Open AccessSimulation the operation of a combined-cycle gas turbine unit with an after burning device in a waste-heat recovery boiler
Author(s) -
Д. И. Менделеев,
George Marin,
Azat Akhmetshin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1661/1/012150
Subject(s) - combined cycle , boiler (water heating) , turbine , parametric statistics , engineering , power station , mathematical model , steam turbine , waste heat recovery unit , process engineering , mechanical engineering , heat exchanger , mathematics , electrical engineering , waste management , statistics
One of the directions in the development of energy is the study and implementation of combined cycle plants. It is possible to solve a wide range of design and operation problems using mathematical models. A steam-gas power unit based on a GE 6FA gas-turbine unit was studied in this work. In this case, we considered a modernized thermal circuit with an afterburner. In this paper, we consider the method of parametric identification of a mathematical model of a gas turbine in a steady state. The steady-state is taken equal to 80 MW. The difficulty of creating mathematical models of combined-cycle power units is the organization of the computational process. Schematically, the structure of a mathematical model can be represented as a hierarchical set of software modules. The upper-level modules, based on the input data, organize a computational process that includes the organization of calls in the required sequence to the lower level modules in order to form a system of equations that determine the conditions for the combined operation of a combined cycle gas turbine unit. Dependences of changes in the main energy characteristics of a combined cycle plant are shown. Studies have shown the feasibility of using afterburning devices in the cycle of a combined cycle plant.