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首页> 外文会议>ASME turbo expo >DESIGN AND TESTING OF A MICROMIX COMBUSTOR WITH RECUPERATIVE WALL COOLING FOR A HYDROGEN FUELLED /j-SCALE GAS TURBINE
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DESIGN AND TESTING OF A MICROMIX COMBUSTOR WITH RECUPERATIVE WALL COOLING FOR A HYDROGEN FUELLED /j-SCALE GAS TURBINE

机译：氢致/ j-尺度燃气轮机带换热壁冷却的微型燃烧室的设计与测试

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For more than a decade up to now there is an ongoing interest in small gas turbines downsized to micro-scale. With their high energy density they offer a great potential as a substitute for today's unwieldy accumulators, found in a variety of applications like laptops, small tools etc. But micro-scale gas turbines could not only be used for generating electricity, they could also produce thrust for powering small unmanned aerial vehicles (UAVs) or similar devices.Beneath all the great design challenges with the rotating parts of the turbomachinery at this small scale, another crucial item is in fact the combustion chamber needed for a safe and reliable operation. With the so called regular micromix burning principle for hydrogen successfully downscaled in an initial combustion chamber prototype of 10 kW energy output, this paper describes a new design attempt aimed at the integration possibilities in a upscale gas turbine. For manufacturing the combustion chamber completely out of stainless steel components, a recuperative wall cooling was introduced to keep the temperatures in an acceptable range. Also a new way of an integrated ignition was developed.
机译：迄今为止，十多年来，人们一直对小型化至微型的小型燃气轮机产生兴趣。凭借其高能量密度，它们具有巨大的潜力，可以替代当今笨拙的蓄电池，可在笔记本电脑，小型工具等各种应用中找到。但是微型燃气轮机不仅可以用于发电，还可以发电为小型无人机或类似设备提供动力的推力。 在如此小的规模下，涡轮机械的旋转部件面临着所有巨大的设计挑战，事实上，另一个至关重要的项目是燃烧室的安全可靠运行。借助在10 kW能量输出的初始燃烧室原型中成功缩小规模的氢气的常规常规微混合燃烧原理，本文描述了针对高档燃气轮机集成可能性的新设计尝试。为了完全用不锈钢部件制造燃烧室，引入了换热壁冷却以将温度保持在可接受的范围内。还开发了一种集成点火的新方法。

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