In the present study, the nucleate pool boiling heat transfer characteristics of water on the hydrophilic and uncoated metal foam covers were experimentally investigated, and were compared with those on hydrophobic metal foam covers to analyze the influence of surface wettability on pool boiling heat transfer on metal foam covers. The experimental conditions cover pore densities of 5–50 PPI (pores per inch), porosities of 85%–95%, average contact angles of 0°–148.1°, heat fluxes of 0-2 × 10⁶ W/m². As the pore density increases from 5 PPI to 40 PPI, the pool boiling heat transfer coefficient in hydrophilic metal foam is increased by 10%–25%, and the critical heat flux is increased by 40%. As the porosity decreases from 95% to 85%, both the critical heat flux and the pool boiling heat transfer performance in hydrophilic metal foams are deteriorated. The surface modification effect factor EF_sm for hydrophilic metal foam varies within 1.01–1.38; EF_sm increases with the increasing heat flux, which is contrary to that for hydrophobic metal foam. The critical heat flux on hydrophilic metal foam covers with 5 PPI and 20 PPI are 1.2 × 10⁶ W/m² and 1.36 × 10⁶ W/m², respectively, which are larger than those on hydrophobic ones. A new correlation for pool boiling heat transfer coefficient on metal foam covers with different wettability was developed with an average deviation of 14.1%.

在本研究中，通过实验研究了水在亲水性和非涂层金属泡沫覆盖层上的成核池沸腾传热特性，并与疏水性金属泡沫覆盖层上的核化池沸腾传热特性进行了比较，以分析表面润湿性对金属上的池沸腾传热的影响。泡沫盖。实验条件包括5–50 PPI（孔/英寸）的孔密度，85％–95％的孔隙率，0°–148.1°的平均接触角，0-2×10 ⁶  W / m ^2的热通量。当孔密度从5 PPI增加到40 PPI时，亲水性金属泡沫中的池沸腾传热系数增加了10％–25％，临界热通量增加了40％。当孔隙率从95％降至85％时，临界热通量和亲水性金属泡沫塑料的沸腾沸腾传热性能均下降。亲水性金属泡沫的表面改性影响因子EF _sm在1.01至1.38之间变化。EF _sm随着热通量的增加而增加，这与疏水性金属泡沫相反。具有5 PPI和20 PPI的亲水性金属泡沫盖的临界热通量为1.2×10 ⁶  W / m ²和1.36×10 ⁶  W / m ²分别大于疏水性上的那些。建立了具有不同润湿性的金属泡沫覆盖物上池沸腾传热系数的新关联，其平均偏差为14.1％。