Infrared imaging as a means of characterizing temperature distributions of thermoacoustic regenerators
首发时间:2009-06-24
Abstract:The regenerator is a key component of a thermoacoustic engine (TE), its temperature distribution has a dominant influence on the onset process. In order to get better understanding of the onset mechanism of a TE, an infrared (IR) camera is used for the first time in TE study to measure the temperature distribution of the regenerator. The new method gives the evolution of the regenerator temperature and pressure of the TE, enhances the understanding of the onset process. In addition, the functions of Helmholtz resonators in onset process are studied.
keywords: thermoacoustics onset infrared imaging Helmholtz resonator
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红外成像测量热声回热器的温度分布研究
摘要:回热器是热声发动机的关键部件,回热器的温度分布是影响发动机起振过程的主要因素。为了更好地理解起振机理,第一次在热声发动机中采用红外热像仪测量回热器的温度分布。这种新的测量方式展示了回热器的温度演化过程,结合压力演化,加深了对热声发动机起振机理的认识。另外,对Helmholtz管在起振过程中的功能进行了研究。
关键词: 热声 起振 红外成像 Helmholtz管
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No.3340247967212458****
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