Effect of Water Injection on Turbine Inlet under Different Flight Conditions
Numerical simulations were conducted to research the pre-cooling effects of water injection on the turbine inlet of a turbine-based combined cycle (TBCC) engine under different flight conditions. Then, the performance of the water injection pre-compressor cooling (WIPCC) engine was calculated by mat...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/19/7447 |
| _version_ | 1827654509571080192 |
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| author | Jiamao Luo Shengfang Huang Shunhua Yang Wanzhou Zhang Zhongqiang Mu |
| author_facet | Jiamao Luo Shengfang Huang Shunhua Yang Wanzhou Zhang Zhongqiang Mu |
| author_sort | Jiamao Luo |
| collection | DOAJ |
| description | Numerical simulations were conducted to research the pre-cooling effects of water injection on the turbine inlet of a turbine-based combined cycle (TBCC) engine under different flight conditions. Then, the performance of the water injection pre-compressor cooling (WIPCC) engine was calculated by mathematical modelling with different water to air ratios (WAR). It was the first time that the mass injection field of the turbine inlet of a TBCC engine was simulated, and it was also the first time that the performance of a subcomponent turbine engine of a TBCC was assessed. The calculation results showed the relationship of the inlet temperature with respect to WAR, inlet length and flight Mach number. The strategy for inlet length and water mass flow was proposed in order to meet the requirements of pre-cooling. When the length of the turbine inlet was 10 times the diameter of the inlet exit, the air could be cooled by 167.5 K with WAR = 0.09. The highest evaporation ratio reached at 93%. Finally, the calculation results revealed the performance of the water-pre-cooled turbine engine, of which the flight envelope was expanded to Ma3.0 from Ma2.3 by pre-cooling. The engine thrust as well as the specific impulse were significantly improved. The thrust reached at 0.9 times the characteristic thrust meeting the TBCC mode transition requirement of thrust and working speed spectrum. |
| first_indexed | 2024-03-09T21:45:04Z |
| format | Article |
| id | doaj.art-76e2a1e1ba4440d8b2b055e9dd77777c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T21:45:04Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-76e2a1e1ba4440d8b2b055e9dd77777c2023-11-23T20:19:13ZengMDPI AGEnergies1996-10732022-10-011519744710.3390/en15197447Effect of Water Injection on Turbine Inlet under Different Flight ConditionsJiamao Luo0Shengfang Huang1Shunhua Yang2Wanzhou Zhang3Zhongqiang Mu4China Aerodynamics Research and Development Center, Mianyang 621000, ChinaChina Aerodynamics Research and Development Center, Mianyang 621000, ChinaChina Aerodynamics Research and Development Center, Mianyang 621000, ChinaChina Aerodynamics Research and Development Center, Mianyang 621000, ChinaChina Aerodynamics Research and Development Center, Mianyang 621000, ChinaNumerical simulations were conducted to research the pre-cooling effects of water injection on the turbine inlet of a turbine-based combined cycle (TBCC) engine under different flight conditions. Then, the performance of the water injection pre-compressor cooling (WIPCC) engine was calculated by mathematical modelling with different water to air ratios (WAR). It was the first time that the mass injection field of the turbine inlet of a TBCC engine was simulated, and it was also the first time that the performance of a subcomponent turbine engine of a TBCC was assessed. The calculation results showed the relationship of the inlet temperature with respect to WAR, inlet length and flight Mach number. The strategy for inlet length and water mass flow was proposed in order to meet the requirements of pre-cooling. When the length of the turbine inlet was 10 times the diameter of the inlet exit, the air could be cooled by 167.5 K with WAR = 0.09. The highest evaporation ratio reached at 93%. Finally, the calculation results revealed the performance of the water-pre-cooled turbine engine, of which the flight envelope was expanded to Ma3.0 from Ma2.3 by pre-cooling. The engine thrust as well as the specific impulse were significantly improved. The thrust reached at 0.9 times the characteristic thrust meeting the TBCC mode transition requirement of thrust and working speed spectrum.https://www.mdpi.com/1996-1073/15/19/7447TBCCpre-coolingengine performancewater injection |
| spellingShingle | Jiamao Luo Shengfang Huang Shunhua Yang Wanzhou Zhang Zhongqiang Mu Effect of Water Injection on Turbine Inlet under Different Flight Conditions Energies TBCC pre-cooling engine performance water injection |
| title | Effect of Water Injection on Turbine Inlet under Different Flight Conditions |
| title_full | Effect of Water Injection on Turbine Inlet under Different Flight Conditions |
| title_fullStr | Effect of Water Injection on Turbine Inlet under Different Flight Conditions |
| title_full_unstemmed | Effect of Water Injection on Turbine Inlet under Different Flight Conditions |
| title_short | Effect of Water Injection on Turbine Inlet under Different Flight Conditions |
| title_sort | effect of water injection on turbine inlet under different flight conditions |
| topic | TBCC pre-cooling engine performance water injection |
| url | https://www.mdpi.com/1996-1073/15/19/7447 |
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