本文提出了基于气液分层流的水平螺旋微肋管内沸腾传热理论预测模型.在模型建立过程中,采用了与开发微肋管冷凝分层流模型类似的理论处理方法.在气液分界面以上区域,相邻微肋之间的沟槽内的半月形液面形状取决于重力和表面张力之间的静力平衡关系,其中半月形液面中的薄液膜区域的传热特性由先前提出的薄液膜蒸发模型预测;分层流液体中的传热特性由Mori等建立的基于实验数据的关联式确定.将模型理论预测值与已由的四种不同结构的微肋管、三种有机工质下得到的实验数据进行了比较,结果表明,只要不发生管内部分烧涸现象,在Fro＜2.5时,理论预测值和实验数据符合得相当好.
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