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以水为工质 ,在常压下对竖直和倾斜环隙流道进行了自然对流沸腾换热实验研究 ,给出并讨论了间隙大小、热负荷、倾角和表面张力对换热性能的影响 ,可视化观察加深了对窄小空间沸腾现象的认识。在实验的基础上 ,提出了一个新的、可以较方便使用的传热计算关联式。
Taking water as the working fluid, natural convection boiling heat transfer experiments were conducted at vertical and inclined annular flow channels under normal pressure. The effects of gap size, thermal load, dip angle and surface tension on heat transfer performance were also discussed , Visual observation deepens the understanding of the phenomenon of small space boiling. Based on the experiment, a new correlation calculation method of heat transfer is proposed.