Aircraft Engine Electrical Power Generation With a SOFC Combustor
Aircraft Engine Electrical Power Generation With a SOFC Combustor
复制标题
使用 SOFC 燃烧室进行飞机发动机发电
DOI：
10.1115/gt2014-27106
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
P. Therkelsen
中科院分区：
文献类型：
--
作者：
Rory A. Roberts;P. Therkelsen
下一代飞机将需要更多的机载发电能力，因为以前由发动机排气和液压驱动的系统已实现电气化，并且集成了新的电力技术。增加飞机主发动机产生的电量会降低推力能力和推力燃油消耗率 (TSFC)，但可能会增加燃油消耗率 (SFC)。提出了一种具有非常高转换效率的替代循环用于飞机上的电力生产。这种独特的循环被称为 SOFC 燃烧器，它将固体氧化物燃料电池 (SOFC) 与现有的车载燃烧发动机集成在一起。 SOFC 燃烧器产生直流 (DC) 电力并提供高温废气，用于飞机发动机的膨胀过程。 SOFC 燃烧器利用发动机压缩机的压缩空气和汽化燃料产生直流电。燃料电池未利用的燃料和空气通过能够适应燃料/空气和压力变化的空气动力学稳定燃烧系统转化为热产品。来自燃烧系统的热产物返回到主发动机用作推力或机械轴工作。将呈现对飞机发动机燃油消耗率的总体影响的系统级结果。版权所有 © 2014 ASME
Next generation aircraft will require more onboard electrical power generation capacity as systems previously powered by engine bleed and hydraulics are electrified and new electricity based technologies are integrated. Increasing the amount of electrical power generated from aircraft main engines reduces thrust capacity and thrust specific fuel consumption (TSFC), but could increase specific fuel consumption (SFC). An alternative cycle with very high conversion efficiencies is proposed for electrical power production on aircraft. The unique cycle, termed a SOFC combustor, integrates a Solid Oxide Fuel Cell (SOFC) with existing onboard combustion based engines. The SOFC combustor produces direct current (DC) electrical power and provides high temperature exhaust for use in the expansion process of the aircraft engine. The SOFC combustor utilizes compressed air from the engine’s compressor and vaporized fuel to produce DC current. Fuel and air not utilized by the fuel cell are converted to thermal products by an aerodynamically stabilized combustion system capable of adapting to fuel/air and pressure variations. Hot products from the combustion system are returned to the main engines for use as thrust or mechanical shaft work. System level results will be presented for overall impact to aircraft engine specific fuel consumption.Copyright © 2014 by ASME