本文采用可视化研究方法,在常压下,对浸没在丙酮工质中的多尺度烧结表面与纯铜光表面的沸腾传热特性进行了比较研究。结果表明,与光表面相比多尺度烧结表面核化点密集,产生的汽泡具有数量大、体积小的特点,可以显著降低沸腾起始点所需的过热度,在相同热流密度条件下,具有较好的换热效果。 In this paper, a visual research method was used to study the boiling heat transfer characteristics of multi-scale sintered and pure copper surfaces immersed in acetone at atmospheric pressure. The results show that compared with the light surface, the nucleation sites of multi-scale sintering are dense and the bubbles generated are large in volume and small in size, which can significantly reduce the superheat required by the starting point of boiling. Under the same heat flux density, Better heat transfer effect.