纳米流体应用于平板式热管热回收装置的实验研究

摘要

本文针对一种适用于民用建筑热回收的平板式热管热回收装置,分别以体积浓度为0.001％、0.01％以及0.1％的δ-Al2O3-R141b纳米流体作为工质,对该热回收装置的热回收效率进行了实验研究,并与将R141b作为工质时的热回收效率进行了比较.实验结果显示:与采用R141b工质相比,体积浓度为0.01％的纳米流体的热回收效率最好,体积浓度为0.001％的纳米流体的热回收效率与R141b基本保持一致；采用体积浓度为0.1％的纳米流体作为工质时,热回收装置的效率会大幅度降低.%In this paper, an experiment on the flat plate heat pipe heat recovery equipment applied for residential buildings was carried out.in which δ-Al2O3-R141b nanofluid with the volume fraction of 0. 001% ,0. 01% and 0. 1% were used as the working fluid. The heat recovery efficiencies were measured and compared with those of the working fluid of R141b. The results indicated that the volume fraction of 0. 01% has the highest heat recovery efficiency, the heat recovery efficiency of the volume fraction of 0. 001% was almost the same as that of the working fluid of R141b,while for the volume fraction of 0. 1% ,the efficiency decreased greatly.