使用纯氨和氨与可混溶润滑剂的混合物，使用普通钢管进行池沸腾试验。通过对比实验结果，定量分析了互溶润滑剂对氨壳程沸腾传热系数的影响。实验涵盖了从-23.3ºC到7.2ºC（-10ºF到45ºF）的饱和温度和高达60 kW/m2[19000 Btu/（h·ft2）]的热流。氨的核沸腾发生在19.1毫米（0.75英寸）的普通钢管外直径该管由内部流动的液体加热，以模拟真实的热交换装置。在质量浓度为0%、1%、5%和10%的条件下，对可与氨混溶的聚亚烷基乙二醇润滑剂进行了测试。 实验结果表明，在特定的饱和温度和热流密度下，当油浓度达到5%时，传热系数一般先降低。然后，随着油浓度进一步增加至10%，系数显著增加。在较低温度和较高热流密度下，传热系数随润滑剂浓度的增加而减小，并保持不变。可混溶润滑剂的效果强烈依赖于饱和温度，而弱依赖于热流。由于混溶润滑剂，传热性能的最大退化发生在当前的低温下。 23.3ºC，其中传热系数最多可降低33%。建立了具有和不具有润滑剂效应的传热系数的一般关联式。转载自《国际供暖、通风、空调和制冷研究杂志》，第7卷，第2期，2001年4月，pp.Units:DualCitation:ASHRAE Transactions，第107卷，第。2.

Pool boiling tests were conducted with plain steel tubing using pure ammonia and a mixture of ammonia and a miscible lubricant. By comparing the results, the effect of miscible lubricant on shell-side boiling heat transfer coefficient of ammonia was quantified. The experiment covered saturation temperature from -23.3ºC to 7.2ºC (-10ºF to 45ºF) and heat flux up to 60 kW/m2[19,000 Btu/(h·ft2)]. Nucleate boiling of ammonia took place outside a plain steel tube of 19.1 mm (0.75 in.) diameter. The tube was heated by liquid flowing inside to simulate a real heat exchange device. A polyalkylene glycol lubricant, miscible with ammonia, was tested at 0%, 1%, 5%, and 10% mass concentrations. The experimental results showed that under a particular saturation temperature and heat flux, the heat transfer coefficient generally first decreased with an increase in oil concentration up to 5%. It was then followed by an insignificant increase in the coefficient with a further increase in oil concentration to 10%. At a low temperature and a high heat flux, the heat transfer coefficient decreased with the lubricant concentration and stayed constant. The effect of miscible lubricant strongly depends on saturation temperature and weakly depends on heat flux. The largest degradation of heat transfer performance due to the miscible lubricant occurs at the present low temperature of.23.3ºC where the heat transfer coefficient can be reduced by up to 33%. A general correlation was developed for heat transfer coefficients both with and without lubricant effect.Reprinted from the International Journal of Heating, Ventilating, Air-Conditioning and Refrigerating Research, Vol. 7, No. 2, April 2001, pp.Units: Dual