Development of a Hydrogen-fueled Pulse Detonation Combustor for 1 kW-class Micro Gas Turbine
Development of a Hydrogen-fueled Pulse Detonation Combustor for 1 kW-class Micro Gas Turbine
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DOI：
10.2514/6.2010-6881
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发表时间：
2010-07
期刊：
影响因子：
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通讯作者：
S. Takashi;Yuasa Saburo
中科院分区：
文献类型：
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作者：
S. Takashi;Yuasa Saburo
为提高1kW级微型燃气轮机的热效率，开发了长度为200mm、体积为120cm的小型氢燃料脉冲爆震燃烧室。提出多端口燃油喷射来控制预混合物的空间和时间浓度。对于平行和逆流注射情况，通过纹影摄影来表征预混合物流动行为，并使用热线浓度探针进行浓度测量。使用引发剂在小于 180 毫米的短 DDT 距离内实现爆炸。
A small, hydrogen-fueled pulse detonation combustor with a length of 200 mm and a volume of 120 cm was developed for 1 kW-class micro gas turbines to improve the thermal efficiency. The multi-port fuel injection was proposed to control both spatial and temporal concentration of the premixture. For the parallel and counterflow injection cases, the premixture flow behavior was characterized by the schlieren photography and the concentration measurement were conducted using a hot-wire concentration probe. Detonation was achieved in a short DDT distance of less than 180 mm using initiators.