Experimental Study on Ice Accretion of Aviation Jet Fuel Tube
Ice accretion on the inner surface of a fuel tube can fall off and potentially block the filters and small orifices, which thereby restricts the fuel flow to the engines during the long flying of the aircraft in cold conditions. This might cause the engines to shut down and pose a catastrophic safet...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/10/1/22 |
| _version_ | 1797439179967168512 |
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| author | Chengxiang Zhu Jingxin Wang Qingyong Bian Chunyang Liu Ning Zhao Chunling Zhu |
| author_facet | Chengxiang Zhu Jingxin Wang Qingyong Bian Chunyang Liu Ning Zhao Chunling Zhu |
| author_sort | Chengxiang Zhu |
| collection | DOAJ |
| description | Ice accretion on the inner surface of a fuel tube can fall off and potentially block the filters and small orifices, which thereby restricts the fuel flow to the engines during the long flying of the aircraft in cold conditions. This might cause the engines to shut down and pose a catastrophic safety threat. In this pursuit, the present study evaluates the effects of fuel temperature, entrained water concentration, and duration on the accretion of ice in flowing super-saturated RP-3 aviation jet fuel. A methodology for the quantitative mixing of water mist with fuel for accurately controlling water concentration was proposed. The different kinds of accreted ice, ‘fluffy’ and ‘pebbly’, were observed. As the distance of flow increased, a non-uniform distribution of ice on the cross-sectional area was noted. The amount of ice accretion increased with a decrease in the temperature from −2 °C and −12 °C, and with an increase in entrained water concentration. Besides, the amount of ice accretion showed an increasing trend as time went on and became stable after 2 h. Our experimental results can assist to gain a better understanding of the ice accretion process in flowing super-saturated fuels and may serve as a basis for the design of the aircraft fuel system and airworthiness certification. |
| first_indexed | 2024-03-09T11:49:00Z |
| format | Article |
| id | doaj.art-f52bf5ba253441a2ae40bec785139067 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-09T11:49:00Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-f52bf5ba253441a2ae40bec7851390672023-11-30T23:18:09ZengMDPI AGAerospace2226-43102022-12-011012210.3390/aerospace10010022Experimental Study on Ice Accretion of Aviation Jet Fuel TubeChengxiang Zhu0Jingxin Wang1Qingyong Bian2Chunyang Liu3Ning Zhao4Chunling Zhu5Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaKey Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaKey Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaShanghai Aircraft Airworthiness Certification Center of Civil Aviation Administration of China, Shanghai 200335, ChinaState Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaState Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaIce accretion on the inner surface of a fuel tube can fall off and potentially block the filters and small orifices, which thereby restricts the fuel flow to the engines during the long flying of the aircraft in cold conditions. This might cause the engines to shut down and pose a catastrophic safety threat. In this pursuit, the present study evaluates the effects of fuel temperature, entrained water concentration, and duration on the accretion of ice in flowing super-saturated RP-3 aviation jet fuel. A methodology for the quantitative mixing of water mist with fuel for accurately controlling water concentration was proposed. The different kinds of accreted ice, ‘fluffy’ and ‘pebbly’, were observed. As the distance of flow increased, a non-uniform distribution of ice on the cross-sectional area was noted. The amount of ice accretion increased with a decrease in the temperature from −2 °C and −12 °C, and with an increase in entrained water concentration. Besides, the amount of ice accretion showed an increasing trend as time went on and became stable after 2 h. Our experimental results can assist to gain a better understanding of the ice accretion process in flowing super-saturated fuels and may serve as a basis for the design of the aircraft fuel system and airworthiness certification.https://www.mdpi.com/2226-4310/10/1/22ice accretionfuel tubeairworthiness |
| spellingShingle | Chengxiang Zhu Jingxin Wang Qingyong Bian Chunyang Liu Ning Zhao Chunling Zhu Experimental Study on Ice Accretion of Aviation Jet Fuel Tube Aerospace ice accretion fuel tube airworthiness |
| title | Experimental Study on Ice Accretion of Aviation Jet Fuel Tube |
| title_full | Experimental Study on Ice Accretion of Aviation Jet Fuel Tube |
| title_fullStr | Experimental Study on Ice Accretion of Aviation Jet Fuel Tube |
| title_full_unstemmed | Experimental Study on Ice Accretion of Aviation Jet Fuel Tube |
| title_short | Experimental Study on Ice Accretion of Aviation Jet Fuel Tube |
| title_sort | experimental study on ice accretion of aviation jet fuel tube |
| topic | ice accretion fuel tube airworthiness |
| url | https://www.mdpi.com/2226-4310/10/1/22 |
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