期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 11, 期 7, 页码 5769-5774出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2011.4399
关键词
Nanofluids; Heat Transfer Coefficient; Thermal Conductivity; Plate Heat Exchanger
In this paper, the heat transfer characteristics and pressure drop of the ZnO and Al(2)O(3) nanofluids in a plate heat exchanger were studied. The experimental conditions were 100-500 Reynolds number and the respective volumetric flow rates. The working temperature of the heat exchanger was within 20-40 degrees C. The measured thermophysical properties, such as thermal conductivity and kinematic viscosity, were applied to the calculation of the convective heat transfer coefficient of the plate heat exchanger employing the ZnO and Al(2)O(3) nanofluids made through a two-step method. According to the Reynolds number, the overall heat transfer coefficient for 6 vol% Al(2)O(3) increased to 30% because at the given viscosity and density of the nanofluids, they did not have the same flow rates. At a given volumetric flow rate, however, the performance did not improve. After the nanofluids were placed in the plate heat exchanger, the experimental results pertaining to nanofluid efficiency seemed inauspicious.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据