期刊
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
卷 18, 期 10-11, 页码 1489-1502出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217979204024768
关键词
changing heat flux; hot-wire method; liquids; specific heat capacity; thermal conductivity; two-wire method
A prototype apparatus that uses two platinum wires for the simultaneous estimation of the thermal conductivity and specific heat capacity of liquids is described. The first wire is used both as a hot wire and a resistance thermometer, while the second one is used as a resistance thermometer. The aim of the work was to experimentally verify the advantages of employing a second wire to improve the reliability of the estimation of the properties. Three different liquids: water, propylene glycol, and a mixture of these are considered. An analytical solution with a changing heat flux is adopted. The thermal conductivity and the specific heat capacity are simultaneously estimated with a nonlinear regression (Maximum Likelihood) of the experimental data, using two-wire measurements or only hot-wire measurements. A comparison between these two approaches is reported and discussed.
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