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Flexible operation of combined cycle gas turbine power plants with supplementary firing

Encabo Cáceres I., Montañés R. M., Nord L. O.

Journal of Power Technologies

2018

Vol. 98, nr 2

188--197

This article covers the use of supplementary firing in a gas-combined cycle power plant when high flexibility is required depending on the penetration of variable renewable energies and under different gas turbine loads. Process models were simulated under different operating conditions with the software EBSILON® Professional. Five main conditions were studied for the designed combined cycle: gas turbine part-load without supplementary firing, gas turbine full load with supplementary firing, the use of supplementary firing to overcome the effect of changing ambient conditions, part-load gas turbine performance with supplementary firing technology and the use of supplementary firing in case of gas turbine shutdown.

Modeling a membrane reactor for a zero-emission combined cycle power plant

Kotowicz J., Job M.

Journal of Power Technologies

2017

Vol. 97, nr 1

7--14

A zero emission gas turbine power plant with a membrane reactor works on the concept of using ion oxygen transport membrane (ITM) technology in order to apply carbon dioxide capture with limited loss of electricity generation efficiency. The membrane reactor replaces the combustor in the gas turbine and combines three functions: oxygen separation from air through a high-temperature membrane, fuel combustion in the internal reactor cycle, and heating oxygen-depleted air, which is directed to the turbine. This paper presents a gas turbine power plant integrated with a membrane reactor and a detailed description of the membrane reactor model. Selected results of thermodynamic analysis of the modeled power plant are presented.

Mathematical model of Combined Heat and Power Plant using GateCycleTM software

Kowalczyk C., Rolf R. M., Kowalczyk B., Badyda K.

Journal of Power Technologies

2015

Vol. 95, nr 3

183--191

The this paper contains a description and analysis of a mathematical model of the combined cycle gas turbine used by Lublin–Wrotków Combined Heat and Power Plant. The model was generated with the GE Energy Gate Cycle TM software and was based on the parametric design of the real power plant. A brief description of the technology used in the power plant is included in this work. The model was validated by comparing the generated results with the parametric design. The paper finishes with an analysis of the work of the District Water Heater and summary of the most important findings.

The influence of CO2 capture and compression on the economic characteristics of a combined cycle power plant

Kotowicz J., Brzęczek M.

Journal of Power Technologies

2013

Vol. 93, nr 5

314--322

This paper presents the results of an economic analysis of a triple-pressure combined cycle power plant with the steam reheater (3PR). The economic analysis was performed for two variants of the block - with and without the integration of the system with the installation of CO2 capture and compression. The structures of the triple-pressure combined cycle power plant with the steam reheater and CO2 capture and compression installation (CCS) was presented. The characteristic values of systems and the economic assumptions were summarized. An analysis of a break-even point (BEP), which was the minimum selling price for electricity, was performed. A sensitivity analysis of individual components to a break-even price of electricity and the impact of degradation of the efficiency and the power characteristics of the combined cycle power plant was conducted.