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Ultima descărcare din IBN: 2024-01-26 10:28 |
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004.94+621.438 (2) |
Application-oriented computer-based techniques (440) |
Heat engines (except steam engines) (84) |
SM ISO690:2012 МАТЮНИН, Олег, БАЧЕВ, Николай, ШИЛОВА, Алена. Анализ результатов численного моделирования горения попутного нефтяного газа в конвертируемой камере микрогазотурбинной энергоустановки. In: Problemele Energeticii Regionale, 2023, nr. 1(57), pp. 111-126. ISSN 1857-0070. DOI: https://doi.org/10.52254/1857-0070.2023.1-57.09 |
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Problemele Energeticii Regionale | ||||||
Numărul 1(57) / 2023 / ISSN 1857-0070 | ||||||
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DOI:https://doi.org/10.52254/1857-0070.2023.1-57.09 | ||||||
CZU: 004.94+621.438 | ||||||
Pag. 111-126 | ||||||
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When developing prospective gas turbine plants or converting existing ones for burning non-standard fuel gases, one of the main tasks is creation of low-emission combustion chambers with sta-ble combustion. At the stage of sketch design, the parameters of recycling chambers are usually de-termined using engineering calculation methods. Methods of numerical modeling of the working pro-cess allow to clarify the obtained parameters and significantly reduce the costs of creating a combus-tion chamber thanks to the numerical experiment. The purpose of this work is to develop recommen-dations for converting existing combustion chambers of microgas-turbine power plants to utilize non-standard fuel gases. To achieve the goal, the problem of numerical modeling of the working process with and without a stepwise air supply to the combustion zone was solved. The most significant result of the conducted studies is provision of stable combustion due to the change in the medium speed along the combustion zone with stepwise air supply and due to intensification of the reverse currents zone from the swirler with continuous air supply. The significance of the obtained results is that the proposed recommendations for converting a low-emission combustion chamber from components (kerosene+air) to components (combined petroleum gas+air) while keeping the diameter and length of the chamber unchanged, with changing the location of only the side holes. In this work, a three-dimensional numerical model of turbulent combustion for utilizing associated petroleum gases was developed to take into account the real operational conditions in a two-zone combustion chamber and analyze the performance characteristics. |
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Cuvinte-cheie Combustion chamber, numerical modeling, emission of harmful substances, nitrogen oxides, cameră de ardere, simulare numerică, emisie de substanțe nocive, oxizi de azot, Камера сгорания, численное моделирование, эмиссия вредных веществ, оксиды азота |
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