Research and Development of Trinary Power Cycles
The most effective and environmentally safe fossil fuel power production facilities are the combined cycle gas turbine (CCGT) ones. Electric efficiency of advanced facilities is up to 58% in Russia and up to 64% abroad. The further improvement of thermal efficiency by increase of the gas turbine inl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Inventions |
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| Online Access: | https://www.mdpi.com/2411-5134/7/3/56 |
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| author | Vladimir Kindra Nikolay Rogalev Sergey Osipov Olga Zlyvko Vladimir Naumov |
| author_facet | Vladimir Kindra Nikolay Rogalev Sergey Osipov Olga Zlyvko Vladimir Naumov |
| author_sort | Vladimir Kindra |
| collection | DOAJ |
| description | The most effective and environmentally safe fossil fuel power production facilities are the combined cycle gas turbine (CCGT) ones. Electric efficiency of advanced facilities is up to 58% in Russia and up to 64% abroad. The further improvement of thermal efficiency by increase of the gas turbine inlet temperature (TIT) is limited by performance of heat resistance alloys that are used for the hot gas path components and the cooling system efficiency. An alternative method for the CCGT efficiency improvement is utilization of low potential heat of the heat recovery steam generator (HRSG) exhaust gas in an additional cycle operating on a low-boiling heat carrier. This paper describes a thermodynamic analysis of the transition from binary cycles to trinary ones by integration of the organic Rankine cycle (ORC). A mathematical model of a cooled gas turbine plant (GT) has been developed to carry out calculations of high-temperature energy complexes. Based on the results of mathematical modeling, recommendations were made for the choice of the structure and parameters of the steam turbine cycle, as well as the ORC, to ensure the achievement of the maximum thermal efficiency of trinary plants. It is shown that the transition from a single pressure CCGT to a trinary plant allows the electric power increase from 213.4 MW to 222.7 MW and the net efficiency increase of 2.14%. The trinary power facility has 0.45% higher efficiency than the dual pressure CCGT. |
| first_indexed | 2024-03-09T23:37:48Z |
| format | Article |
| id | doaj.art-39465c65be8e4dfdb59db1b65798c9e2 |
| institution | Directory Open Access Journal |
| issn | 2411-5134 |
| language | English |
| last_indexed | 2024-03-09T23:37:48Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inventions |
| spelling | doaj.art-39465c65be8e4dfdb59db1b65798c9e22023-11-23T16:56:25ZengMDPI AGInventions2411-51342022-07-01735610.3390/inventions7030056Research and Development of Trinary Power CyclesVladimir Kindra0Nikolay Rogalev1Sergey Osipov2Olga Zlyvko3Vladimir Naumov4Department of Innovative Technologies of High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, RussiaDepartment of Thermal Power Plants, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, RussiaDepartment of Innovative Technologies of High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, RussiaDepartment of Innovative Technologies of High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, RussiaDepartment of Innovative Technologies of High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, RussiaThe most effective and environmentally safe fossil fuel power production facilities are the combined cycle gas turbine (CCGT) ones. Electric efficiency of advanced facilities is up to 58% in Russia and up to 64% abroad. The further improvement of thermal efficiency by increase of the gas turbine inlet temperature (TIT) is limited by performance of heat resistance alloys that are used for the hot gas path components and the cooling system efficiency. An alternative method for the CCGT efficiency improvement is utilization of low potential heat of the heat recovery steam generator (HRSG) exhaust gas in an additional cycle operating on a low-boiling heat carrier. This paper describes a thermodynamic analysis of the transition from binary cycles to trinary ones by integration of the organic Rankine cycle (ORC). A mathematical model of a cooled gas turbine plant (GT) has been developed to carry out calculations of high-temperature energy complexes. Based on the results of mathematical modeling, recommendations were made for the choice of the structure and parameters of the steam turbine cycle, as well as the ORC, to ensure the achievement of the maximum thermal efficiency of trinary plants. It is shown that the transition from a single pressure CCGT to a trinary plant allows the electric power increase from 213.4 MW to 222.7 MW and the net efficiency increase of 2.14%. The trinary power facility has 0.45% higher efficiency than the dual pressure CCGT.https://www.mdpi.com/2411-5134/7/3/56Brayton cycleRankine cyclecombined cycle power plantcombined cycle gas turbineregenerationorganic Rankine cycle |
| spellingShingle | Vladimir Kindra Nikolay Rogalev Sergey Osipov Olga Zlyvko Vladimir Naumov Research and Development of Trinary Power Cycles Inventions Brayton cycle Rankine cycle combined cycle power plant combined cycle gas turbine regeneration organic Rankine cycle |
| title | Research and Development of Trinary Power Cycles |
| title_full | Research and Development of Trinary Power Cycles |
| title_fullStr | Research and Development of Trinary Power Cycles |
| title_full_unstemmed | Research and Development of Trinary Power Cycles |
| title_short | Research and Development of Trinary Power Cycles |
| title_sort | research and development of trinary power cycles |
| topic | Brayton cycle Rankine cycle combined cycle power plant combined cycle gas turbine regeneration organic Rankine cycle |
| url | https://www.mdpi.com/2411-5134/7/3/56 |
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