新闻动态
新闻中心
International Journal of Refrigeration 发表博士生彭浩为第一作者的研究论文
2009-08-05
International Journal of Refrigeration 2009年第6期刊出彭浩所写的论文,介绍纳米制冷剂的传热特性。
这是本研究室在今年发表的第12篇国际学术期刊论文,也是今年在International Journal of Refrigeration上发表的第6篇论文。
论文的题目与摘要如下:
ABSTRACT:The objective of this paper is to investigate the influence of nanoparticles on the heat transfer characteristics of refrigerant-based nanofluid flow boiling inside a horizontal smooth tube, and to present a correlation for predicting heat transfer performance of refrigerant-based nanofluid. For the convenience of preparing refrigerant-based nanofluid, R113 refrigerant and CuO nanoparticles were used. Experimental conditions include an evaporation pressure of 78.25 kPa, mass fluxes from 100 to 200 kg×m-2×s-1, heat fluxes from 3.08 to 6.16 kW×m-2, inlet vapor qualities from 0.2 to 0.7, and mass fractions of nanoparticles from 0 to 0.5 wt %. The experimental results show that the heat transfer coefficient of refrigerant-based nanofluid is larger than that of pure refrigerant, and the maximum enhancement of heat transfer coefficient is 29.7%. A heat transfer correlation for refrigerant-based nanofluid is proposed, and the predictions agree with 93% of the experimental data within the deviation of ±20%.
Keywords: boiling; correlation; flow; heat transfer; particle; refrigerant