纳米技术在强化传热中应用的研究进展

摘要

采用纳米技术,通过改变传热流体的物性和流动特征以及传热表面的特性,能有效地强化传热.本文综述了纳米流体、纳米胶囊粒子潜热型热流体以及纳米涂层表面在强化传热中应用的研究进展,分析了各种纳米技术的强化传热机理,指出了现有研究工作存在的问题和今后研究的方向.%Heat transfer rate can be effectively enhanced by modifying the flow and thermal characteristics of the heat transfer fluid and the surface properties by applying nanotechnology. The progress of applications of nanofluids, latent-heat thermal fluids by using nano-encapsulation phase change materials and nano-coated surface in heat transfer enhancement are summarized. The mechansims of heat transfer enhancement for the different nanotechnologies are analyzed, the existing problems in these researches and the prospect of application are discussed.