对水力直径分别为407.2 μm(#1)和305.4μm(#2)的硅基梯形截面通道的闭合回路平板振荡热管(FP-CLPHP),以R113为工质进行了一系列实验.微通道热管中可能出现非典型振荡,与典型振荡相比主要区别在于工质返回加热端的驱动力不同.研究了此换热方式的热阻R在不同倾角(0°至90°)不同充液率下(30％至70％),于加热功率2W至10 W的变化情况.以相对空管导热热阻下降作为换热性能提升指标,两热管热阻降低分别为16.5℃/W(65.8％)和8.3℃/W(44.3％),且非典型振荡对充液率的适应性比典型振荡更好.重力对换热有明显提升效果,管径增大也可稍微提升换热.水平工况的换热性能较差,呈现的是工质对加热端长周期的间歇性冲刷.
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