the degree of degradation and the cause of deterioration were required to predict
  the appropriate maintenance schedule because the performance of gas turbine
  degrade with increase in operation time.

 

Technical Differentiation

• Performance design of gas turbine for combined cycle
  - Estimation of realistic gas turbine performance specifications by utilizing the regression analysis
  model obtained through analyzing data from existing gas turbine, and physics-based mode
  l- Prediction of design performance specifications of gas turbine for combined cycle by
  simulation of gas turbine system with bottoming cycle using the physics-based model
• Performance acceptance test of correction curve for gas turbine combined cycle
  power plant
  - Accuracy improvement of correction curves of combined cycle by utilizing the modelbased
  simulation of overall combined cycle power plant as well as combination
  correction curves of each component provide by manufacturer’s
  - Prediction of the correction curves of combined cycle power plant with inlet chiller and
  duct firing
• Diagnosis of gas turbine combined cycle power plant performance
  - More accurate quantitative analysis of performance degradation using physics-based
  model than that of using data analysis
  

 

Excellence of Technology

 

Current Intellectual Property Right Status

KNOW-HOW

• Performance design of gas turbine for combined cycle power plant
• The prediction of correction curves of combined cycle power plant
• The performance diagnosis of gas turbine
• Analysis of advance gas turbine-based energy system