存在预测淹没蒸发管束性能的相关性，但目前不考虑混相油的影响。对于采用容积式压缩机设计的冷水机组，如果油分离效率不是100%，油对传热性能和机组效率的影响通常是显著的。在提供“无油”轴承的最先进压缩机技术上市之前，传热研究必须继续对这些油效应进行表征。这个研究项目的目的是回顾美国的情况- 在管束沸腾实验工作和预测方法方面，将光滑管和强化管试验作为单管和带油/不带油的管束进行，开发单管和管束沸腾模型和通用预测方法，包括油效应，并开发带油效应的两相压降预测方法。试验液体为R-22、R-410A和R-507A，有油和无油。

Correlation for the prediction of flooded evaporation tube bundle performance exists, but currently does not allow for the effects of miscible oils to be taken into account. For water chillers designed with positive displacement compressors, if oil separation is not 100% efficient, the influence of oil upon heat transfer performance and unit efficiency is typically significant. Until state-of-the-art compressor technology offering "oil-free" bearings is available in the market, heat transfer research must continue with the characterization of these oil effects.The objective of this research project is to review the state-of-the-art of bundle boiling experimental work and prediction methods, perform smooth tube and enhanced tube tests as single-tubes and as tube bundles with/without oil, develop single-tube and bundle boiling models and prediction methods for general use including oil effects and develop two-phase pressure drop prediction method with oil effects. The test fluids are R-22, R-410A and R-507A with and without oil.