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强化传热期刊
影响因子: 0.562 5年影响因子: 0.605 SJR: 0.175 SNIP: 0.361 CiteScore™: 0.33

ISSN 打印: 1065-5131
ISSN 在线: 1026-5511

强化传热期刊

DOI: 10.1615/JEnhHeatTransf.2018026383
pages 161-167

DEVICE FOR MEASURING THE THERMAL CONDUCTIVITY OF ORGANIC SUBSTANCES AT LOW TEMPERATURES

Ainura Shinbayeva
Al-Farabi Kazakh National University, al-Farabi Ave. 71, Almaty, 050040, Kazakhstan
A. Aldiyarov
Al-Farabi Kazakh National University, al-Farabi Ave. 71, Almaty, 050040, Kazakhstan
A. Drobyshev
Al-Farabi Kazakh National University, al-Farabi Ave. 71, Almaty, 050040, Kazakhstan
M. Zhubaniyazova
K. Zhubanov Aktobe Regional State University, A. Moldagulova Ave. 34, Aktobe, 030000, Kazakhstan

ABSTRACT

An installation designed for measuring the thermal conductivity of organic materials, including biological tissues, is described at temperatures below room temperature up to 100 K using the method of stationary heat flow. The advantages of the installation include the ability to set the temperature regime of freezing the sample, smoothly changing the rate of temperature front movement in the sample during cooling. The output of the device to the preset stationary mode and the measurements are carried out automatically. The values of the coefficient of thermal conductivity of the muscle tissue calculated on the basis of the measurement results when the samples are cooled in the temperature range from 280 K to 100 K are in good agreement with the literature data.