The impact of sustainable aviation fuels on aircraft fuel line ice formation and pump performance

The impact of sustainable aviation fuels on aircraft fuel line ice formation and pump performance
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可持续航空燃料对飞机燃油管结冰和泵性能的影响

DOI:
10.1017/aer.2023.6
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发表时间:
2023
期刊:
The Aeronautical Journal
影响因子:
--
通讯作者:
Ugbeh-Johnson J
Ugbeh-Johnson J
中科院分区:
--
文献类型:
--
作者:
Ugbeh-Johnson J

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随着航空业面临越来越多的环境和能源挑战,对可持续航空燃料(SAF)的需求不断增长。以往的研究表明,积冰,释放和堵塞在航空相关的事件和事故与传统的喷气燃料的作用。然而,没有可用的数据来确定新燃料组合物将对飞机燃料系统中的冰形成和积冰造成的影响的大小。空中客车公司建造了一个能够在4小时内将燃料从环境温度冷却到−30°C的再循环燃料试验台,以模拟飞机机翼油箱中的条件,并允许表征积冰。关键特征是所探索的不同SAF的内联燃料过滤器上的压降,但也对单个实验运行进行了过滤器网(用于保护燃料供给泵的过滤器)上积冰的目视分析,以进行比较。测量显示,与测试的SAF相比,100%传统燃油的过滤器堵塞倾向更高。然而,所有SAF共混物表现不同,因为与Jet A-1燃料的共混比对不同温度下的压差有影响。这项工作的数据对于建立未来飞机燃油系统安全运行的信心至关重要,这些燃油系统可能与100% SAF兼容。
With the aviation industry facing increasing environmental and energy challenges, there has been a growing demand for sustainable aviation fuel (SAF). Previous studies have shown the role of ice accretion, release and blockage in aviation-related incidents and accidents with conventional jet fuel. However, there is no available data that establishes the magnitude of influence new fuel compositions will pose on ice formation and accretion in aircraft fuel systems. A recirculating fuel test rig capable of cooling fuel from ambient to −30°C within 4h was built by Airbus to simulate conditions in an aircraft wing tank and allow characterisation of ice accretion. The key characteristic was the pressure drop across an inline fuel strainer for the different SAF explored but visual analysis of ice accretion on the strainer mesh (filters used in protecting fuel feed pumps) was also performed for individual experimental runs for comparison. Measurements revealed that 100% conventional fuel exhibited a higher propensity to strainer blockage compared to the SAF tested. However, all SAF blends behaved differently as the blending ratio with Jet A-1 fuel had an impact on the pressure differential at different temperatures. Data from this work are essential to establish confidence in the safe operation of future aircraft fuel systems that will potentially be compatible with 100 % SAF.
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