Improvement of mixing processes in the combustion chamber of thermal engines
This paper considers the possibilities of improving the reliability and efficiency of the aircraft engine, which are one of the main indicators of quality and require high-quality fuel. Modern gas turbine engines (GTE) are much more powerful and economical compared with those produced 50 years ago....
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| Format: | Article |
| Language: | English |
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National Aerospace University «Kharkiv Aviation Institute»
2022-08-01
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| Series: | Авіаційно-космічна техніка та технологія |
| Subjects: | |
| Online Access: | http://nti.khai.edu/ojs/index.php/aktt/article/view/1757 |
| _version_ | 1797756488037433344 |
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| author | Iryna Morozova Yuriy Tereshchenko Vasyl Yehunko |
| author_facet | Iryna Morozova Yuriy Tereshchenko Vasyl Yehunko |
| author_sort | Iryna Morozova |
| collection | DOAJ |
| description | This paper considers the possibilities of improving the reliability and efficiency of the aircraft engine, which are one of the main indicators of quality and require high-quality fuel. Modern gas turbine engines (GTE) are much more powerful and economical compared with those produced 50 years ago. Nevertheless, manufacturers are constantly working to improve gas turbine engines with the main emphasis on their fuel efficiency. Mechanical impurities present in the fuel can clog the fuel filters, thereby cutting off the fuel supply. The presence of resins in the fuel leads to the formation of various deposits on engine parts, and the content of sulfur, acids and alkalis increases the corrosiveness of the fuel. The completeness of combustion and the tendency of carbon formation are the main performance characteristics of hydrocarbon fuels, which are of great practical importance in improving the efficiency and service life of the engine. Currently, there are many options for improving technical and economic indicators. The proposed ways to prepare a better fuel mixture before supplying it to the engine. The preparation of aviation fuel is carried out because of the electrophysical effects on the fuel. The electrophysical effect on the fuel is determined by a magnetic installation with a sign-changing magnetic field. Studies were conducted to determine the effect of electrophysical impact on the completeness of combustion of aviation fuel and carbon formation in the combustion chamber of a gas turbine engine. The method allows to give a comparative assessment of the completeness of combustion and carbon formation of fuels for engines with a small amount of fuel consumed for testing. It has been established that under electrophysical action on aviation fuel, the fuel combustion efficiency increases by 10...12 %, carbon formation in the gas turbine engine combustion chamber decreases by 20...25 %. The positive effect on the combustion process in the previous phases decreases the afterburning phase, therefore, a decrease in the temperature of the exhaust gases, a decrease in the concentration of nitrogen oxide by 12...16 %, carbon monoxide by 0.64...0.7 % and hydrocarbon by 25...35 %. After the electrophysical impact and the fuel running time, the content of resinous compounds increased four times, the content of oxygen compounds decreased by ~23 %, and the content of sulfur compounds decreased by ~25 %. |
| first_indexed | 2024-03-12T18:02:14Z |
| format | Article |
| id | doaj.art-2c209a9cf72349a4a3c4080eaf833805 |
| institution | Directory Open Access Journal |
| issn | 1727-7337 2663-2217 |
| language | English |
| last_indexed | 2024-03-12T18:02:14Z |
| publishDate | 2022-08-01 |
| publisher | National Aerospace University «Kharkiv Aviation Institute» |
| record_format | Article |
| series | Авіаційно-космічна техніка та технологія |
| spelling | doaj.art-2c209a9cf72349a4a3c4080eaf8338052023-08-02T09:35:21ZengNational Aerospace University «Kharkiv Aviation Institute»Авіаційно-космічна техніка та технологія1727-73372663-22172022-08-0104sup110.32620/aktt.2022.4sup1.041724Improvement of mixing processes in the combustion chamber of thermal enginesIryna Morozova0Yuriy Tereshchenko1Vasyl Yehunko2National Aviation University, KyivNational Aviation University, KyivNational Aviation University, KyivThis paper considers the possibilities of improving the reliability and efficiency of the aircraft engine, which are one of the main indicators of quality and require high-quality fuel. Modern gas turbine engines (GTE) are much more powerful and economical compared with those produced 50 years ago. Nevertheless, manufacturers are constantly working to improve gas turbine engines with the main emphasis on their fuel efficiency. Mechanical impurities present in the fuel can clog the fuel filters, thereby cutting off the fuel supply. The presence of resins in the fuel leads to the formation of various deposits on engine parts, and the content of sulfur, acids and alkalis increases the corrosiveness of the fuel. The completeness of combustion and the tendency of carbon formation are the main performance characteristics of hydrocarbon fuels, which are of great practical importance in improving the efficiency and service life of the engine. Currently, there are many options for improving technical and economic indicators. The proposed ways to prepare a better fuel mixture before supplying it to the engine. The preparation of aviation fuel is carried out because of the electrophysical effects on the fuel. The electrophysical effect on the fuel is determined by a magnetic installation with a sign-changing magnetic field. Studies were conducted to determine the effect of electrophysical impact on the completeness of combustion of aviation fuel and carbon formation in the combustion chamber of a gas turbine engine. The method allows to give a comparative assessment of the completeness of combustion and carbon formation of fuels for engines with a small amount of fuel consumed for testing. It has been established that under electrophysical action on aviation fuel, the fuel combustion efficiency increases by 10...12 %, carbon formation in the gas turbine engine combustion chamber decreases by 20...25 %. The positive effect on the combustion process in the previous phases decreases the afterburning phase, therefore, a decrease in the temperature of the exhaust gases, a decrease in the concentration of nitrogen oxide by 12...16 %, carbon monoxide by 0.64...0.7 % and hydrocarbon by 25...35 %. After the electrophysical impact and the fuel running time, the content of resinous compounds increased four times, the content of oxygen compounds decreased by ~23 %, and the content of sulfur compounds decreased by ~25 %.http://nti.khai.edu/ojs/index.php/aktt/article/view/1757повнота згораннянагароутвореннякамера згорання газотурбінного двигунаелектромагнітний впливпротизносні властивостіпаливо |
| spellingShingle | Iryna Morozova Yuriy Tereshchenko Vasyl Yehunko Improvement of mixing processes in the combustion chamber of thermal engines Авіаційно-космічна техніка та технологія повнота згорання нагароутворення камера згорання газотурбінного двигуна електромагнітний вплив протизносні властивості паливо |
| title | Improvement of mixing processes in the combustion chamber of thermal engines |
| title_full | Improvement of mixing processes in the combustion chamber of thermal engines |
| title_fullStr | Improvement of mixing processes in the combustion chamber of thermal engines |
| title_full_unstemmed | Improvement of mixing processes in the combustion chamber of thermal engines |
| title_short | Improvement of mixing processes in the combustion chamber of thermal engines |
| title_sort | improvement of mixing processes in the combustion chamber of thermal engines |
| topic | повнота згорання нагароутворення камера згорання газотурбінного двигуна електромагнітний вплив протизносні властивості паливо |
| url | http://nti.khai.edu/ojs/index.php/aktt/article/view/1757 |
| work_keys_str_mv | AT irynamorozova improvementofmixingprocessesinthecombustionchamberofthermalengines AT yuriytereshchenko improvementofmixingprocessesinthecombustionchamberofthermalengines AT vasylyehunko improvementofmixingprocessesinthecombustionchamberofthermalengines |