There has been a recent need for rapid response power generation device on aircraft. Current power generators consume a large portion of the aircraft’s usable volume, and they are also extremely heavy relative to their power output; therefore, the need for compact, power-dense auxiliary power units or bleed air turbine (BAT) arose. A solution comes in the form of coupling rotating detonation engines (RDEs) with a turbine generator. Previous work on RDE turbine integration has been successfully demonstrated with significant power extraction, but a modification leading to a more compact form with higher power density would be beneficial. Therefore, a new type of RDE referred to as the radial rotating detonation engine (RRDE) was developed for use as a combustor for a BAT. This design was based on a disk-shaped device within which reactants flow from the outer radius, detonate, and then exit the inner radius. Here the flow was routed into a compact centrifugal turbocharger turbine to extract the power. The power extracted from the turbine was measured using the compressor side of the turbocharger as a brake. Three different nozzle guide vanes changed the flow angle into the turbine. Various mechanisms of backpressuring the device were also accomplished over a range of mass flows. The results show significant power output from the device of over 60 kW at an operational speed over 110 kRPM. The RRDE configuration suffers from losses in the system, but has the potential for overall thermal efficiencies of up to 40%. The results also suggested that the interactions between the combustion chamber and the nozzle guide vanes may be a large source of losses. Finally, the addition of compressor backpressure and turbine backpressure plates did not affect the operating mode of the RRDE, but did improve the output power of the system.

最近需要飞机上的快速响应发电装置。当前的发电机消耗了飞机可用空间的很大一部分，并且相对于其功率输出，它们也非常沉重。因此，需要紧凑的功率密集型辅助动力装置或引气式涡轮（BAT）。一种解决方案是将旋转爆震发动机（RDE）与涡轮发电机耦合。RDE涡轮机集成的先前工作已通过大量的功率成功地进行了演示，但是将其修改为具有更高功率密度的更紧凑形式的修改将是有益的。因此，开发了一种新型的RDE，称为径向旋转爆震发动机（RRDE），用作BAT的燃烧器。该设计基于一个盘形装置，反应物在该装置中从外半径流出，引爆然后离开内半径。在这里，气流被输送到紧凑型离心式涡轮增压器涡轮中以提取功率。使用涡轮增压器的压缩机侧作为制动器来测量从涡轮提取的功率。三个不同的喷嘴导向叶片改变了进入涡轮的流量角。在一定质量流量范围内，还完成了各种装置的反压机制。结果表明，在110 kRPM的工作速度下，该设备可输出超过60 kW的显着功率。RRDE配置遭受系统损耗，但具有高达40％的整体热效率的潜力。结果还表明，燃烧室和喷嘴导向叶片之间的相互作用可能是造成损失的主要来源。最后，增加压缩机背压板和涡轮背压板不会影响RRDE的运行模式，但会提高系统的输出功率。