Session: 07-02 Educational tools

Paper Number: 128892

128892 - Gas Turbine Design Point Definition Using Economics, Environmental and Optimization Aspects 

This work aims to provide a methodology for defining the design point for an industrial gas turbine, considering the economic, environmental, and engine performance aspects. The definition of design point is a key step in the development project of a gas turbine since this definition involves the analysis of several operational points to verify if the desired performance can be obtained. Thus, to extend the methodology presented in the literature developed for micro-turbines to consider industrial turbines, a computer program was developed in MATLAB®. This program is capable of performing thermodynamic calculations for design point definition and of performing single- and multi-objective thermoeconomic and thermodynamic optimizations using genetic algorithms. For the optimization process, total cost minimization, yield maximization, and gas turbine-specific work maximization were chosen as objective functions. The decision variables chosen were compressor pressure ratio, compressor polytropic efficiency, turbine polytropic efficiency, and maximum cycle temperature. For the calculation of economic aspects, fixed costs (equipment, installations, land acquisition cost, etc.) and variable costs (fuel, emissions, and operation and maintenance costs) were considered. The emission cost of NOx, CO, and UHC was considered for the environmental cost calculations. The thermodynamic calculations were based on enthalpy and entropy. The developed computer program was validated by simulating a commercial gas turbine and comparing the results obtained, also using a commercial program, GASTURB®. The presented optimization process shows results for a single objective, two objectives, and three objectives, where the results show a comparison between different design points obtained. This program will be of great assistance in the learning of engineering students.

Presenting Author: Cleverson Bringhenti Aeronautics Institute of Technology

Presenting Author Biography: Cleverson is graduated in Bachelor of Physics at the State University of Ponta Grossa (UEPG - PR) in 1996, received the title of Master in Aeronautical and Mechanical Engineering from the Aeronautics Institute of Technology (ITA) in 1999, the title of Doctor in Aeronautical Engineering and Mechanic from the Aeronautics Institute of Technology (ITA) in 2003, he did a postdoctoral degree at the Aeronautics Institute of Technology (ITA) from 2003 to 2008 and received a degree in Mechanical Industrial Engineering, Professor Everardo Passos Technical School, ETEP, in 2010. Cleverson worked at Brazilian Aeronautical Company, EMBRAER, from 2008 to 2009 in the area of Market Intelligence. Since 2009 he has been Professor at the Turbomachines Department at the Aeronautics Institute of Technology (ITA). He is currently Associate Professor III, Deputy Head of the Mechanical Engineering Division, Head of the Turbomachinery Department, Area Representative (Aerospace Propulsion and Energy), Coordinator of the CAPES-Print Project (Propulsion) and the UNESCO UNITWIN Network: Innovative, Sustainable and Clean Energy Research and Education. He has experience in the area of Mechanical-Aeronautical and Aerospace Engineering with emphasis on Gas Turbines, Combined Cycle (Thermal Power Plants), Piston Engine and Propulsion, working mainly on the following topics: numerical simulation, development of computational codes for component performance analysis and the engine as a whole; gas turbines and their components; aeronautical propulsion, turbomachinery, combined cycle; configurations of cycles and components that make up each system; performance deterioration of gas turbines; gas turbine applications; flow machines; turbo-pumps for liquid-propelled rocket engines, inductors. He is a reviewer for the Support and Research Foundation of the State of São Paulo (FAPESP), member of international committees (ASME-IGTI), coordinates and participates in research and development projects with companies in the areas of Defense, Oil and Gas, generation of electrical energy and aeronautics.

Authors:

Carlos Henrique De Paiva Pinheiro GE
Cleverson Bringhenti Aeronautics Institute of Technology
Jesuino Takachi Tomita Aeronautics Institute of Technology
Franco Jefferds Dos Santos Silva Aeronautics Institute of Technology
Alexandre Roma Aero Concepts
Mayara Lopes Salgado Aeronautics Institute of Technology