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Title: Promising Direction of Perfection of the Utilization Combine Cycle Gas Turbine Units
Authors: Gabdullina, Albina Ilgizovna
Galashov, Nikolay Nikitovich
Tsibulskii (Tsibulskiy), Svyatoslav Anatolievich
Melnikov, Denis Vladimirovich
Asanov, Ilya
Kiselev, Aleksandr Dmitrievich
Keywords: перспективные направления; утилизация; турбогенераторы; газовые турбины; газотурбинные установки; воздушное охлаждение; паровые котлы; дымовые газы; электроэнергия; паровые турбины; эффективность
Issue Date: 2017
Publisher: EDP Sciences
Citation: Promising Direction of Perfection of the Utilization Combine Cycle Gas Turbine Units / A. I. Gabdullina [et al.] // MATEC Web of Conferences. — 2017. — Vol. 91 : Smart Grids 2017 : The Fourth International Youth Forum, October 10-14, 2016, Tomsk, Russia : [proceedings]. — [01004, 5 p.].
Abstract: Issues of improving the efficiency of combined cycle gas turbines (CCGT) recovery type have been presented. Efficiency gas turbine plant reaches values of 45 % due to rise in temperature to a gas turbine to 1700 °C. Modern technologies for improving the cooling gas turbine components and reducing the excess air ratio leads to a further increase of the efficiency by 1-2 %. Based on research conducted at the Tomsk Polytechnic University, it shows that the CCGT efficiency can be increased by 2-3 % in the winter time due to the use of organic Rankine cycle, low-boiling substances, and air-cooled condensers (ACC). It is necessary to apply the waste heat recovery with condensation of water vapor from the flue gas, it will enhance the efficiency of the CCGT by 2-3 % to increase the efficiency of the heat recovery steam boiler (HRSB) to 10-12 %. Replacing electric pumps gas turbine engine (GTE) helps to reduce electricity consumption for auxiliary needs CCGT by 0.5-1.5 %. At the same time the heat of flue gas turbine engine may be useful used in HRSB, thus will increase the capacity and efficiency of the steam turbine.
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